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gstreamer/gst-libs/gst/vaapi/gstvaapiencoder_h265.c
Víctor Manuel Jáquez Leal d76d78cc8e libs: fix compiler warnings 
After setting the release flags, the compiler warns about a couple
initialized variables.

Also marked a couple of set variables as unused, because they are only
used for assertion.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
2016-02-03 20:22:46 +01:00

2580 lines
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/*
* gstvaapiencoder_h265.c - H.265 encoder
*
* Copyright (C) 2015 Intel Corporation
* Author: 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 Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/* GValueArray has deprecated without providing an alternative in glib >= 2.32
* See https://bugzilla.gnome.org/show_bug.cgi?id=667228
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include "sysdeps.h"
#include <math.h>
#include <va/va.h>
#include <va/va_enc_hevc.h>
#include <gst/base/gstbitwriter.h>
#include <gst/codecparsers/gsth265parser.h>
#include "gstvaapicompat.h"
#include "gstvaapiencoder_priv.h"
#include "gstvaapiencoder_h265.h"
#include "gstvaapiutils_h265.h"
#include "gstvaapiutils_h265_priv.h"
#include "gstvaapicodedbufferproxy_priv.h"
#include "gstvaapisurface.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/* Define the maximum IDR period */
#define MAX_IDR_PERIOD 512
/* Define default rate control mode ("constant-qp") */
#define DEFAULT_RATECONTROL GST_VAAPI_RATECONTROL_CQP
/* Supported set of VA rate controls, within this implementation */
#define SUPPORTED_RATECONTROLS \
(GST_VAAPI_RATECONTROL_MASK (CQP))
/* Supported set of tuning options, within this implementation */
#define SUPPORTED_TUNE_OPTIONS \
(GST_VAAPI_ENCODER_TUNE_MASK (NONE))
/* Supported set of VA packed headers, within this implementation */
#define SUPPORTED_PACKED_HEADERS \
(VA_ENC_PACKED_HEADER_SEQUENCE | \
VA_ENC_PACKED_HEADER_PICTURE | \
VA_ENC_PACKED_HEADER_SLICE)
typedef struct
{
GstVaapiSurfaceProxy *pic;
guint poc;
} GstVaapiEncoderH265Ref;
typedef enum
{
GST_VAAPI_ENC_H265_REORD_NONE = 0,
GST_VAAPI_ENC_H265_REORD_DUMP_FRAMES = 1,
GST_VAAPI_ENC_H265_REORD_WAIT_FRAMES = 2
} GstVaapiEncH265ReorderState;
typedef struct _GstVaapiH265RefPool
{
GQueue ref_list;
guint max_ref_frames;
guint max_reflist0_count;
guint max_reflist1_count;
} GstVaapiH265RefPool;
typedef struct _GstVaapiH265ReorderPool
{
GQueue reorder_frame_list;
guint reorder_state;
guint frame_index;
guint cur_present_index;
} GstVaapiH265ReorderPool;
/* ------------------------------------------------------------------------- */
/* --- H.265 Encoder --- */
/* ------------------------------------------------------------------------- */
#define GST_VAAPI_ENCODER_H265_CAST(encoder) \
((GstVaapiEncoderH265 *)(encoder))
struct _GstVaapiEncoderH265
{
GstVaapiEncoder parent_instance;
GstVaapiProfile profile;
GstVaapiTierH265 tier;
GstVaapiLevelH265 level;
guint8 profile_idc;
guint8 max_profile_idc;
guint8 hw_max_profile_idc;
guint8 level_idc;
guint32 idr_period;
guint32 init_qp;
guint32 min_qp;
guint32 num_slices;
guint32 num_bframes;
guint32 ctu_width; /* CTU == Coding Tree Unit */
guint32 ctu_height;
guint32 luma_width;
guint32 luma_height;
GstClockTime cts_offset;
gboolean config_changed;
/* maximum required size of the decoded picture buffer */
guint32 max_dec_pic_buffering;
/* maximum allowed number of pictures that can precede any picture in
* the CVS in decoding order and follow that picture in output order */
guint32 max_num_reorder_pics;
/* frame, poc */
guint32 max_pic_order_cnt;
guint32 log2_max_pic_order_cnt;
guint32 idr_num;
GstBuffer *vps_data;
GstBuffer *sps_data;
GstBuffer *pps_data;
guint bitrate_bits; // bitrate (bits)
/* Crop rectangle */
guint conformance_window_flag:1;
guint32 conf_win_left_offset;
guint32 conf_win_right_offset;
guint32 conf_win_top_offset;
guint32 conf_win_bottom_offset;
GstVaapiH265RefPool ref_pool;
GstVaapiH265ReorderPool reorder_pool;
guint first_slice_segment_in_pic_flag:1;
guint sps_temporal_mvp_enabled_flag:1;
guint sample_adaptive_offset_enabled_flag:1;
};
static inline gboolean
_poc_greater_than (guint poc1, guint poc2, guint max_poc)
{
return (((poc1 - poc2) & (max_poc - 1)) < max_poc / 2);
}
/* Get slice_type value for H.265 specification */
static guint8
h265_get_slice_type (GstVaapiPictureType type)
{
switch (type) {
case GST_VAAPI_PICTURE_TYPE_I:
return GST_H265_I_SLICE;
case GST_VAAPI_PICTURE_TYPE_P:
return GST_H265_P_SLICE;
case GST_VAAPI_PICTURE_TYPE_B:
return GST_H265_B_SLICE;
default:
break;
}
return -1;
}
/* Get log2_max_pic_order_cnt value for H.265 specification */
static guint
h265_get_log2_max_pic_order_cnt (guint num)
{
guint ret = 0;
while (num) {
++ret;
num >>= 1;
}
if (ret <= 4)
ret = 4;
else if (ret > 10)
ret = 10;
/* must be greater than 4 */
return ret;
}
/* ------------------------------------------------------------------------- */
/* --- H.265 Bitstream Writer --- */
/* ------------------------------------------------------------------------- */
#define WRITE_UINT32(bs, val, nbits) do { \
if (!gst_bit_writer_put_bits_uint32 (bs, val, nbits)) { \
GST_WARNING ("failed to write uint32, nbits: %d", nbits); \
goto bs_error; \
} \
} while (0)
#define WRITE_UE(bs, val) do { \
if (!bs_write_ue (bs, val)) { \
GST_WARNING ("failed to write ue(v)"); \
goto bs_error; \
} \
} while (0)
#define WRITE_SE(bs, val) do { \
if (!bs_write_se (bs, val)) { \
GST_WARNING ("failed to write se(v)"); \
goto bs_error; \
} \
} while (0)
/* Write an unsigned integer Exp-Golomb-coded syntax element. i.e. ue(v) */
static gboolean
bs_write_ue (GstBitWriter * bs, guint32 value)
{
guint32 size_in_bits = 0;
guint32 tmp_value = ++value;
while (tmp_value) {
++size_in_bits;
tmp_value >>= 1;
}
if (size_in_bits > 1
&& !gst_bit_writer_put_bits_uint32 (bs, 0, size_in_bits - 1))
return FALSE;
if (!gst_bit_writer_put_bits_uint32 (bs, value, size_in_bits))
return FALSE;
return TRUE;
}
/* Write a signed integer Exp-Golomb-coded syntax element. i.e. se(v) */
static gboolean
bs_write_se (GstBitWriter * bs, gint32 value)
{
guint32 new_val;
if (value <= 0)
new_val = -(value << 1);
else
new_val = (value << 1) - 1;
if (!bs_write_ue (bs, new_val))
return FALSE;
return TRUE;
}
/* Write the NAL unit header */
static gboolean
bs_write_nal_header (GstBitWriter * bs, guint32 nal_unit_type)
{
guint8 nuh_layer_id = 0;
guint8 nuh_temporal_id_plus1 = 1;
WRITE_UINT32 (bs, 0, 1);
WRITE_UINT32 (bs, nal_unit_type, 6);
WRITE_UINT32 (bs, nuh_layer_id, 6);
WRITE_UINT32 (bs, nuh_temporal_id_plus1, 3);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write NAL unit header");
return FALSE;
}
}
/* Write the NAL unit trailing bits */
static gboolean
bs_write_trailing_bits (GstBitWriter * bs)
{
if (!gst_bit_writer_put_bits_uint32 (bs, 1, 1))
goto bs_error;
gst_bit_writer_align_bytes_unchecked (bs, 0);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write NAL unit trailing bits");
return FALSE;
}
}
/* Write profile_tier_level() */
static gboolean
bs_write_profile_tier_level (GstBitWriter * bs,
const VAEncSequenceParameterBufferHEVC * seq_param)
{
guint i;
/* general_profile_space */
WRITE_UINT32 (bs, 0, 2);
/* general_tier_flag */
WRITE_UINT32 (bs, seq_param->general_tier_flag, 1);
/* general_profile_idc */
WRITE_UINT32 (bs, seq_param->general_profile_idc, 5);
/* general_profile_compatibility_flag[32] */
for (i = 0; i < 32; i++) {
if (i == 1 || i == 2)
WRITE_UINT32 (bs, 1, 1);
else
WRITE_UINT32 (bs, 0, 1);
}
/* general_progressive_source_flag */
WRITE_UINT32 (bs, 1, 1);
/* general_interlaced_source_flag */
WRITE_UINT32 (bs, 0, 1);
/* general_non_packed_constraint_flag */
WRITE_UINT32 (bs, 0, 1);
/* general_frame_only_constraint_flag */
WRITE_UINT32 (bs, 1, 1);
/* general_reserved_zero_44bits */
for (i = 0; i < 44; i++)
WRITE_UINT32 (bs, 0, 1);
/* general_level_idc */
WRITE_UINT32 (bs, seq_param->general_level_idc, 8);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Profile Tier Level");
return FALSE;
}
}
/* Write an VPS NAL unit */
static gboolean
bs_write_vps_data (GstBitWriter * bs, GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture,
const VAEncSequenceParameterBufferHEVC * seq_param, GstVaapiProfile profile)
{
guint32 video_parameter_set_id = 0;
guint32 vps_max_layers_minus1 = 0;
guint32 vps_max_sub_layers_minus1 = 0;
guint32 vps_temporal_id_nesting_flag = 1;
guint32 vps_sub_layer_ordering_info_present_flag = 0;
guint32 vps_max_latency_increase_plus1 = 0;
guint32 vps_max_layer_id = 0;
guint32 vps_num_layer_sets_minus1 = 0;
guint32 vps_timing_info_present_flag = 0;
guint32 vps_extension_flag = 0;
/* video_parameter_set_id */
WRITE_UINT32 (bs, video_parameter_set_id, 4);
/* vps_reserved_three_2bits */
WRITE_UINT32 (bs, 3, 2);
/* vps_max_layers_minus1 */
WRITE_UINT32 (bs, vps_max_layers_minus1, 6);
/* vps_max_sub_layers_minus1 */
WRITE_UINT32 (bs, vps_max_sub_layers_minus1, 3);
/* vps_temporal_id_nesting_flag */
WRITE_UINT32 (bs, vps_temporal_id_nesting_flag, 1);
/* vps_reserved_0xffff_16bits */
WRITE_UINT32 (bs, 0xffff, 16);
/* profile_tier_level */
bs_write_profile_tier_level (bs, seq_param);
/* vps_sub_layer_ordering_info_present_flag */
WRITE_UINT32 (bs, vps_sub_layer_ordering_info_present_flag, 1);
/* vps_max_dec_pic_buffering_minus1 */
WRITE_UE (bs, encoder->max_dec_pic_buffering - 1);
/* vps_max_num_reorder_pics */
WRITE_UE (bs, encoder->max_num_reorder_pics);
/* vps_max_latency_increase_plus1 */
WRITE_UE (bs, vps_max_latency_increase_plus1);
/* vps_max_layer_id */
WRITE_UINT32 (bs, vps_max_layer_id, 6);
/* vps_num_layer_sets_minus1 */
WRITE_UE (bs, vps_num_layer_sets_minus1);
/* vps_timing_info_present_flag */
WRITE_UINT32 (bs, vps_timing_info_present_flag, 1);
/* vps_extension_flag */
WRITE_UINT32 (bs, vps_extension_flag, 1);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write VPS NAL unit");
return FALSE;
}
}
static gboolean
bs_write_vps (GstBitWriter * bs, GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture,
const VAEncSequenceParameterBufferHEVC * seq_param, GstVaapiProfile profile)
{
if (!bs_write_vps_data (bs, encoder, picture, seq_param, profile))
return FALSE;
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return FALSE;
}
/* Write an SPS NAL unit */
static gboolean
bs_write_sps_data (GstBitWriter * bs, GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture,
const VAEncSequenceParameterBufferHEVC * seq_param, GstVaapiProfile profile)
{
guint32 video_parameter_set_id = 0;
guint32 max_sub_layers_minus1 = 0;
guint32 temporal_id_nesting_flag = 1;
guint32 seq_parameter_set_id = 0;
guint32 sps_sub_layer_ordering_info_present_flag = 0;
guint32 sps_max_latency_increase_plus1 = 0;
guint32 num_short_term_ref_pic_sets = 0;
guint32 long_term_ref_pics_present_flag = 0;
guint32 sps_extension_flag = 0;
/* video_parameter_set_id */
WRITE_UINT32 (bs, video_parameter_set_id, 4);
/* max_sub_layers_minus1 */
WRITE_UINT32 (bs, max_sub_layers_minus1, 3);
/* temporal_id_nesting_flag */
WRITE_UINT32 (bs, temporal_id_nesting_flag, 1);
/* profile_tier_level */
bs_write_profile_tier_level (bs, seq_param);
/* seq_parameter_set_id */
WRITE_UE (bs, seq_parameter_set_id);
/* chroma_format_idc = 1, 4:2:0 */
WRITE_UE (bs, seq_param->seq_fields.bits.chroma_format_idc);
/* pic_width_in_luma_samples */
WRITE_UE (bs, seq_param->pic_width_in_luma_samples);
/* pic_height_in_luma_samples */
WRITE_UE (bs, seq_param->pic_height_in_luma_samples);
/* conformance_window_flag */
WRITE_UINT32 (bs, encoder->conformance_window_flag, 1);
if (encoder->conformance_window_flag) {
WRITE_UE (bs, encoder->conf_win_left_offset);
WRITE_UE (bs, encoder->conf_win_right_offset);
WRITE_UE (bs, encoder->conf_win_top_offset);
WRITE_UE (bs, encoder->conf_win_bottom_offset);
}
/* bit_depth_luma_minus8 */
WRITE_UE (bs, seq_param->seq_fields.bits.bit_depth_luma_minus8);
/* bit_depth_chroma_minus8 */
WRITE_UE (bs, seq_param->seq_fields.bits.bit_depth_chroma_minus8);
/* log2_max_pic_order_cnt_lsb_minus4 */
WRITE_UE (bs, encoder->log2_max_pic_order_cnt - 4);
/* sps_sub_layer_ordering_info_present_flag */
WRITE_UINT32 (bs, sps_sub_layer_ordering_info_present_flag, 1);
/* sps_max_dec_pic_buffering_minus1 */
WRITE_UE (bs, encoder->max_dec_pic_buffering - 1);
/* sps_max_num_reorder_pics */
WRITE_UE (bs, encoder->max_num_reorder_pics);
/* sps_max_latency_increase_plus1 */
WRITE_UE (bs, sps_max_latency_increase_plus1);
/* log2_min_luma_coding_block_size_minus3 */
WRITE_UE (bs, seq_param->log2_min_luma_coding_block_size_minus3);
/* log2_diff_max_min_luma_coding_block_size */
WRITE_UE (bs, seq_param->log2_diff_max_min_luma_coding_block_size);
/* log2_min_transform_block_size_minus2 */
WRITE_UE (bs, seq_param->log2_min_transform_block_size_minus2);
/* log2_diff_max_min_transform_block_size */
WRITE_UE (bs, seq_param->log2_diff_max_min_transform_block_size);
/* max_transform_hierarchy_depth_inter */
WRITE_UE (bs, seq_param->max_transform_hierarchy_depth_inter);
/*max_transform_hierarchy_depth_intra */
WRITE_UE (bs, seq_param->max_transform_hierarchy_depth_intra);
/* scaling_list_enabled_flag */
WRITE_UINT32 (bs, seq_param->seq_fields.bits.scaling_list_enabled_flag, 1);
/* amp_enabled_flag */
WRITE_UINT32 (bs, seq_param->seq_fields.bits.amp_enabled_flag, 1);
/* sample_adaptive_offset_enabled_flag */
WRITE_UINT32 (bs,
seq_param->seq_fields.bits.sample_adaptive_offset_enabled_flag, 1);
/* pcm_enabled_flag */
WRITE_UINT32 (bs, seq_param->seq_fields.bits.pcm_enabled_flag, 1);
/* num_short_term_ref_pic_sets */
WRITE_UE (bs, num_short_term_ref_pic_sets);
/* long_term_ref_pics_present_flag */
WRITE_UINT32 (bs, long_term_ref_pics_present_flag, 1);
/* sps_temporal_mvp_enabled_flag */
WRITE_UINT32 (bs, seq_param->seq_fields.bits.sps_temporal_mvp_enabled_flag,
1);
/* strong_intra_smoothing_enabled_flag */
WRITE_UINT32 (bs,
seq_param->seq_fields.bits.strong_intra_smoothing_enabled_flag, 1);
/* vui_parameters_present_flag */
WRITE_UINT32 (bs, seq_param->vui_parameters_present_flag, 1);
/*--------------- Write VUI Parameters--------------- */
if (seq_param->vui_parameters_present_flag) {
gboolean vui_hrd_parameters_present_flag;
/* aspect_ratio_info_present_flag */
WRITE_UINT32 (bs,
seq_param->vui_fields.bits.aspect_ratio_info_present_flag, 1);
if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
WRITE_UINT32 (bs, seq_param->aspect_ratio_idc, 8);
if (seq_param->aspect_ratio_idc == 0xFF) {
WRITE_UINT32 (bs, seq_param->sar_width, 16);
WRITE_UINT32 (bs, seq_param->sar_height, 16);
}
}
/* overscan_info_present_flag */
WRITE_UINT32 (bs, 0, 1);
/* video_signal_type_present_flag */
WRITE_UINT32 (bs, 0, 1);
/* chroma_loc_info_present_flag */
WRITE_UINT32 (bs, 0, 1);
/* neutral_chroma_indication_flag */
WRITE_UINT32 (bs, seq_param->vui_fields.bits.neutral_chroma_indication_flag,
1);
/* field_seq_flag */
WRITE_UINT32 (bs, seq_param->vui_fields.bits.field_seq_flag, 1);
/* frame_field_info_present_flag */
WRITE_UINT32 (bs, 0, 1);
/* default_display_window_flag */
WRITE_UINT32 (bs, 0, 1);
/* timing_info_present_flag */
WRITE_UINT32 (bs, seq_param->vui_fields.bits.vui_timing_info_present_flag,
1);
if (seq_param->vui_fields.bits.vui_timing_info_present_flag) {
/* vui_num_units_in_tick */
WRITE_UINT32 (bs, seq_param->vui_num_units_in_tick, 32);
/* vui_time_scale */
WRITE_UINT32 (bs, seq_param->vui_time_scale, 32);
/* vui_poc_proportional_to_timing_flag */
WRITE_UINT32 (bs, 0, 1);
/* vui_hrd_parameters_present_flag */
vui_hrd_parameters_present_flag = seq_param->bits_per_second > 0;
vui_hrd_parameters_present_flag = FALSE; /* XXX: disabled for now */
WRITE_UINT32 (bs, vui_hrd_parameters_present_flag, 1);
}
/* bitstream_restriction_flag */
WRITE_UINT32 (bs, seq_param->vui_fields.bits.bitstream_restriction_flag, 1);
}
/* sps_extension_flag */
WRITE_UINT32 (bs, sps_extension_flag, 1);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SPS NAL unit");
return FALSE;
}
}
static gboolean
bs_write_sps (GstBitWriter * bs, GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture,
const VAEncSequenceParameterBufferHEVC * seq_param, GstVaapiProfile profile)
{
if (!bs_write_sps_data (bs, encoder, picture, seq_param, profile))
return FALSE;
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return FALSE;
}
/* Write a PPS NAL unit */
static gboolean
bs_write_pps (GstBitWriter * bs,
const VAEncPictureParameterBufferHEVC * pic_param)
{
guint32 pic_parameter_set_id = 0;
guint32 seq_parameter_set_id = 0;
guint32 output_flag_present_flag = 0;
guint32 num_extra_slice_header_bits = 0;
guint32 cabac_init_present_flag = 0;
guint32 pps_slice_chroma_qp_offsets_present_flag = 0;
guint32 deblocking_filter_control_present_flag = 0;
guint32 lists_modification_present_flag = 0;
guint32 slice_segment_header_extension_present_flag = 0;
guint32 pps_extension_flag = 0;
/* pic_parameter_set_id */
WRITE_UE (bs, pic_parameter_set_id);
/* seq_parameter_set_id */
WRITE_UE (bs, seq_parameter_set_id);
/* dependent_slice_segments_enabled_flag */
WRITE_UINT32 (bs,
pic_param->pic_fields.bits.dependent_slice_segments_enabled_flag, 1);
/* output_flag_present_flag */
WRITE_UINT32 (bs, output_flag_present_flag, 1);
/* num_extra_slice_header_bits */
WRITE_UINT32 (bs, num_extra_slice_header_bits, 3);
/* sign_data_hiding_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.sign_data_hiding_enabled_flag,
1);
/* cabac_init_present_flag */
WRITE_UINT32 (bs, cabac_init_present_flag, 1);
/* num_ref_idx_l0_default_active_minus1 */
WRITE_UE (bs, pic_param->num_ref_idx_l0_default_active_minus1);
/* num_ref_idx_l1_default_active_minus1 */
WRITE_UE (bs, pic_param->num_ref_idx_l1_default_active_minus1);
/* pic_init_qp_minus26 */
WRITE_SE (bs, pic_param->pic_init_qp - 26);
/* constrained_intra_pred_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.constrained_intra_pred_flag, 1);
/* transform_skip_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.transform_skip_enabled_flag, 1);
/* cu_qp_delta_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.cu_qp_delta_enabled_flag, 1);
/* diff_cu_qp_delta_depth */
if (pic_param->pic_fields.bits.cu_qp_delta_enabled_flag)
WRITE_UE (bs, pic_param->diff_cu_qp_delta_depth);
/* pps_cb_qp_offset */
WRITE_SE (bs, pic_param->pps_cb_qp_offset);
/* pps_cr_qp_offset */
WRITE_SE (bs, pic_param->pps_cr_qp_offset);
/* pps_slice_chroma_qp_offsets_present_flag */
WRITE_UINT32 (bs, pps_slice_chroma_qp_offsets_present_flag, 1);
/* weighted_pred_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_pred_flag, 1);
/* weighted_bipred_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_bipred_flag, 1);
/* transquant_bypass_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.transquant_bypass_enabled_flag,
1);
/* tiles_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.tiles_enabled_flag, 1);
/* entropy_coding_sync_enabled_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.entropy_coding_sync_enabled_flag,
1);
/* pps_loop_filter_across_slices_enabled_flag */
WRITE_UINT32 (bs,
pic_param->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag, 1);
/* deblocking_filter_control_present_flag */
WRITE_UINT32 (bs, deblocking_filter_control_present_flag, 1);
/* pps_scaling_list_data_present_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.scaling_list_data_present_flag,
1);
/* lists_modification_present_flag */
WRITE_UINT32 (bs, lists_modification_present_flag, 1);
/* log2_parallel_merge_level_minus2 */
WRITE_UE (bs, pic_param->log2_parallel_merge_level_minus2);
/* slice_segment_header_extension_present_flag */
WRITE_UINT32 (bs, slice_segment_header_extension_present_flag, 1);
/* pps_extension_flag */
WRITE_UINT32 (bs, pps_extension_flag, 1);
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write PPS NAL unit");
return FALSE;
}
}
/* Write a Slice NAL unit */
static gboolean
bs_write_slice (GstBitWriter * bs,
const VAEncSliceParameterBufferHEVC * slice_param,
GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture,
guint8 nal_unit_type)
{
const VAEncPictureParameterBufferHEVC *const pic_param = picture->param;
guint8 no_output_of_prior_pics_flag = 0;
guint8 dependent_slice_segment_flag = 0;
guint8 short_term_ref_pic_set_sps_flag = 0;
guint8 num_ref_idx_active_override_flag = 0;
guint8 slice_deblocking_filter_disabled_flag = 0;
/* first_slice_segment_in_pic_flag */
WRITE_UINT32 (bs, encoder->first_slice_segment_in_pic_flag, 1);
/* Fixme: For all IRAP pics */
/* no_output_of_prior_pics_flag */
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
WRITE_UINT32 (bs, no_output_of_prior_pics_flag, 1);
/* slice_pic_parameter_set_id */
WRITE_UE (bs, slice_param->slice_pic_parameter_set_id);
/* slice_segment_address , bits_size = Ceil(Log2(PicSizeInCtbsY)) */
if (!encoder->first_slice_segment_in_pic_flag) {
guint pic_size_ctb = encoder->ctu_width * encoder->ctu_height;
guint bits_size = (guint) ceil ((log2 (pic_size_ctb)));
WRITE_UINT32 (bs, slice_param->slice_segment_address, bits_size);
}
if (!dependent_slice_segment_flag) {
/* slice_type */
WRITE_UE (bs, slice_param->slice_type);
if (!pic_param->pic_fields.bits.idr_pic_flag) {
/* slice_pic_order_cnt_lsb */
WRITE_UINT32 (bs, picture->poc, encoder->log2_max_pic_order_cnt);
/* short_term_ref_pic_set_sps_flag */
WRITE_UINT32 (bs, short_term_ref_pic_set_sps_flag, 1);
/*---------- Write short_term_ref_pic_set(0) ----------- */
{
guint num_positive_pics = 0, num_negative_pics = 0;
guint delta_poc_s0_minus1 = 0, delta_poc_s1_minus1 = 0;
guint used_by_curr_pic_s0_flag = 0, used_by_curr_pic_s1_flag = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_P) {
num_negative_pics = 1;
num_positive_pics = 0;
delta_poc_s0_minus1 =
picture->poc - slice_param->ref_pic_list0[0].pic_order_cnt - 1;
used_by_curr_pic_s0_flag = 1;
delta_poc_s1_minus1 = 0;
used_by_curr_pic_s1_flag = 0;
}
if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
num_negative_pics = 1;
num_positive_pics = 1;
delta_poc_s0_minus1 =
picture->poc - slice_param->ref_pic_list0[0].pic_order_cnt - 1;
used_by_curr_pic_s0_flag = 1;
delta_poc_s1_minus1 =
slice_param->ref_pic_list1[0].pic_order_cnt - picture->poc - 1;
used_by_curr_pic_s1_flag = 1;
}
/* num_negative_pics */
WRITE_UE (bs, num_negative_pics);
/* num_positive_pics */
WRITE_UE (bs, num_positive_pics);
if (num_negative_pics) {
/* delta_poc_s0_minus1 */
WRITE_UE (bs, delta_poc_s0_minus1);
/* used_by_curr_pic_s0_flag */
WRITE_UINT32 (bs, used_by_curr_pic_s0_flag, 1);
}
if (num_positive_pics) {
/* delta_poc_s1_minus1 */
WRITE_UE (bs, delta_poc_s1_minus1);
/* used_by_curr_pic_s1_flag */
WRITE_UINT32 (bs, used_by_curr_pic_s1_flag, 1);
}
}
/* slice_temporal_mvp_enabled_flag */
if (encoder->sps_temporal_mvp_enabled_flag)
WRITE_UINT32 (bs,
slice_param->slice_fields.bits.slice_temporal_mvp_enabled_flag, 1);
}
if (encoder->sample_adaptive_offset_enabled_flag) {
WRITE_UINT32 (bs, slice_param->slice_fields.bits.slice_sao_luma_flag, 1);
WRITE_UINT32 (bs, slice_param->slice_fields.bits.slice_sao_chroma_flag,
1);
}
if (slice_param->slice_type == GST_H265_P_SLICE ||
slice_param->slice_type == GST_H265_B_SLICE) {
/* num_ref_idx_active_override_flag */
WRITE_UINT32 (bs, num_ref_idx_active_override_flag, 1);
/* mvd_l1_zero_flag */
if (slice_param->slice_type == GST_H265_B_SLICE)
WRITE_UINT32 (bs, slice_param->slice_fields.bits.mvd_l1_zero_flag, 1);
/* cabac_init_present_flag == FALSE */
/* cabac_init_flag = FALSE */
/* collocated_from_l0_flag */
if (slice_param->slice_fields.bits.slice_temporal_mvp_enabled_flag) {
if (slice_param->slice_type == GST_H265_B_SLICE)
WRITE_UINT32 (bs,
slice_param->slice_fields.bits.collocated_from_l0_flag, 1);
}
/* five_minus_max_num_merge_cand */
WRITE_UE (bs, 5 - slice_param->max_num_merge_cand);
}
/* slice_qp_delta */
WRITE_SE (bs, slice_param->slice_qp_delta);
if (pic_param->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag &&
(slice_param->slice_fields.bits.slice_sao_luma_flag
|| slice_param->slice_fields.bits.slice_sao_chroma_flag
|| !slice_deblocking_filter_disabled_flag))
WRITE_UINT32 (bs, slice_param->slice_fields.bits.
slice_loop_filter_across_slices_enabled_flag, 1);
}
/* byte_alignment() */
{
/* alignment_bit_equal_to_one */
WRITE_UINT32 (bs, 1, 1);
while (GST_BIT_WRITER_BIT_SIZE (bs) % 8 != 0) {
/* alignment_bit_equal_to_zero */
WRITE_UINT32 (bs, 0, 1);
}
}
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Slice NAL unit");
return FALSE;
}
}
static inline void
_check_vps_sps_pps_status (GstVaapiEncoderH265 * encoder,
const guint8 * nal, guint32 size)
{
guint8 nal_type;
G_GNUC_UNUSED gsize ret; /* FIXME */
g_assert (size);
if (encoder->vps_data && encoder->sps_data && encoder->pps_data)
return;
nal_type = (nal[0] & 0x7E) >> 1;
switch (nal_type) {
case GST_H265_NAL_VPS:
encoder->vps_data = gst_buffer_new_allocate (NULL, size, NULL);
ret = gst_buffer_fill (encoder->vps_data, 0, nal, size);
g_assert (ret == size);
break;
case GST_H265_NAL_SPS:
encoder->sps_data = gst_buffer_new_allocate (NULL, size, NULL);
ret = gst_buffer_fill (encoder->sps_data, 0, nal, size);
g_assert (ret == size);
break;
case GST_H265_NAL_PPS:
encoder->pps_data = gst_buffer_new_allocate (NULL, size, NULL);
ret = gst_buffer_fill (encoder->pps_data, 0, nal, size);
g_assert (ret == size);
break;
default:
break;
}
}
/* Determines the largest supported profile by the underlying hardware */
static gboolean
ensure_hw_profile_limits (GstVaapiEncoderH265 * encoder)
{
GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
GArray *profiles;
guint i, profile_idc, max_profile_idc;
if (encoder->hw_max_profile_idc)
return TRUE;
profiles = gst_vaapi_display_get_encode_profiles (display);
if (!profiles)
return FALSE;
max_profile_idc = 0;
for (i = 0; i < profiles->len; i++) {
const GstVaapiProfile profile =
g_array_index (profiles, GstVaapiProfile, i);
profile_idc = gst_vaapi_utils_h265_get_profile_idc (profile);
if (!profile_idc)
continue;
if (max_profile_idc < profile_idc)
max_profile_idc = profile_idc;
}
g_array_unref (profiles);
encoder->hw_max_profile_idc = max_profile_idc;
return TRUE;
}
/* Derives the profile supported by the underlying hardware */
static gboolean
ensure_hw_profile (GstVaapiEncoderH265 * encoder)
{
GstVaapiDisplay *const display = GST_VAAPI_ENCODER_DISPLAY (encoder);
GstVaapiEntrypoint entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
GstVaapiProfile profile, profiles[4];
guint i, num_profiles = 0;
profiles[num_profiles++] = encoder->profile;
switch (encoder->profile) {
case GST_VAAPI_PROFILE_H265_MAIN_STILL_PICTURE:
profiles[num_profiles++] = GST_VAAPI_PROFILE_H265_MAIN;
// fall-through
case GST_VAAPI_PROFILE_H265_MAIN:
profiles[num_profiles++] = GST_VAAPI_PROFILE_H265_MAIN10;
break;
default:
break;
}
profile = GST_VAAPI_PROFILE_UNKNOWN;
for (i = 0; i < num_profiles; i++) {
if (gst_vaapi_display_has_encoder (display, profiles[i], entrypoint)) {
profile = profiles[i];
break;
}
}
if (profile == GST_VAAPI_PROFILE_UNKNOWN)
goto error_unsupported_profile;
GST_VAAPI_ENCODER_CAST (encoder)->profile = profile;
return TRUE;
/* ERRORS */
error_unsupported_profile:
{
GST_ERROR ("unsupported HW profile (0x%08x)", encoder->profile);
return FALSE;
}
}
/* Check target decoder constraints */
static gboolean
ensure_profile_limits (GstVaapiEncoderH265 * encoder)
{
if (!encoder->max_profile_idc
|| encoder->profile_idc <= encoder->max_profile_idc)
return TRUE;
GST_WARNING
("Needs to lower coding tools to meet target decoder constraints");
GST_WARNING ("Only supporting Main profile, reset profile to Main");
encoder->profile = GST_VAAPI_PROFILE_H265_MAIN;;
encoder->profile_idc =
gst_vaapi_utils_h265_get_profile_idc (encoder->profile);
return TRUE;
}
/* Derives the minimum profile from the active coding tools */
static gboolean
ensure_profile (GstVaapiEncoderH265 * encoder)
{
GstVaapiProfile profile;
/* Always start from "Main" profile for maximum
compatibility */
profile = GST_VAAPI_PROFILE_H265_MAIN;
encoder->profile = profile;
encoder->profile_idc = gst_vaapi_utils_h265_get_profile_idc (profile);
return TRUE;
}
/* Derives the minimum tier from the active coding tools */
static gboolean
ensure_tier (GstVaapiEncoderH265 * encoder)
{
encoder->tier = GST_VAAPI_TIER_H265_MAIN;
/*Fixme: Derive proper tier based on upstream caps or limits, coding tools etc */
return TRUE;
}
/* Derives the level from the currently set limits */
static gboolean
ensure_level (GstVaapiEncoderH265 * encoder)
{
const GstVaapiH265LevelLimits *limits_table;
guint i, num_limits, PicSizeInSamplesY;
PicSizeInSamplesY = encoder->luma_width * encoder->luma_height;
limits_table = gst_vaapi_utils_h265_get_level_limits_table (&num_limits);
for (i = 0; i < num_limits; i++) {
const GstVaapiH265LevelLimits *const limits = &limits_table[i];
if (PicSizeInSamplesY <= limits->MaxLumaPs)
break;
/* Fixme: Add more constraint checking:tier (extracted from caps), cpb size,
* bitrate, num_tile_columns and num_tile_rows */
}
if (i == num_limits)
goto error_unsupported_level;
encoder->level = limits_table[i].level;
encoder->level_idc = limits_table[i].level_idc;
return TRUE;
/* ERRORS */
error_unsupported_level:
{
GST_ERROR ("failed to find a suitable level matching codec config");
return FALSE;
}
}
/* Enable "high-compression" tuning options */
static gboolean
ensure_tuning_high_compression (GstVaapiEncoderH265 * encoder)
{
guint8 profile_idc;
if (!ensure_hw_profile_limits (encoder))
return FALSE;
profile_idc = encoder->hw_max_profile_idc;
if (encoder->max_profile_idc && encoder->max_profile_idc < profile_idc)
profile_idc = encoder->max_profile_idc;
/* Tuning options */
if (!encoder->num_bframes)
encoder->num_bframes = 3;
return TRUE;
}
/* Ensure tuning options */
static gboolean
ensure_tuning (GstVaapiEncoderH265 * encoder)
{
gboolean success;
switch (GST_VAAPI_ENCODER_TUNE (encoder)) {
case GST_VAAPI_ENCODER_TUNE_HIGH_COMPRESSION:
success = ensure_tuning_high_compression (encoder);
break;
default:
success = TRUE;
break;
}
return success;
}
/* Handle new GOP starts */
static void
reset_gop_start (GstVaapiEncoderH265 * encoder)
{
GstVaapiH265ReorderPool *const reorder_pool = &encoder->reorder_pool;
reorder_pool->frame_index = 1;
reorder_pool->cur_present_index = 0;
++encoder->idr_num;
}
/* Marks the supplied picture as a B-frame */
static void
set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH265 * encoder)
{
g_assert (pic && encoder);
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_B;
}
/* Marks the supplied picture as a P-frame */
static void
set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH265 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_P;
}
/* Marks the supplied picture as an I-frame */
static void
set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH265 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_I;
g_assert (pic->frame);
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
}
/* Marks the supplied picture as an IDR frame */
static void
set_idr_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH265 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_I;
pic->poc = 0;
GST_VAAPI_ENC_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_IDR);
g_assert (pic->frame);
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (pic->frame);
}
/* Marks the supplied picture a a key-frame */
static void
set_key_frame (GstVaapiEncPicture * picture,
GstVaapiEncoderH265 * encoder, gboolean is_idr)
{
if (is_idr) {
reset_gop_start (encoder);
set_idr_frame (picture, encoder);
} else
set_i_frame (picture, encoder);
}
/* Adds the supplied video parameter set header (VPS) to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_vps_header (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncPackedHeader *packed_vps;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_vps_param = { 0 };
const VAEncSequenceParameterBufferHEVC *const seq_param = sequence->param;
GstVaapiProfile profile = encoder->profile;
guint32 data_bit_size;
guint8 *data;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H265_NAL_VPS);
bs_write_vps (&bs, encoder, picture, seq_param, profile);
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
data = GST_BIT_WRITER_DATA (&bs);
packed_vps_param.type = VAEncPackedHeaderSequence;
packed_vps_param.bit_length = data_bit_size;
packed_vps_param.has_emulation_bytes = 0;
packed_vps = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_vps_param, sizeof (packed_vps_param),
data, (data_bit_size + 7) / 8);
g_assert (packed_vps);
gst_vaapi_enc_picture_add_packed_header (picture, packed_vps);
gst_vaapi_codec_object_replace (&packed_vps, NULL);
/* store vps data */
_check_vps_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write VPS NAL unit");
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
}
/* Adds the supplied sequence header (SPS) to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_sequence_header (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncPackedHeader *packed_seq;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_seq_param = { 0 };
const VAEncSequenceParameterBufferHEVC *const seq_param = sequence->param;
GstVaapiProfile profile = encoder->profile;
guint32 data_bit_size;
guint8 *data;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H265_NAL_SPS);
bs_write_sps (&bs, encoder, picture, seq_param, profile);
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
data = GST_BIT_WRITER_DATA (&bs);
packed_seq_param.type = VAEncPackedHeaderSequence;
packed_seq_param.bit_length = data_bit_size;
packed_seq_param.has_emulation_bytes = 0;
packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_seq_param, sizeof (packed_seq_param),
data, (data_bit_size + 7) / 8);
g_assert (packed_seq);
gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
gst_vaapi_codec_object_replace (&packed_seq, NULL);
/* store sps data */
_check_vps_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SPS NAL unit");
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
}
/* Adds the supplied picture header (PPS) to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_picture_header (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture)
{
GstVaapiEncPackedHeader *packed_pic;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_pic_param = { 0 };
const VAEncPictureParameterBufferHEVC *const pic_param = picture->param;
guint32 data_bit_size;
guint8 *data;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H265_NAL_PPS);
bs_write_pps (&bs, pic_param);
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
data = GST_BIT_WRITER_DATA (&bs);
packed_pic_param.type = VAEncPackedHeaderPicture;
packed_pic_param.bit_length = data_bit_size;
packed_pic_param.has_emulation_bytes = 0;
packed_pic = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_pic_param, sizeof (packed_pic_param),
data, (data_bit_size + 7) / 8);
g_assert (packed_pic);
gst_vaapi_enc_picture_add_packed_header (picture, packed_pic);
gst_vaapi_codec_object_replace (&packed_pic, NULL);
/* store pps data */
_check_vps_sps_pps_status (encoder, data + 4, data_bit_size / 8 - 4);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write PPS NAL unit");
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
}
static gboolean
get_nal_unit_type (GstVaapiEncPicture * picture, guint8 * nal_unit_type)
{
switch (picture->type) {
case GST_VAAPI_PICTURE_TYPE_I:
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
*nal_unit_type = GST_H265_NAL_SLICE_IDR_W_RADL;
else
*nal_unit_type = GST_H265_NAL_SLICE_TRAIL_R;
break;
case GST_VAAPI_PICTURE_TYPE_P:
*nal_unit_type = GST_H265_NAL_SLICE_TRAIL_R;
break;
case GST_VAAPI_PICTURE_TYPE_B:
*nal_unit_type = GST_H265_NAL_SLICE_TRAIL_N;
break;
default:
return FALSE;
}
return TRUE;
}
/* Adds the supplied slice header to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_slice_header (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
{
GstVaapiEncPackedHeader *packed_slice;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_slice_param = { 0 };
const VAEncSliceParameterBufferHEVC *const slice_param = slice->param;
guint32 data_bit_size;
guint8 *data;
guint8 nal_unit_type;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
if (!get_nal_unit_type (picture, &nal_unit_type))
goto bs_error;
bs_write_nal_header (&bs, nal_unit_type);
bs_write_slice (&bs, slice_param, encoder, picture, nal_unit_type);
data_bit_size = GST_BIT_WRITER_BIT_SIZE (&bs);
data = GST_BIT_WRITER_DATA (&bs);
packed_slice_param.type = VAEncPackedHeaderSlice;
packed_slice_param.bit_length = data_bit_size;
packed_slice_param.has_emulation_bytes = 0;
packed_slice = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_slice_param, sizeof (packed_slice_param),
data, (data_bit_size + 7) / 8);
g_assert (packed_slice);
gst_vaapi_enc_slice_add_packed_header (slice, packed_slice);
gst_vaapi_codec_object_replace (&packed_slice, NULL);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Slice NAL unit header");
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
}
/* Reference picture management */
static void
reference_pic_free (GstVaapiEncoderH265 * encoder, GstVaapiEncoderH265Ref * ref)
{
if (!ref)
return;
if (ref->pic)
gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), ref->pic);
g_slice_free (GstVaapiEncoderH265Ref, ref);
}
static inline GstVaapiEncoderH265Ref *
reference_pic_create (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
{
GstVaapiEncoderH265Ref *const ref = g_slice_new0 (GstVaapiEncoderH265Ref);
ref->pic = surface;
ref->poc = picture->poc;
return ref;
}
static gboolean
reference_list_update (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
{
GstVaapiEncoderH265Ref *ref;
GstVaapiH265RefPool *const ref_pool = &encoder->ref_pool;
if (GST_VAAPI_PICTURE_TYPE_B == picture->type) {
gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), surface);
return TRUE;
}
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
while (!g_queue_is_empty (&ref_pool->ref_list))
reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
} else if (g_queue_get_length (&ref_pool->ref_list) >=
ref_pool->max_ref_frames) {
reference_pic_free (encoder, g_queue_pop_head (&ref_pool->ref_list));
}
ref = reference_pic_create (encoder, picture, surface);
g_queue_push_tail (&ref_pool->ref_list, ref);
g_assert (g_queue_get_length (&ref_pool->ref_list) <=
ref_pool->max_ref_frames);
return TRUE;
}
static gboolean
reference_list_init (GstVaapiEncoderH265 * encoder,
GstVaapiEncPicture * picture,
GstVaapiEncoderH265Ref ** reflist_0,
guint * reflist_0_count,
GstVaapiEncoderH265Ref ** reflist_1, guint * reflist_1_count)
{
GstVaapiEncoderH265Ref *tmp;
GstVaapiH265RefPool *const ref_pool = &encoder->ref_pool;
GList *iter, *list_0_start = NULL, *list_1_start = NULL;
guint count;
*reflist_0_count = 0;
*reflist_1_count = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
return TRUE;
iter = g_queue_peek_tail_link (&ref_pool->ref_list);
for (; iter; iter = g_list_previous (iter)) {
tmp = (GstVaapiEncoderH265Ref *) iter->data;
g_assert (tmp && tmp->poc != picture->poc);
if (_poc_greater_than (picture->poc, tmp->poc, encoder->max_pic_order_cnt)) {
list_0_start = iter;
list_1_start = g_list_next (iter);
break;
}
}
/* order reflist_0 */
g_assert (list_0_start);
iter = list_0_start;
count = 0;
for (; iter; iter = g_list_previous (iter)) {
reflist_0[count] = (GstVaapiEncoderH265Ref *) iter->data;
++count;
}
*reflist_0_count = count;
if (picture->type != GST_VAAPI_PICTURE_TYPE_B)
return TRUE;
/* order reflist_1 */
count = 0;
iter = list_1_start;
for (; iter; iter = g_list_next (iter)) {
reflist_1[count] = (GstVaapiEncoderH265Ref *) iter->data;
++count;
}
*reflist_1_count = count;
return TRUE;
}
/* Fills in VA sequence parameter buffer */
static gboolean
fill_sequence (GstVaapiEncoderH265 * encoder, GstVaapiEncSequence * sequence)
{
VAEncSequenceParameterBufferHEVC *const seq_param = sequence->param;
memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferHEVC));
seq_param->general_profile_idc = encoder->profile_idc;
seq_param->general_level_idc = encoder->level_idc;
seq_param->general_tier_flag = 0; /* Fixme: use the tier flag extracted from upstream caps or calcuted one */
seq_param->intra_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder);
seq_param->intra_idr_period = encoder->idr_period;
seq_param->ip_period = 1 + encoder->num_bframes;
seq_param->ip_period = seq_param->intra_period > 1 ?
(1 + encoder->num_bframes) : 0;
seq_param->bits_per_second = encoder->bitrate_bits;
seq_param->pic_width_in_luma_samples = encoder->luma_width;
seq_param->pic_height_in_luma_samples = encoder->luma_height;
/*sequence field values */
seq_param->seq_fields.value = 0;
seq_param->seq_fields.bits.chroma_format_idc = 1;
seq_param->seq_fields.bits.separate_colour_plane_flag = 0;
seq_param->seq_fields.bits.bit_depth_luma_minus8 = 0;
seq_param->seq_fields.bits.bit_depth_chroma_minus8 = 0;
seq_param->seq_fields.bits.scaling_list_enabled_flag = FALSE;
seq_param->seq_fields.bits.strong_intra_smoothing_enabled_flag = TRUE;
seq_param->seq_fields.bits.amp_enabled_flag = TRUE;
seq_param->seq_fields.bits.sample_adaptive_offset_enabled_flag =
encoder->sample_adaptive_offset_enabled_flag = FALSE;
seq_param->seq_fields.bits.pcm_enabled_flag = FALSE;
seq_param->seq_fields.bits.pcm_loop_filter_disabled_flag = FALSE;
seq_param->seq_fields.bits.sps_temporal_mvp_enabled_flag =
encoder->sps_temporal_mvp_enabled_flag = TRUE;
/* Based on 32x32 CTU */
seq_param->log2_min_luma_coding_block_size_minus3 = 0;
seq_param->log2_diff_max_min_luma_coding_block_size = 2;
seq_param->log2_min_transform_block_size_minus2 = 0;
seq_param->log2_diff_max_min_transform_block_size = 3;
seq_param->max_transform_hierarchy_depth_inter = 3;
seq_param->max_transform_hierarchy_depth_intra = 3;
seq_param->pcm_sample_bit_depth_luma_minus1 = 0;
seq_param->pcm_sample_bit_depth_chroma_minus1 = 0;
seq_param->log2_min_pcm_luma_coding_block_size_minus3 = 0;
seq_param->log2_max_pcm_luma_coding_block_size_minus3 = 0;
/* VUI parameters are always set, at least for timing_info (framerate) */
seq_param->vui_parameters_present_flag = TRUE;
if (seq_param->vui_parameters_present_flag) {
seq_param->vui_fields.bits.aspect_ratio_info_present_flag = TRUE;
if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
const GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
seq_param->aspect_ratio_idc = 0xff;
seq_param->sar_width = GST_VIDEO_INFO_PAR_N (vip);
seq_param->sar_height = GST_VIDEO_INFO_PAR_D (vip);
}
seq_param->vui_fields.bits.bitstream_restriction_flag = FALSE;
seq_param->vui_fields.bits.vui_timing_info_present_flag = TRUE;
if (seq_param->vui_fields.bits.vui_timing_info_present_flag) {
seq_param->vui_num_units_in_tick = GST_VAAPI_ENCODER_FPS_D (encoder);
seq_param->vui_time_scale = GST_VAAPI_ENCODER_FPS_N (encoder);
}
}
return TRUE;
}
/* Fills in VA picture parameter buffer */
static gboolean
fill_picture (GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture,
GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface)
{
VAEncPictureParameterBufferHEVC *const pic_param = picture->param;
GstVaapiH265RefPool *const ref_pool = &encoder->ref_pool;
GstVaapiEncoderH265Ref *ref_pic;
GList *reflist;
guint i;
guint8 nal_unit_type, no_output_of_prior_pics_flag = 0;
memset (pic_param, 0, sizeof (VAEncPictureParameterBufferHEVC));
pic_param->decoded_curr_pic.picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface);
pic_param->decoded_curr_pic.pic_order_cnt = picture->poc;
pic_param->decoded_curr_pic.flags = 0;
i = 0;
if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
for (reflist = g_queue_peek_head_link (&ref_pool->ref_list);
reflist; reflist = g_list_next (reflist)) {
ref_pic = reflist->data;
g_assert (ref_pic && ref_pic->pic &&
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic) != VA_INVALID_ID);
pic_param->reference_frames[i].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic);
++i;
}
g_assert (i <= 15 && i <= ref_pool->max_ref_frames);
}
for (; i < 15; ++i) {
pic_param->reference_frames[i].picture_id = VA_INVALID_SURFACE;
pic_param->reference_frames[i].flags = 0;
}
pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf);
/* slice_temporal_mvp_enable_flag == FALSE */
pic_param->collocated_ref_pic_index = 0xFF;
pic_param->last_picture = 0;
pic_param->pic_init_qp = encoder->init_qp;
pic_param->num_ref_idx_l0_default_active_minus1 =
(ref_pool->max_reflist0_count ? (ref_pool->max_reflist0_count - 1) : 0);
pic_param->num_ref_idx_l1_default_active_minus1 =
(ref_pool->max_reflist1_count ? (ref_pool->max_reflist1_count - 1) : 0);
get_nal_unit_type (picture, &nal_unit_type);
pic_param->nal_unit_type = nal_unit_type;
/* set picture fields */
pic_param->pic_fields.value = 0;
pic_param->pic_fields.bits.idr_pic_flag =
GST_VAAPI_ENC_PICTURE_IS_IDR (picture);
pic_param->pic_fields.bits.coding_type = picture->type;
if (picture->type != GST_VAAPI_PICTURE_TYPE_B)
pic_param->pic_fields.bits.reference_pic_flag = TRUE;
pic_param->pic_fields.bits.sign_data_hiding_enabled_flag = FALSE;
pic_param->pic_fields.bits.transform_skip_enabled_flag = TRUE;
pic_param->pic_fields.bits.pps_loop_filter_across_slices_enabled_flag = TRUE;
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
no_output_of_prior_pics_flag = 1;
pic_param->pic_fields.bits.no_output_of_prior_pics_flag =
no_output_of_prior_pics_flag;
return TRUE;
}
/* Adds slice headers to picture */
static gboolean
add_slice_headers (GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture,
GstVaapiEncoderH265Ref ** reflist_0, guint reflist_0_count,
GstVaapiEncoderH265Ref ** reflist_1, guint reflist_1_count)
{
VAEncSliceParameterBufferHEVC *slice_param;
GstVaapiEncSlice *slice;
guint slice_of_ctus, slice_mod_ctus, cur_slice_ctus;
guint ctu_size;
guint ctu_width_round_factor;
guint last_ctu_index;
guint i_slice, i_ref;
g_assert (picture);
ctu_size = encoder->ctu_width * encoder->ctu_height;
g_assert (encoder->num_slices && encoder->num_slices < ctu_size);
slice_of_ctus = ctu_size / encoder->num_slices;
slice_mod_ctus = ctu_size % encoder->num_slices;
last_ctu_index = 0;
for (i_slice = 0;
i_slice < encoder->num_slices && (last_ctu_index < ctu_size); ++i_slice) {
cur_slice_ctus = slice_of_ctus;
if (slice_mod_ctus) {
++cur_slice_ctus;
--slice_mod_ctus;
}
/* Work-around for satisfying the VA-Intel driver.
* The driver only support multi slice begin from row start address */
ctu_width_round_factor =
encoder->ctu_width - (cur_slice_ctus % encoder->ctu_width);
cur_slice_ctus += ctu_width_round_factor;
if ((last_ctu_index + cur_slice_ctus) > ctu_size)
cur_slice_ctus = ctu_size - last_ctu_index;
slice = GST_VAAPI_ENC_SLICE_NEW (HEVC, encoder);
g_assert (slice && slice->param_id != VA_INVALID_ID);
slice_param = slice->param;
memset (slice_param, 0, sizeof (VAEncSliceParameterBufferHEVC));
if (i_slice == 0) {
encoder->first_slice_segment_in_pic_flag = TRUE;
slice_param->slice_segment_address = 0;
} else {
encoder->first_slice_segment_in_pic_flag = FALSE;
slice_param->slice_segment_address = last_ctu_index;
}
slice_param->num_ctu_in_slice = cur_slice_ctus;
slice_param->slice_type = h265_get_slice_type (picture->type);
slice_param->slice_pic_parameter_set_id = 0;
if (picture->type != GST_VAAPI_PICTURE_TYPE_I && reflist_0_count > 0)
slice_param->num_ref_idx_l0_active_minus1 = reflist_0_count - 1;
else
slice_param->num_ref_idx_l0_active_minus1 = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_B && reflist_1_count > 0)
slice_param->num_ref_idx_l1_active_minus1 = reflist_1_count - 1;
else
slice_param->num_ref_idx_l1_active_minus1 = 0;
g_assert (slice_param->num_ref_idx_l0_active_minus1 == 0);
g_assert (slice_param->num_ref_idx_l1_active_minus1 == 0);
i_ref = 0;
if (picture->type != GST_VAAPI_PICTURE_TYPE_I) {
for (; i_ref < reflist_0_count; ++i_ref) {
slice_param->ref_pic_list0[i_ref].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_0[i_ref]->pic);
slice_param->ref_pic_list0[i_ref].pic_order_cnt = reflist_0[i_ref]->poc;
}
g_assert (i_ref == 1);
}
for (; i_ref < G_N_ELEMENTS (slice_param->ref_pic_list0); ++i_ref) {
slice_param->ref_pic_list0[i_ref].picture_id = VA_INVALID_SURFACE;
slice_param->ref_pic_list0[i_ref].flags = 0;
}
i_ref = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
for (; i_ref < reflist_1_count; ++i_ref) {
slice_param->ref_pic_list1[i_ref].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_1[i_ref]->pic);
slice_param->ref_pic_list1[i_ref].pic_order_cnt = reflist_1[i_ref]->poc;
}
g_assert (i_ref == 1);
}
for (; i_ref < G_N_ELEMENTS (slice_param->ref_pic_list1); ++i_ref) {
slice_param->ref_pic_list1[i_ref].picture_id = VA_INVALID_SURFACE;
slice_param->ref_pic_list1[i_ref].flags = 0;
}
slice_param->max_num_merge_cand = 5; /* MaxNumMergeCand */
slice_param->slice_qp_delta = encoder->init_qp - encoder->min_qp;
slice_param->slice_fields.value = 0;
slice_param->slice_fields.bits.
slice_loop_filter_across_slices_enabled_flag = TRUE;
/* set calculation for next slice */
last_ctu_index += cur_slice_ctus;
if ((i_slice == encoder->num_slices - 1) || (last_ctu_index == ctu_size))
slice_param->slice_fields.bits.last_slice_of_pic_flag = 1;
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_SLICE)
&& !add_packed_slice_header (encoder, picture, slice))
goto error_create_packed_slice_hdr;
gst_vaapi_enc_picture_add_slice (picture, slice);
gst_vaapi_codec_object_replace (&slice, NULL);
}
if (i_slice < encoder->num_slices)
GST_WARNING
("Using less number of slices than requested, Number of slices per pictures is %d",
i_slice);
g_assert (last_ctu_index == ctu_size);
return TRUE;
error_create_packed_slice_hdr:
{
GST_ERROR ("failed to create packed slice header buffer");
gst_vaapi_codec_object_replace (&slice, NULL);
return FALSE;
}
}
/* Generates and submits SPS header accordingly into the bitstream */
static gboolean
ensure_sequence (GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiEncSequence *sequence = NULL;
/* submit an SPS header before every new I-frame, if codec config changed */
if (!encoder->config_changed || picture->type != GST_VAAPI_PICTURE_TYPE_I)
return TRUE;
sequence = GST_VAAPI_ENC_SEQUENCE_NEW (HEVC, encoder);
if (!sequence || !fill_sequence (encoder, sequence))
goto error_create_seq_param;
/* add packed vps and sps headers */
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_SEQUENCE)
&& !(add_packed_vps_header (encoder, picture, sequence)
&& add_packed_sequence_header (encoder, picture, sequence))) {
goto error_create_packed_seq_hdr;
}
if (sequence) {
gst_vaapi_enc_picture_set_sequence (picture, sequence);
gst_vaapi_codec_object_replace (&sequence, NULL);
}
encoder->config_changed = FALSE;
return TRUE;
/* ERRORS */
error_create_seq_param:
{
GST_ERROR ("failed to create sequence parameter buffer (SPS)");
gst_vaapi_codec_object_replace (&sequence, NULL);
return FALSE;
}
error_create_packed_seq_hdr:
{
GST_ERROR ("failed to create packed sequence header buffer");
gst_vaapi_codec_object_replace (&sequence, NULL);
return FALSE;
}
}
/* Generates and submits PPS header accordingly into the bitstream */
static gboolean
ensure_picture (GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture,
GstVaapiCodedBufferProxy * codedbuf_proxy, GstVaapiSurfaceProxy * surface)
{
GstVaapiCodedBuffer *const codedbuf =
GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (codedbuf_proxy);
gboolean res = FALSE;
res = fill_picture (encoder, picture, codedbuf, surface);
if (!res)
return FALSE;
if (picture->type == GST_VAAPI_PICTURE_TYPE_I &&
(GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_PICTURE)
&& !add_packed_picture_header (encoder, picture)) {
GST_ERROR ("set picture packed header failed");
return FALSE;
}
return TRUE;
}
/* Generates slice headers */
static gboolean
ensure_slices (GstVaapiEncoderH265 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiEncoderH265Ref *reflist_0[15];
GstVaapiEncoderH265Ref *reflist_1[15];
GstVaapiH265RefPool *const ref_pool = &encoder->ref_pool;
guint reflist_0_count = 0, reflist_1_count = 0;
g_assert (picture);
if (picture->type != GST_VAAPI_PICTURE_TYPE_I &&
!reference_list_init (encoder, picture,
reflist_0, &reflist_0_count, reflist_1, &reflist_1_count)) {
GST_ERROR ("reference list reorder failed");
return FALSE;
}
g_assert (reflist_0_count + reflist_1_count <= ref_pool->max_ref_frames);
if (reflist_0_count > ref_pool->max_reflist0_count)
reflist_0_count = ref_pool->max_reflist0_count;
if (reflist_1_count > ref_pool->max_reflist1_count)
reflist_1_count = ref_pool->max_reflist1_count;
if (!add_slice_headers (encoder, picture,
reflist_0, reflist_0_count, reflist_1, reflist_1_count))
return FALSE;
return TRUE;
}
/* Estimates a good enough bitrate if none was supplied */
static void
ensure_bitrate (GstVaapiEncoderH265 * encoder)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
switch (GST_VAAPI_ENCODER_RATE_CONTROL (encoder)) {
case GST_VAAPI_RATECONTROL_CBR:
case GST_VAAPI_RATECONTROL_VBR:
case GST_VAAPI_RATECONTROL_VBR_CONSTRAINED:
if (!base_encoder->bitrate) {
/* Fixme: Provide better estimation */
/* Using a 1/6 compression ratio */
/* 12 bits per pixel fro yuv420 */
base_encoder->bitrate =
(encoder->luma_width * encoder->luma_height * 12 / 6) *
GST_VAAPI_ENCODER_FPS_N (encoder) /
GST_VAAPI_ENCODER_FPS_D (encoder) / 1000;
GST_INFO ("target bitrate computed to %u kbps", base_encoder->bitrate);
}
break;
default:
base_encoder->bitrate = 0;
break;
}
}
/* Constructs profile, tier and level information based on user-defined limits */
static GstVaapiEncoderStatus
ensure_profile_tier_level (GstVaapiEncoderH265 * encoder)
{
const GstVaapiProfile profile = encoder->profile;
const GstVaapiTierH265 tier = encoder->tier;
const GstVaapiLevelH265 level = encoder->level;
ensure_tuning (encoder);
if (!ensure_profile (encoder) || !ensure_profile_limits (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
/* Check HW constraints */
if (!ensure_hw_profile_limits (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
if (encoder->profile_idc > encoder->hw_max_profile_idc)
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
/* ensure tier */
if (!ensure_tier (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
if (!ensure_level (encoder))
/* Ensure bitrate if not set already and derive the right level to use */
ensure_bitrate (encoder);
if (!ensure_level (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
if (encoder->profile != profile || encoder->level != level
|| encoder->tier != tier) {
GST_DEBUG ("selected %s profile at tier %s and level %s",
gst_vaapi_utils_h265_get_profile_string (encoder->profile),
gst_vaapi_utils_h265_get_tier_string (encoder->tier),
gst_vaapi_utils_h265_get_level_string (encoder->level));
encoder->config_changed = TRUE;
}
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static void
reset_properties (GstVaapiEncoderH265 * encoder)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
GstVaapiH265ReorderPool *reorder_pool;
GstVaapiH265RefPool *ref_pool;
guint ctu_size;
if (encoder->idr_period < base_encoder->keyframe_period)
encoder->idr_period = base_encoder->keyframe_period;
if (encoder->idr_period > MAX_IDR_PERIOD)
encoder->idr_period = MAX_IDR_PERIOD;
/*Fixme: provide user control for idr_period ?? */
encoder->idr_period = base_encoder->keyframe_period * 2;
if (encoder->min_qp > encoder->init_qp ||
(GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP &&
encoder->min_qp < encoder->init_qp))
encoder->min_qp = encoder->init_qp;
ctu_size = encoder->ctu_width * encoder->ctu_height;
if (encoder->num_slices > (ctu_size + 1) / 2)
encoder->num_slices = (ctu_size + 1) / 2;
g_assert (encoder->num_slices);
if (encoder->num_bframes > (base_encoder->keyframe_period + 1) / 2)
encoder->num_bframes = (base_encoder->keyframe_period + 1) / 2;
if (encoder->num_bframes)
encoder->cts_offset = GST_SECOND * GST_VAAPI_ENCODER_FPS_D (encoder) /
GST_VAAPI_ENCODER_FPS_N (encoder);
else
encoder->cts_offset = 0;
/* init max_poc */
encoder->log2_max_pic_order_cnt =
h265_get_log2_max_pic_order_cnt (encoder->idr_period);
g_assert (encoder->log2_max_pic_order_cnt >= 4);
encoder->max_pic_order_cnt = (1 << encoder->log2_max_pic_order_cnt);
encoder->idr_num = 0;
/* Only Supporting a maximum of two reference frames */
if (encoder->num_bframes) {
encoder->max_dec_pic_buffering = 3;
encoder->max_num_reorder_pics = 1;
} else {
encoder->max_dec_pic_buffering =
(GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder) == 1) ? 1 : 2;
encoder->max_num_reorder_pics = 0;
}
ref_pool = &encoder->ref_pool;
ref_pool->max_reflist0_count = 1;
ref_pool->max_reflist1_count = encoder->num_bframes > 0;
ref_pool->max_ref_frames = ref_pool->max_reflist0_count
+ ref_pool->max_reflist1_count;
reorder_pool = &encoder->reorder_pool;
reorder_pool->frame_index = 0;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_encode (GstVaapiEncoder * base_encoder,
GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiEncoderStatus ret = GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN;
GstVaapiSurfaceProxy *reconstruct = NULL;
reconstruct = gst_vaapi_encoder_create_surface (base_encoder);
g_assert (GST_VAAPI_SURFACE_PROXY_SURFACE (reconstruct));
if (!ensure_sequence (encoder, picture))
goto error;
if (!ensure_picture (encoder, picture, codedbuf, reconstruct))
goto error;
if (!ensure_slices (encoder, picture))
goto error;
if (!gst_vaapi_enc_picture_encode (picture))
goto error;
if (!reference_list_update (encoder, picture, reconstruct))
goto error;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
error:
if (reconstruct)
gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder),
reconstruct);
return ret;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_flush (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiH265ReorderPool *reorder_pool;
GstVaapiEncPicture *pic;
reorder_pool = &encoder->reorder_pool;
reorder_pool->frame_index = 0;
reorder_pool->cur_present_index = 0;
while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
pic = (GstVaapiEncPicture *)
g_queue_pop_head (&reorder_pool->reorder_frame_list);
gst_vaapi_enc_picture_unref (pic);
}
g_queue_clear (&reorder_pool->reorder_frame_list);
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
/* Generate "codec-data" buffer */
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_get_codec_data (GstVaapiEncoder * base_encoder,
GstBuffer ** out_buffer_ptr)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
const guint32 configuration_version = 0x01;
const guint32 nal_length_size = 4;
GstMapInfo vps_info, sps_info, pps_info;
GstBitWriter bs;
GstBuffer *buffer;
guint min_spatial_segmentation_idc = 0;
guint num_arrays = 3;
if (!encoder->vps_data || !encoder->sps_data || !encoder->pps_data)
return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
if (gst_buffer_get_size (encoder->sps_data) < 4)
return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_HEADER;
if (!gst_buffer_map (encoder->vps_data, &vps_info, GST_MAP_READ))
goto error_map_vps_buffer;
if (!gst_buffer_map (encoder->sps_data, &sps_info, GST_MAP_READ))
goto error_map_sps_buffer;
if (!gst_buffer_map (encoder->pps_data, &pps_info, GST_MAP_READ))
goto error_map_pps_buffer;
/* Header */
gst_bit_writer_init (&bs,
(vps_info.size + sps_info.size + pps_info.size + 64) * 8);
WRITE_UINT32 (&bs, configuration_version, 8);
WRITE_UINT32 (&bs, sps_info.data[4], 8); /* profile_space | tier_flag | profile_idc */
WRITE_UINT32 (&bs, sps_info.data[5], 32); /* profile_compatibility_flag [0-31] */
/* progressive_source_flag | interlaced_source_flag | non_packed_constraint_flag |
* frame_only_constraint_flag | reserved_zero_bits[0-27] */
WRITE_UINT32 (&bs, sps_info.data[9], 32);
WRITE_UINT32 (&bs, sps_info.data[13], 16); /* reserved_zero_bits [28-43] */
WRITE_UINT32 (&bs, sps_info.data[15], 8); /* level_idc */
WRITE_UINT32 (&bs, 0x0f, 4); /* 1111 */
WRITE_UINT32 (&bs, min_spatial_segmentation_idc, 12); /* min_spatial_segmentation_idc */
WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
WRITE_UINT32 (&bs, 0x00, 2); /* parallelismType */
WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
WRITE_UINT32 (&bs, 0x01, 2); /* chroma_format_idc */
WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
WRITE_UINT32 (&bs, 0x01, 3); /* bit_depth_luma_minus8 */
WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
WRITE_UINT32 (&bs, 0x01, 3); /* bit_depth_chroma_minus8 */
WRITE_UINT32 (&bs, 0x00, 16); /* avgFramerate */
WRITE_UINT32 (&bs, 0x00, 2); /* constatnFramerate */
WRITE_UINT32 (&bs, 0x00, 3); /* numTemporalLayers */
WRITE_UINT32 (&bs, 0x00, 1); /* temporalIdNested */
WRITE_UINT32 (&bs, nal_length_size - 1, 2); /* lengthSizeMinusOne */
WRITE_UINT32 (&bs, 0x00, 8); /* numOfArrays */
WRITE_UINT32 (&bs, num_arrays, 8); /* numOfArrays */
/* Write VPS */
WRITE_UINT32 (&bs, 0x00, 1); /* array_completeness */
WRITE_UINT32 (&bs, 0x00, 1); /* reserved zero */
WRITE_UINT32 (&bs, GST_H265_NAL_VPS, 6); /* Nal_unit_type */
WRITE_UINT32 (&bs, 0x01, 16); /* numNalus, VPS count = 1 */
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
WRITE_UINT32 (&bs, vps_info.size, 16); /* VPS nalUnitLength */
gst_bit_writer_put_bytes (&bs, vps_info.data, vps_info.size);
/* Write SPS */
WRITE_UINT32 (&bs, 0x00, 1); /* array_completeness */
WRITE_UINT32 (&bs, 0x00, 1); /* reserved zero */
WRITE_UINT32 (&bs, GST_H265_NAL_SPS, 6); /* Nal_unit_type */
WRITE_UINT32 (&bs, 0x01, 16); /* numNalus, SPS count = 1 */
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
WRITE_UINT32 (&bs, sps_info.size, 16); /* SPS nalUnitLength */
gst_bit_writer_put_bytes (&bs, sps_info.data, sps_info.size);
/* Write PPS */
WRITE_UINT32 (&bs, 0x00, 1); /* array_completeness */
WRITE_UINT32 (&bs, 0x00, 1); /* reserved zero */
WRITE_UINT32 (&bs, GST_H265_NAL_PPS, 6); /* Nal_unit_type */
WRITE_UINT32 (&bs, 0x01, 16); /* numNalus, PPS count = 1 */
WRITE_UINT32 (&bs, pps_info.size, 16); /* PPS nalUnitLength */
gst_bit_writer_put_bytes (&bs, pps_info.data, pps_info.size);
gst_buffer_unmap (encoder->pps_data, &pps_info);
gst_buffer_unmap (encoder->sps_data, &sps_info);
gst_buffer_unmap (encoder->vps_data, &vps_info);
buffer = gst_buffer_new_wrapped (GST_BIT_WRITER_DATA (&bs),
GST_BIT_WRITER_BIT_SIZE (&bs) / 8);
if (!buffer)
goto error_alloc_buffer;
*out_buffer_ptr = buffer;
gst_bit_writer_clear (&bs, FALSE);
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
/* ERRORS */
bs_error:
{
GST_ERROR ("failed to write codec-data");
gst_buffer_unmap (encoder->vps_data, &vps_info);
gst_buffer_unmap (encoder->sps_data, &sps_info);
gst_buffer_unmap (encoder->pps_data, &pps_info);
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
error_map_vps_buffer:
{
GST_ERROR ("failed to map VPS packed header");
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
error_map_sps_buffer:
{
GST_ERROR ("failed to map SPS packed header");
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
error_map_pps_buffer:
{
GST_ERROR ("failed to map PPS packed header");
gst_buffer_unmap (encoder->sps_data, &sps_info);
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
error_alloc_buffer:
{
GST_ERROR ("failed to allocate codec-data buffer");
gst_bit_writer_clear (&bs, TRUE);
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
}
/* TODO */
/* The re-ordering algorithm is similar to what we implemented for
* h264 encoder. But We could have a better algorithm for hevc encoder
* by having B-frames as reference pictures */
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_reordering (GstVaapiEncoder * base_encoder,
GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiH265ReorderPool *reorder_pool = NULL;
GstVaapiEncPicture *picture;
gboolean is_idr = FALSE;
*output = NULL;
reorder_pool = &encoder->reorder_pool;
if (!frame) {
if (reorder_pool->reorder_state != GST_VAAPI_ENC_H265_REORD_DUMP_FRAMES)
return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
/* reorder_state = GST_VAAPI_ENC_H265_REORD_DUMP_FRAMES
dump B frames from queue, sometime, there may also have P frame or I frame */
g_assert (encoder->num_bframes > 0);
g_return_val_if_fail (!g_queue_is_empty (&reorder_pool->reorder_frame_list),
GST_VAAPI_ENCODER_STATUS_ERROR_UNKNOWN);
picture = g_queue_pop_head (&reorder_pool->reorder_frame_list);
g_assert (picture);
if (g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
reorder_pool->reorder_state = GST_VAAPI_ENC_H265_REORD_WAIT_FRAMES;
}
goto end;
}
/* new frame coming */
picture = GST_VAAPI_ENC_PICTURE_NEW (HEVC, encoder, frame);
if (!picture) {
GST_WARNING ("create H265 picture failed, frame timestamp:%"
GST_TIME_FORMAT, GST_TIME_ARGS (frame->pts));
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
++reorder_pool->cur_present_index;
picture->poc = ((reorder_pool->cur_present_index * 1) %
encoder->max_pic_order_cnt);
is_idr = (reorder_pool->frame_index == 0 ||
reorder_pool->frame_index >= encoder->idr_period);
/* check key frames */
if (is_idr || GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame) ||
(reorder_pool->frame_index %
GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder)) == 0) {
++reorder_pool->frame_index;
/* b frame enabled, check queue of reorder_frame_list */
if (encoder->num_bframes
&& !g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
GstVaapiEncPicture *p_pic;
p_pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list);
set_p_frame (p_pic, encoder);
g_queue_foreach (&reorder_pool->reorder_frame_list,
(GFunc) set_b_frame, encoder);
set_key_frame (picture, encoder, is_idr);
g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
picture = p_pic;
reorder_pool->reorder_state = GST_VAAPI_ENC_H265_REORD_DUMP_FRAMES;
} else { /* no b frames in queue */
set_key_frame (picture, encoder, is_idr);
g_assert (g_queue_is_empty (&reorder_pool->reorder_frame_list));
if (encoder->num_bframes)
reorder_pool->reorder_state = GST_VAAPI_ENC_H265_REORD_WAIT_FRAMES;
}
goto end;
}
/* new p/b frames coming */
++reorder_pool->frame_index;
if (reorder_pool->reorder_state == GST_VAAPI_ENC_H265_REORD_WAIT_FRAMES &&
g_queue_get_length (&reorder_pool->reorder_frame_list) <
encoder->num_bframes) {
g_queue_push_tail (&reorder_pool->reorder_frame_list, picture);
return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
}
set_p_frame (picture, encoder);
if (reorder_pool->reorder_state == GST_VAAPI_ENC_H265_REORD_WAIT_FRAMES) {
g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame,
encoder);
reorder_pool->reorder_state = GST_VAAPI_ENC_H265_REORD_DUMP_FRAMES;
g_assert (!g_queue_is_empty (&reorder_pool->reorder_frame_list));
}
end:
g_assert (picture);
frame = picture->frame;
if (GST_CLOCK_TIME_IS_VALID (frame->pts))
frame->pts += encoder->cts_offset;
*output = picture;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
const guint DEFAULT_SURFACES_COUNT = 3;
/* Fixme: Using only a rough approximation for bitstream headers..
* Fixme: Not taken into account: ScalingList, RefPicListModification, PredWeightTable */
/* Maximum sizes for common headers (in bits) */
enum
{
MAX_PROFILE_TIER_LEVEL_SIZE = 684,
MAX_VPS_HDR_SIZE = 13781,
MAX_SPS_HDR_SIZE = 615,
MAX_SHORT_TERM_REFPICSET_SIZE = 55,
MAX_VUI_PARAMS_SIZE = 267,
MAX_HRD_PARAMS_SIZE = 8196,
MAX_PPS_HDR_SIZE = 274,
MAX_SLICE_HDR_SIZE = 33660
};
/* Account for VPS header */
base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_VPS_HDR_SIZE +
MAX_PROFILE_TIER_LEVEL_SIZE + MAX_HRD_PARAMS_SIZE) / 8;
/* Account for SPS header */
base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_SPS_HDR_SIZE +
MAX_PROFILE_TIER_LEVEL_SIZE + 64 * MAX_SHORT_TERM_REFPICSET_SIZE +
MAX_VUI_PARAMS_SIZE + MAX_HRD_PARAMS_SIZE) / 8;
/* Account for PPS header */
base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_PPS_HDR_SIZE) / 8;
/* Account for slice header */
base_encoder->codedbuf_size += encoder->num_slices * (4 +
GST_ROUND_UP_8 (MAX_SLICE_HDR_SIZE + MAX_SHORT_TERM_REFPICSET_SIZE) / 8);
if (!ensure_hw_profile (encoder))
return GST_VAAPI_ENCODER_STATUS_ERROR_UNSUPPORTED_PROFILE;
base_encoder->num_ref_frames =
((encoder->num_bframes ? 2 : 1) + DEFAULT_SURFACES_COUNT);
/* Only YUV 4:2:0 formats are supported for now. */
base_encoder->codedbuf_size += GST_ROUND_UP_32 (vip->width) *
GST_ROUND_UP_32 (vip->height) * 3 / 2;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_reconfigure (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiEncoderStatus status;
guint luma_width, luma_height;
luma_width = GST_VAAPI_ENCODER_WIDTH (encoder);
luma_height = GST_VAAPI_ENCODER_HEIGHT (encoder);
if (luma_width != encoder->luma_width || luma_height != encoder->luma_height) {
GST_DEBUG ("resolution: %d %d", GST_VAAPI_ENCODER_WIDTH (encoder),
GST_VAAPI_ENCODER_HEIGHT (encoder));
encoder->luma_width = GST_ROUND_UP_32 (luma_width);
encoder->luma_height = GST_ROUND_UP_32 (luma_height);
encoder->ctu_width = (encoder->luma_width + 31) / 32;
encoder->ctu_height = (encoder->luma_height + 31) / 32;
encoder->config_changed = TRUE;
/* Frame Cropping */
if ((GST_VAAPI_ENCODER_WIDTH (encoder) & 31) ||
(GST_VAAPI_ENCODER_HEIGHT (encoder) & 31)) {
static const guint SubWidthC[] = { 1, 2, 2, 1 };
static const guint SubHeightC[] = { 1, 2, 1, 1 };
encoder->conformance_window_flag = 1;
encoder->conf_win_left_offset = 0;
encoder->conf_win_right_offset =
(encoder->luma_width -
GST_VAAPI_ENCODER_WIDTH (encoder)) / SubWidthC[1];
encoder->conf_win_top_offset = 0;
encoder->conf_win_bottom_offset =
(encoder->luma_height -
GST_VAAPI_ENCODER_HEIGHT (encoder)) / SubHeightC[1];
}
}
status = ensure_profile_tier_level (encoder);
if (status != GST_VAAPI_ENCODER_STATUS_SUCCESS)
return status;
reset_properties (encoder);
return set_context_info (base_encoder);
}
static gboolean
gst_vaapi_encoder_h265_init (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiH265ReorderPool *reorder_pool;
GstVaapiH265RefPool *ref_pool;
encoder->conformance_window_flag = 0;
encoder->num_slices = 1;
/* re-ordering list initialize */
reorder_pool = &encoder->reorder_pool;
g_queue_init (&reorder_pool->reorder_frame_list);
reorder_pool->reorder_state = GST_VAAPI_ENC_H265_REORD_NONE;
reorder_pool->frame_index = 0;
reorder_pool->cur_present_index = 0;
/* reference list info initialize */
ref_pool = &encoder->ref_pool;
g_queue_init (&ref_pool->ref_list);
ref_pool->max_ref_frames = 0;
ref_pool->max_reflist0_count = 1;
ref_pool->max_reflist1_count = 1;
return TRUE;
}
static void
gst_vaapi_encoder_h265_finalize (GstVaapiEncoder * base_encoder)
{
/*free private buffers */
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
GstVaapiEncPicture *pic;
GstVaapiEncoderH265Ref *ref;
GstVaapiH265RefPool *ref_pool;
GstVaapiH265ReorderPool *reorder_pool;
gst_buffer_replace (&encoder->vps_data, NULL);
gst_buffer_replace (&encoder->sps_data, NULL);
gst_buffer_replace (&encoder->pps_data, NULL);
/* reference list info de-init */
ref_pool = &encoder->ref_pool;
while (!g_queue_is_empty (&ref_pool->ref_list)) {
ref = (GstVaapiEncoderH265Ref *) g_queue_pop_head (&ref_pool->ref_list);
reference_pic_free (encoder, ref);
}
g_queue_clear (&ref_pool->ref_list);
/* re-ordering list initialize */
reorder_pool = &encoder->reorder_pool;
while (!g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
pic = (GstVaapiEncPicture *)
g_queue_pop_head (&reorder_pool->reorder_frame_list);
gst_vaapi_enc_picture_unref (pic);
}
g_queue_clear (&reorder_pool->reorder_frame_list);
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h265_set_property (GstVaapiEncoder * base_encoder,
gint prop_id, const GValue * value)
{
GstVaapiEncoderH265 *const encoder =
GST_VAAPI_ENCODER_H265_CAST (base_encoder);
switch (prop_id) {
case GST_VAAPI_ENCODER_H265_PROP_MAX_BFRAMES:
encoder->num_bframes = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H265_PROP_INIT_QP:
encoder->init_qp = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H265_PROP_MIN_QP:
encoder->min_qp = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H265_PROP_NUM_SLICES:
encoder->num_slices = g_value_get_uint (value);
break;
default:
return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER;
}
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (H265);
static inline const GstVaapiEncoderClass *
gst_vaapi_encoder_h265_class (void)
{
static const GstVaapiEncoderClass GstVaapiEncoderH265Class = {
GST_VAAPI_ENCODER_CLASS_INIT (H265, h265),
.set_property = gst_vaapi_encoder_h265_set_property,
.get_codec_data = gst_vaapi_encoder_h265_get_codec_data
};
return &GstVaapiEncoderH265Class;
}
/**
* gst_vaapi_encoder_h265_new:
* @display: a #GstVaapiDisplay
*
* Creates a new #GstVaapiEncoder for H.265 encoding. Note that the
* only supported output stream format is "byte-stream" format.
*
* Return value: the newly allocated #GstVaapiEncoder object
*/
GstVaapiEncoder *
gst_vaapi_encoder_h265_new (GstVaapiDisplay * display)
{
return gst_vaapi_encoder_new (gst_vaapi_encoder_h265_class (), display);
}
/**
* gst_vaapi_encoder_h265_get_default_properties:
*
* Determines the set of common and H.265 specific encoder properties.
* The caller owns an extra reference to the resulting array of
* #GstVaapiEncoderPropInfo elements, so it shall be released with
* g_ptr_array_unref() after usage.
*
* Return value: the set of encoder properties for #GstVaapiEncoderH265,
* or %NULL if an error occurred.
*/
GPtrArray *
gst_vaapi_encoder_h265_get_default_properties (void)
{
const GstVaapiEncoderClass *const klass = gst_vaapi_encoder_h265_class ();
GPtrArray *props;
props = gst_vaapi_encoder_properties_get_default (klass);
if (!props)
return NULL;
/**
* GstVaapiEncoderH265:max-bframes:
*
* The number of B-frames between I and P.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H265_PROP_MAX_BFRAMES,
g_param_spec_uint ("max-bframes",
"Max B-Frames", "Number of B-frames between I and P", 0, 10, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH265:init-qp:
*
* The initial quantizer value.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H265_PROP_INIT_QP,
g_param_spec_uint ("init-qp",
"Initial QP", "Initial quantizer value", 1, 51, 26,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH265:min-qp:
*
* The minimum quantizer value.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H265_PROP_MIN_QP,
g_param_spec_uint ("min-qp",
"Minimum QP", "Minimum quantizer value", 1, 51, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Fixme: there seems to be issues with multi-slice encoding */
/**
* GstVaapiEncoderH265:num-slices:
*
* The number of slices per frame.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H265_PROP_NUM_SLICES,
g_param_spec_uint ("num-slices",
"Number of Slices",
"Number of slices per frame",
1, 200, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
return props;
}
/**
* gst_vaapi_encoder_h265_set_max_profile:
* @encoder: a #GstVaapiEncoderH265
* @profile: an H.265 #GstVaapiProfile
*
* Notifies the @encoder to use coding tools from the supplied
* @profile at most.
*
* This means that if the minimal profile derived to
* support the specified coding tools is greater than this @profile,
* then an error is returned when the @encoder is configured.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_encoder_h265_set_max_profile (GstVaapiEncoderH265 * encoder,
GstVaapiProfile profile)
{
guint8 profile_idc;
g_return_val_if_fail (encoder != NULL, FALSE);
g_return_val_if_fail (profile != GST_VAAPI_PROFILE_UNKNOWN, FALSE);
if (gst_vaapi_profile_get_codec (profile) != GST_VAAPI_CODEC_H265)
return FALSE;
profile_idc = gst_vaapi_utils_h265_get_profile_idc (profile);
if (!profile_idc)
return FALSE;
encoder->max_profile_idc = profile_idc;
return TRUE;
}
/**
* gst_vaapi_encoder_h265_get_profile_tier_level:
* @encoder: a #GstVaapiEncoderH265
* @out_profile_ptr: return location for the #GstVaapiProfile
* @out_level_ptr: return location for the #GstVaapiLevelH265
* @out_tier_ptr: return location for the #GstVaapiTierH265
*
* Queries the H.265 @encoder for the active profile and level. That
* information is only constructed and valid after the encoder is
* configured, i.e. after the gst_vaapi_encoder_set_codec_state()
* function is called.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_encoder_h265_get_profile_tier_level (GstVaapiEncoderH265 * encoder,
GstVaapiProfile * out_profile_ptr, GstVaapiTierH265 * out_tier_ptr,
GstVaapiLevelH265 * out_level_ptr)
{
g_return_val_if_fail (encoder != NULL, FALSE);
if (!encoder->profile || !encoder->tier || !encoder->level)
return FALSE;
if (out_profile_ptr)
*out_profile_ptr = encoder->profile;
if (out_level_ptr)
*out_level_ptr = encoder->level;
if (out_tier_ptr)
*out_tier_ptr = encoder->tier;
return TRUE;
}
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