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gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gsth265parser.c
Aleksandr Slobodeniuk a98330636a h264/h265parser: clarify some gtk-doc annotations 
Needed for the documentation since the transfer
is not obvious.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5287>
2023-09-08 13:41:01 +00:00

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/* Gstreamer H.265 bitstream parser
* Copyright (C) 2012 Intel Corporation
* Copyright (C) 2013 Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* Contact: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:gsth265parser
* @title: GstH265Parser
* @short_description: Convenience library for h265 video bitstream parsing.
*
* It offers you bitstream parsing in HEVC mode and non-HEVC mode. To identify
* Nals in a bitstream and parse its headers, you should call:
*
* * gst_h265_parser_identify_nalu() to identify the following nalu in
* non-HEVC bitstreams
*
* * gst_h265_parser_identify_nalu_hevc() to identify the nalu in
* HEVC bitstreams
*
* Then, depending on the #GstH265NalUnitType of the newly parsed #GstH265NalUnit,
* you should call the differents functions to parse the structure:
*
* * From #GST_H265_NAL_SLICE_TRAIL_N to #GST_H265_NAL_SLICE_CRA_NUT: gst_h265_parser_parse_slice_hdr()
*
* * `GST_H265_NAL_*_SEI`: gst_h265_parser_parse_sei()
*
* * #GST_H265_NAL_VPS: gst_h265_parser_parse_vps()
*
* * #GST_H265_NAL_SPS: gst_h265_parser_parse_sps()
*
* * #GST_H265_NAL_PPS: #gst_h265_parser_parse_pps()
*
* * Any other: gst_h265_parser_parse_nal()
*
* Note: You should always call gst_h265_parser_parse_nal() if you don't
* actually need #GstH265NalUnitType to be parsed for your personal use, in
* order to guarantee that the #GstH265Parser is always up to date.
*
* For more details about the structures, look at the ITU-T H.265
* specifications, you can download them from:
*
* * ITU-T H.265: http://www.itu.int/rec/T-REC-H.265
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "nalutils.h"
#include "gsth265parser.h"
#include <gst/base/gstbytereader.h>
#include <gst/base/gstbitreader.h>
#include <string.h>
#include <math.h>
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT gst_h265_debug_category_get()
static GstDebugCategory *
gst_h265_debug_category_get (void)
{
static gsize cat_gonce = 0;
if (g_once_init_enter (&cat_gonce)) {
GstDebugCategory *cat = NULL;
GST_DEBUG_CATEGORY_INIT (cat, "codecparsers_h265", 0, "h265 parse library");
g_once_init_leave (&cat_gonce, (gsize) cat);
}
return (GstDebugCategory *) cat_gonce;
}
#endif /* GST_DISABLE_GST_DEBUG */
/**** Default scaling_lists according to Table 7-5 and 7-6 *****/
/* Table 7-5 */
static const guint8 default_scaling_list0[16] = {
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16
};
/* Combined the values in Table 7-6 to make the calculation easier
* Default scaling list of 8x8 and 16x16 matrices for matrixId = 0, 1 and 2
* Default scaling list of 32x32 matrix for matrixId = 0
*/
static const guint8 default_scaling_list1[64] = {
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 16,
17, 16, 17, 18, 17, 18, 18, 17, 18, 21, 19, 20,
21, 20, 19, 21, 24, 22, 22, 24, 24, 22, 22, 24,
25, 25, 27, 30, 27, 25, 25, 29, 31, 35, 35, 31,
29, 36, 41, 44, 41, 36, 47, 54, 54, 47, 65, 70,
65, 88, 88, 115
};
/* Combined the values in Table 7-6 to make the calculation easier
* Default scaling list of 8x8 and 16x16 matrices for matrixId = 3, 4 and 5
* Default scaling list of 32x32 matrix for matrixId = 1
*/
static const guint8 default_scaling_list2[64] = {
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17,
17, 17, 17, 18, 18, 18, 18, 18, 18, 20, 20, 20,
20, 20, 20, 20, 24, 24, 24, 24, 24, 24, 24, 24,
25, 25, 25, 25, 25, 25, 25, 28, 28, 28, 28, 28,
28, 33, 33, 33, 33, 33, 41, 41, 41, 41, 54, 54,
54, 71, 71, 91
};
static const guint8 zigzag_4x4[16] = {
0, 1, 4, 8,
5, 2, 3, 6,
9, 12, 13, 10,
7, 11, 14, 15,
};
static const guint8 zigzag_8x8[64] = {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63
};
static const guint8 uprightdiagonal_4x4[16] = {
0, 4, 1, 8,
5, 2, 12, 9,
6, 3, 13, 10,
7, 14, 11, 15
};
static const guint8 uprightdiagonal_8x8[64] = {
0, 8, 1, 16, 9, 2, 24, 17,
10, 3, 32, 25, 18, 11, 4, 40,
33, 26, 19, 12, 5, 48, 41, 34,
27, 20, 13, 6, 56, 49, 42, 35,
28, 21, 14, 7, 57, 50, 43, 36,
29, 22, 15, 58, 51, 44, 37, 30,
23, 59, 52, 45, 38, 31, 60, 53,
46, 39, 61, 54, 47, 62, 55, 63
};
typedef struct
{
guint par_n, par_d;
} PAR;
/* Table E-1 - Meaning of sample aspect ratio indicator (1..16) */
static const PAR aspect_ratios[17] = {
{0, 0},
{1, 1},
{12, 11},
{10, 11},
{16, 11},
{40, 33},
{24, 11},
{20, 11},
{32, 11},
{80, 33},
{18, 11},
{15, 11},
{64, 33},
{160, 99},
{4, 3},
{3, 2},
{2, 1}
};
/***** Utils ****/
#define EXTENDED_SAR 255
static GstH265VPS *
gst_h265_parser_get_vps (GstH265Parser * parser, guint8 vps_id)
{
GstH265VPS *vps;
vps = &parser->vps[vps_id];
if (vps->valid)
return vps;
return NULL;
}
static GstH265SPS *
gst_h265_parser_get_sps (GstH265Parser * parser, guint8 sps_id)
{
GstH265SPS *sps;
sps = &parser->sps[sps_id];
if (sps->valid)
return sps;
return NULL;
}
static GstH265PPS *
gst_h265_parser_get_pps (GstH265Parser * parser, guint8 pps_id)
{
GstH265PPS *pps;
pps = &parser->pps[pps_id];
if (pps->valid)
return pps;
return NULL;
}
static gboolean
gst_h265_parse_nalu_header (GstH265NalUnit * nalu)
{
guint8 *data = nalu->data + nalu->offset;
GstBitReader br;
if (nalu->size < 2)
return FALSE;
gst_bit_reader_init (&br, data, nalu->size - nalu->offset);
/* skip the forbidden_zero_bit */
gst_bit_reader_skip_unchecked (&br, 1);
nalu->type = gst_bit_reader_get_bits_uint8_unchecked (&br, 6);
nalu->layer_id = gst_bit_reader_get_bits_uint8_unchecked (&br, 6);
nalu->temporal_id_plus1 = gst_bit_reader_get_bits_uint8_unchecked (&br, 3);
nalu->header_bytes = 2;
return TRUE;
}
struct h265_profile_string
{
GstH265Profile profile;
const gchar *name;
};
static const struct h265_profile_string h265_profiles[] = {
/* keep in sync with definition in the header */
{GST_H265_PROFILE_MAIN, "main"},
{GST_H265_PROFILE_MAIN_10, "main-10"},
{GST_H265_PROFILE_MAIN_STILL_PICTURE, "main-still-picture"},
{GST_H265_PROFILE_MONOCHROME, "monochrome"},
{GST_H265_PROFILE_MONOCHROME_12, "monochrome-12"},
{GST_H265_PROFILE_MONOCHROME_16, "monochrome-16"},
{GST_H265_PROFILE_MAIN_12, "main-12"},
{GST_H265_PROFILE_MAIN_422_10, "main-422-10"},
{GST_H265_PROFILE_MAIN_422_12, "main-422-12"},
{GST_H265_PROFILE_MAIN_444, "main-444"},
{GST_H265_PROFILE_MAIN_444_10, "main-444-10"},
{GST_H265_PROFILE_MAIN_444_12, "main-444-12"},
{GST_H265_PROFILE_MAIN_INTRA, "main-intra"},
{GST_H265_PROFILE_MAIN_10_INTRA, "main-10-intra"},
{GST_H265_PROFILE_MAIN_12_INTRA, "main-12-intra"},
{GST_H265_PROFILE_MAIN_422_10_INTRA, "main-422-10-intra"},
{GST_H265_PROFILE_MAIN_422_12_INTRA, "main-422-12-intra"},
{GST_H265_PROFILE_MAIN_444_INTRA, "main-444-intra"},
{GST_H265_PROFILE_MAIN_444_10_INTRA, "main-444-10-intra"},
{GST_H265_PROFILE_MAIN_444_12_INTRA, "main-444-12-intra"},
{GST_H265_PROFILE_MAIN_444_16_INTRA, "main-444-16-intra"},
{GST_H265_PROFILE_MAIN_444_STILL_PICTURE, "main-444-still-picture"},
{GST_H265_PROFILE_MAIN_444_16_STILL_PICTURE, "main-444-16-still-picture"},
{GST_H265_PROFILE_MONOCHROME_10, "monochrome-10"},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444, "high-throughput-444"},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_10, "high-throughput-444-10"},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_14, "high-throughput-444-14"},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_16_INTRA,
"high-throughput-444-16-intra"},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN, "screen-extended-main"},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_10, "screen-extended-main-10"},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_444, "screen-extended-main-444"},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_444_10, "screen-extended-main-444-10"},
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444,
"screen-extended-high-throughput-444"},
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444_10,
"screen-extended-high-throughput-444-10"},
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444_14,
"screen-extended-high-throughput-444-14"},
{GST_H265_PROFILE_MULTIVIEW_MAIN, "multiview-main"},
{GST_H265_PROFILE_SCALABLE_MAIN, "scalable-main"},
{GST_H265_PROFILE_SCALABLE_MAIN_10, "scalable-main-10"},
{GST_H265_PROFILE_SCALABLE_MONOCHROME, "scalable-monochrome"},
{GST_H265_PROFILE_SCALABLE_MONOCHROME_12, "scalable-monochrome-12"},
{GST_H265_PROFILE_SCALABLE_MONOCHROME_16, "scalable-monochrome-16"},
{GST_H265_PROFILE_SCALABLE_MAIN_444, "scalable-main-444"},
{GST_H265_PROFILE_3D_MAIN, "3d-main"},
};
/****** Parsing functions *****/
static gboolean
gst_h265_parse_profile_tier_level (GstH265ProfileTierLevel * ptl,
NalReader * nr, guint8 maxNumSubLayersMinus1)
{
guint i, j;
GST_DEBUG ("parsing \"ProfileTierLevel parameters\"");
READ_UINT8 (nr, ptl->profile_space, 2);
READ_UINT8 (nr, ptl->tier_flag, 1);
READ_UINT8 (nr, ptl->profile_idc, 5);
for (j = 0; j < 32; j++)
READ_UINT8 (nr, ptl->profile_compatibility_flag[j], 1);
READ_UINT8 (nr, ptl->progressive_source_flag, 1);
READ_UINT8 (nr, ptl->interlaced_source_flag, 1);
READ_UINT8 (nr, ptl->non_packed_constraint_flag, 1);
READ_UINT8 (nr, ptl->frame_only_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_12bit_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_10bit_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_8bit_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_422chroma_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_420chroma_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_monochrome_constraint_flag, 1);
READ_UINT8 (nr, ptl->intra_constraint_flag, 1);
READ_UINT8 (nr, ptl->one_picture_only_constraint_flag, 1);
READ_UINT8 (nr, ptl->lower_bit_rate_constraint_flag, 1);
READ_UINT8 (nr, ptl->max_14bit_constraint_flag, 1);
/* skip the reserved zero bits */
if (!nal_reader_skip (nr, 34))
goto error;
READ_UINT8 (nr, ptl->level_idc, 8);
for (j = 0; j < maxNumSubLayersMinus1; j++) {
READ_UINT8 (nr, ptl->sub_layer_profile_present_flag[j], 1);
READ_UINT8 (nr, ptl->sub_layer_level_present_flag[j], 1);
}
if (maxNumSubLayersMinus1 > 0) {
for (i = maxNumSubLayersMinus1; i < 8; i++)
if (!nal_reader_skip (nr, 2))
goto error;
}
for (i = 0; i < maxNumSubLayersMinus1; i++) {
if (ptl->sub_layer_profile_present_flag[i]) {
READ_UINT8 (nr, ptl->sub_layer_profile_space[i], 2);
READ_UINT8 (nr, ptl->sub_layer_tier_flag[i], 1);
READ_UINT8 (nr, ptl->sub_layer_profile_idc[i], 5);
for (j = 0; j < 32; j++)
READ_UINT8 (nr, ptl->sub_layer_profile_compatibility_flag[i][j], 1);
READ_UINT8 (nr, ptl->sub_layer_progressive_source_flag[i], 1);
READ_UINT8 (nr, ptl->sub_layer_interlaced_source_flag[i], 1);
READ_UINT8 (nr, ptl->sub_layer_non_packed_constraint_flag[i], 1);
READ_UINT8 (nr, ptl->sub_layer_frame_only_constraint_flag[i], 1);
if (!nal_reader_skip (nr, 44))
goto error;
}
if (ptl->sub_layer_level_present_flag[i])
READ_UINT8 (nr, ptl->sub_layer_level_idc[i], 8);
}
return TRUE;
error:
GST_WARNING ("error parsing \"ProfileTierLevel Parameters\"");
return FALSE;
}
static gboolean
gst_h265_parse_sub_layer_hrd_parameters (GstH265SubLayerHRDParams * sub_hrd,
NalReader * nr, guint8 CpbCnt, guint8 sub_pic_hrd_params_present_flag)
{
guint i;
GST_DEBUG ("parsing \"SubLayer HRD Parameters\"");
for (i = 0; i <= CpbCnt; i++) {
READ_UE_MAX (nr, sub_hrd->bit_rate_value_minus1[i], G_MAXUINT32 - 1);
READ_UE_MAX (nr, sub_hrd->cpb_size_value_minus1[i], G_MAXUINT32 - 1);
if (sub_pic_hrd_params_present_flag) {
READ_UE_MAX (nr, sub_hrd->cpb_size_du_value_minus1[i], G_MAXUINT32 - 1);
READ_UE_MAX (nr, sub_hrd->bit_rate_du_value_minus1[i], G_MAXUINT32 - 1);
}
READ_UINT8 (nr, sub_hrd->cbr_flag[i], 1);
}
return TRUE;
error:
GST_WARNING ("error parsing \"SubLayerHRD Parameters \"");
return FALSE;
}
static gboolean
gst_h265_parse_hrd_parameters (GstH265HRDParams * hrd, NalReader * nr,
guint8 commonInfPresentFlag, guint8 maxNumSubLayersMinus1)
{
guint i;
GST_DEBUG ("parsing \"HRD Parameters\"");
/* set default values for fields that might not be present in the bitstream
and have valid defaults */
hrd->initial_cpb_removal_delay_length_minus1 = 23;
hrd->au_cpb_removal_delay_length_minus1 = 23;
hrd->dpb_output_delay_length_minus1 = 23;
if (commonInfPresentFlag) {
READ_UINT8 (nr, hrd->nal_hrd_parameters_present_flag, 1);
READ_UINT8 (nr, hrd->vcl_hrd_parameters_present_flag, 1);
if (hrd->nal_hrd_parameters_present_flag
|| hrd->vcl_hrd_parameters_present_flag) {
READ_UINT8 (nr, hrd->sub_pic_hrd_params_present_flag, 1);
if (hrd->sub_pic_hrd_params_present_flag) {
READ_UINT8 (nr, hrd->tick_divisor_minus2, 8);
READ_UINT8 (nr, hrd->du_cpb_removal_delay_increment_length_minus1, 5);
READ_UINT8 (nr, hrd->sub_pic_cpb_params_in_pic_timing_sei_flag, 1);
READ_UINT8 (nr, hrd->dpb_output_delay_du_length_minus1, 5);
}
READ_UINT8 (nr, hrd->bit_rate_scale, 4);
READ_UINT8 (nr, hrd->cpb_size_scale, 4);
if (hrd->sub_pic_hrd_params_present_flag)
READ_UINT8 (nr, hrd->cpb_size_du_scale, 4);
READ_UINT8 (nr, hrd->initial_cpb_removal_delay_length_minus1, 5);
READ_UINT8 (nr, hrd->au_cpb_removal_delay_length_minus1, 5);
READ_UINT8 (nr, hrd->dpb_output_delay_length_minus1, 5);
}
}
for (i = 0; i <= maxNumSubLayersMinus1; i++) {
READ_UINT8 (nr, hrd->fixed_pic_rate_general_flag[i], 1);
if (!hrd->fixed_pic_rate_general_flag[i]) {
READ_UINT8 (nr, hrd->fixed_pic_rate_within_cvs_flag[i], 1);
} else
hrd->fixed_pic_rate_within_cvs_flag[i] = 1;
if (hrd->fixed_pic_rate_within_cvs_flag[i]) {
READ_UE_MAX (nr, hrd->elemental_duration_in_tc_minus1[i], 2047);
} else
READ_UINT8 (nr, hrd->low_delay_hrd_flag[i], 1);
if (!hrd->low_delay_hrd_flag[i])
READ_UE_MAX (nr, hrd->cpb_cnt_minus1[i], 31);
if (hrd->nal_hrd_parameters_present_flag)
if (!gst_h265_parse_sub_layer_hrd_parameters (&hrd->sublayer_hrd_params
[i], nr, hrd->cpb_cnt_minus1[i],
hrd->sub_pic_hrd_params_present_flag))
goto error;
if (hrd->vcl_hrd_parameters_present_flag)
if (!gst_h265_parse_sub_layer_hrd_parameters (&hrd->sublayer_hrd_params
[i], nr, hrd->cpb_cnt_minus1[i],
hrd->sub_pic_hrd_params_present_flag))
goto error;
}
return TRUE;
error:
GST_WARNING ("error parsing \"HRD Parameters\"");
return FALSE;
}
static gboolean
gst_h265_parse_vui_parameters (GstH265SPS * sps, NalReader * nr)
{
GstH265VUIParams *vui = &sps->vui_params;
GST_DEBUG ("parsing \"VUI Parameters\"");
/* set default values for fields that might not be present in the bitstream
and have valid defaults */
vui->video_format = 5;
vui->colour_primaries = 2;
vui->transfer_characteristics = 2;
vui->matrix_coefficients = 2;
vui->motion_vectors_over_pic_boundaries_flag = 1;
vui->max_bytes_per_pic_denom = 2;
vui->max_bits_per_min_cu_denom = 1;
vui->log2_max_mv_length_horizontal = 15;
vui->log2_max_mv_length_vertical = 15;
if (sps && sps->profile_tier_level.progressive_source_flag
&& sps->profile_tier_level.interlaced_source_flag)
vui->frame_field_info_present_flag = 1;
READ_UINT8 (nr, vui->aspect_ratio_info_present_flag, 1);
if (vui->aspect_ratio_info_present_flag) {
READ_UINT8 (nr, vui->aspect_ratio_idc, 8);
if (vui->aspect_ratio_idc == EXTENDED_SAR) {
READ_UINT16 (nr, vui->sar_width, 16);
READ_UINT16 (nr, vui->sar_height, 16);
vui->par_n = vui->sar_width;
vui->par_d = vui->sar_height;
} else if (vui->aspect_ratio_idc <= 16) {
vui->par_n = aspect_ratios[vui->aspect_ratio_idc].par_n;
vui->par_d = aspect_ratios[vui->aspect_ratio_idc].par_d;
}
}
READ_UINT8 (nr, vui->overscan_info_present_flag, 1);
if (vui->overscan_info_present_flag)
READ_UINT8 (nr, vui->overscan_appropriate_flag, 1);
READ_UINT8 (nr, vui->video_signal_type_present_flag, 1);
if (vui->video_signal_type_present_flag) {
READ_UINT8 (nr, vui->video_format, 3);
READ_UINT8 (nr, vui->video_full_range_flag, 1);
READ_UINT8 (nr, vui->colour_description_present_flag, 1);
if (vui->colour_description_present_flag) {
READ_UINT8 (nr, vui->colour_primaries, 8);
READ_UINT8 (nr, vui->transfer_characteristics, 8);
READ_UINT8 (nr, vui->matrix_coefficients, 8);
}
}
READ_UINT8 (nr, vui->chroma_loc_info_present_flag, 1);
if (vui->chroma_loc_info_present_flag) {
READ_UE_MAX (nr, vui->chroma_sample_loc_type_top_field, 5);
READ_UE_MAX (nr, vui->chroma_sample_loc_type_bottom_field, 5);
}
READ_UINT8 (nr, vui->neutral_chroma_indication_flag, 1);
READ_UINT8 (nr, vui->field_seq_flag, 1);
READ_UINT8 (nr, vui->frame_field_info_present_flag, 1);
READ_UINT8 (nr, vui->default_display_window_flag, 1);
if (vui->default_display_window_flag) {
READ_UE (nr, vui->def_disp_win_left_offset);
READ_UE (nr, vui->def_disp_win_right_offset);
READ_UE (nr, vui->def_disp_win_top_offset);
READ_UE (nr, vui->def_disp_win_bottom_offset);
}
READ_UINT8 (nr, vui->timing_info_present_flag, 1);
if (vui->timing_info_present_flag) {
READ_UINT32 (nr, vui->num_units_in_tick, 32);
if (vui->num_units_in_tick == 0)
GST_WARNING ("num_units_in_tick = 0 detected in stream "
"(incompliant to H.265 E.2.1).");
READ_UINT32 (nr, vui->time_scale, 32);
if (vui->time_scale == 0)
GST_WARNING ("time_scale = 0 detected in stream "
"(incompliant to H.265 E.2.1).");
READ_UINT8 (nr, vui->poc_proportional_to_timing_flag, 1);
if (vui->poc_proportional_to_timing_flag)
READ_UE_MAX (nr, vui->num_ticks_poc_diff_one_minus1, G_MAXUINT32 - 1);
READ_UINT8 (nr, vui->hrd_parameters_present_flag, 1);
if (vui->hrd_parameters_present_flag)
if (!gst_h265_parse_hrd_parameters (&vui->hrd_params, nr, 1,
sps->max_sub_layers_minus1))
goto error;
}
READ_UINT8 (nr, vui->bitstream_restriction_flag, 1);
if (vui->bitstream_restriction_flag) {
READ_UINT8 (nr, vui->tiles_fixed_structure_flag, 1);
READ_UINT8 (nr, vui->motion_vectors_over_pic_boundaries_flag, 1);
READ_UINT8 (nr, vui->restricted_ref_pic_lists_flag, 1);
READ_UE_MAX (nr, vui->min_spatial_segmentation_idc, 4096);
READ_UE_MAX (nr, vui->max_bytes_per_pic_denom, 16);
READ_UE_MAX (nr, vui->max_bits_per_min_cu_denom, 16);
READ_UE_MAX (nr, vui->log2_max_mv_length_horizontal, 16);
READ_UE_MAX (nr, vui->log2_max_mv_length_vertical, 15);
}
vui->parsed = TRUE;
return TRUE;
error:
GST_WARNING ("error parsing \"VUI Parameters\"");
vui->parsed = FALSE;
return FALSE;
}
static gboolean
get_scaling_list_params (GstH265ScalingList * dest_scaling_list,
guint8 sizeId, guint8 matrixId, guint8 ** sl, guint8 * size,
gint16 ** scaling_list_dc_coef_minus8)
{
switch (sizeId) {
case GST_H265_QUANT_MATIX_4X4:
*sl = dest_scaling_list->scaling_lists_4x4[matrixId];
if (size)
*size = 16;
break;
case GST_H265_QUANT_MATIX_8X8:
*sl = dest_scaling_list->scaling_lists_8x8[matrixId];
if (size)
*size = 64;
break;
case GST_H265_QUANT_MATIX_16X16:
*sl = dest_scaling_list->scaling_lists_16x16[matrixId];
if (size)
*size = 64;
if (scaling_list_dc_coef_minus8)
*scaling_list_dc_coef_minus8 =
dest_scaling_list->scaling_list_dc_coef_minus8_16x16;
break;
case GST_H265_QUANT_MATIX_32X32:
*sl = dest_scaling_list->scaling_lists_32x32[matrixId];
if (size)
*size = 64;
if (scaling_list_dc_coef_minus8)
*scaling_list_dc_coef_minus8 =
dest_scaling_list->scaling_list_dc_coef_minus8_32x32;
break;
default:
return FALSE;
}
return TRUE;
}
static gboolean
get_default_scaling_lists (guint8 ** sl, guint8 sizeId, guint8 matrixId)
{
switch (sizeId) {
case GST_H265_QUANT_MATIX_4X4:
memcpy (*sl, default_scaling_list0, 16);
break;
case GST_H265_QUANT_MATIX_8X8:
case GST_H265_QUANT_MATIX_16X16:
if (matrixId <= 2)
memcpy (*sl, default_scaling_list1, 64);
else
memcpy (*sl, default_scaling_list2, 64);
break;
case GST_H265_QUANT_MATIX_32X32:
if (matrixId == 0)
memcpy (*sl, default_scaling_list1, 64);
else
memcpy (*sl, default_scaling_list2, 64);
break;
default:
return FALSE;
break;
}
return TRUE;
}
static gboolean
gst_h265_parser_parse_scaling_lists (NalReader * nr,
GstH265ScalingList * dest_scaling_list, gboolean use_default)
{
guint8 sizeId;
guint8 matrixId;
guint8 scaling_list_pred_mode_flag = 0;
guint8 scaling_list_pred_matrix_id_delta = 0;
guint8 size, i;
GST_DEBUG ("parsing scaling lists");
for (sizeId = 0; sizeId < 4; sizeId++) {
for (matrixId = 0; matrixId < ((sizeId == 3) ? 2 : 6); matrixId++) {
gint16 *scaling_list_dc_coef_minus8 = NULL;
guint8 *sl;
if (!get_scaling_list_params (dest_scaling_list, sizeId, matrixId, &sl,
&size, &scaling_list_dc_coef_minus8))
goto error;
/* use_default_scaling_matrices forcefully which means,
* sps_scaling_list_enabled_flag=TRUE,
* sps_scaling_list_data_present_flag=FALSE,
* pps_scaling_list_data_present_falg=FALSE */
if (use_default) {
if (!get_default_scaling_lists (&sl, sizeId, matrixId))
goto error;
/* Inferring the value of scaling_list_dc_coef_minus8 */
if (sizeId > 1)
scaling_list_dc_coef_minus8[matrixId] = 8;
} else {
READ_UINT8 (nr, scaling_list_pred_mode_flag, 1);
if (!scaling_list_pred_mode_flag) {
guint8 refMatrixId;
READ_UE_MAX (nr, scaling_list_pred_matrix_id_delta, matrixId);
if (!scaling_list_pred_matrix_id_delta) {
if (!get_default_scaling_lists (&sl, sizeId, matrixId))
goto error;
/* Inferring the value of scaling_list_dc_coef_minus8 */
if (sizeId > 1)
scaling_list_dc_coef_minus8[matrixId] = 8;
} else {
guint8 *temp_sl;
refMatrixId = matrixId - scaling_list_pred_matrix_id_delta; /* 7-30 */
if (!get_scaling_list_params (dest_scaling_list, sizeId,
refMatrixId, &temp_sl, NULL, NULL))
goto error;
for (i = 0; i < size; i++)
sl[i] = temp_sl[i]; /* 7-31 */
/* Inferring the value of scaling_list_dc_coef_minus8 */
if (sizeId > 1)
scaling_list_dc_coef_minus8[matrixId] =
scaling_list_dc_coef_minus8[refMatrixId];
}
} else {
guint8 nextCoef = 8;
gint8 scaling_list_delta_coef;
if (sizeId > 1) {
READ_SE_ALLOWED (nr, scaling_list_dc_coef_minus8[matrixId], -7,
247);
nextCoef = scaling_list_dc_coef_minus8[matrixId] + 8;
}
for (i = 0; i < size; i++) {
READ_SE_ALLOWED (nr, scaling_list_delta_coef, -128, 127);
nextCoef = (nextCoef + scaling_list_delta_coef) & 0xff;
sl[i] = nextCoef;
}
}
}
}
}
return TRUE;
error:
GST_WARNING ("error parsing scaling lists");
return FALSE;
}
static gboolean
gst_h265_parser_parse_short_term_ref_pic_sets (GstH265ShortTermRefPicSet *
stRPS, NalReader * nr, guint8 stRpsIdx, GstH265SPS * sps)
{
guint8 num_short_term_ref_pic_sets;
guint8 RefRpsIdx = 0;
gint16 deltaRps = 0;
guint8 use_delta_flag[16] = { 0 };
guint8 used_by_curr_pic_flag[16] = { 0 };
guint32 delta_poc_s0_minus1[16] = { 0 };
guint32 delta_poc_s1_minus1[16] = { 0 };
gint j, i = 0;
gint dPoc;
GST_DEBUG ("parsing \"ShortTermRefPicSetParameters\"");
/* set default values for fields that might not be present in the bitstream
and have valid defaults */
for (j = 0; j < 16; j++)
use_delta_flag[j] = 1;
num_short_term_ref_pic_sets = sps->num_short_term_ref_pic_sets;
if (stRpsIdx != 0)
READ_UINT8 (nr, stRPS->inter_ref_pic_set_prediction_flag, 1);
if (stRPS->inter_ref_pic_set_prediction_flag) {
GstH265ShortTermRefPicSet *RefRPS;
if (stRpsIdx == num_short_term_ref_pic_sets)
READ_UE_MAX (nr, stRPS->delta_idx_minus1, stRpsIdx - 1);
READ_UINT8 (nr, stRPS->delta_rps_sign, 1);
READ_UE_MAX (nr, stRPS->abs_delta_rps_minus1, 32767);
RefRpsIdx = stRpsIdx - stRPS->delta_idx_minus1 - 1; /* 7-45 */
deltaRps = (1 - 2 * stRPS->delta_rps_sign) * (stRPS->abs_delta_rps_minus1 + 1); /* 7-46 */
RefRPS = &sps->short_term_ref_pic_set[RefRpsIdx];
stRPS->NumDeltaPocsOfRefRpsIdx = RefRPS->NumDeltaPocs;
for (j = 0; j <= RefRPS->NumDeltaPocs; j++) {
READ_UINT8 (nr, used_by_curr_pic_flag[j], 1);
if (!used_by_curr_pic_flag[j])
READ_UINT8 (nr, use_delta_flag[j], 1);
}
/* 7-47: calculate NumNegativePics, DeltaPocS0 and UsedByCurrPicS0 */
i = 0;
for (j = (RefRPS->NumPositivePics - 1); j >= 0; j--) {
dPoc = RefRPS->DeltaPocS1[j] + deltaRps;
if (dPoc < 0 && use_delta_flag[RefRPS->NumNegativePics + j]) {
stRPS->DeltaPocS0[i] = dPoc;
stRPS->UsedByCurrPicS0[i++] =
used_by_curr_pic_flag[RefRPS->NumNegativePics + j];
}
}
if (deltaRps < 0 && use_delta_flag[RefRPS->NumDeltaPocs]) {
stRPS->DeltaPocS0[i] = deltaRps;
stRPS->UsedByCurrPicS0[i++] = used_by_curr_pic_flag[RefRPS->NumDeltaPocs];
}
for (j = 0; j < RefRPS->NumNegativePics; j++) {
dPoc = RefRPS->DeltaPocS0[j] + deltaRps;
if (dPoc < 0 && use_delta_flag[j]) {
stRPS->DeltaPocS0[i] = dPoc;
stRPS->UsedByCurrPicS0[i++] = used_by_curr_pic_flag[j];
}
}
stRPS->NumNegativePics = i;
/* 7-48: calculate NumPositivePics, DeltaPocS1 and UsedByCurrPicS1 */
i = 0;
for (j = (RefRPS->NumNegativePics - 1); j >= 0; j--) {
dPoc = RefRPS->DeltaPocS0[j] + deltaRps;
if (dPoc > 0 && use_delta_flag[j]) {
stRPS->DeltaPocS1[i] = dPoc;
stRPS->UsedByCurrPicS1[i++] = used_by_curr_pic_flag[j];
}
}
if (deltaRps > 0 && use_delta_flag[RefRPS->NumDeltaPocs]) {
stRPS->DeltaPocS1[i] = deltaRps;
stRPS->UsedByCurrPicS1[i++] = used_by_curr_pic_flag[RefRPS->NumDeltaPocs];
}
for (j = 0; j < RefRPS->NumPositivePics; j++) {
dPoc = RefRPS->DeltaPocS1[j] + deltaRps;
if (dPoc > 0 && use_delta_flag[RefRPS->NumNegativePics + j]) {
stRPS->DeltaPocS1[i] = dPoc;
stRPS->UsedByCurrPicS1[i++] =
used_by_curr_pic_flag[RefRPS->NumNegativePics + j];
}
}
stRPS->NumPositivePics = i;
} else {
/* 7-49 */
READ_UE_MAX (nr, stRPS->NumNegativePics,
sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1]);
/* 7-50 */
READ_UE_MAX (nr, stRPS->NumPositivePics,
(sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1] -
stRPS->NumNegativePics));
for (i = 0; i < stRPS->NumNegativePics; i++) {
READ_UE_MAX (nr, delta_poc_s0_minus1[i], 32767);
/* 7-51 */
READ_UINT8 (nr, stRPS->UsedByCurrPicS0[i], 1);
if (i == 0) {
/* 7-53 */
stRPS->DeltaPocS0[i] = -(delta_poc_s0_minus1[i] + 1);
} else {
/* 7-55 */
stRPS->DeltaPocS0[i] =
stRPS->DeltaPocS0[i - 1] - (delta_poc_s0_minus1[i] + 1);
}
}
for (j = 0; j < stRPS->NumPositivePics; j++) {
READ_UE_MAX (nr, delta_poc_s1_minus1[j], 32767);
/* 7-52 */
READ_UINT8 (nr, stRPS->UsedByCurrPicS1[j], 1);
if (j == 0) {
/* 7-54 */
stRPS->DeltaPocS1[j] = delta_poc_s1_minus1[j] + 1;
} else {
/* 7-56 */
stRPS->DeltaPocS1[j] =
stRPS->DeltaPocS1[j - 1] + (delta_poc_s1_minus1[j] + 1);
}
}
}
/* 7-57 */
stRPS->NumDeltaPocs = stRPS->NumPositivePics + stRPS->NumNegativePics;
return TRUE;
error:
GST_WARNING ("error parsing \"ShortTermRefPicSet Parameters\"");
return FALSE;
}
static gboolean
gst_h265_slice_parse_ref_pic_list_modification (GstH265SliceHdr * slice,
NalReader * nr, gint NumPocTotalCurr)
{
guint i;
GstH265RefPicListModification *rpl_mod = &slice->ref_pic_list_modification;
const guint n = ceil_log2 (NumPocTotalCurr);
READ_UINT8 (nr, rpl_mod->ref_pic_list_modification_flag_l0, 1);
if (rpl_mod->ref_pic_list_modification_flag_l0) {
for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++) {
READ_UINT32 (nr, rpl_mod->list_entry_l0[i], n);
CHECK_ALLOWED_MAX (rpl_mod->list_entry_l0[i], (NumPocTotalCurr - 1));
}
}
if (GST_H265_IS_B_SLICE (slice)) {
READ_UINT8 (nr, rpl_mod->ref_pic_list_modification_flag_l1, 1);
if (rpl_mod->ref_pic_list_modification_flag_l1)
for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++) {
READ_UINT32 (nr, rpl_mod->list_entry_l1[i], n);
CHECK_ALLOWED_MAX (rpl_mod->list_entry_l1[i], (NumPocTotalCurr - 1));
}
}
return TRUE;
error:
GST_WARNING ("error parsing \"Reference picture list modifications\"");
return FALSE;
}
static gboolean
gst_h265_slice_parse_pred_weight_table (GstH265SliceHdr * slice, NalReader * nr)
{
GstH265PredWeightTable *p;
gint i, j;
GstH265PPS *pps = slice->pps;
GstH265SPS *sps = pps->sps;
GST_DEBUG ("parsing \"Prediction weight table\"");
p = &slice->pred_weight_table;
READ_UE_MAX (nr, p->luma_log2_weight_denom, 7);
if (sps->chroma_format_idc != 0) {
READ_SE_ALLOWED (nr, p->delta_chroma_log2_weight_denom,
(0 - p->luma_log2_weight_denom), (7 - p->luma_log2_weight_denom));
}
for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++)
READ_UINT8 (nr, p->luma_weight_l0_flag[i], 1);
if (sps->chroma_format_idc != 0)
for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++)
READ_UINT8 (nr, p->chroma_weight_l0_flag[i], 1);
for (i = 0; i <= slice->num_ref_idx_l0_active_minus1; i++) {
if (p->luma_weight_l0_flag[i]) {
READ_SE_ALLOWED (nr, p->delta_luma_weight_l0[i], -128, 127);
READ_SE_ALLOWED (nr, p->luma_offset_l0[i], -128, 127);
}
if (p->chroma_weight_l0_flag[i])
for (j = 0; j < 2; j++) {
READ_SE_ALLOWED (nr, p->delta_chroma_weight_l0[i][j], -128, 127);
READ_SE_ALLOWED (nr, p->delta_chroma_offset_l0[i][j], -512, 511);
}
}
if (GST_H265_IS_B_SLICE (slice)) {
for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++)
READ_UINT8 (nr, p->luma_weight_l1_flag[i], 1);
if (sps->chroma_format_idc != 0)
for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++)
READ_UINT8 (nr, p->chroma_weight_l1_flag[i], 1);
for (i = 0; i <= slice->num_ref_idx_l1_active_minus1; i++) {
if (p->luma_weight_l1_flag[i]) {
READ_SE_ALLOWED (nr, p->delta_luma_weight_l1[i], -128, 127);
READ_SE_ALLOWED (nr, p->luma_offset_l1[i], -128, 127);
}
if (p->chroma_weight_l1_flag[i])
for (j = 0; j < 2; j++) {
READ_SE_ALLOWED (nr, p->delta_chroma_weight_l1[i][j], -128, 127);
READ_SE_ALLOWED (nr, p->delta_chroma_offset_l1[i][j], -512, 511);
}
}
}
return TRUE;
error:
GST_WARNING ("error parsing \"Prediction weight table\"");
return FALSE;
}
static GstH265ParserResult
gst_h265_parser_parse_buffering_period (GstH265Parser * parser,
GstH265BufferingPeriod * per, NalReader * nr)
{
GstH265SPS *sps;
guint8 sps_id;
guint i;
guint n;
GST_DEBUG ("parsing \"Buffering period\"");
READ_UE_MAX (nr, sps_id, GST_H265_MAX_SPS_COUNT - 1);
sps = gst_h265_parser_get_sps (parser, sps_id);
if (!sps) {
GST_WARNING ("couldn't find associated sequence parameter set with id: %d",
sps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
per->sps = sps;
if (sps->vui_parameters_present_flag) {
GstH265VUIParams *vui = &sps->vui_params;
GstH265HRDParams *hrd = &vui->hrd_params;
if (!hrd->sub_pic_hrd_params_present_flag)
READ_UINT8 (nr, per->irap_cpb_params_present_flag, 1);
if (per->irap_cpb_params_present_flag) {
READ_UINT8 (nr, per->cpb_delay_offset,
(hrd->au_cpb_removal_delay_length_minus1 + 1));
READ_UINT8 (nr, per->dpb_delay_offset,
(hrd->dpb_output_delay_length_minus1 + 1));
}
n = hrd->initial_cpb_removal_delay_length_minus1 + 1;
READ_UINT8 (nr, per->concatenation_flag, 1);
READ_UINT8 (nr, per->au_cpb_removal_delay_delta_minus1,
(hrd->au_cpb_removal_delay_length_minus1 + 1));
if (hrd->nal_hrd_parameters_present_flag) {
for (i = 0; i <= hrd->cpb_cnt_minus1[i]; i++) {
READ_UINT8 (nr, per->nal_initial_cpb_removal_delay[i], n);
READ_UINT8 (nr, per->nal_initial_cpb_removal_offset[i], n);
if (hrd->sub_pic_hrd_params_present_flag
|| per->irap_cpb_params_present_flag) {
READ_UINT8 (nr, per->nal_initial_alt_cpb_removal_delay[i], n);
READ_UINT8 (nr, per->nal_initial_alt_cpb_removal_offset[i], n);
}
}
}
if (hrd->vcl_hrd_parameters_present_flag) {
for (i = 0; i <= hrd->cpb_cnt_minus1[i]; i++) {
READ_UINT8 (nr, per->vcl_initial_cpb_removal_delay[i], n);
READ_UINT8 (nr, per->vcl_initial_cpb_removal_offset[i], n);
if (hrd->sub_pic_hrd_params_present_flag
|| per->irap_cpb_params_present_flag) {
READ_UINT8 (nr, per->vcl_initial_alt_cpb_removal_delay[i], n);
READ_UINT8 (nr, per->vcl_initial_alt_cpb_removal_offset[i], n);
}
}
}
}
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Buffering period\"");
return GST_H265_PARSER_ERROR;
}
static GstH265ParserResult
gst_h265_parser_parse_pic_timing (GstH265Parser * parser,
GstH265PicTiming * tim, NalReader * nr)
{
GstH265ProfileTierLevel *profile_tier_level;
guint i;
GST_DEBUG ("parsing \"Picture timing\"");
if (!parser->last_sps || !parser->last_sps->valid) {
GST_WARNING ("didn't get the associated sequence parameter set for the "
"current access unit");
goto error;
}
profile_tier_level = &parser->last_sps->profile_tier_level;
/* set default values */
if (!profile_tier_level->progressive_source_flag
&& profile_tier_level->interlaced_source_flag)
tim->source_scan_type = 0;
else if (profile_tier_level->progressive_source_flag
&& !profile_tier_level->interlaced_source_flag)
tim->source_scan_type = 1;
else
tim->source_scan_type = 2;
if (parser->last_sps->vui_parameters_present_flag) {
GstH265VUIParams *vui = &parser->last_sps->vui_params;
if (vui->frame_field_info_present_flag) {
READ_UINT8 (nr, tim->pic_struct, 4);
READ_UINT8 (nr, tim->source_scan_type, 2);
READ_UINT8 (nr, tim->duplicate_flag, 1);
} else {
/* set default values */
tim->pic_struct = 0;
}
if (vui->hrd_parameters_present_flag) {
GstH265HRDParams *hrd = &vui->hrd_params;
READ_UINT8 (nr, tim->au_cpb_removal_delay_minus1,
(hrd->au_cpb_removal_delay_length_minus1 + 1));
READ_UINT8 (nr, tim->pic_dpb_output_delay,
(hrd->dpb_output_delay_length_minus1 + 1));
if (hrd->sub_pic_hrd_params_present_flag)
READ_UINT8 (nr, tim->pic_dpb_output_du_delay,
(hrd->dpb_output_delay_du_length_minus1 + 1));
if (hrd->sub_pic_hrd_params_present_flag
&& hrd->sub_pic_cpb_params_in_pic_timing_sei_flag) {
READ_UE (nr, tim->num_decoding_units_minus1);
READ_UINT8 (nr, tim->du_common_cpb_removal_delay_flag, 1);
if (tim->du_common_cpb_removal_delay_flag)
READ_UINT8 (nr, tim->du_common_cpb_removal_delay_increment_minus1,
(hrd->du_cpb_removal_delay_increment_length_minus1 + 1));
tim->num_nalus_in_du_minus1 =
g_new0 (guint32, (tim->num_decoding_units_minus1 + 1));
tim->du_cpb_removal_delay_increment_minus1 =
g_new0 (guint8, (tim->num_decoding_units_minus1 + 1));
for (i = 0; i <= tim->num_decoding_units_minus1; i++) {
READ_UE (nr, tim->num_nalus_in_du_minus1[i]);
if (!tim->du_common_cpb_removal_delay_flag
&& (i < tim->num_decoding_units_minus1))
READ_UINT8 (nr, tim->du_cpb_removal_delay_increment_minus1[i],
(hrd->du_cpb_removal_delay_increment_length_minus1 + 1));
}
}
}
}
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Picture timing\"");
return GST_H265_PARSER_ERROR;
}
static GstH265ParserResult
gst_h265_parser_parse_recovery_point (GstH265Parser * parser,
GstH265RecoveryPoint * rp, NalReader * nr)
{
GstH265SPS *const sps = parser->last_sps;
gint32 max_pic_order_cnt_lsb;
GST_DEBUG ("parsing \"Recovery point\"");
if (!sps || !sps->valid) {
GST_WARNING ("didn't get the associated sequence parameter set for the "
"current access unit");
goto error;
}
max_pic_order_cnt_lsb = pow (2, (sps->log2_max_pic_order_cnt_lsb_minus4 + 4));
READ_SE_ALLOWED (nr, rp->recovery_poc_cnt, -max_pic_order_cnt_lsb / 2,
max_pic_order_cnt_lsb - 1);
READ_UINT8 (nr, rp->exact_match_flag, 1);
READ_UINT8 (nr, rp->broken_link_flag, 1);
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Recovery point\"");
return GST_H265_PARSER_ERROR;
}
static GstH265ParserResult
gst_h265_parser_parse_registered_user_data (GstH265Parser * parser,
GstH265RegisteredUserData * rud, NalReader * nr, guint payload_size)
{
guint8 *data = NULL;
guint i;
rud->data = NULL;
rud->size = 0;
if (payload_size < 2) {
GST_WARNING ("Too small payload size %d", payload_size);
return GST_H265_PARSER_BROKEN_DATA;
}
READ_UINT8 (nr, rud->country_code, 8);
--payload_size;
if (rud->country_code == 0xFF) {
READ_UINT8 (nr, rud->country_code_extension, 8);
--payload_size;
} else {
rud->country_code_extension = 0;
}
if (payload_size < 1) {
GST_WARNING ("No more remaining payload data to store");
return GST_H265_PARSER_BROKEN_DATA;
}
data = g_malloc (payload_size);
for (i = 0; i < payload_size; ++i) {
READ_UINT8 (nr, data[i], 8);
}
GST_MEMDUMP ("SEI user data", data, payload_size);
rud->data = data;
rud->size = payload_size;
return GST_H265_PARSER_OK;
error:
{
GST_WARNING ("error parsing \"Registered User Data\"");
g_free (data);
return GST_H265_PARSER_ERROR;
}
}
static GstH265ParserResult
gst_h265_parser_parse_user_data_unregistered (GstH265Parser * parser,
GstH265UserDataUnregistered * urud, NalReader * nr, guint payload_size)
{
guint8 *data = NULL;
gint i;
if (payload_size < 16) {
GST_WARNING ("Too small payload size %d", payload_size);
return GST_H265_PARSER_BROKEN_DATA;
}
for (int i = 0; i < 16; i++) {
READ_UINT8 (nr, urud->uuid[i], 8);
}
payload_size -= 16;
urud->size = payload_size;
data = g_malloc0 (payload_size);
for (i = 0; i < payload_size; ++i) {
READ_UINT8 (nr, data[i], 8);
}
if (payload_size < 1) {
GST_WARNING ("No more remaining payload data to store");
g_clear_pointer (&data, g_free);
return GST_H265_PARSER_BROKEN_DATA;
}
urud->data = data;
GST_MEMDUMP ("SEI user data unregistered", data, payload_size);
return GST_H265_PARSER_OK;
error:
{
GST_WARNING ("error parsing \"User Data Unregistered\"");
g_clear_pointer (&data, g_free);
return GST_H265_PARSER_ERROR;
}
}
static GstH265ParserResult
gst_h265_parser_parse_time_code (GstH265Parser * parser,
GstH265TimeCode * tc, NalReader * nr)
{
guint i;
GST_DEBUG ("parsing \"Time code\"");
READ_UINT8 (nr, tc->num_clock_ts, 2);
for (i = 0; i < tc->num_clock_ts; i++) {
READ_UINT8 (nr, tc->clock_timestamp_flag[i], 1);
if (tc->clock_timestamp_flag[i]) {
READ_UINT8 (nr, tc->units_field_based_flag[i], 1);
READ_UINT8 (nr, tc->counting_type[i], 5);
READ_UINT8 (nr, tc->full_timestamp_flag[i], 1);
READ_UINT8 (nr, tc->discontinuity_flag[i], 1);
READ_UINT8 (nr, tc->cnt_dropped_flag[i], 1);
READ_UINT16 (nr, tc->n_frames[i], 9);
if (tc->full_timestamp_flag[i]) {
tc->seconds_flag[i] = TRUE;
READ_UINT8 (nr, tc->seconds_value[i], 6);
tc->minutes_flag[i] = TRUE;
READ_UINT8 (nr, tc->minutes_value[i], 6);
tc->hours_flag[i] = TRUE;
READ_UINT8 (nr, tc->hours_value[i], 5);
} else {
READ_UINT8 (nr, tc->seconds_flag[i], 1);
if (tc->seconds_flag[i]) {
READ_UINT8 (nr, tc->seconds_value[i], 6);
READ_UINT8 (nr, tc->minutes_flag[i], 1);
if (tc->minutes_flag[i]) {
READ_UINT8 (nr, tc->minutes_value[i], 6);
READ_UINT8 (nr, tc->hours_flag[i], 1);
if (tc->hours_flag[i]) {
READ_UINT8 (nr, tc->hours_value[i], 5);
}
}
}
}
}
READ_UINT8 (nr, tc->time_offset_length[i], 5);
if (tc->time_offset_length[i] > 0)
READ_UINT32 (nr, tc->time_offset_value[i], tc->time_offset_length[i]);
}
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Time code\"");
return GST_H265_PARSER_ERROR;
}
static GstH265ParserResult
gst_h265_parser_parse_mastering_display_colour_volume (GstH265Parser * parser,
GstH265MasteringDisplayColourVolume * mdcv, NalReader * nr)
{
guint i;
GST_DEBUG ("parsing \"Mastering display colour volume\"");
for (i = 0; i < 3; i++) {
READ_UINT16 (nr, mdcv->display_primaries_x[i], 16);
READ_UINT16 (nr, mdcv->display_primaries_y[i], 16);
}
READ_UINT16 (nr, mdcv->white_point_x, 16);
READ_UINT16 (nr, mdcv->white_point_y, 16);
READ_UINT32 (nr, mdcv->max_display_mastering_luminance, 32);
READ_UINT32 (nr, mdcv->min_display_mastering_luminance, 32);
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Mastering display colour volume\"");
return GST_H265_PARSER_ERROR;
}
static GstH265ParserResult
gst_h265_parser_parse_content_light_level_info (GstH265Parser * parser,
GstH265ContentLightLevel * cll, NalReader * nr)
{
GST_DEBUG ("parsing \"Content light level\"");
READ_UINT16 (nr, cll->max_content_light_level, 16);
READ_UINT16 (nr, cll->max_pic_average_light_level, 16);
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Content light level\"");
return GST_H265_PARSER_ERROR;
}
/******** API *************/
/**
* gst_h265_parser_new:
*
* Creates a new #GstH265Parser. It should be freed with
* gst_h265_parser_free after use.
*
* Returns: a new #GstH265Parser
*/
GstH265Parser *
gst_h265_parser_new (void)
{
GstH265Parser *parser;
parser = g_new0 (GstH265Parser, 1);
return parser;
}
/**
* gst_h265_parser_free:
* @parser: the #GstH265Parser to free
*
* Frees @parser and sets it to %NULL
*/
void
gst_h265_parser_free (GstH265Parser * parser)
{
g_free (parser);
parser = NULL;
}
/**
* gst_h265_parser_identify_nalu_unchecked:
* @parser: a #GstH265Parser
* @data: The data to parse
* @offset: the offset from which to parse @data
* @size: the size of @data
* @nalu: The #GstH265NalUnit where to store parsed nal headers
*
* Parses @data and fills @nalu from the next nalu data from @data.
*
* This differs from @gst_h265_parser_identify_nalu in that it doesn't
* check whether the packet is complete or not.
*
* Note: Only use this function if you already know the provided @data
* is a complete NALU, else use @gst_h265_parser_identify_nalu.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_identify_nalu_unchecked (GstH265Parser * parser,
const guint8 * data, guint offset, gsize size, GstH265NalUnit * nalu)
{
gint off1;
memset (nalu, 0, sizeof (*nalu));
if (size < offset + 4) {
GST_DEBUG ("Can't parse, buffer has too small size %" G_GSIZE_FORMAT
", offset %u", size, offset);
return GST_H265_PARSER_ERROR;
}
off1 = scan_for_start_codes (data + offset, size - offset);
if (off1 < 0) {
GST_DEBUG ("No start code prefix in this buffer");
return GST_H265_PARSER_NO_NAL;
}
nalu->sc_offset = offset + off1;
/* The scanner ensures one byte passed the start code but to
* identify an HEVC NAL, we need 2. */
if (size - nalu->sc_offset - 3 < 2) {
GST_DEBUG ("Not enough bytes after start code to identify");
return GST_H265_PARSER_NO_NAL;
}
/* sc might have 2 or 3 0-bytes */
if (nalu->sc_offset > 0 && data[nalu->sc_offset - 1] == 00)
nalu->sc_offset--;
nalu->offset = offset + off1 + 3;
nalu->data = (guint8 *) data;
nalu->size = size - nalu->offset;
if (!gst_h265_parse_nalu_header (nalu)) {
GST_WARNING ("error parsing \"NAL unit header\"");
nalu->size = 0;
return GST_H265_PARSER_BROKEN_DATA;
}
nalu->valid = TRUE;
if (nalu->type == GST_H265_NAL_EOS || nalu->type == GST_H265_NAL_EOB) {
GST_DEBUG ("end-of-seq or end-of-stream nal found");
nalu->size = 2;
return GST_H265_PARSER_OK;
}
return GST_H265_PARSER_OK;
}
/**
* gst_h265_parser_identify_nalu:
* @parser: a #GstH265Parser
* @data: The data to parse
* @offset: the offset from which to parse @data
* @size: the size of @data
* @nalu: The #GstH265NalUnit where to store parsed nal headers
*
* Parses @data and fills @nalu from the next nalu data from @data
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_identify_nalu (GstH265Parser * parser,
const guint8 * data, guint offset, gsize size, GstH265NalUnit * nalu)
{
GstH265ParserResult res;
gint off2;
res =
gst_h265_parser_identify_nalu_unchecked (parser, data, offset, size,
nalu);
if (res != GST_H265_PARSER_OK)
goto beach;
/* The two NALs are exactly 2 bytes size and are placed at the end of an AU,
* there is no need to wait for the following */
if (nalu->type == GST_H265_NAL_EOS || nalu->type == GST_H265_NAL_EOB)
goto beach;
off2 = scan_for_start_codes (data + nalu->offset, size - nalu->offset);
if (off2 < 0) {
GST_DEBUG ("Nal start %d, No end found", nalu->offset);
return GST_H265_PARSER_NO_NAL_END;
}
/* Callers assumes that enough data will available to identify the next NAL,
* but scan_for_start_codes() only ensure 1 extra byte is available. Ensure
* we have the required two header bytes (3 bytes start code and 2 byte
* header). */
if (size - (nalu->offset + off2) < 5) {
GST_DEBUG ("Not enough bytes identify the next NAL.");
return GST_H265_PARSER_NO_NAL_END;
}
/* Mini performance improvement:
* We could have a way to store how many 0s were skipped to avoid
* parsing them again on the next NAL */
while (off2 > 0 && data[nalu->offset + off2 - 1] == 00)
off2--;
nalu->size = off2;
if (nalu->size < 3)
return GST_H265_PARSER_BROKEN_DATA;
GST_DEBUG ("Complete nal found. Off: %d, Size: %d", nalu->offset, nalu->size);
beach:
return res;
}
/**
* gst_h265_parser_identify_nalu_hevc:
* @parser: a #GstH265Parser
* @data: The data to parse, must be the beging of the Nal unit
* @offset: the offset from which to parse @data
* @size: the size of @data
* @nal_length_size: the size in bytes of the HEVC nal length prefix.
* @nalu: The #GstH265NalUnit where to store parsed nal headers
*
* Parses @data and sets @nalu.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_identify_nalu_hevc (GstH265Parser * parser,
const guint8 * data, guint offset, gsize size, guint8 nal_length_size,
GstH265NalUnit * nalu)
{
GstBitReader br;
memset (nalu, 0, sizeof (*nalu));
/* Would overflow guint below otherwise: the callers needs to ensure that
* this never happens */
if (offset > G_MAXUINT32 - nal_length_size) {
GST_WARNING ("offset + nal_length_size overflow");
nalu->size = 0;
return GST_H265_PARSER_BROKEN_DATA;
}
if (size < offset + nal_length_size) {
GST_DEBUG ("Can't parse, buffer has too small size %" G_GSIZE_FORMAT
", offset %u", size, offset);
return GST_H265_PARSER_ERROR;
}
size = size - offset;
gst_bit_reader_init (&br, data + offset, size);
nalu->size = gst_bit_reader_get_bits_uint32_unchecked (&br,
nal_length_size * 8);
nalu->sc_offset = offset;
nalu->offset = offset + nal_length_size;
if (nalu->size > G_MAXUINT32 - nal_length_size) {
GST_WARNING ("NALU size + nal_length_size overflow");
nalu->size = 0;
return GST_H265_PARSER_BROKEN_DATA;
}
if (size < (gsize) nalu->size + nal_length_size) {
nalu->size = 0;
return GST_H265_PARSER_NO_NAL_END;
}
nalu->data = (guint8 *) data;
if (!gst_h265_parse_nalu_header (nalu)) {
GST_WARNING ("error parsing \"NAL unit header\"");
nalu->size = 0;
return GST_H265_PARSER_BROKEN_DATA;
}
if (nalu->size < 2)
return GST_H265_PARSER_BROKEN_DATA;
nalu->valid = TRUE;
return GST_H265_PARSER_OK;
}
/**
* gst_h265_parser_identify_and_split_nalu_hevc:
* @parser: a #GstH265Parser
* @data: The data to parse, must be the beging of the Nal unit
* @offset: the offset from which to parse @data
* @size: the size of @data
* @nal_length_size: the size in bytes of the HEVC nal length prefix.
* @nalus: a caller allocated GArray of #GstH265NalUnit where to store parsed nal headers
* @consumed: the size of consumed bytes
*
* Parses @data for packetized (e.g., hvc1/hev1) bitstream and
* sets @nalus. In addition to nal identifying process,
* this method scans start-code prefix to split malformed packet into
* actual nal chunks.
*
* Returns: a #GstH265ParserResult
*
* Since: 1.22
*/
GstH265ParserResult
gst_h265_parser_identify_and_split_nalu_hevc (GstH265Parser * parser,
const guint8 * data, guint offset, gsize size, guint8 nal_length_size,
GArray * nalus, gsize * consumed)
{
GstBitReader br;
guint nalu_size;
guint remaining;
guint off;
guint sc_size;
g_return_val_if_fail (data != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (nalus != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (nal_length_size > 0 && nal_length_size < 5,
GST_H265_PARSER_ERROR);
g_array_set_size (nalus, 0);
if (consumed)
*consumed = 0;
/* Would overflow guint below otherwise: the callers needs to ensure that
* this never happens */
if (offset > G_MAXUINT32 - nal_length_size) {
GST_WARNING ("offset + nal_length_size overflow");
return GST_H265_PARSER_BROKEN_DATA;
}
if (size < offset + nal_length_size) {
GST_DEBUG ("Can't parse, buffer has too small size %" G_GSIZE_FORMAT
", offset %u", size, offset);
return GST_H265_PARSER_ERROR;
}
/* Read nal unit size and unwrap the size field */
gst_bit_reader_init (&br, data + offset, size - offset);
nalu_size = gst_bit_reader_get_bits_uint32_unchecked (&br,
nal_length_size * 8);
if (nalu_size < 2) {
GST_WARNING ("too small nal size %d", nalu_size);
return GST_H265_PARSER_BROKEN_DATA;
}
if (size < (gsize) nalu_size + nal_length_size) {
GST_WARNING ("larger nalu size %d than data size %" G_GSIZE_FORMAT,
nalu_size + nal_length_size, size);
return GST_H265_PARSER_BROKEN_DATA;
}
if (consumed)
*consumed = nalu_size + nal_length_size;
off = offset + nal_length_size;
remaining = nalu_size;
sc_size = nal_length_size;
/* Drop trailing start-code since it will not be scanned */
if (remaining >= 3) {
if (data[off + remaining - 1] == 0x01 && data[off + remaining - 2] == 0x00
&& data[off + remaining - 3] == 0x00) {
remaining -= 3;
/* 4 bytes start-code */
if (remaining > 0 && data[off + remaining - 1] == 0x00)
remaining--;
}
}
/* Looping to split malformed nal units. nal-length field was dropped above
* so expected bitstream structure are:
*
* <complete nalu>
* | nalu |
* sc scan result will be -1 and handled in CONDITION-A
*
* <nalu with startcode prefix>
* | SC | nalu |
* Hit CONDITION-C first then terminated in CONDITION-A
*
* <first nal has no startcode but others have>
* | nalu | SC | nalu | ...
* CONDITION-B handles those cases
*/
do {
GstH265NalUnit nalu;
gint sc_offset = -1;
guint skip_size = 0;
memset (&nalu, 0, sizeof (GstH265NalUnit));
/* startcode 3 bytes + minimum nal size 2 */
if (remaining >= 5)
sc_offset = scan_for_start_codes (data + off, remaining);
if (sc_offset < 0) {
if (remaining >= 2) {
/* CONDITION-A */
/* Last chunk */
nalu.size = remaining;
nalu.sc_offset = off - sc_size;
nalu.offset = off;
nalu.data = (guint8 *) data;
nalu.valid = TRUE;
gst_h265_parse_nalu_header (&nalu);
g_array_append_val (nalus, nalu);
}
break;
} else if ((sc_offset == 2 && data[off + sc_offset - 1] != 0)
|| sc_offset > 2) {
/* CONDITION-B */
/* Found trailing startcode prefix */
nalu.size = sc_offset;
if (data[off + sc_offset - 1] == 0) {
/* 4 bytes start code */
nalu.size--;
}
nalu.sc_offset = off - sc_size;
nalu.offset = off;
nalu.data = (guint8 *) data;
nalu.valid = TRUE;
gst_h265_parse_nalu_header (&nalu);
g_array_append_val (nalus, nalu);
} else {
/* CONDITION-C */
/* startcode located at beginning of this chunk without actual nal data.
* skip this start code */
}
skip_size = sc_offset + 3;
if (skip_size >= remaining)
break;
/* no more nal-length bytes but 3bytes startcode */
sc_size = 3;
if (sc_offset > 0 && data[off + sc_offset - 1] == 0)
sc_size++;
remaining -= skip_size;
off += skip_size;
} while (remaining >= 2);
if (nalus->len > 0)
return GST_H265_PARSER_OK;
GST_WARNING ("No nal found");
return GST_H265_PARSER_BROKEN_DATA;
}
/**
* gst_h265_parser_parse_nal:
* @parser: a #GstH265Parser
* @nalu: The #GstH265NalUnit to parse
*
* This function should be called in the case one doesn't need to
* parse a specific structure. It is necessary to do so to make
* sure @parser is up to date.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_nal (GstH265Parser * parser, GstH265NalUnit * nalu)
{
GstH265VPS vps;
GstH265SPS sps;
GstH265PPS pps;
switch (nalu->type) {
case GST_H265_NAL_VPS:
return gst_h265_parser_parse_vps (parser, nalu, &vps);
break;
case GST_H265_NAL_SPS:
return gst_h265_parser_parse_sps (parser, nalu, &sps, FALSE);
break;
case GST_H265_NAL_PPS:
return gst_h265_parser_parse_pps (parser, nalu, &pps);
}
return GST_H265_PARSER_OK;
}
/**
* gst_h265_parser_parse_vps:
* @parser: a #GstH265Parser
* @nalu: The #GST_H265_NAL_VPS #GstH265NalUnit to parse
* @vps: The #GstH265VPS to fill.
*
* Parses @data, and fills the @vps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_vps (GstH265Parser * parser, GstH265NalUnit * nalu,
GstH265VPS * vps)
{
GstH265ParserResult res = gst_h265_parse_vps (nalu, vps);
if (res == GST_H265_PARSER_OK) {
GST_DEBUG ("adding video parameter set with id: %d to array", vps->id);
parser->vps[vps->id] = *vps;
parser->last_vps = &parser->vps[vps->id];
}
return res;
}
/**
* gst_h265_parse_vps:
* @nalu: The #GST_H265_NAL_VPS #GstH265NalUnit to parse
* @sps: The #GstH265VPS to fill.
*
* Parses @data, and fills the @vps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parse_vps (GstH265NalUnit * nalu, GstH265VPS * vps)
{
NalReader nr;
guint i, j;
GST_DEBUG ("parsing VPS");
nal_reader_init (&nr, nalu->data + nalu->offset + nalu->header_bytes,
nalu->size - nalu->header_bytes);
memset (vps, 0, sizeof (*vps));
vps->cprms_present_flag = 1;
READ_UINT8 (&nr, vps->id, 4);
READ_UINT8 (&nr, vps->base_layer_internal_flag, 1);
READ_UINT8 (&nr, vps->base_layer_available_flag, 1);
READ_UINT8 (&nr, vps->max_layers_minus1, 6);
READ_UINT8 (&nr, vps->max_sub_layers_minus1, 3);
READ_UINT8 (&nr, vps->temporal_id_nesting_flag, 1);
/* skip reserved_0xffff_16bits */
if (!nal_reader_skip (&nr, 16))
goto error;
if (!gst_h265_parse_profile_tier_level (&vps->profile_tier_level, &nr,
vps->max_sub_layers_minus1))
goto error;
READ_UINT8 (&nr, vps->sub_layer_ordering_info_present_flag, 1);
for (i =
(vps->sub_layer_ordering_info_present_flag ? 0 :
vps->max_sub_layers_minus1); i <= vps->max_sub_layers_minus1; i++) {
READ_UE_MAX (&nr, vps->max_dec_pic_buffering_minus1[i], G_MAXUINT32 - 1);
READ_UE_MAX (&nr, vps->max_num_reorder_pics[i],
vps->max_dec_pic_buffering_minus1[i]);
READ_UE_MAX (&nr, vps->max_latency_increase_plus1[i], G_MAXUINT32 - 1);
}
/* setting default values if vps->sub_layer_ordering_info_present_flag is zero */
if (!vps->sub_layer_ordering_info_present_flag && vps->max_sub_layers_minus1) {
for (i = 0; i <= (vps->max_sub_layers_minus1 - 1); i++) {
vps->max_dec_pic_buffering_minus1[i] =
vps->max_dec_pic_buffering_minus1[vps->max_sub_layers_minus1];
vps->max_num_reorder_pics[i] =
vps->max_num_reorder_pics[vps->max_sub_layers_minus1];
vps->max_latency_increase_plus1[i] =
vps->max_latency_increase_plus1[vps->max_sub_layers_minus1];
}
}
READ_UINT8 (&nr, vps->max_layer_id, 6);
/* shall allow 63 */
CHECK_ALLOWED_MAX (vps->max_layer_id, 63);
READ_UE_MAX (&nr, vps->num_layer_sets_minus1, 1023);
/* allowed range is 0 to 1023 */
CHECK_ALLOWED_MAX (vps->num_layer_sets_minus1, 1023);
for (i = 1; i <= vps->num_layer_sets_minus1; i++) {
for (j = 0; j <= vps->max_layer_id; j++) {
/* layer_id_included_flag[i][j] */
/* FIXME: need to parse this when we can support parsing multi-layer info. */
if (!nal_reader_skip (&nr, 1))
goto error;
}
}
READ_UINT8 (&nr, vps->timing_info_present_flag, 1);
if (vps->timing_info_present_flag) {
READ_UINT32 (&nr, vps->num_units_in_tick, 32);
READ_UINT32 (&nr, vps->time_scale, 32);
READ_UINT8 (&nr, vps->poc_proportional_to_timing_flag, 1);
if (vps->poc_proportional_to_timing_flag)
READ_UE_MAX (&nr, vps->num_ticks_poc_diff_one_minus1, G_MAXUINT32 - 1);
READ_UE_MAX (&nr, vps->num_hrd_parameters, 1024);
/* allowed range is
* 0 to vps_num_layer_sets_minus1 + 1 */
CHECK_ALLOWED_MAX (vps->num_hrd_parameters, vps->num_layer_sets_minus1 + 1);
if (vps->num_hrd_parameters) {
READ_UE_MAX (&nr, vps->hrd_layer_set_idx, 1023);
/* allowed range is
* ( vps_base_layer_internal_flag ? 0 : 1 ) to vps_num_layer_sets_minus1
*/
CHECK_ALLOWED_MAX (vps->hrd_layer_set_idx, vps->num_layer_sets_minus1);
if (!gst_h265_parse_hrd_parameters (&vps->hrd_params, &nr,
vps->cprms_present_flag, vps->max_sub_layers_minus1))
goto error;
}
/* FIXME: VPS can have multiple hrd parameters, and therefore hrd_params
* should be an array (like Garray). But it also requires new _clear()
* method for free the array in GstH265VPS whenever gst_h265_parse_vps()
* is called. Need to work for multi-layer related parsing supporting
*
* FIXME: Following code is just work around to find correct
* vps_extension position */
/* skip the first parsed one above */
for (i = 1; i < vps->num_hrd_parameters; i++) {
guint16 hrd_layer_set_idx;
guint8 cprms_present_flag;
GstH265HRDParams hrd_params;
READ_UE_MAX (&nr, hrd_layer_set_idx, 1023);
CHECK_ALLOWED_MAX (hrd_layer_set_idx, vps->num_layer_sets_minus1);
/* need parsing if (i > 1) */
READ_UINT8 (&nr, cprms_present_flag, 1);
if (!gst_h265_parse_hrd_parameters (&hrd_params, &nr,
cprms_present_flag, vps->max_sub_layers_minus1))
goto error;
}
}
READ_UINT8 (&nr, vps->vps_extension, 1);
vps->valid = TRUE;
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Video parameter set\"");
vps->valid = FALSE;
return GST_H265_PARSER_ERROR;
}
/**
* gst_h265_parser_parse_sps:
* @parser: a #GstH265Parser
* @nalu: The #GST_H265_NAL_SPS #GstH265NalUnit to parse
* @sps: The #GstH265SPS to fill.
* @parse_vui_params: Whether to parse the vui_params or not
*
* Parses @data, and fills the @sps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_sps (GstH265Parser * parser, GstH265NalUnit * nalu,
GstH265SPS * sps, gboolean parse_vui_params)
{
GstH265ParserResult res =
gst_h265_parse_sps (parser, nalu, sps, parse_vui_params);
if (res == GST_H265_PARSER_OK) {
GST_DEBUG ("adding sequence parameter set with id: %d to array", sps->id);
parser->sps[sps->id] = *sps;
parser->last_sps = &parser->sps[sps->id];
}
return res;
}
/**
* gst_h265_parse_sps:
* parser: The #GstH265Parser
* @nalu: The #GST_H265_NAL_SPS #GstH265NalUnit to parse
* @sps: The #GstH265SPS to fill.
* @parse_vui_params: Whether to parse the vui_params or not
*
* Parses @data, and fills the @sps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parse_sps (GstH265Parser * parser, GstH265NalUnit * nalu,
GstH265SPS * sps, gboolean parse_vui_params)
{
NalReader nr;
guint i;
guint subwc[] = { 1, 2, 2, 1, 1 };
guint subhc[] = { 1, 2, 1, 1, 1 };
GST_DEBUG ("parsing SPS");
nal_reader_init (&nr, nalu->data + nalu->offset + nalu->header_bytes,
nalu->size - nalu->header_bytes);
memset (sps, 0, sizeof (*sps));
READ_UINT8 (&nr, sps->vps_id, 4);
READ_UINT8 (&nr, sps->max_sub_layers_minus1, 3);
READ_UINT8 (&nr, sps->temporal_id_nesting_flag, 1);
if (!gst_h265_parse_profile_tier_level (&sps->profile_tier_level, &nr,
sps->max_sub_layers_minus1))
goto error;
READ_UE_MAX (&nr, sps->id, GST_H265_MAX_SPS_COUNT - 1);
READ_UE_MAX (&nr, sps->chroma_format_idc, 3);
if (sps->chroma_format_idc == 3)
READ_UINT8 (&nr, sps->separate_colour_plane_flag, 1);
READ_UE_ALLOWED (&nr, sps->pic_width_in_luma_samples, 1, 16888);
READ_UE_ALLOWED (&nr, sps->pic_height_in_luma_samples, 1, 16888);
READ_UINT8 (&nr, sps->conformance_window_flag, 1);
if (sps->conformance_window_flag) {
READ_UE (&nr, sps->conf_win_left_offset);
READ_UE (&nr, sps->conf_win_right_offset);
READ_UE (&nr, sps->conf_win_top_offset);
READ_UE (&nr, sps->conf_win_bottom_offset);
}
READ_UE_MAX (&nr, sps->bit_depth_luma_minus8, 6);
READ_UE_MAX (&nr, sps->bit_depth_chroma_minus8, 6);
READ_UE_MAX (&nr, sps->log2_max_pic_order_cnt_lsb_minus4, 12);
READ_UINT8 (&nr, sps->sub_layer_ordering_info_present_flag, 1);
for (i =
(sps->sub_layer_ordering_info_present_flag ? 0 :
sps->max_sub_layers_minus1); i <= sps->max_sub_layers_minus1; i++) {
READ_UE_MAX (&nr, sps->max_dec_pic_buffering_minus1[i], 16);
READ_UE_MAX (&nr, sps->max_num_reorder_pics[i],
sps->max_dec_pic_buffering_minus1[i]);
READ_UE_MAX (&nr, sps->max_latency_increase_plus1[i], G_MAXUINT32 - 1);
}
/* setting default values if sps->sub_layer_ordering_info_present_flag is zero */
if (!sps->sub_layer_ordering_info_present_flag && sps->max_sub_layers_minus1) {
for (i = 0; i <= (sps->max_sub_layers_minus1 - 1); i++) {
sps->max_dec_pic_buffering_minus1[i] =
sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1];
sps->max_num_reorder_pics[i] =
sps->max_num_reorder_pics[sps->max_sub_layers_minus1];
sps->max_latency_increase_plus1[i] =
sps->max_latency_increase_plus1[sps->max_sub_layers_minus1];
}
}
/* The limits are calculted based on the profile_tier_level constraint
* in Annex-A: CtbLog2SizeY = 4 to 6 */
READ_UE_MAX (&nr, sps->log2_min_luma_coding_block_size_minus3, 3);
READ_UE_MAX (&nr, sps->log2_diff_max_min_luma_coding_block_size, 6);
READ_UE_MAX (&nr, sps->log2_min_transform_block_size_minus2, 3);
READ_UE_MAX (&nr, sps->log2_diff_max_min_transform_block_size, 3);
READ_UE_MAX (&nr, sps->max_transform_hierarchy_depth_inter, 4);
READ_UE_MAX (&nr, sps->max_transform_hierarchy_depth_intra, 4);
READ_UINT8 (&nr, sps->scaling_list_enabled_flag, 1);
if (sps->scaling_list_enabled_flag) {
READ_UINT8 (&nr, sps->scaling_list_data_present_flag, 1);
if (sps->scaling_list_data_present_flag)
if (!gst_h265_parser_parse_scaling_lists (&nr, &sps->scaling_list, FALSE))
goto error;
}
READ_UINT8 (&nr, sps->amp_enabled_flag, 1);
READ_UINT8 (&nr, sps->sample_adaptive_offset_enabled_flag, 1);
READ_UINT8 (&nr, sps->pcm_enabled_flag, 1);
if (sps->pcm_enabled_flag) {
READ_UINT8 (&nr, sps->pcm_sample_bit_depth_luma_minus1, 4);
READ_UINT8 (&nr, sps->pcm_sample_bit_depth_chroma_minus1, 4);
READ_UE_MAX (&nr, sps->log2_min_pcm_luma_coding_block_size_minus3, 2);
READ_UE_MAX (&nr, sps->log2_diff_max_min_pcm_luma_coding_block_size, 2);
READ_UINT8 (&nr, sps->pcm_loop_filter_disabled_flag, 1);
}
READ_UE_MAX (&nr, sps->num_short_term_ref_pic_sets, 64);
for (i = 0; i < sps->num_short_term_ref_pic_sets; i++)
if (!gst_h265_parser_parse_short_term_ref_pic_sets
(&sps->short_term_ref_pic_set[i], &nr, i, sps))
goto error;
READ_UINT8 (&nr, sps->long_term_ref_pics_present_flag, 1);
if (sps->long_term_ref_pics_present_flag) {
READ_UE_MAX (&nr, sps->num_long_term_ref_pics_sps, 32);
for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
READ_UINT16 (&nr, sps->lt_ref_pic_poc_lsb_sps[i],
sps->log2_max_pic_order_cnt_lsb_minus4 + 4);
READ_UINT8 (&nr, sps->used_by_curr_pic_lt_sps_flag[i], 1);
}
}
READ_UINT8 (&nr, sps->temporal_mvp_enabled_flag, 1);
READ_UINT8 (&nr, sps->strong_intra_smoothing_enabled_flag, 1);
READ_UINT8 (&nr, sps->vui_parameters_present_flag, 1);
if (sps->vui_parameters_present_flag && parse_vui_params)
if (!gst_h265_parse_vui_parameters (sps, &nr))
goto error;
READ_UINT8 (&nr, sps->sps_extension_flag, 1);
if (sps->sps_extension_flag) {
READ_UINT8 (&nr, sps->sps_range_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_multilayer_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_3d_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_scc_extension_flag, 1);
READ_UINT8 (&nr, sps->sps_extension_4bits, 4);
}
if (sps->sps_range_extension_flag) {
READ_UINT8 (&nr,
sps->sps_extension_params.transform_skip_rotation_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extension_params.transform_skip_context_enabled_flag, 1);
READ_UINT8 (&nr, sps->sps_extension_params.implicit_rdpcm_enabled_flag, 1);
READ_UINT8 (&nr, sps->sps_extension_params.explicit_rdpcm_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extension_params.extended_precision_processing_flag, 1);
READ_UINT8 (&nr, sps->sps_extension_params.intra_smoothing_disabled_flag,
1);
READ_UINT8 (&nr,
sps->sps_extension_params.high_precision_offsets_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extension_params.persistent_rice_adaptation_enabled_flag, 1);
READ_UINT8 (&nr,
sps->sps_extension_params.cabac_bypass_alignment_enabled_flag, 1);
}
if (sps->sps_multilayer_extension_flag) {
GST_WARNING ("do not support multilayer extension, skip all"
" remaining bits");
goto done;
}
if (sps->sps_3d_extension_flag) {
GST_WARNING ("do not support 3d extension, skip all remaining bits");
goto done;
}
if (sps->sps_scc_extension_flag) {
READ_UINT8 (&nr,
sps->sps_scc_extension_params.sps_curr_pic_ref_enabled_flag, 1);
READ_UINT8 (&nr, sps->sps_scc_extension_params.palette_mode_enabled_flag,
1);
if (sps->sps_scc_extension_params.palette_mode_enabled_flag) {
READ_UE_MAX (&nr, sps->sps_scc_extension_params.palette_max_size, 64);
READ_UE_MAX (&nr,
sps->sps_scc_extension_params.delta_palette_max_predictor_size,
128 - sps->sps_scc_extension_params.palette_max_size);
READ_UINT8 (&nr,
sps->
sps_scc_extension_params.sps_palette_predictor_initializers_present_flag,
1);
if (sps->
sps_scc_extension_params.sps_palette_predictor_initializers_present_flag)
{
guint comp;
READ_UE_MAX (&nr,
sps->
sps_scc_extension_params.sps_num_palette_predictor_initializer_minus1,
sps->sps_scc_extension_params.palette_max_size +
sps->sps_scc_extension_params.delta_palette_max_predictor_size - 1);
for (comp = 0; comp < (sps->chroma_format_idc == 0 ? 1 : 3); comp++) {
guint num_bits;
guint num =
sps->
sps_scc_extension_params.sps_num_palette_predictor_initializer_minus1
+ 1;
num_bits = (comp == 0 ? sps->bit_depth_luma_minus8 + 8 :
sps->bit_depth_chroma_minus8 + 8);
for (i = 0; i < num; i++)
READ_UINT32 (&nr,
sps->sps_scc_extension_params.sps_palette_predictor_initializer
[comp]
[i], num_bits);
}
}
}
READ_UINT8 (&nr,
sps->sps_scc_extension_params.motion_vector_resolution_control_idc, 2);
READ_UINT8 (&nr,
sps->sps_scc_extension_params.intra_boundary_filtering_disabled_flag,
1);
}
done:
/* calculate ChromaArrayType */
if (!sps->separate_colour_plane_flag)
sps->chroma_array_type = sps->chroma_format_idc;
/* Calculate width and height */
sps->width = sps->pic_width_in_luma_samples;
sps->height = sps->pic_height_in_luma_samples;
if (sps->width < 0 || sps->height < 0) {
GST_WARNING ("invalid width/height in SPS");
goto error;
}
if (sps->conformance_window_flag) {
const guint crop_unit_x = subwc[sps->chroma_format_idc];
const guint crop_unit_y = subhc[sps->chroma_format_idc];
sps->crop_rect_width = sps->width -
(sps->conf_win_left_offset + sps->conf_win_right_offset) * crop_unit_x;
sps->crop_rect_height = sps->height -
(sps->conf_win_top_offset + sps->conf_win_bottom_offset) * crop_unit_y;
sps->crop_rect_x = sps->conf_win_left_offset * crop_unit_x;
sps->crop_rect_y = sps->conf_win_top_offset * crop_unit_y;
GST_LOG ("crop_rectangle x=%u y=%u width=%u, height=%u", sps->crop_rect_x,
sps->crop_rect_y, sps->crop_rect_width, sps->crop_rect_height);
}
sps->fps_num = 0;
sps->fps_den = 1;
sps->valid = TRUE;
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Sequence parameter set\"");
sps->valid = FALSE;
return GST_H265_PARSER_ERROR;
}
/**
* gst_h265_parse_pps:
* @parser: a #GstH265Parser
* @nalu: The #GST_H265_NAL_PPS #GstH265NalUnit to parse
* @pps: The #GstH265PPS to fill.
*
* Parses @data, and fills the @pps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parse_pps (GstH265Parser * parser, GstH265NalUnit * nalu,
GstH265PPS * pps)
{
guint32 MaxBitDepthY, MaxBitDepthC;
NalReader nr;
guint8 i;
GST_DEBUG ("parsing PPS");
nal_reader_init (&nr, nalu->data + nalu->offset + nalu->header_bytes,
nalu->size - nalu->header_bytes);
memset (pps, 0, sizeof (*pps));
READ_UE_MAX (&nr, pps->id, GST_H265_MAX_PPS_COUNT - 1);
READ_UE_MAX (&nr, pps->sps_id, GST_H265_MAX_SPS_COUNT - 1);
/* set default values for fields that might not be present in the bitstream
and have valid defaults */
pps->uniform_spacing_flag = 1;
pps->loop_filter_across_tiles_enabled_flag = 1;
READ_UINT8 (&nr, pps->dependent_slice_segments_enabled_flag, 1);
READ_UINT8 (&nr, pps->output_flag_present_flag, 1);
READ_UINT8 (&nr, pps->num_extra_slice_header_bits, 3);
READ_UINT8 (&nr, pps->sign_data_hiding_enabled_flag, 1);
READ_UINT8 (&nr, pps->cabac_init_present_flag, 1);
READ_UE_MAX (&nr, pps->num_ref_idx_l0_default_active_minus1, 14);
READ_UE_MAX (&nr, pps->num_ref_idx_l1_default_active_minus1, 14);
/* The value of init_qp_minus26 shall be in the range of
* −( 26 + QpBdOffsetY ) to +25, inclusive.
* QpBdOffsetY = 6 * bit_depth_luma_minus8 (7-5)
* and bit_depth_luma_minus8 shall be in the range of 0 to 8, inclusive.
* so the minimum possible value of init_qp_minus26 is -(26 + 6*8) */
READ_SE_ALLOWED (&nr, pps->init_qp_minus26, -(26 + 6 * 8), 25);
READ_UINT8 (&nr, pps->constrained_intra_pred_flag, 1);
READ_UINT8 (&nr, pps->transform_skip_enabled_flag, 1);
READ_UINT8 (&nr, pps->cu_qp_delta_enabled_flag, 1);
if (pps->cu_qp_delta_enabled_flag) {
READ_UE_MAX (&nr, pps->diff_cu_qp_delta_depth, 6);
}
READ_SE_ALLOWED (&nr, pps->cb_qp_offset, -12, 12);
READ_SE_ALLOWED (&nr, pps->cr_qp_offset, -12, 12);
READ_UINT8 (&nr, pps->slice_chroma_qp_offsets_present_flag, 1);
READ_UINT8 (&nr, pps->weighted_pred_flag, 1);
READ_UINT8 (&nr, pps->weighted_bipred_flag, 1);
READ_UINT8 (&nr, pps->transquant_bypass_enabled_flag, 1);
READ_UINT8 (&nr, pps->tiles_enabled_flag, 1);
READ_UINT8 (&nr, pps->entropy_coding_sync_enabled_flag, 1);
if (pps->tiles_enabled_flag) {
GstH265SPS *sps;
guint32 CtbSizeY, MinCbLog2SizeY, CtbLog2SizeY;
sps = gst_h265_parser_get_sps (parser, pps->sps_id);
if (!sps) {
GST_WARNING
("couldn't find associated sequence parameter set with id: %d",
pps->sps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
MinCbLog2SizeY = sps->log2_min_luma_coding_block_size_minus3 + 3;
CtbLog2SizeY =
MinCbLog2SizeY + sps->log2_diff_max_min_luma_coding_block_size;
CtbSizeY = 1 << CtbLog2SizeY;
pps->PicHeightInCtbsY =
ceil ((gdouble) sps->pic_height_in_luma_samples / (gdouble) CtbSizeY);
pps->PicWidthInCtbsY =
ceil ((gdouble) sps->pic_width_in_luma_samples / (gdouble) CtbSizeY);
READ_UE_ALLOWED (&nr,
pps->num_tile_columns_minus1, 0, pps->PicWidthInCtbsY - 1);
READ_UE_ALLOWED (&nr,
pps->num_tile_rows_minus1, 0, pps->PicHeightInCtbsY - 1);
if (pps->num_tile_columns_minus1 + 1 >
G_N_ELEMENTS (pps->column_width_minus1)) {
GST_WARNING ("Invalid \"num_tile_columns_minus1\" %d",
pps->num_tile_columns_minus1);
goto error;
}
if (pps->num_tile_rows_minus1 + 1 > G_N_ELEMENTS (pps->row_height_minus1)) {
GST_WARNING ("Invalid \"num_tile_rows_minus1\" %d",
pps->num_tile_rows_minus1);
goto error;
}
READ_UINT8 (&nr, pps->uniform_spacing_flag, 1);
/* 6.5.1, 6-4, 6-5, 7.4.3.3.1 */
if (pps->uniform_spacing_flag) {
guint8 num_col = pps->num_tile_columns_minus1 + 1;
guint8 num_row = pps->num_tile_rows_minus1 + 1;
for (i = 0; i < num_col; i++) {
pps->column_width_minus1[i] =
((i + 1) * pps->PicWidthInCtbsY / num_col
- i * pps->PicWidthInCtbsY / num_col) - 1;
}
for (i = 0; i < num_row; i++) {
pps->row_height_minus1[i] =
((i + 1) * pps->PicHeightInCtbsY / num_row
- i * pps->PicHeightInCtbsY / num_row) - 1;
}
} else {
pps->column_width_minus1[pps->num_tile_columns_minus1] =
pps->PicWidthInCtbsY - 1;
for (i = 0; i < pps->num_tile_columns_minus1; i++) {
READ_UE (&nr, pps->column_width_minus1[i]);
pps->column_width_minus1[pps->num_tile_columns_minus1] -=
(pps->column_width_minus1[i] + 1);
}
pps->row_height_minus1[pps->num_tile_rows_minus1] =
pps->PicHeightInCtbsY - 1;
for (i = 0; i < pps->num_tile_rows_minus1; i++) {
READ_UE (&nr, pps->row_height_minus1[i]);
pps->row_height_minus1[pps->num_tile_rows_minus1] -=
(pps->row_height_minus1[i] + 1);
}
}
READ_UINT8 (&nr, pps->loop_filter_across_tiles_enabled_flag, 1);
}
READ_UINT8 (&nr, pps->loop_filter_across_slices_enabled_flag, 1);
READ_UINT8 (&nr, pps->deblocking_filter_control_present_flag, 1);
if (pps->deblocking_filter_control_present_flag) {
READ_UINT8 (&nr, pps->deblocking_filter_override_enabled_flag, 1);
READ_UINT8 (&nr, pps->deblocking_filter_disabled_flag, 1);
if (!pps->deblocking_filter_disabled_flag) {
READ_SE_ALLOWED (&nr, pps->beta_offset_div2, -6, 6);
READ_SE_ALLOWED (&nr, pps->tc_offset_div2, -6, +6);
}
}
READ_UINT8 (&nr, pps->scaling_list_data_present_flag, 1);
if (pps->scaling_list_data_present_flag)
if (!gst_h265_parser_parse_scaling_lists (&nr, &pps->scaling_list, FALSE))
goto error;
READ_UINT8 (&nr, pps->lists_modification_present_flag, 1);
READ_UE_MAX (&nr, pps->log2_parallel_merge_level_minus2, 4);
READ_UINT8 (&nr, pps->slice_segment_header_extension_present_flag, 1);
READ_UINT8 (&nr, pps->pps_extension_flag, 1);
if (pps->pps_extension_flag) {
READ_UINT8 (&nr, pps->pps_range_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_multilayer_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_3d_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_scc_extension_flag, 1);
READ_UINT8 (&nr, pps->pps_extension_4bits, 4);
}
if (pps->pps_range_extension_flag) {
GstH265SPS *sps;
sps = gst_h265_parser_get_sps (parser, pps->sps_id);
if (!sps) {
GST_WARNING
("couldn't find associated sequence parameter set with id: %d",
pps->sps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
if (pps->transform_skip_enabled_flag)
READ_UE (&nr,
pps->pps_extension_params.log2_max_transform_skip_block_size_minus2);
READ_UINT8 (&nr,
pps->pps_extension_params.cross_component_prediction_enabled_flag, 1);
READ_UINT8 (&nr,
pps->pps_extension_params.chroma_qp_offset_list_enabled_flag, 1);
if (pps->pps_extension_params.chroma_qp_offset_list_enabled_flag) {
READ_UE_MAX (&nr,
pps->pps_extension_params.diff_cu_chroma_qp_offset_depth,
sps->log2_diff_max_min_luma_coding_block_size);
READ_UE_MAX (&nr,
pps->pps_extension_params.chroma_qp_offset_list_len_minus1, 5);
for (i = 0;
i <= pps->pps_extension_params.chroma_qp_offset_list_len_minus1;
i++) {
READ_SE_ALLOWED (&nr, pps->pps_extension_params.cb_qp_offset_list[i],
-12, 12);
READ_SE_ALLOWED (&nr, pps->pps_extension_params.cr_qp_offset_list[i],
-12, 12);
}
}
MaxBitDepthY =
sps->bit_depth_luma_minus8 > 2 ? sps->bit_depth_luma_minus8 - 2 : 0;
MaxBitDepthC =
sps->bit_depth_chroma_minus8 > 2 ? sps->bit_depth_chroma_minus8 - 2 : 0;
READ_UE_ALLOWED (&nr, pps->pps_extension_params.log2_sao_offset_scale_luma,
0, MaxBitDepthY);
READ_UE_ALLOWED (&nr,
pps->pps_extension_params.log2_sao_offset_scale_chroma, 0,
MaxBitDepthC);
}
if (pps->pps_multilayer_extension_flag) {
GST_WARNING ("do not support multilayer extension, skip all"
" remaining bits");
goto done;
}
if (pps->pps_3d_extension_flag) {
GST_WARNING ("do not support 3d extension, skip all remaining bits");
goto done;
}
if (pps->pps_scc_extension_flag) {
GstH265SPS *sps;
sps = gst_h265_parser_get_sps (parser, pps->sps_id);
if (!sps) {
GST_WARNING
("couldn't find associated sequence parameter set with id: %d",
pps->sps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
READ_UINT8 (&nr,
pps->pps_scc_extension_params.pps_curr_pic_ref_enabled_flag, 1);
READ_UINT8 (&nr,
pps->
pps_scc_extension_params.residual_adaptive_colour_transform_enabled_flag,
1);
if (pps->
pps_scc_extension_params.residual_adaptive_colour_transform_enabled_flag)
{
READ_UINT8 (&nr,
pps->pps_scc_extension_params.pps_slice_act_qp_offsets_present_flag,
1);
READ_SE_ALLOWED (&nr,
pps->pps_scc_extension_params.pps_act_y_qp_offset_plus5, -7, 17);
READ_SE_ALLOWED (&nr,
pps->pps_scc_extension_params.pps_act_cb_qp_offset_plus5, -7, 17);
READ_SE_ALLOWED (&nr,
pps->pps_scc_extension_params.pps_act_cr_qp_offset_plus3, -9, 15);
}
READ_UINT8 (&nr,
pps->
pps_scc_extension_params.pps_palette_predictor_initializers_present_flag,
1);
if (pps->
pps_scc_extension_params.pps_palette_predictor_initializers_present_flag)
{
READ_UE_MAX (&nr,
pps->pps_scc_extension_params.pps_num_palette_predictor_initializer,
sps->sps_scc_extension_params.palette_max_size +
sps->sps_scc_extension_params.delta_palette_max_predictor_size);
if (pps->pps_scc_extension_params.pps_num_palette_predictor_initializer >
0) {
guint comp;
READ_UINT8 (&nr, pps->pps_scc_extension_params.monochrome_palette_flag,
1);
/* It is a requirement of bitstream conformance that the value of
luma_bit_depth_entry_minus8 shall be equal to the value of
bit_depth_luma_minus8 */
READ_UE_ALLOWED (&nr,
pps->pps_scc_extension_params.luma_bit_depth_entry_minus8,
sps->bit_depth_luma_minus8, sps->bit_depth_luma_minus8);
if (!pps->pps_scc_extension_params.monochrome_palette_flag) {
/* It is a requirement of bitstream conformance that the value
of chroma_bit_depth_entry_minus8 shall be equal to the value
of bit_depth_chroma_minus8. */
READ_UE_ALLOWED (&nr,
pps->pps_scc_extension_params.chroma_bit_depth_entry_minus8,
sps->bit_depth_chroma_minus8, sps->bit_depth_chroma_minus8);
}
for (comp = 0; comp <
(pps->pps_scc_extension_params.monochrome_palette_flag ? 1 : 3);
comp++) {
guint num_bits;
guint num =
pps->
pps_scc_extension_params.pps_num_palette_predictor_initializer;
num_bits = (comp == 0 ?
pps->pps_scc_extension_params.luma_bit_depth_entry_minus8 + 8 :
pps->pps_scc_extension_params.chroma_bit_depth_entry_minus8 + 8);
for (i = 0; i < num; i++)
READ_UINT32 (&nr,
pps->pps_scc_extension_params.pps_palette_predictor_initializer
[comp][i], num_bits);
}
}
}
}
done:
pps->valid = TRUE;
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Picture parameter set\"");
pps->valid = FALSE;
return GST_H265_PARSER_ERROR;
}
/**
* gst_h265_parser_parse_pps:
* @parser: a #GstH265Parser
* @nalu: The #GST_H265_NAL_PPS #GstH265NalUnit to parse
* @pps: The #GstH265PPS to fill.
*
* Parses @data, and fills the @pps structure.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_pps (GstH265Parser * parser,
GstH265NalUnit * nalu, GstH265PPS * pps)
{
GstH265ParserResult res = gst_h265_parse_pps (parser, nalu, pps);
if (res == GST_H265_PARSER_OK) {
GST_DEBUG ("adding picture parameter set with id: %d to array", pps->id);
parser->pps[pps->id] = *pps;
parser->last_pps = &parser->pps[pps->id];
}
return res;
}
static GstH265ParserResult
gst_h265_parser_fill_sps (GstH265Parser * parser, GstH265SPS * sps)
{
GstH265VPS *vps;
GstH265VUIParams *vui = &sps->vui_params;
GstH265ParserResult ret = GST_H265_PARSER_OK;
vps = gst_h265_parser_get_vps (parser, sps->vps_id);
if (!vps) {
GST_DEBUG ("couldn't find associated video parameter set with id: %d",
sps->vps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
sps->vps = vps;
if (vui && vui->timing_info_present_flag) {
/* derive framerate for progressive stream if the pic_struct
* syntax element is not present in picture timing SEI messages */
/* Fixme: handle other cases also */
if (vui->parsed && vui->timing_info_present_flag
&& !vui->field_seq_flag && !vui->frame_field_info_present_flag) {
sps->fps_num = vui->time_scale;
sps->fps_den = vui->num_units_in_tick;
GST_LOG ("framerate %d/%d in VUI", sps->fps_num, sps->fps_den);
}
} else if (vps && vps->timing_info_present_flag) {
sps->fps_num = vps->time_scale;
sps->fps_den = vps->num_units_in_tick;
GST_LOG ("framerate %d/%d in VPS", sps->fps_num, sps->fps_den);
} else {
GST_LOG ("No VUI, unknown framerate");
}
return ret;
}
static GstH265ParserResult
gst_h265_parser_fill_pps (GstH265Parser * parser, GstH265PPS * pps)
{
GstH265SPS *sps;
gint qp_bd_offset;
guint32 CtbSizeY, MinCbLog2SizeY, CtbLog2SizeY;
GstH265ParserResult ret = GST_H265_PARSER_OK;
sps = gst_h265_parser_get_sps (parser, pps->sps_id);
if (!sps) {
GST_WARNING ("couldn't find associated sequence parameter set with id: %d",
pps->sps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
ret = gst_h265_parser_fill_sps (parser, sps);
if (ret != GST_H265_PARSER_OK) {
GST_WARNING ("couldn't fill sps id: %d", pps->sps_id);
return ret;
}
pps->sps = sps;
qp_bd_offset = 6 * sps->bit_depth_luma_minus8;
MinCbLog2SizeY = sps->log2_min_luma_coding_block_size_minus3 + 3;
CtbLog2SizeY = MinCbLog2SizeY + sps->log2_diff_max_min_luma_coding_block_size;
CtbSizeY = 1 << CtbLog2SizeY;
pps->PicHeightInCtbsY =
ceil ((gdouble) sps->pic_height_in_luma_samples / (gdouble) CtbSizeY);
pps->PicWidthInCtbsY =
ceil ((gdouble) sps->pic_width_in_luma_samples / (gdouble) CtbSizeY);
if (pps->init_qp_minus26 < -(26 + qp_bd_offset))
return GST_H265_PARSER_BROKEN_LINK;
if (sps->scaling_list_enabled_flag && !sps->scaling_list_data_present_flag
&& !pps->scaling_list_data_present_flag)
if (!gst_h265_parser_parse_scaling_lists (NULL, &pps->scaling_list, TRUE))
return GST_H265_PARSER_BROKEN_LINK;
if (pps->cu_qp_delta_enabled_flag)
if (pps->diff_cu_qp_delta_depth >
sps->log2_diff_max_min_luma_coding_block_size)
return GST_H265_PARSER_BROKEN_LINK;
return ret;
}
/**
* gst_h265_parser_parse_slice_hdr:
* @parser: a #GstH265Parser
* @nalu: The `GST_H265_NAL_SLICE` #GstH265NalUnit to parse
* @slice: The #GstH265SliceHdr to fill.
*
* Parses @data, and fills the @slice structure.
* The resulting @slice_hdr structure shall be deallocated with
* gst_h265_slice_hdr_free() when it is no longer needed
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_slice_hdr (GstH265Parser * parser,
GstH265NalUnit * nalu, GstH265SliceHdr * slice)
{
NalReader nr;
gint pps_id;
GstH265PPS *pps;
GstH265SPS *sps;
guint i;
GstH265ShortTermRefPicSet *stRPS = NULL;
guint32 UsedByCurrPicLt[16];
guint32 PicSizeInCtbsY;
gint NumPocTotalCurr = 0;
GstH265ParserResult err;
memset (slice, 0, sizeof (*slice));
if (!nalu->size) {
GST_DEBUG ("Invalid Nal Unit");
return GST_H265_PARSER_ERROR;
}
nal_reader_init (&nr, nalu->data + nalu->offset + nalu->header_bytes,
nalu->size - nalu->header_bytes);
GST_DEBUG ("parsing \"Slice header\", slice type");
READ_UINT8 (&nr, slice->first_slice_segment_in_pic_flag, 1);
if (GST_H265_IS_NAL_TYPE_IRAP (nalu->type))
READ_UINT8 (&nr, slice->no_output_of_prior_pics_flag, 1);
READ_UE_MAX (&nr, pps_id, GST_H265_MAX_PPS_COUNT - 1);
pps = gst_h265_parser_get_pps (parser, pps_id);
if (!pps) {
GST_WARNING
("couldn't find associated picture parameter set with id: %d", pps_id);
return GST_H265_PARSER_BROKEN_LINK;
}
err = gst_h265_parser_fill_pps (parser, pps);
if (err != GST_H265_PARSER_OK) {
GST_WARNING ("couldn't fill pps id: %d", pps_id);
return err;
}
slice->pps = pps;
sps = pps->sps;
if (!sps) {
GST_WARNING
("couldn't find associated sequence parameter set with id: %d",
pps->id);
return GST_H265_PARSER_BROKEN_LINK;
}
PicSizeInCtbsY = pps->PicWidthInCtbsY * pps->PicHeightInCtbsY;
/* set default values for fields that might not be present in the bitstream
* and have valid defaults */
slice->pic_output_flag = 1;
slice->collocated_from_l0_flag = 1;
slice->deblocking_filter_disabled_flag = pps->deblocking_filter_disabled_flag;
slice->beta_offset_div2 = pps->beta_offset_div2;
slice->tc_offset_div2 = pps->tc_offset_div2;
slice->loop_filter_across_slices_enabled_flag =
pps->loop_filter_across_slices_enabled_flag;
if (!slice->first_slice_segment_in_pic_flag) {
const guint n = ceil_log2 (PicSizeInCtbsY);
if (pps->dependent_slice_segments_enabled_flag)
READ_UINT8 (&nr, slice->dependent_slice_segment_flag, 1);
/* sice_segment_address parsing */
READ_UINT32 (&nr, slice->segment_address, n);
}
if (!slice->dependent_slice_segment_flag) {
for (i = 0; i < pps->num_extra_slice_header_bits; i++) {
if (!nal_reader_skip (&nr, 1))
goto error;
}
READ_UE_MAX (&nr, slice->type, 63);
if (pps->output_flag_present_flag)
READ_UINT8 (&nr, slice->pic_output_flag, 1);
if (sps->separate_colour_plane_flag == 1)
READ_UINT8 (&nr, slice->colour_plane_id, 2);
if (!GST_H265_IS_NAL_TYPE_IDR (nalu->type)) {
READ_UINT16 (&nr, slice->pic_order_cnt_lsb,
(sps->log2_max_pic_order_cnt_lsb_minus4 + 4));
READ_UINT8 (&nr, slice->short_term_ref_pic_set_sps_flag, 1);
if (!slice->short_term_ref_pic_set_sps_flag) {
guint pos = nal_reader_get_pos (&nr);
guint epb_pos = nal_reader_get_epb_count (&nr);
if (!gst_h265_parser_parse_short_term_ref_pic_sets
(&slice->short_term_ref_pic_sets, &nr,
sps->num_short_term_ref_pic_sets, sps))
goto error;
slice->short_term_ref_pic_set_size =
(nal_reader_get_pos (&nr) - pos) -
(8 * (nal_reader_get_epb_count (&nr) - epb_pos));
} else if (sps->num_short_term_ref_pic_sets > 1) {
const guint n = ceil_log2 (sps->num_short_term_ref_pic_sets);
READ_UINT8 (&nr, slice->short_term_ref_pic_set_idx, n);
CHECK_ALLOWED_MAX (slice->short_term_ref_pic_set_idx,
sps->num_short_term_ref_pic_sets - 1);
}
if (sps->long_term_ref_pics_present_flag) {
guint32 limit;
guint pos = nal_reader_get_pos (&nr);
guint epb_pos = nal_reader_get_epb_count (&nr);
if (sps->num_long_term_ref_pics_sps > 0)
READ_UE_MAX (&nr, slice->num_long_term_sps,
sps->num_long_term_ref_pics_sps);
READ_UE_MAX (&nr, slice->num_long_term_pics, 16);
limit = slice->num_long_term_sps + slice->num_long_term_pics;
for (i = 0; i < limit; i++) {
if (i < slice->num_long_term_sps) {
if (sps->num_long_term_ref_pics_sps > 1) {
const guint n = ceil_log2 (sps->num_long_term_ref_pics_sps);
READ_UINT8 (&nr, slice->lt_idx_sps[i], n);
}
} else {
READ_UINT32 (&nr, slice->poc_lsb_lt[i],
(sps->log2_max_pic_order_cnt_lsb_minus4 + 4));
READ_UINT8 (&nr, slice->used_by_curr_pic_lt_flag[i], 1);
}
/* calculate UsedByCurrPicLt */
if (i < slice->num_long_term_sps)
UsedByCurrPicLt[i] =
sps->used_by_curr_pic_lt_sps_flag[slice->lt_idx_sps[i]];
else
UsedByCurrPicLt[i] = slice->used_by_curr_pic_lt_flag[i];
READ_UINT8 (&nr, slice->delta_poc_msb_present_flag[i], 1);
if (slice->delta_poc_msb_present_flag[i])
READ_UE (&nr, slice->delta_poc_msb_cycle_lt[i]);
}
slice->long_term_ref_pic_set_size =
(nal_reader_get_pos (&nr) - pos) -
(8 * (nal_reader_get_epb_count (&nr) - epb_pos));
}
if (sps->temporal_mvp_enabled_flag)
READ_UINT8 (&nr, slice->temporal_mvp_enabled_flag, 1);
}
if (sps->sample_adaptive_offset_enabled_flag) {
READ_UINT8 (&nr, slice->sao_luma_flag, 1);
if (sps->chroma_array_type)
READ_UINT8 (&nr, slice->sao_chroma_flag, 1);
}
if (GST_H265_IS_B_SLICE (slice) || GST_H265_IS_P_SLICE (slice)) {
READ_UINT8 (&nr, slice->num_ref_idx_active_override_flag, 1);
if (slice->num_ref_idx_active_override_flag) {
READ_UE_MAX (&nr, slice->num_ref_idx_l0_active_minus1, 14);
if (GST_H265_IS_B_SLICE (slice))
READ_UE_MAX (&nr, slice->num_ref_idx_l1_active_minus1, 14);
} else {
/*set default values */
slice->num_ref_idx_l0_active_minus1 =
pps->num_ref_idx_l0_default_active_minus1;
slice->num_ref_idx_l1_active_minus1 =
pps->num_ref_idx_l1_default_active_minus1;
}
/* calculate NumPocTotalCurr */
if (slice->short_term_ref_pic_set_sps_flag)
stRPS = &sps->short_term_ref_pic_set[slice->short_term_ref_pic_set_idx];
else
stRPS = &slice->short_term_ref_pic_sets;
for (i = 0; i < stRPS->NumNegativePics; i++)
if (stRPS->UsedByCurrPicS0[i])
NumPocTotalCurr++;
for (i = 0; i < stRPS->NumPositivePics; i++)
if (stRPS->UsedByCurrPicS1[i])
NumPocTotalCurr++;
for (i = 0;
i < (slice->num_long_term_sps + slice->num_long_term_pics); i++)
if (UsedByCurrPicLt[i])
NumPocTotalCurr++;
slice->NumPocTotalCurr = NumPocTotalCurr;
if (pps->lists_modification_present_flag) {
if (NumPocTotalCurr > 1)
if (!gst_h265_slice_parse_ref_pic_list_modification (slice, &nr,
NumPocTotalCurr))
goto error;
}
if (GST_H265_IS_B_SLICE (slice))
READ_UINT8 (&nr, slice->mvd_l1_zero_flag, 1);
if (pps->cabac_init_present_flag)
READ_UINT8 (&nr, slice->cabac_init_flag, 1);
if (slice->temporal_mvp_enabled_flag) {
if (GST_H265_IS_B_SLICE (slice))
READ_UINT8 (&nr, slice->collocated_from_l0_flag, 1);
if ((slice->collocated_from_l0_flag
&& slice->num_ref_idx_l0_active_minus1 > 0)
|| (!slice->collocated_from_l0_flag
&& slice->num_ref_idx_l1_active_minus1 > 0)) {
/*fixme: add optimization */
if ((GST_H265_IS_P_SLICE (slice))
|| ((GST_H265_IS_B_SLICE (slice))
&& (slice->collocated_from_l0_flag))) {
READ_UE_MAX (&nr, slice->collocated_ref_idx,
slice->num_ref_idx_l0_active_minus1);
} else if ((GST_H265_IS_B_SLICE (slice))
&& (!slice->collocated_from_l0_flag)) {
READ_UE_MAX (&nr, slice->collocated_ref_idx,
slice->num_ref_idx_l1_active_minus1);
}
}
}
if ((pps->weighted_pred_flag && GST_H265_IS_P_SLICE (slice)) ||
(pps->weighted_bipred_flag && GST_H265_IS_B_SLICE (slice)))
if (!gst_h265_slice_parse_pred_weight_table (slice, &nr))
goto error;
READ_UE_MAX (&nr, slice->five_minus_max_num_merge_cand, 4);
if (sps->sps_scc_extension_params.motion_vector_resolution_control_idc
== 2)
READ_UINT8 (&nr, slice->use_integer_mv_flag, 1);
}
READ_SE_ALLOWED (&nr, slice->qp_delta, -87, 77);
if (pps->slice_chroma_qp_offsets_present_flag) {
READ_SE_ALLOWED (&nr, slice->cb_qp_offset, -12, 12);
READ_SE_ALLOWED (&nr, slice->cr_qp_offset, -12, 12);
}
if (pps->pps_scc_extension_params.pps_slice_act_qp_offsets_present_flag) {
READ_SE_ALLOWED (&nr, slice->slice_act_y_qp_offset, -12, 12);
READ_SE_ALLOWED (&nr, slice->slice_act_cb_qp_offset, -12, 12);
READ_SE_ALLOWED (&nr, slice->slice_act_cr_qp_offset, -12, 12);
}
if (pps->pps_extension_params.chroma_qp_offset_list_enabled_flag)
READ_UINT8 (&nr, slice->cu_chroma_qp_offset_enabled_flag, 1);
if (pps->deblocking_filter_override_enabled_flag)
READ_UINT8 (&nr, slice->deblocking_filter_override_flag, 1);
if (slice->deblocking_filter_override_flag) {
READ_UINT8 (&nr, slice->deblocking_filter_disabled_flag, 1);
if (!slice->deblocking_filter_disabled_flag) {
READ_SE_ALLOWED (&nr, slice->beta_offset_div2, -6, 6);
READ_SE_ALLOWED (&nr, slice->tc_offset_div2, -6, 6);
}
}
if (pps->loop_filter_across_slices_enabled_flag &&
(slice->sao_luma_flag || slice->sao_chroma_flag ||
!slice->deblocking_filter_disabled_flag))
READ_UINT8 (&nr, slice->loop_filter_across_slices_enabled_flag, 1);
}
if (pps->tiles_enabled_flag || pps->entropy_coding_sync_enabled_flag) {
guint32 offset_max;
if (!pps->tiles_enabled_flag && pps->entropy_coding_sync_enabled_flag)
offset_max = pps->PicHeightInCtbsY - 1;
else if (pps->tiles_enabled_flag && !pps->entropy_coding_sync_enabled_flag)
offset_max =
(pps->num_tile_columns_minus1 + 1) * (pps->num_tile_rows_minus1 + 1) -
1;
else
offset_max =
(pps->num_tile_columns_minus1 + 1) * pps->PicHeightInCtbsY - 1;
READ_UE_MAX (&nr, slice->num_entry_point_offsets, offset_max);
if (slice->num_entry_point_offsets > 0) {
READ_UE_MAX (&nr, slice->offset_len_minus1, 31);
slice->entry_point_offset_minus1 =
g_new0 (guint32, slice->num_entry_point_offsets);
for (i = 0; i < slice->num_entry_point_offsets; i++)
READ_UINT32 (&nr, slice->entry_point_offset_minus1[i],
(slice->offset_len_minus1 + 1));
}
}
if (pps->slice_segment_header_extension_present_flag) {
guint16 slice_segment_header_extension_length;
READ_UE_MAX (&nr, slice_segment_header_extension_length, 256);
for (i = 0; i < slice_segment_header_extension_length; i++)
if (!nal_reader_skip (&nr, 8))
goto error;
}
/* Skip the byte alignment bits */
if (!nal_reader_skip (&nr, 1))
goto error;
while (!nal_reader_is_byte_aligned (&nr)) {
if (!nal_reader_skip (&nr, 1))
goto error;
}
slice->header_size = nal_reader_get_pos (&nr);
slice->n_emulation_prevention_bytes = nal_reader_get_epb_count (&nr);
return GST_H265_PARSER_OK;
error:
GST_WARNING ("error parsing \"Slice header\"");
gst_h265_slice_hdr_free (slice);
return GST_H265_PARSER_ERROR;
}
static gboolean
nal_reader_has_more_data_in_payload (NalReader * nr,
guint32 payload_start_pos_bit, guint32 payloadSize)
{
if (nal_reader_is_byte_aligned (nr) &&
(nal_reader_get_pos (nr) >= (payload_start_pos_bit + 8 * payloadSize)))
return FALSE;
return TRUE;
}
static GstH265ParserResult
gst_h265_parser_parse_sei_message (GstH265Parser * parser,
guint8 nal_type, NalReader * nr, GstH265SEIMessage * sei)
{
guint32 payloadSize;
guint8 payload_type_byte, payload_size_byte;
guint remaining, payload_size;
guint32 payload_start_pos_bit;
GstH265ParserResult res = GST_H265_PARSER_OK;
GST_DEBUG ("parsing \"Sei message\"");
memset (sei, 0, sizeof (*sei));
do {
READ_UINT8 (nr, payload_type_byte, 8);
sei->payloadType += payload_type_byte;
} while (payload_type_byte == 0xff);
payloadSize = 0;
do {
READ_UINT8 (nr, payload_size_byte, 8);
payloadSize += payload_size_byte;
}
while (payload_size_byte == 0xff);
remaining = nal_reader_get_remaining (nr);
payload_size = payloadSize * 8 < remaining ? payloadSize * 8 : remaining;
payload_start_pos_bit = nal_reader_get_pos (nr);
GST_DEBUG
("SEI message received: payloadType %u, payloadSize = %u bits",
sei->payloadType, payload_size);
if (nal_type == GST_H265_NAL_PREFIX_SEI) {
switch (sei->payloadType) {
case GST_H265_SEI_BUF_PERIOD:
/* size not set; might depend on emulation_prevention_three_byte */
res = gst_h265_parser_parse_buffering_period (parser,
&sei->payload.buffering_period, nr);
break;
case GST_H265_SEI_PIC_TIMING:
/* size not set; might depend on emulation_prevention_three_byte */
res = gst_h265_parser_parse_pic_timing (parser,
&sei->payload.pic_timing, nr);
break;
case GST_H265_SEI_REGISTERED_USER_DATA:
res = gst_h265_parser_parse_registered_user_data (parser,
&sei->payload.registered_user_data, nr, payload_size >> 3);
break;
case GST_H265_SEI_USER_DATA_UNREGISTERED:
res = gst_h265_parser_parse_user_data_unregistered (parser,
&sei->payload.user_data_unregistered, nr, payload_size >> 3);
break;
case GST_H265_SEI_RECOVERY_POINT:
res = gst_h265_parser_parse_recovery_point (parser,
&sei->payload.recovery_point, nr);
break;
case GST_H265_SEI_TIME_CODE:
res = gst_h265_parser_parse_time_code (parser,
&sei->payload.time_code, nr);
break;
case GST_H265_SEI_MASTERING_DISPLAY_COLOUR_VOLUME:
res = gst_h265_parser_parse_mastering_display_colour_volume (parser,
&sei->payload.mastering_display_colour_volume, nr);
break;
case GST_H265_SEI_CONTENT_LIGHT_LEVEL:
res = gst_h265_parser_parse_content_light_level_info (parser,
&sei->payload.content_light_level, nr);
break;
default:
/* Just consume payloadSize bytes, which does not account for
emulation prevention bytes */
if (!nal_reader_skip_long (nr, payload_size))
goto error;
res = GST_H265_PARSER_OK;
break;
}
} else if (nal_type == GST_H265_NAL_SUFFIX_SEI) {
switch (sei->payloadType) {
default:
/* Just consume payloadSize bytes, which does not account for
emulation prevention bytes */
if (!nal_reader_skip_long (nr, payload_size))
goto error;
res = GST_H265_PARSER_OK;
break;
}
}
/* Not parsing the reserved_payload_extension, but it shouldn't be
* an issue because of 1: There shall not be any reserved_payload_extension
* present in bitstreams conforming to the specification.2. Even though
* it is present, the size will be less than total PayloadSize since the
* size of reserved_payload_extension is supposed to be
* 8 * payloadSize - nEarlierBits - nPayloadZeroBits -1 which means the
* the current implementation will still skip all unnecessary bits correctly.
* In theory, we can have a more optimized implementation by skipping the
* data left in PayLoadSize without out individually checking for each bits,
* since the totoal size will be always less than payloadSize*/
while (nal_reader_has_more_data_in_payload (nr, payload_start_pos_bit,
payloadSize)) {
/* Skip the byte alignment bits */
if (!nal_reader_skip (nr, 1))
goto error;
while (!nal_reader_is_byte_aligned (nr)) {
if (!nal_reader_skip (nr, 1))
goto error;
}
}
return res;
error:
GST_WARNING ("error parsing \"Sei message\"");
return GST_H265_PARSER_ERROR;
}
/**
* gst_h265_slice_hdr_copy:
* @dst_slice: The destination #GstH265SliceHdr to copy into
* @src_slice: The source #GstH265SliceHdr to copy from
*
* Copies @src_slice into @dst_slice
*
* Returns: %TRUE if everything went fine, %FALSE otherwise
*/
gboolean
gst_h265_slice_hdr_copy (GstH265SliceHdr * dst_slice,
const GstH265SliceHdr * src_slice)
{
guint i;
g_return_val_if_fail (dst_slice != NULL, FALSE);
g_return_val_if_fail (src_slice != NULL, FALSE);
gst_h265_slice_hdr_free (dst_slice);
*dst_slice = *src_slice;
if (dst_slice->num_entry_point_offsets > 0) {
dst_slice->entry_point_offset_minus1 =
g_new0 (guint32, dst_slice->num_entry_point_offsets);
for (i = 0; i < dst_slice->num_entry_point_offsets; i++)
dst_slice->entry_point_offset_minus1[i] =
src_slice->entry_point_offset_minus1[i];
}
return TRUE;
}
/**
* gst_h265_slice_hdr_free:
* slice_hdr: The #GstH265SliceHdr to free
*
* Frees @slice_hdr fields.
*/
void
gst_h265_slice_hdr_free (GstH265SliceHdr * slice_hdr)
{
g_return_if_fail (slice_hdr != NULL);
if (slice_hdr->num_entry_point_offsets > 0)
g_free (slice_hdr->entry_point_offset_minus1);
slice_hdr->entry_point_offset_minus1 = 0;
}
/**
* gst_h265_sei_copy:
* @dst_sei: The destination #GstH265SEIMessage to copy into
* @src_sei: The source #GstH265SEIMessage to copy from
*
* Copies @src_sei into @dst_sei
*
* Returns: %TRUE if everything went fine, %FALSE otherwise
*/
gboolean
gst_h265_sei_copy (GstH265SEIMessage * dst_sei,
const GstH265SEIMessage * src_sei)
{
guint i;
g_return_val_if_fail (dst_sei != NULL, FALSE);
g_return_val_if_fail (src_sei != NULL, FALSE);
gst_h265_sei_free (dst_sei);
*dst_sei = *src_sei;
if (dst_sei->payloadType == GST_H265_SEI_PIC_TIMING) {
GstH265PicTiming *dst_pic_timing = &dst_sei->payload.pic_timing;
const GstH265PicTiming *src_pic_timing = &src_sei->payload.pic_timing;
if (dst_pic_timing->num_decoding_units_minus1 > 0) {
dst_pic_timing->num_nalus_in_du_minus1 =
g_new0 (guint32, (dst_pic_timing->num_decoding_units_minus1 + 1));
dst_pic_timing->du_cpb_removal_delay_increment_minus1 =
g_new0 (guint8, (dst_pic_timing->num_decoding_units_minus1 + 1));
for (i = 0; i <= dst_pic_timing->num_decoding_units_minus1; i++) {
dst_pic_timing->num_nalus_in_du_minus1[i] =
src_pic_timing->num_nalus_in_du_minus1[i];
dst_pic_timing->du_cpb_removal_delay_increment_minus1[i] =
src_pic_timing->du_cpb_removal_delay_increment_minus1[i];
}
}
} else if (dst_sei->payloadType == GST_H265_SEI_REGISTERED_USER_DATA) {
GstH265RegisteredUserData *dst_rud = &dst_sei->payload.registered_user_data;
const GstH265RegisteredUserData *src_rud =
&src_sei->payload.registered_user_data;
if (src_rud->size) {
dst_rud->data = g_malloc (src_rud->size);
memcpy ((guint8 *) dst_rud->data, src_rud->data, src_rud->size);
}
} else if (dst_sei->payloadType == GST_H265_SEI_USER_DATA_UNREGISTERED) {
GstH265UserDataUnregistered *dst_udu =
&dst_sei->payload.user_data_unregistered;
const GstH265UserDataUnregistered *src_udu =
&src_sei->payload.user_data_unregistered;
if (src_udu->size) {
dst_udu->data = g_malloc (src_udu->size);
memcpy ((guint8 *) dst_udu->data, src_udu->data, src_udu->size);
}
}
return TRUE;
}
/**
* gst_h265_sei_free:
* sei: The #GstH265SEIMessage to free
*
* Frees @sei fields.
*/
void
gst_h265_sei_free (GstH265SEIMessage * sei)
{
g_return_if_fail (sei != NULL);
if (sei->payloadType == GST_H265_SEI_PIC_TIMING) {
GstH265PicTiming *pic_timing = &sei->payload.pic_timing;
if (pic_timing->num_decoding_units_minus1 > 0) {
g_free (pic_timing->num_nalus_in_du_minus1);
g_free (pic_timing->du_cpb_removal_delay_increment_minus1);
}
pic_timing->num_nalus_in_du_minus1 = 0;
pic_timing->du_cpb_removal_delay_increment_minus1 = 0;
} else if (sei->payloadType == GST_H265_SEI_REGISTERED_USER_DATA) {
GstH265RegisteredUserData *rud = &sei->payload.registered_user_data;
g_free ((guint8 *) rud->data);
rud->data = NULL;
} else if (sei->payloadType == GST_H265_SEI_USER_DATA_UNREGISTERED) {
GstH265UserDataUnregistered *udu = &sei->payload.user_data_unregistered;
g_free ((guint8 *) udu->data);
udu->data = NULL;
}
}
/**
* gst_h265_parser_parse_sei:
* @nalparser: a #GstH265Parser
* @nalu: The `GST_H265_NAL_*_SEI` #GstH265NalUnit to parse
* @messages: The GArray of #GstH265SEIMessage to fill. The caller must free it when done.
*
* Parses @data, create and fills the @messages array.
*
* Returns: a #GstH265ParserResult
*/
GstH265ParserResult
gst_h265_parser_parse_sei (GstH265Parser * nalparser, GstH265NalUnit * nalu,
GArray ** messages)
{
NalReader nr;
GstH265SEIMessage sei;
GstH265ParserResult res;
GST_DEBUG ("parsing SEI nal");
nal_reader_init (&nr, nalu->data + nalu->offset + nalu->header_bytes,
nalu->size - nalu->header_bytes);
*messages = g_array_new (FALSE, FALSE, sizeof (GstH265SEIMessage));
g_array_set_clear_func (*messages, (GDestroyNotify) gst_h265_sei_free);
do {
res = gst_h265_parser_parse_sei_message (nalparser, nalu->type, &nr, &sei);
if (res == GST_H265_PARSER_OK)
g_array_append_val (*messages, sei);
else
break;
} while (nal_reader_has_more_data (&nr));
return res;
}
/**
* gst_h265_parser_update_vps:
* @parser: a #GstH265Parser
* @vps: (transfer none): a #GstH265VPS.
*
* Replace internal Video Parameter Set struct corresponding to id of @vps
* with @vps. @nalparser will mark @vps as last parsed vps.
*
* Returns: a #GstH265ParserResult
*
* Since: 1.18
*/
GstH265ParserResult
gst_h265_parser_update_vps (GstH265Parser * parser, GstH265VPS * vps)
{
g_return_val_if_fail (parser != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (vps != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (vps->id < GST_H265_MAX_VPS_COUNT,
GST_H265_PARSER_ERROR);
if (!vps->valid) {
GST_WARNING ("Cannot update with invalid VPS");
return GST_H265_PARSER_ERROR;
}
GST_DEBUG ("Updating video parameter set with id: %d", vps->id);
parser->vps[vps->id] = *vps;
parser->last_vps = &parser->vps[vps->id];
return GST_H265_PARSER_OK;
}
/**
* gst_h265_parser_update_sps:
* @parser: a #GstH265Parser
* @sps: (transfer none): a #GstH265SPS.
*
* Replace internal Sequence Parameter Set struct corresponding to id of @sps
* with @sps. @nalparser will mark @sps as last parsed sps.
*
* Returns: a #GstH265ParserResult
*
* Since: 1.18
*/
GstH265ParserResult
gst_h265_parser_update_sps (GstH265Parser * parser, GstH265SPS * sps)
{
g_return_val_if_fail (parser != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (sps != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (sps->id < GST_H265_MAX_SPS_COUNT,
GST_H265_PARSER_ERROR);
if (!sps->valid) {
GST_WARNING ("Cannot update with invalid SPS");
return GST_H265_PARSER_ERROR;
}
if (sps->vps) {
GstH265VPS *vps = gst_h265_parser_get_vps (parser, sps->vps->id);
if (!vps || vps != sps->vps) {
GST_WARNING ("Linked VPS is not identical to internal VPS");
return GST_H265_PARSER_BROKEN_LINK;
}
}
GST_DEBUG ("Updating sequence parameter set with id: %d", sps->id);
parser->sps[sps->id] = *sps;
parser->last_sps = &parser->sps[sps->id];
return GST_H265_PARSER_OK;
}
/**
* gst_h265_parser_update_pps:
* @parser: a #GstH265Parser
* @pps: (transfer none): a #GstH265PPS.
*
* Replace internal Sequence Parameter Set struct corresponding to id of @pps
* with @pps. @nalparser will mark @pps as last parsed sps.
*
* Returns: a #GstH265ParserResult
*
* Since: 1.18
*/
GstH265ParserResult
gst_h265_parser_update_pps (GstH265Parser * parser, GstH265PPS * pps)
{
GstH265SPS *sps;
g_return_val_if_fail (parser != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (pps != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (pps->id < GST_H265_MAX_PPS_COUNT,
GST_H265_PARSER_ERROR);
if (!pps->valid) {
GST_WARNING ("Cannot update with invalid PPS");
return GST_H265_PARSER_ERROR;
}
if (!pps->sps) {
GST_WARNING ("No linked SPS struct");
return GST_H265_PARSER_BROKEN_LINK;
}
sps = gst_h265_parser_get_sps (parser, pps->sps->id);
if (!sps || sps != pps->sps) {
GST_WARNING ("Linked SPS is not identical to internal SPS");
return GST_H265_PARSER_BROKEN_LINK;
}
GST_DEBUG ("Updating picture parameter set with id: %d", pps->id);
parser->pps[pps->id] = *pps;
parser->last_pps = &parser->pps[pps->id];
return GST_H265_PARSER_OK;
}
/**
* gst_h265_quant_matrix_4x4_get_zigzag_from_raster:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from raster scan order to
* zigzag scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_4x4_get_zigzag_from_raster (guint8 out_quant[16],
const guint8 quant[16])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 16; i++)
out_quant[i] = quant[zigzag_4x4[i]];
}
/**
* gst_h265_quant_matrix_4x4_get_raster_from_zigzag:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from zigzag scan order to
* raster scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_4x4_get_raster_from_zigzag (guint8 out_quant[16],
const guint8 quant[16])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 16; i++)
out_quant[zigzag_4x4[i]] = quant[i];
}
/**
* gst_h265_quant_matrix_8x8_get_zigzag_from_raster:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from raster scan order to
* zigzag scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_8x8_get_zigzag_from_raster (guint8 out_quant[64],
const guint8 quant[64])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 64; i++)
out_quant[i] = quant[zigzag_8x8[i]];
}
/**
* gst_h265_quant_matrix_8x8_get_raster_from_zigzag:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from zigzag scan order to
* raster scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_8x8_get_raster_from_zigzag (guint8 out_quant[64],
const guint8 quant[64])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 64; i++)
out_quant[zigzag_8x8[i]] = quant[i];
}
/**
* gst_h265_quant_matrix_4x4_get_uprightdiagonal_from_raster:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from raster scan order to
* uprightdiagonal scan order and store the resulting factors
* into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_4x4_get_uprightdiagonal_from_raster (guint8 out_quant[16],
const guint8 quant[16])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 16; i++)
out_quant[i] = quant[uprightdiagonal_4x4[i]];
}
/**
* gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from uprightdiagonal scan order to
* raster scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal (guint8 out_quant[16],
const guint8 quant[16])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 16; i++)
out_quant[uprightdiagonal_4x4[i]] = quant[i];
}
/**
* gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from raster scan order to
* uprightdiagonal scan order and store the resulting factors
* into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster (guint8 out_quant[64],
const guint8 quant[64])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 64; i++)
out_quant[i] = quant[uprightdiagonal_8x8[i]];
}
/**
* gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal:
* @out_quant: (out): The resulting quantization matrix
* @quant: The source quantization matrix
*
* Converts quantization matrix @quant from uprightdiagonal scan order to
* raster scan order and store the resulting factors into @out_quant.
*
* Note: it is an error to pass the same table in both @quant and
* @out_quant arguments.
*
* Since: 1.6
*/
void
gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal (guint8 out_quant[64],
const guint8 quant[64])
{
guint i;
g_return_if_fail (out_quant != quant);
for (i = 0; i < 64; i++)
out_quant[uprightdiagonal_8x8[i]] = quant[i];
}
typedef struct
{
GstH265Profile profile;
guint8 max_14bit_constraint_flag;
guint8 max_12bit_constraint_flag;
guint8 max_10bit_constraint_flag;
guint8 max_8bit_constraint_flag;
guint8 max_422chroma_constraint_flag;
guint8 max_420chroma_constraint_flag;
guint8 max_monochrome_constraint_flag;
guint8 intra_constraint_flag;
guint8 one_picture_only_constraint_flag;
gboolean lower_bit_rate_constraint_flag_set;
/* Tie breaker if more than one profiles are matching */
guint priority;
} H265ExtensionProfile;
typedef struct
{
H265ExtensionProfile *profile;
guint extra_constraints;
} H265ExtensionProfileMatch;
static gint
sort_fre_profile_matches (H265ExtensionProfileMatch * a,
H265ExtensionProfileMatch * b)
{
gint d;
d = a->extra_constraints - b->extra_constraints;
if (d)
return d;
return b->profile->priority - a->profile->priority;
}
static GstH265Profile
get_extension_profile (H265ExtensionProfile * profiles, guint num,
const GstH265ProfileTierLevel * ptl)
{
GstH265Profile result = GST_H265_PROFILE_INVALID;
guint i;
GList *matches = NULL;
for (i = 0; i < num; i++) {
H265ExtensionProfile p = profiles[i];
guint extra_constraints = 0;
H265ExtensionProfileMatch *m;
/* Filter out all the profiles having constraints not satisfied by @ptl.
* Then pick the one having the least extra constraints. This allow us
* to match the closest profile if bitstream contains not standard
* constraints. */
if (p.max_14bit_constraint_flag != ptl->max_14bit_constraint_flag) {
if (p.max_14bit_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_12bit_constraint_flag != ptl->max_12bit_constraint_flag) {
if (p.max_12bit_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_10bit_constraint_flag != ptl->max_10bit_constraint_flag) {
if (p.max_10bit_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_8bit_constraint_flag != ptl->max_8bit_constraint_flag) {
if (p.max_8bit_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_422chroma_constraint_flag != ptl->max_422chroma_constraint_flag) {
if (p.max_422chroma_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_420chroma_constraint_flag != ptl->max_420chroma_constraint_flag) {
if (p.max_420chroma_constraint_flag)
continue;
extra_constraints++;
}
if (p.max_monochrome_constraint_flag != ptl->max_monochrome_constraint_flag) {
if (p.max_monochrome_constraint_flag)
continue;
extra_constraints++;
}
if (p.intra_constraint_flag != ptl->intra_constraint_flag) {
if (p.intra_constraint_flag)
continue;
extra_constraints++;
}
if (p.one_picture_only_constraint_flag !=
ptl->one_picture_only_constraint_flag) {
if (p.one_picture_only_constraint_flag)
continue;
extra_constraints++;
}
if (p.lower_bit_rate_constraint_flag_set
&& !ptl->lower_bit_rate_constraint_flag)
continue;
if (extra_constraints == 0) {
result = p.profile;
break;
}
m = g_new0 (H265ExtensionProfileMatch, 1);
m->profile = &profiles[i];
m->extra_constraints = extra_constraints;
matches = g_list_prepend (matches, m);
}
if (result == GST_H265_PROFILE_INVALID && matches) {
H265ExtensionProfileMatch *m;
matches = g_list_sort (matches, (GCompareFunc) sort_fre_profile_matches);
m = matches->data;
result = m->profile->profile;
GST_INFO ("Fail to find the profile matches all extensions bits,"
" select the closest %s with %d bit diff",
gst_h265_profile_to_string (result), m->extra_constraints);
}
if (matches)
g_list_free_full (matches, g_free);
return result;
}
static GstH265Profile
get_format_range_extension_profile (const GstH265ProfileTierLevel * ptl)
{
/* Profile idc: GST_H265_PROFILE_IDC_FORMAT_RANGE_EXTENSION
See Table A.2 for the definition of those formats */
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_MONOCHROME,
0, 1, 1, 1, 1, 1, 1, 0, 0, TRUE, 0},
{GST_H265_PROFILE_MONOCHROME_10,
0, 1, 1, 0, 1, 1, 1, 0, 0, TRUE, 1},
{GST_H265_PROFILE_MONOCHROME_12,
0, 1, 0, 0, 1, 1, 1, 0, 0, TRUE, 2},
{GST_H265_PROFILE_MONOCHROME_16,
0, 0, 0, 0, 1, 1, 1, 0, 0, TRUE, 3},
{GST_H265_PROFILE_MAIN_12,
0, 1, 0, 0, 1, 1, 0, 0, 0, TRUE, 4},
{GST_H265_PROFILE_MAIN_422_10,
0, 1, 1, 0, 1, 0, 0, 0, 0, TRUE, 5},
{GST_H265_PROFILE_MAIN_422_12,
0, 1, 0, 0, 1, 0, 0, 0, 0, TRUE, 6},
{GST_H265_PROFILE_MAIN_444,
0, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 7},
{GST_H265_PROFILE_MAIN_444_10,
0, 1, 1, 0, 0, 0, 0, 0, 0, TRUE, 8},
{GST_H265_PROFILE_MAIN_444_12,
0, 1, 0, 0, 0, 0, 0, 0, 0, TRUE, 9},
{GST_H265_PROFILE_MAIN_INTRA,
0, 1, 1, 1, 1, 1, 0, 1, 0, FALSE, 10},
{GST_H265_PROFILE_MAIN_10_INTRA,
0, 1, 1, 0, 1, 1, 0, 1, 0, FALSE, 11},
{GST_H265_PROFILE_MAIN_12_INTRA,
0, 1, 0, 0, 1, 1, 0, 1, 0, FALSE, 12},
{GST_H265_PROFILE_MAIN_422_10_INTRA,
0, 1, 1, 0, 1, 0, 0, 1, 0, FALSE, 13},
{GST_H265_PROFILE_MAIN_422_12_INTRA,
0, 1, 0, 0, 1, 0, 0, 1, 0, FALSE, 14},
{GST_H265_PROFILE_MAIN_444_INTRA,
0, 1, 1, 1, 0, 0, 0, 1, 0, FALSE, 15},
{GST_H265_PROFILE_MAIN_444_10_INTRA,
0, 1, 1, 0, 0, 0, 0, 1, 0, FALSE, 16},
{GST_H265_PROFILE_MAIN_444_12_INTRA,
0, 1, 0, 0, 0, 0, 0, 1, 0, FALSE, 17},
{GST_H265_PROFILE_MAIN_444_16_INTRA,
0, 0, 0, 0, 0, 0, 0, 1, 0, FALSE, 18},
{GST_H265_PROFILE_MAIN_444_STILL_PICTURE,
0, 1, 1, 1, 0, 0, 0, 1, 1, FALSE, 19},
{GST_H265_PROFILE_MAIN_444_16_STILL_PICTURE,
0, 0, 0, 0, 0, 0, 0, 1, 1, FALSE, 20},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_3d_profile (const GstH265ProfileTierLevel * ptl)
{
/* profile idc: GST_H265_PROFILE_IDC_3D_MAIN */
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_3D_MAIN,
0, 1, 1, 1, 1, 1, 0, 0, 0, TRUE, 0},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_multiview_profile (const GstH265ProfileTierLevel * ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_MULTIVIEW_MAIN,
0, 1, 1, 1, 1, 1, 0, 0, 0, TRUE, 0},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_scalable_profile (const GstH265ProfileTierLevel * ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_SCALABLE_MAIN,
0, 1, 1, 1, 1, 1, 0, 0, 0, TRUE, 0},
{GST_H265_PROFILE_SCALABLE_MAIN_10,
0, 1, 1, 0, 1, 1, 0, 0, 0, TRUE, 1},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_high_throughput_profile (const GstH265ProfileTierLevel * ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_HIGH_THROUGHPUT_444,
1, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 0},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_10,
1, 1, 1, 0, 0, 0, 0, 0, 0, TRUE, 1},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_14,
1, 0, 0, 0, 0, 0, 0, 0, 0, TRUE, 2},
{GST_H265_PROFILE_HIGH_THROUGHPUT_444_16_INTRA,
0, 0, 0, 0, 0, 0, 0, 1, 0, FALSE, 3},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_screen_content_coding_extensions_profile (const GstH265ProfileTierLevel *
ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN,
1, 1, 1, 1, 1, 1, 0, 0, 0, TRUE, 0},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_10,
1, 1, 1, 0, 1, 1, 0, 0, 0, TRUE, 1},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_444,
1, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 2},
{GST_H265_PROFILE_SCREEN_EXTENDED_MAIN_444_10,
1, 1, 1, 0, 0, 0, 0, 0, 0, TRUE, 3},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_scalable_format_range_extensions_profile (const GstH265ProfileTierLevel *
ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_SCALABLE_MONOCHROME,
1, 1, 1, 1, 1, 1, 1, 0, 0, TRUE, 0},
{GST_H265_PROFILE_SCALABLE_MONOCHROME_12,
1, 1, 0, 0, 1, 1, 1, 0, 0, TRUE, 1},
{GST_H265_PROFILE_SCALABLE_MONOCHROME_16,
0, 0, 0, 0, 1, 1, 1, 0, 0, TRUE, 2},
{GST_H265_PROFILE_SCALABLE_MAIN_444,
1, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 3},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static GstH265Profile
get_screen_content_coding_extensions_high_throughput_profile
(const GstH265ProfileTierLevel * ptl)
{
static H265ExtensionProfile profiles[] = {
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444,
1, 1, 1, 1, 0, 0, 0, 0, 0, TRUE, 0},
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444_10,
1, 1, 1, 0, 0, 0, 0, 0, 0, TRUE, 1},
{GST_H265_PROFILE_SCREEN_EXTENDED_HIGH_THROUGHPUT_444_14,
1, 0, 0, 0, 0, 0, 0, 0, 0, TRUE, 2},
};
return get_extension_profile (profiles, G_N_ELEMENTS (profiles), ptl);
}
static inline void
append_profile (GstH265Profile profiles[GST_H265_PROFILE_MAX], guint * idx,
GstH265Profile profile)
{
if (profile == GST_H265_PROFILE_INVALID)
return;
profiles[*idx] = profile;
(*idx)++;
}
/* *INDENT-OFF* */
struct h265_profiles_map
{
GstH265ProfileIDC profile_idc;
GstH265Profile (*get_profile) (const GstH265ProfileTierLevel *);
GstH265Profile profile;
};
/* *INDENT-ON* */
static const struct h265_profiles_map profiles_map[] = {
/* keep profile check in asc order */
{GST_H265_PROFILE_IDC_MAIN, NULL, GST_H265_PROFILE_MAIN},
{GST_H265_PROFILE_IDC_MAIN_10, NULL, GST_H265_PROFILE_MAIN_10},
{GST_H265_PROFILE_IDC_MAIN_STILL_PICTURE, NULL,
GST_H265_PROFILE_MAIN_STILL_PICTURE},
{GST_H265_PROFILE_IDC_FORMAT_RANGE_EXTENSION,
get_format_range_extension_profile, GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_HIGH_THROUGHPUT, get_high_throughput_profile,
GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_MULTIVIEW_MAIN, get_multiview_profile,
GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_SCALABLE_MAIN, get_scalable_profile,
GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_3D_MAIN, get_3d_profile, GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_SCREEN_CONTENT_CODING,
get_screen_content_coding_extensions_profile,
GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_SCALABLE_FORMAT_RANGE_EXTENSION,
get_scalable_format_range_extensions_profile,
GST_H265_PROFILE_INVALID},
{GST_H265_PROFILE_IDC_HIGH_THROUGHPUT_SCREEN_CONTENT_CODING_EXTENSION,
get_screen_content_coding_extensions_high_throughput_profile,
GST_H265_PROFILE_INVALID},
};
static void
gst_h265_profile_tier_level_get_profiles (const GstH265ProfileTierLevel * ptl,
GstH265Profile profiles[GST_H265_PROFILE_MAX], guint * len)
{
guint i = 0, j;
/* First add profile idc */
for (j = 0; j < G_N_ELEMENTS (profiles_map); j++) {
if (ptl->profile_idc == profiles_map[j].profile_idc) {
if (profiles_map[j].get_profile)
append_profile (profiles, &i, profiles_map[j].get_profile (ptl));
else
profiles[i++] = profiles_map[j].profile;
break;
}
}
/* Later add compatibility flags */
for (j = 0; j < G_N_ELEMENTS (profiles_map); j++) {
if (i > 0 && ptl->profile_idc == profiles_map[j].profile_idc)
continue;
if (ptl->profile_compatibility_flag[profiles_map[j].profile_idc]) {
if (profiles_map[j].get_profile)
append_profile (profiles, &i, profiles_map[j].get_profile (ptl));
else
profiles[i++] = profiles_map[j].profile;
}
}
*len = i;
}
/**
* gst_h265_profile_tier_level_get_profile:
* @ptl: a #GstH265ProfileTierLevel
*
* Return the H265 profile defined in @ptl.
*
* Returns: a #GstH265Profile
* Since: 1.14
*/
GstH265Profile
gst_h265_profile_tier_level_get_profile (const GstH265ProfileTierLevel * ptl)
{
guint len = 0;
GstH265Profile profiles[GST_H265_PROFILE_MAX] = { GST_H265_PROFILE_INVALID, };
gst_h265_profile_tier_level_get_profiles (ptl, profiles, &len);
if (len > 0)
return profiles[0];
return GST_H265_PROFILE_INVALID;
}
/**
* gst_h265_profile_to_string:
* @profile: a #GstH265Profile
*
* Returns the descriptive name for the #GstH265Profile.
*
* Returns: (nullable): the name for @profile or %NULL on error
*
* Since: 1.18
*/
const gchar *
gst_h265_profile_to_string (GstH265Profile profile)
{
guint i;
if (profile == GST_H265_PROFILE_INVALID || profile == GST_H265_PROFILE_MAX)
return NULL;
for (i = 0; i < G_N_ELEMENTS (h265_profiles); i++) {
if (profile == h265_profiles[i].profile)
return h265_profiles[i].name;
}
return NULL;
}
/**
* gst_h265_profile_from_string:
* @string: the descriptive name for #GstH265Profile
*
* Returns a #GstH265Profile for the @string.
*
* Returns: the #GstH265Profile of @string or %GST_H265_PROFILE_INVALID on error
*
* Since: 1.18
*/
GstH265Profile
gst_h265_profile_from_string (const gchar * string)
{
guint i;
if (string == NULL)
return GST_H265_PROFILE_INVALID;
for (i = 0; i < G_N_ELEMENTS (h265_profiles); i++) {
if (g_strcmp0 (string, h265_profiles[i].name) == 0) {
return h265_profiles[i].profile;
}
}
return GST_H265_PROFILE_INVALID;
}
static gboolean
gst_h265_write_sei_registered_user_data (NalWriter * nw,
GstH265RegisteredUserData * rud)
{
WRITE_UINT8 (nw, rud->country_code, 8);
if (rud->country_code == 0xff)
WRITE_UINT8 (nw, rud->country_code_extension, 8);
WRITE_BYTES (nw, rud->data, rud->size);
return TRUE;
error:
return FALSE;
}
static gboolean
gst_h265_write_sei_user_data_unregistered (NalWriter * nw,
GstH265UserDataUnregistered * udu)
{
WRITE_BYTES (nw, udu->uuid, 16);
WRITE_BYTES (nw, udu->data, udu->size);
return TRUE;
error:
return FALSE;
}
static gboolean
gst_h265_write_sei_time_code (NalWriter * nw, GstH265TimeCode * tc)
{
gint i;
WRITE_UINT8 (nw, tc->num_clock_ts, 2);
for (i = 0; i < tc->num_clock_ts; i++) {
WRITE_UINT8 (nw, tc->clock_timestamp_flag[i], 1);
if (tc->clock_timestamp_flag[i]) {
WRITE_UINT8 (nw, tc->units_field_based_flag[i], 1);
WRITE_UINT8 (nw, tc->counting_type[i], 5);
WRITE_UINT8 (nw, tc->full_timestamp_flag[i], 1);
WRITE_UINT8 (nw, tc->discontinuity_flag[i], 1);
WRITE_UINT8 (nw, tc->cnt_dropped_flag[i], 1);
WRITE_UINT16 (nw, tc->n_frames[i], 9);
if (tc->full_timestamp_flag[i]) {
WRITE_UINT8 (nw, tc->seconds_value[i], 6);
WRITE_UINT8 (nw, tc->minutes_value[i], 6);
WRITE_UINT8 (nw, tc->hours_value[i], 5);
} else {
WRITE_UINT8 (nw, tc->seconds_flag[i], 1);
if (tc->seconds_flag[i]) {
WRITE_UINT8 (nw, tc->seconds_value[i], 6);
WRITE_UINT8 (nw, tc->minutes_flag[i], 1);
if (tc->minutes_flag[i]) {
WRITE_UINT8 (nw, tc->minutes_value[i], 6);
WRITE_UINT8 (nw, tc->hours_flag[i], 1);
if (tc->hours_flag[i]) {
WRITE_UINT8 (nw, tc->hours_value[i], 5);
}
}
}
}
}
WRITE_UINT8 (nw, tc->time_offset_length[i], 5);
if (tc->time_offset_length[i] > 0)
WRITE_UINT8 (nw, tc->time_offset_value[i], tc->time_offset_length[i]);
}
return TRUE;
error:
return FALSE;
}
static gboolean
gst_h265_write_sei_mastering_display_colour_volume (NalWriter * nw,
GstH265MasteringDisplayColourVolume * mdcv)
{
gint i;
for (i = 0; i < 3; i++) {
WRITE_UINT16 (nw, mdcv->display_primaries_x[i], 16);
WRITE_UINT16 (nw, mdcv->display_primaries_y[i], 16);
}
WRITE_UINT16 (nw, mdcv->white_point_x, 16);
WRITE_UINT16 (nw, mdcv->white_point_y, 16);
WRITE_UINT32 (nw, mdcv->max_display_mastering_luminance, 32);
WRITE_UINT32 (nw, mdcv->min_display_mastering_luminance, 32);
return TRUE;
error:
return FALSE;
}
static gboolean
gst_h265_write_sei_content_light_level_info (NalWriter * nw,
GstH265ContentLightLevel * cll)
{
WRITE_UINT16 (nw, cll->max_content_light_level, 16);
WRITE_UINT16 (nw, cll->max_pic_average_light_level, 16);
return TRUE;
error:
return FALSE;
}
static GstMemory *
gst_h265_create_sei_memory_internal (guint8 layer_id, guint8 temporal_id_plus1,
guint nal_prefix_size, gboolean packetized, GArray * messages)
{
NalWriter nw;
gint i;
gboolean have_written_data = FALSE;
nal_writer_init (&nw, nal_prefix_size, packetized);
if (messages->len == 0)
goto error;
GST_DEBUG ("Create SEI nal from array, len: %d", messages->len);
/* nal header */
/* forbidden_zero_bit */
WRITE_UINT8 (&nw, 0, 1);
/* nal_unit_type */
WRITE_UINT8 (&nw, GST_H265_NAL_PREFIX_SEI, 6);
/* nuh_layer_id */
WRITE_UINT8 (&nw, layer_id, 6);
/* nuh_temporal_id_plus1 */
WRITE_UINT8 (&nw, temporal_id_plus1, 3);
for (i = 0; i < messages->len; i++) {
GstH265SEIMessage *msg = &g_array_index (messages, GstH265SEIMessage, i);
guint32 payload_size_data = 0;
guint32 payload_size_in_bits = 0;
guint32 payload_type_data = msg->payloadType;
gboolean need_align = FALSE;
switch (payload_type_data) {
case GST_H265_SEI_REGISTERED_USER_DATA:{
GstH265RegisteredUserData *rud = &msg->payload.registered_user_data;
/* itu_t_t35_country_code: 8 bits */
payload_size_data = 1;
if (rud->country_code == 0xff) {
/* itu_t_t35_country_code_extension_byte */
payload_size_data++;
}
payload_size_data += rud->size;
break;
}
case GST_H265_SEI_USER_DATA_UNREGISTERED:{
GstH265UserDataUnregistered *udu = &msg->payload.user_data_unregistered;
payload_size_data = 16 + udu->size;
break;
}
case GST_H265_SEI_TIME_CODE:{
gint j;
GstH265TimeCode *tc = &msg->payload.time_code;
/* num_clock_ts: 2 bits */
payload_size_in_bits = 2;
for (j = 0; j < tc->num_clock_ts; j++) {
/* clock_timestamp_flag: 1 bit */
payload_size_in_bits += 1;
if (tc->clock_timestamp_flag[j]) {
/* units_field_based_flag: 1 bit
* counting_type: 5 bits
* full_timestamp_flag: 1 bit
* discontinuity_flag: 1 bit
* cnt_dropped_flag: 1 bit
* n_frames: 9 bit
*/
payload_size_in_bits += 18;
if (tc->full_timestamp_flag[j]) {
/* seconds_value: 6 bits
* minutes_value: 6 bits
* hours_value: 5 bits
*/
payload_size_in_bits += 17;
} else {
/* seconds_flag: 1 bit */
payload_size_in_bits += 1;
if (tc->seconds_flag[j]) {
/* seconds_value: 6 bits
* minutes_flag: 1 bit
*/
payload_size_in_bits += 7;
if (tc->minutes_flag[j]) {
/* minutes_value: 6 bits
* hours_flag: 1 bit
*/
payload_size_in_bits += 7;
if (tc->hours_flag[j]) {
/* hours_value: 5 bits */
payload_size_in_bits += 5;
}
}
}
}
/* time_offset_length: 5bits
* time_offset_value: time_offset_length bits
*/
payload_size_in_bits += (5 + tc->time_offset_length[j]);
}
}
payload_size_data = payload_size_in_bits >> 3;
if ((payload_size_in_bits & 0x7) != 0) {
GST_INFO ("Bits for Time Code SEI is not byte aligned");
payload_size_data++;
need_align = TRUE;
}
break;
}
case GST_H265_SEI_MASTERING_DISPLAY_COLOUR_VOLUME:
/* x, y 16 bits per RGB channel
* x, y 16 bits white point
* max, min luminance 32 bits
*
* (2 * 2 * 3) + (2 * 2) + (4 * 2) = 24 bytes
*/
payload_size_data = 24;
break;
case GST_H265_SEI_CONTENT_LIGHT_LEVEL:
/* maxCLL and maxFALL per 16 bits
*
* 2 * 2 = 4 bytes
*/
payload_size_data = 4;
break;
default:
break;
}
if (payload_size_data == 0) {
GST_FIXME ("Unsupported SEI type %d", msg->payloadType);
continue;
}
/* write payload type bytes */
while (payload_type_data >= 0xff) {
WRITE_UINT8 (&nw, 0xff, 8);
payload_type_data -= 0xff;
}
WRITE_UINT8 (&nw, payload_type_data, 8);
/* write payload size bytes */
while (payload_size_data >= 0xff) {
WRITE_UINT8 (&nw, 0xff, 8);
payload_size_data -= 0xff;
}
WRITE_UINT8 (&nw, payload_size_data, 8);
switch (msg->payloadType) {
case GST_H265_SEI_REGISTERED_USER_DATA:
GST_DEBUG ("Writing \"Registered user data\" done");
if (!gst_h265_write_sei_registered_user_data (&nw,
&msg->payload.registered_user_data)) {
GST_WARNING ("Failed to write \"Registered user data\"");
goto error;
}
have_written_data = TRUE;
break;
case GST_H265_SEI_USER_DATA_UNREGISTERED:
GST_DEBUG ("Writing \"Unregistered user data\" done");
if (!gst_h265_write_sei_user_data_unregistered (&nw,
&msg->payload.user_data_unregistered)) {
GST_WARNING ("Failed to write \"Unregistered user data\"");
goto error;
}
have_written_data = TRUE;
break;
case GST_H265_SEI_TIME_CODE:
GST_DEBUG ("Wrtiting \"Time code\"");
if (!gst_h265_write_sei_time_code (&nw, &msg->payload.time_code)) {
GST_WARNING ("Failed to write \"Time code\"");
goto error;
}
have_written_data = TRUE;
break;
case GST_H265_SEI_MASTERING_DISPLAY_COLOUR_VOLUME:
GST_DEBUG ("Wrtiting \"Mastering display colour volume\"");
if (!gst_h265_write_sei_mastering_display_colour_volume (&nw,
&msg->payload.mastering_display_colour_volume)) {
GST_WARNING ("Failed to write \"Mastering display colour volume\"");
goto error;
}
have_written_data = TRUE;
break;
case GST_H265_SEI_CONTENT_LIGHT_LEVEL:
GST_DEBUG ("Writing \"Content light level\" done");
if (!gst_h265_write_sei_content_light_level_info (&nw,
&msg->payload.content_light_level)) {
GST_WARNING ("Failed to write \"Content light level\"");
goto error;
}
have_written_data = TRUE;
break;
default:
break;
}
if (need_align && !nal_writer_do_rbsp_trailing_bits (&nw)) {
GST_WARNING ("Cannot insert traling bits");
goto error;
}
}
if (!have_written_data) {
GST_WARNING ("No written sei data");
goto error;
}
if (!nal_writer_do_rbsp_trailing_bits (&nw)) {
GST_WARNING ("Failed to insert rbsp trailing bits");
goto error;
}
return nal_writer_reset_and_get_memory (&nw);
error:
nal_writer_reset (&nw);
return NULL;
}
/**
* gst_h265_create_sei_memory:
* @layer_id: a nal unit layer id
* @temporal_id_plus1: a nal unit temporal identifier
* @start_code_prefix_length: a length of start code prefix, must be 3 or 4
* @messages: (transfer none): a GArray of #GstH265SEIMessage
*
* Creates raw byte-stream format (a.k.a Annex B type) SEI nal unit data
* from @messages
*
* Returns: a #GstMemory containing a PREFIX SEI nal unit
*
* Since: 1.18
*/
GstMemory *
gst_h265_create_sei_memory (guint8 layer_id, guint8 temporal_id_plus1,
guint8 start_code_prefix_length, GArray * messages)
{
g_return_val_if_fail (start_code_prefix_length == 3
|| start_code_prefix_length == 4, NULL);
g_return_val_if_fail (messages != NULL, NULL);
g_return_val_if_fail (messages->len > 0, NULL);
return gst_h265_create_sei_memory_internal (layer_id, temporal_id_plus1,
start_code_prefix_length, FALSE, messages);
}
/**
* gst_h265_create_sei_memory_hevc:
* @layer_id: a nal unit layer id
* @temporal_id_plus1: a nal unit temporal identifier
* @nal_length_size: a size of nal length field, allowed range is [1, 4]
* @messages: (transfer none): a GArray of #GstH265SEIMessage
*
* Creates raw packetized format SEI nal unit data from @messages
*
* Returns: a #GstMemory containing a PREFIX SEI nal unit
*
* Since: 1.18
*/
GstMemory *
gst_h265_create_sei_memory_hevc (guint8 layer_id, guint8 temporal_id_plus1,
guint8 nal_length_size, GArray * messages)
{
return gst_h265_create_sei_memory_internal (layer_id, temporal_id_plus1,
nal_length_size, TRUE, messages);
}
static GstBuffer *
gst_h265_parser_insert_sei_internal (GstH265Parser * parser,
guint8 nal_prefix_size, gboolean packetized, GstBuffer * au,
GstMemory * sei)
{
GstH265NalUnit nalu;
GstH265NalUnit sei_nalu;
GstMapInfo info;
GstMapInfo sei_info;
GstH265ParserResult pres;
guint offset = 0;
GstBuffer *new_buffer = NULL;
GstMemory *new_mem = NULL;
/* all SEI payload types supported by us need to have the identical
* temporal id to that of slice. Parse SEI first and we will
* update it if it's required */
if (!gst_memory_map (sei, &sei_info, GST_MAP_READ)) {
GST_ERROR ("Cannot map sei memory");
return NULL;
}
if (packetized) {
pres = gst_h265_parser_identify_nalu_hevc (parser,
sei_info.data, 0, sei_info.size, nal_prefix_size, &sei_nalu);
} else {
pres = gst_h265_parser_identify_nalu (parser,
sei_info.data, 0, sei_info.size, &sei_nalu);
}
gst_memory_unmap (sei, &sei_info);
if (pres != GST_H265_PARSER_OK && pres != GST_H265_PARSER_NO_NAL_END) {
GST_DEBUG ("Failed to identify sei nal unit, ret: %d", pres);
return NULL;
}
if (!gst_buffer_map (au, &info, GST_MAP_READ)) {
GST_ERROR ("Cannot map au buffer");
return NULL;
}
/* Find the offset of the first slice */
do {
if (packetized) {
pres = gst_h265_parser_identify_nalu_hevc (parser,
info.data, offset, info.size, nal_prefix_size, &nalu);
} else {
pres = gst_h265_parser_identify_nalu (parser,
info.data, offset, info.size, &nalu);
}
if (pres != GST_H265_PARSER_OK && pres != GST_H265_PARSER_NO_NAL_END) {
GST_DEBUG ("Failed to identify nal unit, ret: %d", pres);
gst_buffer_unmap (au, &info);
return NULL;
}
if (nalu.type <= GST_H265_NAL_SLICE_RASL_R
|| (nalu.type >= GST_H265_NAL_SLICE_BLA_W_LP
&& nalu.type <= GST_H265_NAL_SLICE_CRA_NUT)) {
GST_DEBUG ("Found slice nal type %d at offset %d", nalu.type,
nalu.sc_offset);
break;
}
offset = nalu.offset + nalu.size;
} while (pres == GST_H265_PARSER_OK);
gst_buffer_unmap (au, &info);
/* found the best position now, create new buffer */
new_buffer = gst_buffer_new ();
/* copy all metadata */
if (!gst_buffer_copy_into (new_buffer, au, GST_BUFFER_COPY_METADATA, 0, -1)) {
GST_ERROR ("Failed to copy metadata into new buffer");
gst_clear_buffer (&new_buffer);
goto out;
}
/* copy non-slice nal */
if (nalu.sc_offset > 0) {
if (!gst_buffer_copy_into (new_buffer, au,
GST_BUFFER_COPY_MEMORY, 0, nalu.sc_offset)) {
GST_ERROR ("Failed to copy buffer");
gst_clear_buffer (&new_buffer);
goto out;
}
}
/* check whether we need to update temporal id and layer id.
* If it's not matched to slice nalu, update it.
*/
if (sei_nalu.layer_id != nalu.layer_id || sei_nalu.temporal_id_plus1 !=
nalu.temporal_id_plus1) {
guint16 nalu_header;
guint16 layer_id_temporal_id = 0;
new_mem = gst_memory_copy (sei, 0, -1);
if (!gst_memory_map (new_mem, &sei_info, GST_MAP_READWRITE)) {
GST_ERROR ("Failed to map new sei memory");
gst_memory_unref (new_mem);
gst_clear_buffer (&new_buffer);
goto out;
}
nalu_header = GST_READ_UINT16_BE (sei_info.data + sei_nalu.offset);
/* clear bits 7 ~ 15
* NOTE:
* bit 0: forbidden_zero_bit
* bits 1 ~ 6: nalu type */
nalu_header &= 0xfe00;
layer_id_temporal_id = ((nalu.layer_id << 3) & 0x1f8);
layer_id_temporal_id |= (nalu.temporal_id_plus1 & 0x7);
nalu_header |= layer_id_temporal_id;
GST_WRITE_UINT16_BE (sei_info.data + sei_nalu.offset, nalu_header);
gst_memory_unmap (new_mem, &sei_info);
} else {
new_mem = gst_memory_ref (sei);
}
/* insert sei */
gst_buffer_append_memory (new_buffer, new_mem);
/* copy the rest */
if (!gst_buffer_copy_into (new_buffer, au,
GST_BUFFER_COPY_MEMORY, nalu.sc_offset, -1)) {
GST_ERROR ("Failed to copy buffer");
gst_clear_buffer (&new_buffer);
goto out;
}
out:
return new_buffer;
}
/**
* gst_h265_parser_insert_sei:
* @parser: a #GstH265Parser
* @au: (transfer none): a #GstBuffer containing AU data
* @sei: (transfer none): a #GstMemory containing a SEI nal
*
* Copy @au into new #GstBuffer and insert @sei into the #GstBuffer.
* The validation for completeness of @au and @sei is caller's responsibility.
* Both @au and @sei must be byte-stream formatted
*
* Returns: (transfer full) (nullable): a SEI inserted #GstBuffer or %NULL
* if cannot figure out proper position to insert a @sei
*
* Since: 1.18
*/
GstBuffer *
gst_h265_parser_insert_sei (GstH265Parser * parser, GstBuffer * au,
GstMemory * sei)
{
g_return_val_if_fail (parser != NULL, NULL);
g_return_val_if_fail (GST_IS_BUFFER (au), NULL);
g_return_val_if_fail (sei != NULL, NULL);
/* the size of start code prefix (3 or 4) is not matter since it will be
* scanned */
return gst_h265_parser_insert_sei_internal (parser, 4, FALSE, au, sei);
}
/**
* gst_h265_parser_insert_sei_hevc:
* @parser: a #GstH265Parser
* @nal_length_size: a size of nal length field, allowed range is [1, 4]
* @au: (transfer none): a #GstBuffer containing AU data
* @sei: (transfer none): a #GstMemory containing a SEI nal
*
* Copy @au into new #GstBuffer and insert @sei into the #GstBuffer.
* The validation for completeness of @au and @sei is caller's responsibility.
* Nal prefix type of both @au and @sei must be packetized, and
* also the size of nal length field must be identical to @nal_length_size
*
* Returns: (transfer full) (nullable): a SEI inserted #GstBuffer or %NULL
* if cannot figure out proper position to insert a @sei
*
* Since: 1.18
*/
GstBuffer *
gst_h265_parser_insert_sei_hevc (GstH265Parser * parser, guint8 nal_length_size,
GstBuffer * au, GstMemory * sei)
{
g_return_val_if_fail (parser != NULL, NULL);
g_return_val_if_fail (nal_length_size > 0 && nal_length_size < 5, NULL);
g_return_val_if_fail (GST_IS_BUFFER (au), NULL);
g_return_val_if_fail (sei != NULL, NULL);
return gst_h265_parser_insert_sei_internal (parser, nal_length_size, TRUE,
au, sei);
}
/**
* gst_h265_get_profile_from_sps:
* @sps: a #GstH265SPS
*
* Return the H265 profile from @sps.
*
* Returns: a #GstH265Profile
* Since: 1.20
*/
GstH265Profile
gst_h265_get_profile_from_sps (GstH265SPS * sps)
{
GstH265Profile profiles[GST_H265_PROFILE_MAX] = { GST_H265_PROFILE_INVALID, };
GstH265ProfileTierLevel tmp_ptl;
guint i, len = 0;
guint chroma_format_idc, bit_depth_luma, bit_depth_chroma;
g_return_val_if_fail (sps != NULL, GST_H265_PROFILE_INVALID);
tmp_ptl = sps->profile_tier_level;
chroma_format_idc = sps->chroma_format_idc;
bit_depth_luma = sps->bit_depth_luma_minus8 + 8;
bit_depth_chroma = sps->bit_depth_chroma_minus8 + 8;
gst_h265_profile_tier_level_get_profiles (&sps->profile_tier_level, profiles,
&len);
for (i = 0; i < len && i < G_N_ELEMENTS (profiles); i++) {
switch (profiles[i]) {
case GST_H265_PROFILE_INVALID:
break;
case GST_H265_PROFILE_MAIN:
case GST_H265_PROFILE_MAIN_STILL_PICTURE:
/* A.3.2 or A.3.5 */
if (chroma_format_idc == 1
&& bit_depth_luma == 8 && bit_depth_chroma == 8)
return profiles[i];
break;
case GST_H265_PROFILE_MAIN_10:
/* A.3.3 */
if (chroma_format_idc == 1
&& bit_depth_luma >= 8 && bit_depth_luma <= 10
&& bit_depth_chroma >= 8 && bit_depth_chroma <= 10)
return profiles[i];
break;
default:
return profiles[i];
}
}
/* Invalid profile: */
/* Set the conformance indicators based on chroma_format_idc / bit_depth */
switch (chroma_format_idc) {
case 0:
tmp_ptl.max_monochrome_constraint_flag = 1;
tmp_ptl.max_420chroma_constraint_flag = 1;
tmp_ptl.max_422chroma_constraint_flag = 1;
break;
case 1:
tmp_ptl.max_monochrome_constraint_flag = 0;
tmp_ptl.max_420chroma_constraint_flag = 1;
tmp_ptl.max_422chroma_constraint_flag = 1;
break;
case 2:
tmp_ptl.max_monochrome_constraint_flag = 0;
tmp_ptl.max_420chroma_constraint_flag = 0;
tmp_ptl.max_422chroma_constraint_flag = 1;
break;
case 3:
tmp_ptl.max_monochrome_constraint_flag = 0;
tmp_ptl.max_420chroma_constraint_flag = 0;
tmp_ptl.max_422chroma_constraint_flag = 0;
break;
default:
g_assert_not_reached ();
break;
}
tmp_ptl.max_8bit_constraint_flag = 1;
tmp_ptl.max_10bit_constraint_flag = 1;
tmp_ptl.max_12bit_constraint_flag = 1;
tmp_ptl.max_14bit_constraint_flag = 1;
if (bit_depth_luma > 8 || bit_depth_chroma > 8)
tmp_ptl.max_8bit_constraint_flag = 0;
if (bit_depth_luma > 10 || bit_depth_chroma > 10)
tmp_ptl.max_10bit_constraint_flag = 0;
if (bit_depth_luma > 12 || bit_depth_chroma > 12)
tmp_ptl.max_12bit_constraint_flag = 0;
if (tmp_ptl.profile_idc == GST_H265_PROFILE_IDC_HIGH_THROUGHPUT
|| tmp_ptl.profile_idc == GST_H265_PROFILE_IDC_SCREEN_CONTENT_CODING
|| tmp_ptl.profile_idc ==
GST_H265_PROFILE_IDC_SCALABLE_FORMAT_RANGE_EXTENSION
|| tmp_ptl.profile_idc ==
GST_H265_PROFILE_IDC_HIGH_THROUGHPUT_SCREEN_CONTENT_CODING_EXTENSION
|| tmp_ptl.profile_compatibility_flag[5]
|| tmp_ptl.profile_compatibility_flag[9]
|| tmp_ptl.profile_compatibility_flag[10]
|| tmp_ptl.profile_compatibility_flag[11]) {
if (bit_depth_luma > 14 || bit_depth_chroma > 14)
tmp_ptl.max_14bit_constraint_flag = 0;
} else {
tmp_ptl.max_14bit_constraint_flag = 0;
}
/* first profile of the synthetic ptl */
return gst_h265_profile_tier_level_get_profile (&tmp_ptl);
}
/* *INDENT-OFF* */
static void
gst_clear_h265_decoder_config_record_nalu_array (
GstH265DecoderConfigRecordNalUnitArray * array)
{
if (!array)
return;
if (array->nalu)
g_array_unref (array->nalu);
}
/* *INDENT-ON* */
/**
* gst_h265_decoder_config_record_free:
* @config: (nullable): a #GstH265DecoderConfigRecord data
*
* Free @config data
*
* Since: 1.24
*/
void
gst_h265_decoder_config_record_free (GstH265DecoderConfigRecord * config)
{
if (!config)
return;
if (config->nalu_array)
g_array_unref (config->nalu_array);
g_free (config);
}
static GstH265DecoderConfigRecord *
gst_h265_decoder_config_record_new (void)
{
GstH265DecoderConfigRecord *config;
config = g_new0 (GstH265DecoderConfigRecord, 1);
config->nalu_array = g_array_new (FALSE,
FALSE, sizeof (GstH265DecoderConfigRecordNalUnitArray));
g_array_set_clear_func (config->nalu_array,
(GDestroyNotify) gst_clear_h265_decoder_config_record_nalu_array);
return config;
}
/**
* gst_h265_parser_parse_decoder_config_record:
* @parser: a #GstH265Parser
* @data: the data to parse
* @size: the size of @data
* @config: (out): parsed #GstH265DecoderConfigRecord data
*
* Parses HEVCDecoderConfigurationRecord data and fill into @config.
* The caller must free @config via gst_h265_decoder_config_record_free()
*
* This method does not parse VPS, SPS and PPS and therefore the caller needs to
* parse each NAL unit via appropriate parsing method.
*
* Returns: a #GstH265ParserResult
*
* Since: 1.24
*/
GstH265ParserResult
gst_h265_parser_parse_decoder_config_record (GstH265Parser * parser,
const guint8 * data, gsize size, GstH265DecoderConfigRecord ** config)
{
GstH265DecoderConfigRecord *ret;
GstBitReader br;
GstH265ParserResult result = GST_H265_PARSER_OK;
guint i;
guint8 num_of_arrays;
g_return_val_if_fail (parser != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (data != NULL, GST_H265_PARSER_ERROR);
g_return_val_if_fail (config != NULL, GST_H265_PARSER_ERROR);
#define READ_CONFIG_UINT8(val, nbits) G_STMT_START { \
if (!gst_bit_reader_get_bits_uint8 (&br, (guint8 *) &val, nbits)) { \
GST_WARNING ("Failed to read " G_STRINGIFY (val)); \
result = GST_H265_PARSER_ERROR; \
goto error; \
} \
} G_STMT_END;
#define READ_CONFIG_UINT16(val, nbits) G_STMT_START { \
if (!gst_bit_reader_get_bits_uint16 (&br, &val, nbits)) { \
GST_WARNING ("Failed to read " G_STRINGIFY (val)); \
result = GST_H265_PARSER_ERROR; \
goto error; \
} \
} G_STMT_END;
#define SKIP_CONFIG_BITS(nbits) G_STMT_START { \
if (!gst_bit_reader_skip (&br, nbits)) { \
GST_WARNING ("Failed to skip %d bits", nbits); \
result = GST_H265_PARSER_ERROR; \
goto error; \
} \
} G_STMT_END;
*config = NULL;
if (size < 23) {
GST_WARNING ("Too small size hvcC");
return GST_H265_PARSER_ERROR;
}
gst_bit_reader_init (&br, data, size);
ret = gst_h265_decoder_config_record_new ();
READ_CONFIG_UINT8 (ret->configuration_version, 8);
if (ret->configuration_version != 1) {
GST_WARNING ("Wrong configurationVersion %d", ret->configuration_version);
/* Must be 1 but allows 0 for backward compatibility.
* See commit
* https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/63fee31a3f95021fa0bb2429c723f5356c9b3c4b */
if (ret->configuration_version != 0) {
result = GST_H265_PARSER_ERROR;
goto error;
}
}
READ_CONFIG_UINT8 (ret->general_profile_space, 2);
READ_CONFIG_UINT8 (ret->general_tier_flag, 1);
READ_CONFIG_UINT8 (ret->general_profile_idc, 5);
for (i = 0; i < 32; i++)
READ_CONFIG_UINT8 (ret->general_profile_compatibility_flags[i], 1);
/* 7.3.3 Profile, tier and level syntax */
READ_CONFIG_UINT8 (ret->general_progressive_source_flag, 1);
READ_CONFIG_UINT8 (ret->general_interlaced_source_flag, 1);
READ_CONFIG_UINT8 (ret->general_non_packed_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_frame_only_constraint_flag, 1);
if (ret->general_profile_idc == 4 ||
ret->general_profile_compatibility_flags[4] ||
ret->general_profile_idc == 5 ||
ret->general_profile_compatibility_flags[5] ||
ret->general_profile_idc == 6 ||
ret->general_profile_compatibility_flags[6] ||
ret->general_profile_idc == 7 ||
ret->general_profile_compatibility_flags[7] ||
ret->general_profile_idc == 8 ||
ret->general_profile_compatibility_flags[8] ||
ret->general_profile_idc == 9 ||
ret->general_profile_compatibility_flags[9] ||
ret->general_profile_idc == 10 ||
ret->general_profile_compatibility_flags[10] ||
ret->general_profile_idc == 11 ||
ret->general_profile_compatibility_flags[11]) {
READ_CONFIG_UINT8 (ret->general_max_12bit_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_max_10bit_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_max_8bit_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_max_422chroma_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_max_420chroma_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_max_monochrome_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_intra_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_one_picture_only_constraint_flag, 1);
READ_CONFIG_UINT8 (ret->general_lower_bit_rate_constraint_flag, 1);
if (ret->general_profile_idc == 5 ||
ret->general_profile_compatibility_flags[5] ||
ret->general_profile_idc == 9 ||
ret->general_profile_compatibility_flags[9] ||
ret->general_profile_idc == 10 ||
ret->general_profile_compatibility_flags[10] ||
ret->general_profile_idc == 11 ||
ret->general_profile_compatibility_flags[11]) {
READ_CONFIG_UINT8 (ret->general_max_14bit_constraint_flag, 1);
SKIP_CONFIG_BITS (33);
} else {
SKIP_CONFIG_BITS (34);
}
} else if (ret->general_profile_idc == 2 ||
ret->general_profile_compatibility_flags[2]) {
SKIP_CONFIG_BITS (7);
READ_CONFIG_UINT8 (ret->general_one_picture_only_constraint_flag, 1);
SKIP_CONFIG_BITS (35);
} else {
SKIP_CONFIG_BITS (43);
}
if (ret->general_profile_idc == 1 ||
ret->general_profile_compatibility_flags[1] ||
ret->general_profile_idc == 2 ||
ret->general_profile_compatibility_flags[2] ||
ret->general_profile_idc == 3 ||
ret->general_profile_compatibility_flags[3] ||
ret->general_profile_idc == 4 ||
ret->general_profile_compatibility_flags[4] ||
ret->general_profile_idc == 5 ||
ret->general_profile_compatibility_flags[5] ||
ret->general_profile_idc == 9 ||
ret->general_profile_compatibility_flags[9] ||
ret->general_profile_idc == 11 ||
ret->general_profile_compatibility_flags[11]) {
READ_CONFIG_UINT8 (ret->general_inbld_flag, 1);
} else {
SKIP_CONFIG_BITS (1);
}
g_assert (gst_bit_reader_get_pos (&br) == 12 * 8);
READ_CONFIG_UINT8 (ret->general_level_idc, 8);
SKIP_CONFIG_BITS (4);
READ_CONFIG_UINT16 (ret->min_spatial_segmentation_idc, 12);
SKIP_CONFIG_BITS (6);
READ_CONFIG_UINT8 (ret->parallelism_type, 2);
SKIP_CONFIG_BITS (6);
READ_CONFIG_UINT8 (ret->chroma_format_idc, 2);
SKIP_CONFIG_BITS (5);
READ_CONFIG_UINT8 (ret->bit_depth_luma_minus8, 3);
SKIP_CONFIG_BITS (5);
READ_CONFIG_UINT8 (ret->bit_depth_chroma_minus8, 3);
READ_CONFIG_UINT16 (ret->avg_frame_rate, 16);
READ_CONFIG_UINT8 (ret->constant_frame_rate, 2);
READ_CONFIG_UINT8 (ret->num_temporal_layers, 3);
READ_CONFIG_UINT8 (ret->temporal_id_nested, 1);
READ_CONFIG_UINT8 (ret->length_size_minus_one, 2);
if (ret->length_size_minus_one == 2) {
/* "length_size_minus_one + 1" should be 1, 2, or 4 */
GST_WARNING ("Wrong nal-length-size");
result = GST_H265_PARSER_ERROR;
goto error;
}
READ_CONFIG_UINT8 (num_of_arrays, 8);
g_assert (gst_bit_reader_get_pos (&br) == 23 * 8);
for (i = 0; i < num_of_arrays; i++) {
GstH265DecoderConfigRecordNalUnitArray array;
guint8 nalu_type;
GstH265NalUnit nalu;
guint16 num_nalu, j;
guint offset;
READ_CONFIG_UINT8 (array.array_completeness, 1);
SKIP_CONFIG_BITS (1);
READ_CONFIG_UINT8 (nalu_type, 6);
array.nal_unit_type = nalu_type;
READ_CONFIG_UINT16 (num_nalu, 16);
offset = gst_bit_reader_get_pos (&br) / 8;
array.nalu = g_array_sized_new (FALSE, FALSE, sizeof (GstH265NalUnit),
num_nalu);
for (j = 0; j < num_nalu; j++) {
result = gst_h265_parser_identify_nalu_hevc (parser, data, offset, size,
2, &nalu);
if (result != GST_H265_PARSER_OK) {
g_array_unref (array.nalu);
/* Ignores parsing error if this is the last nalu and not an essential
* nalu for decoding */
if (i + 1 == num_of_arrays && j + 1 == num_nalu &&
nalu_type != GST_H265_NAL_VPS && nalu_type != GST_H265_NAL_SPS &&
nalu_type != GST_H265_NAL_PPS) {
GST_WARNING ("Couldn't parse the last nalu, type %d at array %d / %d",
nalu_type, i, j);
goto out;
}
goto error;
}
g_array_append_val (array.nalu, nalu);
offset = nalu.offset + nalu.size;
}
g_array_append_val (ret->nalu_array, array);
if (i != num_of_arrays - 1 && !gst_bit_reader_set_pos (&br, offset * 8)) {
GST_WARNING ("Not enough byte for NAL reading");
result = GST_H265_PARSER_ERROR;
goto error;
}
}
out:
*config = ret;
return GST_H265_PARSER_OK;
error:
{
gst_h265_decoder_config_record_free (ret);
return result;
}
#undef READ_CONFIG_UINT8
#undef READ_CONFIG_UINT16
#undef SKIP_CONFIG_BITS
}
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