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gstreamer/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
Sreerenj Balachandran 95d7f95971 encoder: h264: generate new SPS only when codec config changed. 
It is not necessary to periodically send SPS or subset SPS headers.
This is up to the upper layer (e.g. transport layer) to decide on
if/how to periodically submit those. For now, only generate new SPS
or subset SPS headers when the codec config changed.

Note: the upper layer could readily determine the config headers
(SPS/PPS) through the gst_vaapi_encoder_h264_get_codec_data() function.

https://bugzilla.gnome.org/show_bug.cgi?id=732083

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2014-06-27 20:26:21 +02:00

2888 lines
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/*
* gstvaapiencoder_h264.c - H.264 encoder
*
* Copyright (C) 2012-2014 Intel Corporation
* Author: Wind Yuan <feng.yuan@intel.com>
* Author: Gwenole Beauchesne <gwenole.beauchesne@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
*/
#include "sysdeps.h"
#include <va/va.h>
#include <va/va_enc_h264.h>
#include <gst/base/gstbitwriter.h>
#include <gst/codecparsers/gsth264parser.h>
#include "gstvaapicompat.h"
#include "gstvaapiencoder_priv.h"
#include "gstvaapiencoder_h264.h"
#include "gstvaapiutils_h264.h"
#include "gstvaapiutils_h264_priv.h"
#include "gstvaapicodedbufferproxy_priv.h"
#include "gstvaapisurface.h"
#define DEBUG 1
#include "gstvaapidebug.h"
/* Define the maximum number of views supported */
#define MAX_NUM_VIEWS 2
/* Define the maximum IDR period */
#define MAX_IDR_PERIOD 512
/* Default CPB length (in milliseconds) */
#define DEFAULT_CPB_LENGTH 1500
/* Scale factor for CPB size (HRD cpb_size_scale: min = 4) */
#define SX_CPB_SIZE 4
/* Scale factor for bitrate (HRD bit_rate_scale: min = 6) */
#define SX_BITRATE 6
/* 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) | \
GST_VAAPI_RATECONTROL_MASK (CBR) | \
GST_VAAPI_RATECONTROL_MASK (VBR) | \
GST_VAAPI_RATECONTROL_MASK (VBR_CONSTRAINED))
/* Supported set of tuning options, within this implementation */
#define SUPPORTED_TUNE_OPTIONS \
(GST_VAAPI_ENCODER_TUNE_MASK (NONE) | \
GST_VAAPI_ENCODER_TUNE_MASK (HIGH_COMPRESSION))
/* 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 | \
VA_ENC_PACKED_HEADER_RAW_DATA)
#define GST_H264_NAL_REF_IDC_NONE 0
#define GST_H264_NAL_REF_IDC_LOW 1
#define GST_H264_NAL_REF_IDC_MEDIUM 2
#define GST_H264_NAL_REF_IDC_HIGH 3
typedef struct
{
GstVaapiSurfaceProxy *pic;
guint poc;
guint frame_num;
} GstVaapiEncoderH264Ref;
typedef enum
{
GST_VAAPI_ENC_H264_REORD_NONE = 0,
GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES = 1,
GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES = 2
} GstVaapiEncH264ReorderState;
typedef struct _GstVaapiH264ViewRefPool
{
GQueue ref_list;
guint max_ref_frames;
guint max_reflist0_count;
guint max_reflist1_count;
} GstVaapiH264ViewRefPool;
typedef struct _GstVaapiH264ViewReorderPool
{
GQueue reorder_frame_list;
guint reorder_state;
guint frame_index;
guint cur_frame_num;
guint cur_present_index;
} GstVaapiH264ViewReorderPool;
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.264 specification */
static guint8
h264_get_slice_type (GstVaapiPictureType type)
{
switch (type) {
case GST_VAAPI_PICTURE_TYPE_I:
return GST_H264_I_SLICE;
case GST_VAAPI_PICTURE_TYPE_P:
return GST_H264_P_SLICE;
case GST_VAAPI_PICTURE_TYPE_B:
return GST_H264_B_SLICE;
default:
break;
}
return -1;
}
/* Get log2_max_frame_num value for H.264 specification */
static guint
h264_get_log2_max_frame_num (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;
}
/* Determines the cpbBrNalFactor based on the supplied profile */
static guint
h264_get_cpb_nal_factor (GstVaapiProfile profile)
{
guint f;
/* Table A-2 */
switch (profile) {
case GST_VAAPI_PROFILE_H264_HIGH:
f = 1500;
break;
case GST_VAAPI_PROFILE_H264_HIGH10:
f = 3600;
break;
case GST_VAAPI_PROFILE_H264_HIGH_422:
case GST_VAAPI_PROFILE_H264_HIGH_444:
f = 4800;
break;
case GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH:
case GST_VAAPI_PROFILE_H264_STEREO_HIGH:
f = 1500; /* H.10.2.1 (r) */
break;
default:
f = 1200;
break;
}
return f;
}
/* ------------------------------------------------------------------------- */
/* --- H.264 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_ref_idc,
guint32 nal_unit_type)
{
WRITE_UINT32 (bs, 0, 1);
WRITE_UINT32 (bs, nal_ref_idc, 2);
WRITE_UINT32 (bs, nal_unit_type, 5);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write NAL unit header");
return FALSE;
}
}
/* Write the MVC NAL unit header extension */
static gboolean
bs_write_nal_header_mvc_extension (GstBitWriter * bs,
GstVaapiEncPicture * picture, guint32 view_id)
{
guint32 svc_extension_flag = 0;
guint32 non_idr_flag = 1;
guint32 priority_id = 0;
guint32 temporal_id = 0;
guint32 anchor_pic_flag = 0;
guint32 inter_view_flag = 0;
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
non_idr_flag = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_I)
anchor_pic_flag = 1;
/* svc_extension_flag == 0 for mvc stream */
WRITE_UINT32 (bs, svc_extension_flag, 1);
WRITE_UINT32 (bs, non_idr_flag, 1);
WRITE_UINT32 (bs, priority_id, 6);
WRITE_UINT32 (bs, view_id, 10);
WRITE_UINT32 (bs, temporal_id, 3);
WRITE_UINT32 (bs, anchor_pic_flag, 1);
WRITE_UINT32 (bs, inter_view_flag, 1);
WRITE_UINT32 (bs, 1, 1);
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 an SPS NAL unit */
static gboolean
bs_write_sps_data (GstBitWriter * bs,
const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
const VAEncMiscParameterHRD * hrd_params)
{
guint8 profile_idc;
guint32 constraint_set0_flag, constraint_set1_flag;
guint32 constraint_set2_flag, constraint_set3_flag;
guint32 gaps_in_frame_num_value_allowed_flag = 0; // ??
gboolean nal_hrd_parameters_present_flag;
guint32 b_qpprime_y_zero_transform_bypass = 0;
guint32 residual_color_transform_flag = 0;
guint32 pic_height_in_map_units =
(seq_param->seq_fields.bits.frame_mbs_only_flag ?
seq_param->picture_height_in_mbs : seq_param->picture_height_in_mbs / 2);
guint32 mb_adaptive_frame_field =
!seq_param->seq_fields.bits.frame_mbs_only_flag;
guint32 i = 0;
profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
constraint_set0_flag = /* A.2.1 (baseline profile constraints) */
profile == GST_VAAPI_PROFILE_H264_BASELINE ||
profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
constraint_set1_flag = /* A.2.2 (main profile constraints) */
profile == GST_VAAPI_PROFILE_H264_MAIN ||
profile == GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
constraint_set2_flag = 0;
constraint_set3_flag = 0;
/* profile_idc */
WRITE_UINT32 (bs, profile_idc, 8);
/* constraint_set0_flag */
WRITE_UINT32 (bs, constraint_set0_flag, 1);
/* constraint_set1_flag */
WRITE_UINT32 (bs, constraint_set1_flag, 1);
/* constraint_set2_flag */
WRITE_UINT32 (bs, constraint_set2_flag, 1);
/* constraint_set3_flag */
WRITE_UINT32 (bs, constraint_set3_flag, 1);
/* reserved_zero_4bits */
WRITE_UINT32 (bs, 0, 4);
/* level_idc */
WRITE_UINT32 (bs, seq_param->level_idc, 8);
/* seq_parameter_set_id */
WRITE_UE (bs, seq_param->seq_parameter_set_id);
if (profile == GST_VAAPI_PROFILE_H264_HIGH ||
profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH) {
/* for high profile */
/* chroma_format_idc = 1, 4:2:0 */
WRITE_UE (bs, seq_param->seq_fields.bits.chroma_format_idc);
if (3 == seq_param->seq_fields.bits.chroma_format_idc) {
WRITE_UINT32 (bs, residual_color_transform_flag, 1);
}
/* bit_depth_luma_minus8 */
WRITE_UE (bs, seq_param->bit_depth_luma_minus8);
/* bit_depth_chroma_minus8 */
WRITE_UE (bs, seq_param->bit_depth_chroma_minus8);
/* b_qpprime_y_zero_transform_bypass */
WRITE_UINT32 (bs, b_qpprime_y_zero_transform_bypass, 1);
/* seq_scaling_matrix_present_flag */
g_assert (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag == 0);
WRITE_UINT32 (bs,
seq_param->seq_fields.bits.seq_scaling_matrix_present_flag, 1);
#if 0
if (seq_param->seq_fields.bits.seq_scaling_matrix_present_flag) {
for (i = 0;
i < (seq_param->seq_fields.bits.chroma_format_idc != 3 ? 8 : 12);
i++) {
gst_bit_writer_put_bits_uint8 (bs,
seq_param->seq_fields.bits.seq_scaling_list_present_flag, 1);
if (seq_param->seq_fields.bits.seq_scaling_list_present_flag) {
g_assert (0);
/* FIXME, need write scaling list if seq_scaling_matrix_present_flag ==1 */
}
}
}
#endif
}
/* log2_max_frame_num_minus4 */
WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_frame_num_minus4);
/* pic_order_cnt_type */
WRITE_UE (bs, seq_param->seq_fields.bits.pic_order_cnt_type);
if (seq_param->seq_fields.bits.pic_order_cnt_type == 0) {
/* log2_max_pic_order_cnt_lsb_minus4 */
WRITE_UE (bs, seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4);
} else if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) {
g_assert (0 && "only POC type 0 is supported");
WRITE_UINT32 (bs,
seq_param->seq_fields.bits.delta_pic_order_always_zero_flag, 1);
WRITE_SE (bs, seq_param->offset_for_non_ref_pic);
WRITE_SE (bs, seq_param->offset_for_top_to_bottom_field);
WRITE_UE (bs, seq_param->num_ref_frames_in_pic_order_cnt_cycle);
for (i = 0; i < seq_param->num_ref_frames_in_pic_order_cnt_cycle; i++) {
WRITE_SE (bs, seq_param->offset_for_ref_frame[i]);
}
}
/* num_ref_frames */
WRITE_UE (bs, seq_param->max_num_ref_frames);
/* gaps_in_frame_num_value_allowed_flag */
WRITE_UINT32 (bs, gaps_in_frame_num_value_allowed_flag, 1);
/* pic_width_in_mbs_minus1 */
WRITE_UE (bs, seq_param->picture_width_in_mbs - 1);
/* pic_height_in_map_units_minus1 */
WRITE_UE (bs, pic_height_in_map_units - 1);
/* frame_mbs_only_flag */
WRITE_UINT32 (bs, seq_param->seq_fields.bits.frame_mbs_only_flag, 1);
if (!seq_param->seq_fields.bits.frame_mbs_only_flag) { //ONLY mbs
g_assert (0 && "only progressive frames encoding is supported");
WRITE_UINT32 (bs, mb_adaptive_frame_field, 1);
}
/* direct_8x8_inference_flag */
WRITE_UINT32 (bs, 0, 1);
/* frame_cropping_flag */
WRITE_UINT32 (bs, seq_param->frame_cropping_flag, 1);
if (seq_param->frame_cropping_flag) {
/* frame_crop_left_offset */
WRITE_UE (bs, seq_param->frame_crop_left_offset);
/* frame_crop_right_offset */
WRITE_UE (bs, seq_param->frame_crop_right_offset);
/* frame_crop_top_offset */
WRITE_UE (bs, seq_param->frame_crop_top_offset);
/* frame_crop_bottom_offset */
WRITE_UE (bs, seq_param->frame_crop_bottom_offset);
}
/* vui_parameters_present_flag */
WRITE_UINT32 (bs, seq_param->vui_parameters_present_flag, 1);
if (seq_param->vui_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);
/* timing_info_present_flag */
WRITE_UINT32 (bs, seq_param->vui_fields.bits.timing_info_present_flag, 1);
if (seq_param->vui_fields.bits.timing_info_present_flag) {
WRITE_UINT32 (bs, seq_param->num_units_in_tick, 32);
WRITE_UINT32 (bs, seq_param->time_scale, 32);
WRITE_UINT32 (bs, 1, 1); /* fixed_frame_rate_flag */
}
/* nal_hrd_parameters_present_flag */
nal_hrd_parameters_present_flag = seq_param->bits_per_second > 0;
nal_hrd_parameters_present_flag = FALSE; /* XXX: disabled for now */
WRITE_UINT32 (bs, nal_hrd_parameters_present_flag, 1);
if (nal_hrd_parameters_present_flag) {
/* hrd_parameters */
/* cpb_cnt_minus1 */
WRITE_UE (bs, 0);
WRITE_UINT32 (bs, SX_BITRATE - 6, 4); /* bit_rate_scale */
WRITE_UINT32 (bs, SX_CPB_SIZE - 4, 4); /* cpb_size_scale */
for (i = 0; i < 1; ++i) {
/* bit_rate_value_minus1[0] */
WRITE_UE (bs, (seq_param->bits_per_second >> SX_BITRATE) - 1);
/* cpb_size_value_minus1[0] */
WRITE_UE (bs, (hrd_params->buffer_size >> SX_CPB_SIZE) - 1);
/* cbr_flag[0] */
WRITE_UINT32 (bs, 1, 1);
}
/* initial_cpb_removal_delay_length_minus1 */
WRITE_UINT32 (bs, 23, 5);
/* cpb_removal_delay_length_minus1 */
WRITE_UINT32 (bs, 23, 5);
/* dpb_output_delay_length_minus1 */
WRITE_UINT32 (bs, 23, 5);
/* time_offset_length */
WRITE_UINT32 (bs, 23, 5);
}
/* vcl_hrd_parameters_present_flag */
WRITE_UINT32 (bs, 0, 1);
if (nal_hrd_parameters_present_flag
|| 0 /*vcl_hrd_parameters_present_flag */ ) {
/* low_delay_hrd_flag */
WRITE_UINT32 (bs, 0, 1);
}
/* pic_struct_present_flag */
WRITE_UINT32 (bs, 0, 1);
/* bs_restriction_flag */
WRITE_UINT32 (bs, 0, 1);
}
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SPS NAL unit");
return FALSE;
}
}
static gboolean
bs_write_sps (GstBitWriter * bs,
const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
const VAEncMiscParameterHRD * hrd_params)
{
if (!bs_write_sps_data (bs, seq_param, profile, hrd_params))
return FALSE;
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return FALSE;
}
static gboolean
bs_write_subset_sps (GstBitWriter * bs,
const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile,
guint num_views, const VAEncMiscParameterHRD * hrd_params)
{
guint32 i, j, k;
if (!bs_write_sps_data (bs, seq_param, profile, hrd_params))
return FALSE;
if (profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH ||
profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH) {
guint32 num_views_minus1, num_level_values_signalled_minus1;
num_views_minus1 = num_views - 1;
g_assert (num_views_minus1 < 1024);
/* bit equal to one */
WRITE_UINT32 (bs, 1, 1);
WRITE_UE (bs, num_views_minus1);
for (i = 0; i <= num_views_minus1; i++)
WRITE_UE (bs, i);
for (i = 1; i <= num_views_minus1; i++) {
guint32 num_anchor_refs_l0 = 0;
WRITE_UE (bs, num_anchor_refs_l0);
for (j = 0; j < num_anchor_refs_l0; j++)
WRITE_UE (bs, 0);
guint32 num_anchor_refs_l1 = 0;
WRITE_UE (bs, num_anchor_refs_l1);
for (j = 0; j < num_anchor_refs_l1; j++)
WRITE_UE (bs, 0);
}
for (i = 1; i <= num_views_minus1; i++) {
guint32 num_non_anchor_refs_l0 = 0;
WRITE_UE (bs, num_non_anchor_refs_l0);
for (j = 0; j < num_non_anchor_refs_l0; j++)
WRITE_UE (bs, 0);
guint32 num_non_anchor_refs_l1 = 0;
WRITE_UE (bs, num_non_anchor_refs_l1);
for (j = 0; j < num_non_anchor_refs_l1; j++)
WRITE_UE (bs, 0);
}
/* num level values signalled minus1 */
num_level_values_signalled_minus1 = 0;
g_assert (num_level_values_signalled_minus1 < 64);
WRITE_UE (bs, num_level_values_signalled_minus1);
for (i = 0; i <= num_level_values_signalled_minus1; i++) {
guint16 num_applicable_ops_minus1 = 0;
g_assert (num_applicable_ops_minus1 < 1024);
WRITE_UINT32 (bs, seq_param->level_idc, 8);
WRITE_UE (bs, num_applicable_ops_minus1);
for (j = 0; j <= num_applicable_ops_minus1; j++) {
guint8 temporal_id = 0;
guint16 num_target_views_minus1 = 1;
WRITE_UINT32 (bs, temporal_id, 3);
WRITE_UE (bs, num_target_views_minus1);
for (k = 0; k <= num_target_views_minus1; k++)
WRITE_UE (bs, k);
WRITE_UE (bs, num_views_minus1);
}
}
/* mvc_vui_parameters_present_flag */
WRITE_UINT32 (bs, 0, 1);
}
/* additional_extension2_flag */
WRITE_UINT32 (bs, 0, 1);
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write subset SPS NAL unit");
return FALSE;
}
return FALSE;
}
/* Write a PPS NAL unit */
static gboolean
bs_write_pps (GstBitWriter * bs,
const VAEncPictureParameterBufferH264 * pic_param, GstVaapiProfile profile)
{
guint32 num_slice_groups_minus1 = 0;
guint32 pic_init_qs_minus26 = 0;
guint32 redundant_pic_cnt_present_flag = 0;
/* pic_parameter_set_id */
WRITE_UE (bs, pic_param->pic_parameter_set_id);
/* seq_parameter_set_id */
WRITE_UE (bs, pic_param->seq_parameter_set_id);
/* entropy_coding_mode_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.entropy_coding_mode_flag, 1);
/* pic_order_present_flag */
WRITE_UINT32 (bs, pic_param->pic_fields.bits.pic_order_present_flag, 1);
/* slice_groups-1 */
WRITE_UE (bs, num_slice_groups_minus1);
if (num_slice_groups_minus1 > 0) {
/*FIXME*/ g_assert (0 && "unsupported arbitrary slice ordering (ASO)");
}
WRITE_UE (bs, pic_param->num_ref_idx_l0_active_minus1);
WRITE_UE (bs, pic_param->num_ref_idx_l1_active_minus1);
WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_pred_flag, 1);
WRITE_UINT32 (bs, pic_param->pic_fields.bits.weighted_bipred_idc, 2);
/* pic_init_qp_minus26 */
WRITE_SE (bs, pic_param->pic_init_qp - 26);
/* pic_init_qs_minus26 */
WRITE_SE (bs, pic_init_qs_minus26);
/* chroma_qp_index_offset */
WRITE_SE (bs, pic_param->chroma_qp_index_offset);
WRITE_UINT32 (bs,
pic_param->pic_fields.bits.deblocking_filter_control_present_flag, 1);
WRITE_UINT32 (bs, pic_param->pic_fields.bits.constrained_intra_pred_flag, 1);
WRITE_UINT32 (bs, redundant_pic_cnt_present_flag, 1);
/* more_rbsp_data */
if (profile == GST_VAAPI_PROFILE_H264_HIGH) {
WRITE_UINT32 (bs, pic_param->pic_fields.bits.transform_8x8_mode_flag, 1);
WRITE_UINT32 (bs,
pic_param->pic_fields.bits.pic_scaling_matrix_present_flag, 1);
if (pic_param->pic_fields.bits.pic_scaling_matrix_present_flag) {
g_assert (0 && "unsupported scaling lists");
/* FIXME */
/*
for (i = 0; i <
(6+(-( (chroma_format_idc ! = 3) ? 2 : 6) * -pic_param->pic_fields.bits.transform_8x8_mode_flag));
i++) {
gst_bit_writer_put_bits_uint8(bs, pic_param->pic_fields.bits.pic_scaling_list_present_flag, 1);
}
*/
}
WRITE_SE (bs, pic_param->second_chroma_qp_index_offset);
}
/* rbsp_trailing_bits */
bs_write_trailing_bits (bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write PPS NAL unit");
return FALSE;
}
}
/* ------------------------------------------------------------------------- */
/* --- H.264 Encoder --- */
/* ------------------------------------------------------------------------- */
#define GST_VAAPI_ENCODER_H264_CAST(encoder) \
((GstVaapiEncoderH264 *)(encoder))
struct _GstVaapiEncoderH264
{
GstVaapiEncoder parent_instance;
GstVaapiProfile profile;
GstVaapiLevelH264 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 mb_width;
guint32 mb_height;
gboolean use_cabac;
gboolean use_dct8x8;
GstClockTime cts_offset;
gboolean config_changed;
/* frame, poc */
guint32 max_frame_num;
guint32 log2_max_frame_num;
guint32 max_pic_order_cnt;
guint32 log2_max_pic_order_cnt;
guint32 idr_num;
guint8 pic_order_cnt_type;
guint8 delta_pic_order_always_zero_flag;
GstBuffer *sps_data;
GstBuffer *subset_sps_data;
GstBuffer *pps_data;
guint bitrate_bits; // bitrate (bits)
guint cpb_length; // length of CPB buffer (ms)
guint cpb_length_bits; // length of CPB buffer (bits)
/* MVC */
gboolean is_mvc;
guint32 view_idx;
guint32 num_views;
GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS];
GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS];
};
/* Write a Slice NAL unit */
static gboolean
bs_write_slice (GstBitWriter * bs,
const VAEncSliceParameterBufferH264 * slice_param,
GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
const VAEncPictureParameterBufferH264 *const pic_param = picture->param;
guint32 field_pic_flag = 0;
guint32 ref_pic_list_modification_flag_l0 = 0;
guint32 ref_pic_list_modification_flag_l1 = 0;
guint32 no_output_of_prior_pics_flag = 0;
guint32 long_term_reference_flag = 0;
guint32 adaptive_ref_pic_marking_mode_flag = 0;
/* first_mb_in_slice */
WRITE_UE (bs, slice_param->macroblock_address);
/* slice_type */
WRITE_UE (bs, slice_param->slice_type);
/* pic_parameter_set_id */
WRITE_UE (bs, slice_param->pic_parameter_set_id);
/* frame_num */
WRITE_UINT32 (bs, picture->frame_num, encoder->log2_max_frame_num);
/* XXX: only frames (i.e. non-interlaced) are supported for now */
/* frame_mbs_only_flag == 0 */
/* idr_pic_id */
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
WRITE_UE (bs, slice_param->idr_pic_id);
/* XXX: only POC type 0 is supported */
if (!encoder->pic_order_cnt_type) {
WRITE_UINT32 (bs, slice_param->pic_order_cnt_lsb,
encoder->log2_max_pic_order_cnt);
/* bottom_field_pic_order_in_frame_present_flag is FALSE */
if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
WRITE_SE (bs, slice_param->delta_pic_order_cnt_bottom);
} else if (encoder->pic_order_cnt_type == 1 &&
!encoder->delta_pic_order_always_zero_flag) {
WRITE_SE (bs, slice_param->delta_pic_order_cnt[0]);
if (pic_param->pic_fields.bits.pic_order_present_flag && !field_pic_flag)
WRITE_SE (bs, slice_param->delta_pic_order_cnt[1]);
}
/* redundant_pic_cnt_present_flag is FALSE, no redundant coded pictures */
/* only works for B-frames */
if (slice_param->slice_type == 1)
WRITE_UINT32 (bs, slice_param->direct_spatial_mv_pred_flag, 1);
/* not supporting SP slices */
if (slice_param->slice_type == 0 || slice_param->slice_type == 1) {
WRITE_UINT32 (bs, slice_param->num_ref_idx_active_override_flag, 1);
if (slice_param->num_ref_idx_active_override_flag) {
WRITE_UE (bs, slice_param->num_ref_idx_l0_active_minus1);
if (slice_param->slice_type == 1)
WRITE_UE (bs, slice_param->num_ref_idx_l1_active_minus1);
}
}
/* XXX: not supporting custom reference picture list modifications */
if ((slice_param->slice_type != 2) && (slice_param->slice_type != 4))
WRITE_UINT32 (bs, ref_pic_list_modification_flag_l0, 1);
if (slice_param->slice_type == 1)
WRITE_UINT32 (bs, ref_pic_list_modification_flag_l1, 1);
/* we have: weighted_pred_flag == FALSE and */
/* : weighted_bipred_idc == FALSE */
if ((pic_param->pic_fields.bits.weighted_pred_flag &&
(slice_param->slice_type == 0)) ||
((pic_param->pic_fields.bits.weighted_bipred_idc == 1) &&
(slice_param->slice_type == 1))) {
/* XXXX: add pred_weight_table() */
}
/* dec_ref_pic_marking() */
if (slice_param->slice_type == 0 || slice_param->slice_type == 2) {
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
/* no_output_of_prior_pics_flag = 0 */
WRITE_UINT32 (bs, no_output_of_prior_pics_flag, 1);
/* long_term_reference_flag = 0 */
WRITE_UINT32 (bs, long_term_reference_flag, 1);
} else {
/* only sliding_window reference picture marking mode is supported */
/* adpative_ref_pic_marking_mode_flag = 0 */
WRITE_UINT32 (bs, adaptive_ref_pic_marking_mode_flag, 1);
}
}
/* cabac_init_idc */
if (pic_param->pic_fields.bits.entropy_coding_mode_flag &&
slice_param->slice_type != 2)
WRITE_UE (bs, slice_param->cabac_init_idc);
/*slice_qp_delta */
WRITE_SE (bs, slice_param->slice_qp_delta);
/* XXX: only supporting I, P and B type slices */
/* no sp_for_switch_flag and no slice_qs_delta */
if (pic_param->pic_fields.bits.deblocking_filter_control_present_flag) {
/* disable_deblocking_filter_idc */
WRITE_UE (bs, slice_param->disable_deblocking_filter_idc);
if (slice_param->disable_deblocking_filter_idc != 1) {
WRITE_SE (bs, slice_param->slice_alpha_c0_offset_div2);
WRITE_SE (bs, slice_param->slice_beta_offset_div2);
}
}
/* XXX: unsupported arbitrary slice ordering (ASO) */
/* num_slic_groups_minus1 should be zero */
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Slice NAL unit");
return FALSE;
}
}
static inline void
_check_sps_pps_status (GstVaapiEncoderH264 * encoder,
const guint8 * nal, guint32 size)
{
guint8 nal_type;
gsize ret;
gboolean has_subset_sps;
g_assert (size);
has_subset_sps = !encoder->is_mvc || (encoder->subset_sps_data != NULL);
if (encoder->sps_data && encoder->pps_data && has_subset_sps)
return;
nal_type = nal[0] & 0x1F;
switch (nal_type) {
case GST_H264_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_H264_NAL_SUBSET_SPS:
encoder->subset_sps_data = gst_buffer_new_allocate (NULL, size, NULL);
ret = gst_buffer_fill (encoder->subset_sps_data, 0, nal, size);
g_assert (ret == size);
break;
case GST_H264_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 (GstVaapiEncoderH264 * 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_h264_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 (GstVaapiEncoderH264 * 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_H264_CONSTRAINED_BASELINE:
profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_BASELINE;
profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_MAIN;
// fall-through
case GST_VAAPI_PROFILE_H264_MAIN:
profiles[num_profiles++] = GST_VAAPI_PROFILE_H264_HIGH;
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 (GstVaapiEncoderH264 * encoder)
{
GstVaapiProfile profile;
if (!encoder->max_profile_idc
|| encoder->profile_idc <= encoder->max_profile_idc)
return TRUE;
GST_WARNING ("lowering coding tools to meet target decoder constraints");
/* Try Main profile coding tools */
if (encoder->max_profile_idc < 100) {
encoder->use_dct8x8 = FALSE;
profile = GST_VAAPI_PROFILE_H264_MAIN;
}
/* Try Constrained Baseline profile coding tools */
if (encoder->max_profile_idc < 77) {
encoder->num_bframes = 0;
encoder->use_cabac = FALSE;
profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
}
encoder->profile = profile;
encoder->profile_idc = encoder->max_profile_idc;
return TRUE;
}
/* Derives the minimum profile from the active coding tools */
static gboolean
ensure_profile (GstVaapiEncoderH264 * encoder)
{
GstVaapiProfile profile;
/* Always start from "constrained-baseline" profile for maximum
compatibility */
profile = GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE;
/* Main profile coding tools */
if (encoder->num_bframes > 0 || encoder->use_cabac)
profile = GST_VAAPI_PROFILE_H264_MAIN;
/* High profile coding tools */
if (encoder->use_dct8x8)
profile = GST_VAAPI_PROFILE_H264_HIGH;
/* MVC profiles coding tools */
if (encoder->num_views == 2)
profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH;
else if (encoder->num_views > 2)
profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH;
encoder->profile = profile;
encoder->profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
return TRUE;
}
/* Derives the level from the currently set limits */
static gboolean
ensure_level (GstVaapiEncoderH264 * encoder)
{
const guint cpb_factor = h264_get_cpb_nal_factor (encoder->profile);
const GstVaapiH264LevelLimits *limits_table;
guint i, num_limits, PicSizeMbs, MaxDpbMbs, MaxMBPS;
PicSizeMbs = encoder->mb_width * encoder->mb_height;
MaxDpbMbs = PicSizeMbs * ((encoder->num_bframes) ? 2 : 1);
MaxMBPS = gst_util_uint64_scale_int_ceil (PicSizeMbs,
GST_VAAPI_ENCODER_FPS_N (encoder), GST_VAAPI_ENCODER_FPS_D (encoder));
limits_table = gst_vaapi_utils_h264_get_level_limits_table (&num_limits);
for (i = 0; i < num_limits; i++) {
const GstVaapiH264LevelLimits *const limits = &limits_table[i];
if (PicSizeMbs <= limits->MaxFS &&
MaxDpbMbs <= limits->MaxDpbMbs &&
MaxMBPS <= limits->MaxMBPS && (!encoder->bitrate_bits
|| encoder->bitrate_bits <= (limits->MaxBR * cpb_factor)) &&
(!encoder->cpb_length_bits ||
encoder->cpb_length_bits <= (limits->MaxCPB * cpb_factor)))
break;
}
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 (GstVaapiEncoderH264 * 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 to enable Main profile */
if (profile_idc >= 77 && profile_idc != 88) {
encoder->use_cabac = TRUE;
if (!encoder->num_bframes)
encoder->num_bframes = 1;
}
/* Tuning options to enable High profile */
if (profile_idc >= 100) {
encoder->use_dct8x8 = TRUE;
}
return TRUE;
}
/* Ensure tuning options */
static gboolean
ensure_tuning (GstVaapiEncoderH264 * 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 (GstVaapiEncoderH264 * encoder)
{
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[encoder->view_idx];
reorder_pool->frame_index = 1;
reorder_pool->cur_frame_num = 0;
reorder_pool->cur_present_index = 0;
++encoder->idr_num;
}
/* Marks the supplied picture as a B-frame */
static void
set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[encoder->view_idx];
g_assert (pic && encoder);
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_B;
pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
}
/* Marks the supplied picture as a P-frame */
static void
set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[encoder->view_idx];
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_P;
pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
}
/* Marks the supplied picture as an I-frame */
static void
set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[encoder->view_idx];
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_I;
pic->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
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, GstVaapiEncoderH264 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_I;
pic->frame_num = 0;
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,
GstVaapiEncoderH264 * encoder, gboolean is_idr)
{
if (is_idr) {
reset_gop_start (encoder);
set_idr_frame (picture, encoder);
} else
set_i_frame (picture, encoder);
}
/* Fills in VA HRD parameters */
static void
fill_hrd_params (GstVaapiEncoderH264 * encoder, VAEncMiscParameterHRD * hrd)
{
if (encoder->bitrate_bits > 0) {
hrd->buffer_size = encoder->cpb_length_bits;
hrd->initial_buffer_fullness = hrd->buffer_size / 2;
} else {
hrd->buffer_size = 0;
hrd->initial_buffer_fullness = 0;
}
}
/* 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 (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncPackedHeader *packed_seq;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_seq_param = { 0 };
const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
GstVaapiProfile profile = encoder->profile;
VAEncMiscParameterHRD hrd_params;
guint32 data_bit_size;
guint8 *data;
fill_hrd_params (encoder, &hrd_params);
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SPS);
/* Set High profile for encoding the MVC base view. Otherwise, some
traditional decoder cannot recognize MVC profile streams with
only the base view in there */
if (profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH ||
profile == GST_VAAPI_PROFILE_H264_STEREO_HIGH)
profile = GST_VAAPI_PROFILE_H264_HIGH;
bs_write_sps (&bs, seq_param, profile, &hrd_params);
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_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;
}
}
static gboolean
add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncPackedHeader *packed_seq;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_header_param_buffer = { 0 };
const VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
VAEncMiscParameterHRD hrd_params;
guint32 data_bit_size;
guint8 *data;
fill_hrd_params (encoder, &hrd_params);
/* non-base layer, pack one subset sps */
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SUBSET_SPS);
bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views,
&hrd_params);
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_header_param_buffer.type = VAEncPackedHeaderSequence;
packed_header_param_buffer.bit_length = data_bit_size;
packed_header_param_buffer.has_emulation_bytes = 0;
packed_seq = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_header_param_buffer, sizeof (packed_header_param_buffer),
data, (data_bit_size + 7) / 8);
g_assert (packed_seq);
gst_vaapi_enc_picture_add_packed_header (picture, packed_seq);
gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) & packed_seq, NULL);
/* store subset sps data */
_check_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 (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture)
{
GstVaapiEncPackedHeader *packed_pic;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_pic_param = { 0 };
const VAEncPictureParameterBufferH264 *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_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_PPS);
bs_write_pps (&bs, pic_param, encoder->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_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_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_hdr_attributes (GstVaapiEncPicture * picture,
guint8 * nal_ref_idc, guint8 * nal_unit_type)
{
switch (picture->type) {
case GST_VAAPI_PICTURE_TYPE_I:
*nal_ref_idc = GST_H264_NAL_REF_IDC_HIGH;
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
*nal_unit_type = GST_H264_NAL_SLICE_IDR;
else
*nal_unit_type = GST_H264_NAL_SLICE;
break;
case GST_VAAPI_PICTURE_TYPE_P:
*nal_ref_idc = GST_H264_NAL_REF_IDC_MEDIUM;
*nal_unit_type = GST_H264_NAL_SLICE;
break;
case GST_VAAPI_PICTURE_TYPE_B:
*nal_ref_idc = GST_H264_NAL_REF_IDC_NONE;
*nal_unit_type = GST_H264_NAL_SLICE;
break;
default:
return FALSE;
}
return TRUE;
}
/* Adds the supplied prefix nal header to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_prefix_nal_header (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
{
GstVaapiEncPackedHeader *packed_prefix_nal;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_prefix_nal_param = { 0 };
guint32 data_bit_size;
guint8 *data;
guint8 nal_ref_idc, nal_unit_type;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
goto bs_error;
nal_unit_type = GST_H264_NAL_PREFIX_UNIT;
bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
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_prefix_nal_param.type = VAEncPackedHeaderRawData;
packed_prefix_nal_param.bit_length = data_bit_size;
packed_prefix_nal_param.has_emulation_bytes = 0;
packed_prefix_nal =
gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_prefix_nal_param, sizeof (packed_prefix_nal_param), data,
(data_bit_size + 7) / 8);
g_assert (packed_prefix_nal);
gst_vaapi_enc_slice_add_packed_header (slice, packed_prefix_nal);
gst_vaapi_codec_object_replace (&packed_prefix_nal, NULL);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Prefix NAL unit header");
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
}
/* 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 (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSlice * slice)
{
GstVaapiEncPackedHeader *packed_slice;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_slice_param = { 0 };
const VAEncSliceParameterBufferH264 *const slice_param = slice->param;
guint32 data_bit_size;
guint8 *data;
guint8 nal_ref_idc, nal_unit_type;
gst_bit_writer_init (&bs, 128 * 8);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
if (!get_nal_hdr_attributes (picture, &nal_ref_idc, &nal_unit_type))
goto bs_error;
/* pack nal_unit_header_mvc_extension() for the non base view */
if (encoder->is_mvc && encoder->view_idx) {
bs_write_nal_header (&bs, nal_ref_idc, GST_H264_NAL_SLICE_EXT);
bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx);
} else
bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type);
bs_write_slice (&bs, slice_param, encoder, picture);
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 (GstVaapiEncoderH264 * encoder, GstVaapiEncoderH264Ref * ref)
{
if (!ref)
return;
if (ref->pic)
gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder), ref->pic);
g_slice_free (GstVaapiEncoderH264Ref, ref);
}
static inline GstVaapiEncoderH264Ref *
reference_pic_create (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
{
GstVaapiEncoderH264Ref *const ref = g_slice_new0 (GstVaapiEncoderH264Ref);
ref->pic = surface;
ref->frame_num = picture->frame_num;
ref->poc = picture->poc;
return ref;
}
static gboolean
reference_list_update (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiSurfaceProxy * surface)
{
GstVaapiEncoderH264Ref *ref;
GstVaapiH264ViewRefPool *const ref_pool =
&encoder->ref_pools[encoder->view_idx];
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 (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture,
GstVaapiEncoderH264Ref ** reflist_0,
guint * reflist_0_count,
GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count)
{
GstVaapiEncoderH264Ref *tmp;
GstVaapiH264ViewRefPool *const ref_pool =
&encoder->ref_pools[encoder->view_idx];
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 = (GstVaapiEncoderH264Ref *) 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] = (GstVaapiEncoderH264Ref *) 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] = (GstVaapiEncoderH264Ref *) iter->data;
++count;
}
*reflist_1_count = count;
return TRUE;
}
/* Fills in VA sequence parameter buffer */
static gboolean
fill_sequence (GstVaapiEncoderH264 * encoder, GstVaapiEncSequence * sequence)
{
VAEncSequenceParameterBufferH264 *const seq_param = sequence->param;
GstVaapiH264ViewRefPool *const ref_pool =
&encoder->ref_pools[encoder->view_idx];
memset (seq_param, 0, sizeof (VAEncSequenceParameterBufferH264));
seq_param->seq_parameter_set_id = encoder->view_idx;
seq_param->level_idc = encoder->level_idc;
seq_param->intra_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder);
seq_param->ip_period = 1 + encoder->num_bframes;
seq_param->bits_per_second = encoder->bitrate_bits;
seq_param->max_num_ref_frames = ref_pool->max_ref_frames;
seq_param->picture_width_in_mbs = encoder->mb_width;
seq_param->picture_height_in_mbs = encoder->mb_height;
/*sequence field values */
seq_param->seq_fields.value = 0;
seq_param->seq_fields.bits.chroma_format_idc = 1;
seq_param->seq_fields.bits.frame_mbs_only_flag = 1;
seq_param->seq_fields.bits.mb_adaptive_frame_field_flag = FALSE;
seq_param->seq_fields.bits.seq_scaling_matrix_present_flag = FALSE;
/* direct_8x8_inference_flag default false */
seq_param->seq_fields.bits.direct_8x8_inference_flag = FALSE;
g_assert (encoder->log2_max_frame_num >= 4);
seq_param->seq_fields.bits.log2_max_frame_num_minus4 =
encoder->log2_max_frame_num - 4;
/* picture order count */
encoder->pic_order_cnt_type = seq_param->seq_fields.bits.pic_order_cnt_type =
0;
g_assert (encoder->log2_max_pic_order_cnt >= 4);
seq_param->seq_fields.bits.log2_max_pic_order_cnt_lsb_minus4 =
encoder->log2_max_pic_order_cnt - 4;
seq_param->bit_depth_luma_minus8 = 0;
seq_param->bit_depth_chroma_minus8 = 0;
/* not used if pic_order_cnt_type == 0 */
if (seq_param->seq_fields.bits.pic_order_cnt_type == 1) {
encoder->delta_pic_order_always_zero_flag =
seq_param->seq_fields.bits.delta_pic_order_always_zero_flag = TRUE;
seq_param->num_ref_frames_in_pic_order_cnt_cycle = 0;
seq_param->offset_for_non_ref_pic = 0;
seq_param->offset_for_top_to_bottom_field = 0;
memset (seq_param->offset_for_ref_frame, 0,
sizeof (seq_param->offset_for_ref_frame));
}
/* frame_cropping_flag */
if ((GST_VAAPI_ENCODER_WIDTH (encoder) & 15) ||
(GST_VAAPI_ENCODER_HEIGHT (encoder) & 15)) {
static const guint SubWidthC[] = { 1, 2, 2, 1 };
static const guint SubHeightC[] = { 1, 2, 1, 1 };
const guint CropUnitX =
SubWidthC[seq_param->seq_fields.bits.chroma_format_idc];
const guint CropUnitY =
SubHeightC[seq_param->seq_fields.bits.chroma_format_idc] *
(2 - seq_param->seq_fields.bits.frame_mbs_only_flag);
seq_param->frame_cropping_flag = 1;
seq_param->frame_crop_left_offset = 0;
seq_param->frame_crop_right_offset =
(16 * encoder->mb_width -
GST_VAAPI_ENCODER_WIDTH (encoder)) / CropUnitX;
seq_param->frame_crop_top_offset = 0;
seq_param->frame_crop_bottom_offset =
(16 * encoder->mb_height -
GST_VAAPI_ENCODER_HEIGHT (encoder)) / CropUnitY;
}
/* 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 = FALSE;
if (seq_param->vui_fields.bits.aspect_ratio_info_present_flag) {
const GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
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;
/* if vui_parameters_present_flag is TRUE and sps data belongs to
* subset sps, timing_info_preset_flag should be zero (H.7.4.2.1.1) */
seq_param->vui_fields.bits.timing_info_present_flag = !encoder->view_idx;
if (seq_param->vui_fields.bits.timing_info_present_flag) {
seq_param->num_units_in_tick = GST_VAAPI_ENCODER_FPS_D (encoder);
seq_param->time_scale = GST_VAAPI_ENCODER_FPS_N (encoder) * 2;
}
}
return TRUE;
}
/* Fills in VA picture parameter buffer */
static gboolean
fill_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
GstVaapiCodedBuffer * codedbuf, GstVaapiSurfaceProxy * surface)
{
VAEncPictureParameterBufferH264 *const pic_param = picture->param;
GstVaapiH264ViewRefPool *const ref_pool =
&encoder->ref_pools[encoder->view_idx];
GstVaapiEncoderH264Ref *ref_pic;
GList *reflist;
guint i;
memset (pic_param, 0, sizeof (VAEncPictureParameterBufferH264));
/* reference list, */
pic_param->CurrPic.picture_id = GST_VAAPI_SURFACE_PROXY_SURFACE_ID (surface);
pic_param->CurrPic.TopFieldOrderCnt = picture->poc;
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->ReferenceFrames[i].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (ref_pic->pic);
++i;
}
g_assert (i <= 16 && i <= ref_pool->max_ref_frames);
}
for (; i < 16; ++i) {
pic_param->ReferenceFrames[i].picture_id = VA_INVALID_ID;
}
pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf);
pic_param->pic_parameter_set_id = encoder->view_idx;
pic_param->seq_parameter_set_id = encoder->view_idx;
pic_param->last_picture = 0; /* means last encoding picture */
pic_param->frame_num = picture->frame_num;
pic_param->pic_init_qp = encoder->init_qp;
pic_param->num_ref_idx_l0_active_minus1 =
(ref_pool->max_reflist0_count ? (ref_pool->max_reflist0_count - 1) : 0);
pic_param->num_ref_idx_l1_active_minus1 =
(ref_pool->max_reflist1_count ? (ref_pool->max_reflist1_count - 1) : 0);
pic_param->chroma_qp_index_offset = 0;
pic_param->second_chroma_qp_index_offset = 0;
/* 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.reference_pic_flag =
(picture->type != GST_VAAPI_PICTURE_TYPE_B);
pic_param->pic_fields.bits.entropy_coding_mode_flag = encoder->use_cabac;
pic_param->pic_fields.bits.weighted_pred_flag = FALSE;
pic_param->pic_fields.bits.weighted_bipred_idc = 0;
pic_param->pic_fields.bits.constrained_intra_pred_flag = 0;
pic_param->pic_fields.bits.transform_8x8_mode_flag = encoder->use_dct8x8;
/* enable debloking */
pic_param->pic_fields.bits.deblocking_filter_control_present_flag = TRUE;
pic_param->pic_fields.bits.redundant_pic_cnt_present_flag = FALSE;
/* bottom_field_pic_order_in_frame_present_flag */
pic_param->pic_fields.bits.pic_order_present_flag = FALSE;
pic_param->pic_fields.bits.pic_scaling_matrix_present_flag = FALSE;
return TRUE;
}
/* Adds slice headers to picture */
static gboolean
add_slice_headers (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture,
GstVaapiEncoderH264Ref ** reflist_0, guint reflist_0_count,
GstVaapiEncoderH264Ref ** reflist_1, guint reflist_1_count)
{
VAEncSliceParameterBufferH264 *slice_param;
GstVaapiEncSlice *slice;
guint slice_of_mbs, slice_mod_mbs, cur_slice_mbs;
guint mb_size;
guint last_mb_index;
guint i_slice, i_ref;
g_assert (picture);
mb_size = encoder->mb_width * encoder->mb_height;
g_assert (encoder->num_slices && encoder->num_slices < mb_size);
slice_of_mbs = mb_size / encoder->num_slices;
slice_mod_mbs = mb_size % encoder->num_slices;
last_mb_index = 0;
for (i_slice = 0; i_slice < encoder->num_slices; ++i_slice) {
cur_slice_mbs = slice_of_mbs;
if (slice_mod_mbs) {
++cur_slice_mbs;
--slice_mod_mbs;
}
slice = GST_VAAPI_ENC_SLICE_NEW (H264, encoder);
g_assert (slice && slice->param_id != VA_INVALID_ID);
slice_param = slice->param;
memset (slice_param, 0, sizeof (VAEncSliceParameterBufferH264));
slice_param->macroblock_address = last_mb_index;
slice_param->num_macroblocks = cur_slice_mbs;
slice_param->macroblock_info = VA_INVALID_ID;
slice_param->slice_type = h264_get_slice_type (picture->type);
g_assert (slice_param->slice_type != -1);
slice_param->pic_parameter_set_id = encoder->view_idx;
slice_param->idr_pic_id = encoder->idr_num;
slice_param->pic_order_cnt_lsb = picture->poc;
/* not used if pic_order_cnt_type = 0 */
slice_param->delta_pic_order_cnt_bottom = 0;
memset (slice_param->delta_pic_order_cnt, 0,
sizeof (slice_param->delta_pic_order_cnt));
/* only works for B frames */
slice_param->direct_spatial_mv_pred_flag = FALSE;
/* default equal to picture parameters */
slice_param->num_ref_idx_active_override_flag = FALSE;
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->RefPicList0[i_ref].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_0[i_ref]->pic);
}
g_assert (i_ref == 1);
}
for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList0); ++i_ref) {
slice_param->RefPicList0[i_ref].picture_id = VA_INVALID_SURFACE;
}
i_ref = 0;
if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
for (; i_ref < reflist_1_count; ++i_ref) {
slice_param->RefPicList1[i_ref].picture_id =
GST_VAAPI_SURFACE_PROXY_SURFACE_ID (reflist_1[i_ref]->pic);
}
g_assert (i_ref == 1);
}
for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList1); ++i_ref) {
slice_param->RefPicList1[i_ref].picture_id = VA_INVALID_SURFACE;
}
/* not used if pic_param.pic_fields.bits.weighted_pred_flag == FALSE */
slice_param->luma_log2_weight_denom = 0;
slice_param->chroma_log2_weight_denom = 0;
slice_param->luma_weight_l0_flag = FALSE;
memset (slice_param->luma_weight_l0, 0,
sizeof (slice_param->luma_weight_l0));
memset (slice_param->luma_offset_l0, 0,
sizeof (slice_param->luma_offset_l0));
slice_param->chroma_weight_l0_flag = FALSE;
memset (slice_param->chroma_weight_l0, 0,
sizeof (slice_param->chroma_weight_l0));
memset (slice_param->chroma_offset_l0, 0,
sizeof (slice_param->chroma_offset_l0));
slice_param->luma_weight_l1_flag = FALSE;
memset (slice_param->luma_weight_l1, 0,
sizeof (slice_param->luma_weight_l1));
memset (slice_param->luma_offset_l1, 0,
sizeof (slice_param->luma_offset_l1));
slice_param->chroma_weight_l1_flag = FALSE;
memset (slice_param->chroma_weight_l1, 0,
sizeof (slice_param->chroma_weight_l1));
memset (slice_param->chroma_offset_l1, 0,
sizeof (slice_param->chroma_offset_l1));
slice_param->cabac_init_idc = 0;
slice_param->slice_qp_delta = encoder->init_qp - encoder->min_qp;
if (slice_param->slice_qp_delta > 4)
slice_param->slice_qp_delta = 4;
slice_param->disable_deblocking_filter_idc = 0;
slice_param->slice_alpha_c0_offset_div2 = 2;
slice_param->slice_beta_offset_div2 = 2;
/* set calculation for next slice */
last_mb_index += cur_slice_mbs;
/* add packed Prefix NAL unit before each Coded slice NAL in base view */
if (encoder->is_mvc && !encoder->view_idx &&
(GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_RAW_DATA)
&& !add_packed_prefix_nal_header (encoder, picture, slice))
goto error_create_packed_prefix_nal_hdr;
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);
}
g_assert (last_mb_index == mb_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;
}
error_create_packed_prefix_nal_hdr:
{
GST_ERROR ("failed to create packed prefix nal header buffer");
gst_vaapi_codec_object_replace (&slice, NULL);
return FALSE;
}
}
/* Generates and submits SPS header accordingly into the bitstream */
static gboolean
ensure_sequence (GstVaapiEncoderH264 * 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 (H264, encoder);
if (!sequence || !fill_sequence (encoder, sequence))
goto error_create_seq_param;
/* add subset sps for non-base view and sps for base view */
if (encoder->is_mvc && encoder->view_idx) {
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
&& !add_packed_sequence_header_mvc (encoder, picture, sequence))
goto error_create_packed_seq_hdr;
} else {
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) & VAEncPackedHeaderH264_SPS)
&& !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);
}
if (!encoder->is_mvc || encoder->view_idx > 0)
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 additional control parameters */
static gboolean
ensure_misc_params (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiEncMiscParam *misc = NULL;
VAEncMiscParameterRateControl *rate_control;
/* HRD params */
misc = GST_VAAPI_ENC_MISC_PARAM_NEW (HRD, encoder);
g_assert (misc);
if (!misc)
return FALSE;
fill_hrd_params (encoder, misc->data);
gst_vaapi_enc_picture_add_misc_param (picture, misc);
gst_vaapi_codec_object_replace (&misc, NULL);
/* RateControl params */
if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR ||
GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR) {
misc = GST_VAAPI_ENC_MISC_PARAM_NEW (RateControl, encoder);
g_assert (misc);
if (!misc)
return FALSE;
rate_control = misc->data;
memset (rate_control, 0, sizeof (VAEncMiscParameterRateControl));
rate_control->bits_per_second = encoder->bitrate_bits;
rate_control->target_percentage = 70;
rate_control->window_size = encoder->cpb_length;
rate_control->initial_qp = encoder->init_qp;
rate_control->min_qp = encoder->min_qp;
rate_control->basic_unit_size = 0;
gst_vaapi_enc_picture_add_misc_param (picture, misc);
gst_vaapi_codec_object_replace (&misc, NULL);
}
return TRUE;
}
/* Generates and submits PPS header accordingly into the bitstream */
static gboolean
ensure_picture (GstVaapiEncoderH264 * 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) & VAEncPackedHeaderH264_PPS)
&& !add_packed_picture_header (encoder, picture)) {
GST_ERROR ("set picture packed header failed");
return FALSE;
}
return TRUE;
}
/* Generates slice headers */
static gboolean
ensure_slices (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiEncoderH264Ref *reflist_0[16];
GstVaapiEncoderH264Ref *reflist_1[16];
GstVaapiH264ViewRefPool *const ref_pool =
&encoder->ref_pools[encoder->view_idx];
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;
}
/* Normalizes bitrate (and CPB size) for HRD conformance */
static void
ensure_bitrate_hrd (GstVaapiEncoderH264 * encoder)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
guint bitrate, cpb_size;
if (!base_encoder->bitrate) {
encoder->bitrate_bits = 0;
return;
}
/* Round down bitrate. This is a hard limit mandated by the user */
g_assert (SX_BITRATE >= 6);
bitrate = (base_encoder->bitrate * 1000) & ~((1U << SX_BITRATE) - 1);
if (bitrate != encoder->bitrate_bits) {
GST_DEBUG ("HRD bitrate: %u bits/sec", bitrate);
encoder->bitrate_bits = bitrate;
encoder->config_changed = TRUE;
}
/* Round up CPB size. This is an HRD compliance detail */
g_assert (SX_CPB_SIZE >= 4);
cpb_size = gst_util_uint64_scale (bitrate, encoder->cpb_length, 1000) &
~((1U << SX_CPB_SIZE) - 1);
if (cpb_size != encoder->cpb_length_bits) {
GST_DEBUG ("HRD CPB size: %u bits", cpb_size);
encoder->cpb_length_bits = cpb_size;
encoder->config_changed = TRUE;
}
}
/* Estimates a good enough bitrate if none was supplied */
static void
ensure_bitrate (GstVaapiEncoderH264 * encoder)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
/* Default compression: 48 bits per macroblock in "high-compression" mode */
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) {
/* According to the literature and testing, CABAC entropy coding
mode could provide for +10% to +18% improvement in general,
thus estimating +15% here ; and using adaptive 8x8 transforms
in I-frames could bring up to +10% improvement. */
guint bits_per_mb = 48;
if (!encoder->use_cabac)
bits_per_mb += (bits_per_mb * 15) / 100;
if (!encoder->use_dct8x8)
bits_per_mb += (bits_per_mb * 10) / 100;
base_encoder->bitrate =
encoder->mb_width * encoder->mb_height * bits_per_mb *
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;
}
ensure_bitrate_hrd (encoder);
}
/* Constructs profile and level information based on user-defined limits */
static GstVaapiEncoderStatus
ensure_profile_and_level (GstVaapiEncoderH264 * encoder)
{
const GstVaapiProfile profile = encoder->profile;
const GstVaapiLevelH264 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 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) {
GST_DEBUG ("selected %s profile at level %s",
gst_vaapi_utils_h264_get_profile_string (encoder->profile),
gst_vaapi_utils_h264_get_level_string (encoder->level));
encoder->config_changed = TRUE;
}
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static void
reset_properties (GstVaapiEncoderH264 * encoder)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
guint mb_size, i;
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;
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;
mb_size = encoder->mb_width * encoder->mb_height;
if (encoder->num_slices > (mb_size + 1) / 2)
encoder->num_slices = (mb_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_frame_num, max_poc */
encoder->log2_max_frame_num =
h264_get_log2_max_frame_num (encoder->idr_period);
g_assert (encoder->log2_max_frame_num >= 4);
encoder->max_frame_num = (1 << encoder->log2_max_frame_num);
encoder->log2_max_pic_order_cnt = encoder->log2_max_frame_num + 1;
encoder->max_pic_order_cnt = (1 << encoder->log2_max_pic_order_cnt);
encoder->idr_num = 0;
encoder->is_mvc = encoder->num_views > 1;
for (i = 0; i < encoder->num_views; i++) {
GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
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;
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[i];
reorder_pool->frame_index = 0;
}
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h264_encode (GstVaapiEncoder * base_encoder,
GstVaapiEncPicture * picture, GstVaapiCodedBufferProxy * codedbuf)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_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_misc_params (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_h264_flush (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVaapiH264ViewReorderPool *reorder_pool;
GstVaapiEncPicture *pic;
guint i;
for (i = 0; i < encoder->num_views; i++) {
reorder_pool = &encoder->reorder_pools[i];
reorder_pool->frame_index = 0;
reorder_pool->cur_frame_num = 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_h264_get_codec_data (GstVaapiEncoder * base_encoder,
GstBuffer ** out_buffer_ptr)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
const guint32 configuration_version = 0x01;
const guint32 nal_length_size = 4;
guint8 profile_idc, profile_comp, level_idc;
GstMapInfo sps_info, pps_info;
GstBitWriter bs;
GstBuffer *buffer;
if (!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->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;
/* skip sps_data[0], which is the nal_unit_type */
profile_idc = sps_info.data[1];
profile_comp = sps_info.data[2];
level_idc = sps_info.data[3];
/* Header */
gst_bit_writer_init (&bs, (sps_info.size + pps_info.size + 64) * 8);
WRITE_UINT32 (&bs, configuration_version, 8);
WRITE_UINT32 (&bs, profile_idc, 8);
WRITE_UINT32 (&bs, profile_comp, 8);
WRITE_UINT32 (&bs, level_idc, 8);
WRITE_UINT32 (&bs, 0x3f, 6); /* 111111 */
WRITE_UINT32 (&bs, nal_length_size - 1, 2);
WRITE_UINT32 (&bs, 0x07, 3); /* 111 */
/* Write SPS */
WRITE_UINT32 (&bs, 1, 5); /* SPS count = 1 */
g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0);
WRITE_UINT32 (&bs, sps_info.size, 16);
gst_bit_writer_put_bytes (&bs, sps_info.data, sps_info.size);
/* Write PPS */
WRITE_UINT32 (&bs, 1, 8); /* PPS count = 1 */
WRITE_UINT32 (&bs, pps_info.size, 16);
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);
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->sps_data, &sps_info);
gst_buffer_unmap (encoder->pps_data, &pps_info);
gst_bit_writer_clear (&bs, TRUE);
return FALSE;
}
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;
}
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder,
GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVaapiH264ViewReorderPool *reorder_pool = NULL;
GstVaapiEncPicture *picture;
gboolean is_idr = FALSE;
*output = NULL;
/* encoding views alternatively for MVC */
if (encoder->is_mvc) {
if (frame)
encoder->view_idx = frame->system_frame_number % MAX_NUM_VIEWS;
else
encoder->view_idx = (encoder->view_idx + 1) % MAX_NUM_VIEWS;
}
reorder_pool = &encoder->reorder_pools[encoder->view_idx];
if (!frame) {
if (reorder_pool->reorder_state != GST_VAAPI_ENC_H264_REORD_DUMP_FRAMES)
return GST_VAAPI_ENCODER_STATUS_NO_SURFACE;
/* reorder_state = GST_VAAPI_ENC_H264_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_H264_REORD_WAIT_FRAMES;
}
goto end;
}
/* new frame coming */
picture = GST_VAAPI_ENC_PICTURE_NEW (H264, encoder, frame);
if (!picture) {
GST_WARNING ("create H264 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 * 2) %
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->cur_frame_num;
++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);
++reorder_pool->cur_frame_num;
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_H264_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_H264_REORD_WAIT_FRAMES;
}
goto end;
}
/* new p/b frames coming */
++reorder_pool->frame_index;
if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_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;
}
++reorder_pool->cur_frame_num;
set_p_frame (picture, encoder);
if (reorder_pool->reorder_state == GST_VAAPI_ENC_H264_REORD_WAIT_FRAMES) {
g_queue_foreach (&reorder_pool->reorder_frame_list, (GFunc) set_b_frame,
encoder);
reorder_pool->reorder_state = GST_VAAPI_ENC_H264_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)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (encoder);
const guint DEFAULT_SURFACES_COUNT = 3;
/* Maximum sizes for common headers (in bits) */
enum
{
MAX_SPS_HDR_SIZE = 16473,
MAX_VUI_PARAMS_SIZE = 210,
MAX_HRD_PARAMS_SIZE = 4103,
MAX_PPS_HDR_SIZE = 101,
MAX_SLICE_HDR_SIZE = 397 + 2572 + 6670 + 2402,
};
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)
* encoder->num_views;
/* Only YUV 4:2:0 formats are supported for now. This means that we
have a limit of 3200 bits per macroblock. */
/* XXX: check profile and compute RawMbBits */
base_encoder->codedbuf_size = (GST_ROUND_UP_16 (vip->width) *
GST_ROUND_UP_16 (vip->height) / 256) * 400;
/* Account for SPS header */
/* XXX: exclude scaling lists, MVC/SVC extensions */
base_encoder->codedbuf_size += 4 + GST_ROUND_UP_8 (MAX_SPS_HDR_SIZE +
MAX_VUI_PARAMS_SIZE + 2 * MAX_HRD_PARAMS_SIZE) / 8;
/* Account for PPS header */
/* XXX: exclude slice groups, scaling lists, MVC/SVC extensions */
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) / 8);
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h264_reconfigure (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVaapiEncoderStatus status;
guint mb_width, mb_height;
mb_width = (GST_VAAPI_ENCODER_WIDTH (encoder) + 15) / 16;
mb_height = (GST_VAAPI_ENCODER_HEIGHT (encoder) + 15) / 16;
if (mb_width != encoder->mb_width || mb_height != encoder->mb_height) {
GST_DEBUG ("resolution: %dx%d", GST_VAAPI_ENCODER_WIDTH (encoder),
GST_VAAPI_ENCODER_HEIGHT (encoder));
encoder->mb_width = mb_width;
encoder->mb_height = mb_height;
encoder->config_changed = TRUE;
}
status = ensure_profile_and_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_h264_init (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
guint32 i;
/* Multi-view coding information */
encoder->is_mvc = FALSE;
encoder->num_views = 1;
encoder->view_idx = 0;
/* re-ordering list initialize */
for (i = 0; i < MAX_NUM_VIEWS; i++) {
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[i];
g_queue_init (&reorder_pool->reorder_frame_list);
reorder_pool->reorder_state = GST_VAAPI_ENC_H264_REORD_NONE;
reorder_pool->frame_index = 0;
reorder_pool->cur_frame_num = 0;
reorder_pool->cur_present_index = 0;
}
/* reference list info initialize */
for (i = 0; i < MAX_NUM_VIEWS; i++) {
GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
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_h264_finalize (GstVaapiEncoder * base_encoder)
{
/*free private buffers */
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
GstVaapiEncPicture *pic;
GstVaapiEncoderH264Ref *ref;
guint32 i;
gst_buffer_replace (&encoder->sps_data, NULL);
gst_buffer_replace (&encoder->subset_sps_data, NULL);
gst_buffer_replace (&encoder->pps_data, NULL);
/* reference list info de-init */
for (i = 0; i < MAX_NUM_VIEWS; i++) {
GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
while (!g_queue_is_empty (&ref_pool->ref_list)) {
ref = (GstVaapiEncoderH264Ref *) g_queue_pop_head (&ref_pool->ref_list);
reference_pic_free (encoder, ref);
}
g_queue_clear (&ref_pool->ref_list);
}
/* re-ordering list initialize */
for (i = 0; i < MAX_NUM_VIEWS; i++) {
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_pools[i];
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_h264_set_property (GstVaapiEncoder * base_encoder,
gint prop_id, const GValue * value)
{
GstVaapiEncoderH264 *const encoder =
GST_VAAPI_ENCODER_H264_CAST (base_encoder);
switch (prop_id) {
case GST_VAAPI_ENCODER_H264_PROP_MAX_BFRAMES:
encoder->num_bframes = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_INIT_QP:
encoder->init_qp = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_MIN_QP:
encoder->min_qp = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_NUM_SLICES:
encoder->num_slices = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_CABAC:
encoder->use_cabac = g_value_get_boolean (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_DCT8X8:
encoder->use_dct8x8 = g_value_get_boolean (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH:
encoder->cpb_length = g_value_get_uint (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS:
encoder->num_views = 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 (H264);
static inline const GstVaapiEncoderClass *
gst_vaapi_encoder_h264_class (void)
{
static const GstVaapiEncoderClass GstVaapiEncoderH264Class = {
GST_VAAPI_ENCODER_CLASS_INIT (H264, h264),
.set_property = gst_vaapi_encoder_h264_set_property,
.get_codec_data = gst_vaapi_encoder_h264_get_codec_data
};
return &GstVaapiEncoderH264Class;
}
/**
* gst_vaapi_encoder_h264_new:
* @display: a #GstVaapiDisplay
*
* Creates a new #GstVaapiEncoder for H.264 encoding. Note that the
* only supported output stream format is "byte-stream" format.
*
* Return value: the newly allocated #GstVaapiEncoder object
*/
GstVaapiEncoder *
gst_vaapi_encoder_h264_new (GstVaapiDisplay * display)
{
return gst_vaapi_encoder_new (gst_vaapi_encoder_h264_class (), display);
}
/**
* gst_vaapi_encoder_h264_get_default_properties:
*
* Determines the set of common and H.264 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 #GstVaapiEncoderH264,
* or %NULL if an error occurred.
*/
GPtrArray *
gst_vaapi_encoder_h264_get_default_properties (void)
{
const GstVaapiEncoderClass *const klass = gst_vaapi_encoder_h264_class ();
GPtrArray *props;
props = gst_vaapi_encoder_properties_get_default (klass);
if (!props)
return NULL;
/**
* GstVaapiEncoderH264:max-bframes:
*
* The number of B-frames between I and P.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_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));
/**
* GstVaapiEncoderH264:init-qp:
*
* The initial quantizer value.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_INIT_QP,
g_param_spec_uint ("init-qp",
"Initial QP", "Initial quantizer value", 1, 51, 26,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:min-qp:
*
* The minimum quantizer value.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_MIN_QP,
g_param_spec_uint ("min-qp",
"Minimum QP", "Minimum quantizer value", 1, 51, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:num-slices:
*
* The number of slices per frame.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_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));
/**
* GstVaapiEncoderH264:cabac:
*
* Enable CABAC entropy coding mode for improved compression ratio,
* at the expense that the minimum target profile is Main. Default
* is CAVLC entropy coding mode.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_CABAC,
g_param_spec_boolean ("cabac",
"Enable CABAC",
"Enable CABAC entropy coding mode",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:dct8x8:
*
* Enable adaptive use of 8x8 transforms in I-frames. This improves
* the compression ratio by the minimum target profile is High.
* Default is to use 4x4 DCT only.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_DCT8X8,
g_param_spec_boolean ("dct8x8",
"Enable 8x8 DCT",
"Enable adaptive use of 8x8 transforms in I-frames",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:cpb-length:
*
* The size of the CPB buffer in milliseconds.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH,
g_param_spec_uint ("cpb-length",
"CPB Length", "Length of the CPB buffer in milliseconds",
1, 10000, DEFAULT_CPB_LENGTH,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:num-views:
*
* The number of views for MVC encoding .
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS,
g_param_spec_uint ("num-views",
"Number of Views",
"Number of Views for MVC encoding",
1, MAX_NUM_VIEWS, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
return props;
}
/**
* gst_vaapi_encoder_h264_set_max_profile:
* @encoder: a #GstVaapiEncoderH264
* @profile: an H.264 #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_h264_set_max_profile (GstVaapiEncoderH264 * 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_H264)
return FALSE;
profile_idc = gst_vaapi_utils_h264_get_profile_idc (profile);
if (!profile_idc)
return FALSE;
encoder->max_profile_idc = profile_idc;
return TRUE;
}
/**
* gst_vaapi_encoder_h264_get_profile_and_level:
* @encoder: a #GstVaapiEncoderH264
* @out_profile_ptr: return location for the #GstVaapiProfile
* @out_level_ptr: return location for the #GstVaapiLevelH264
*
* Queries the H.264 @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_h264_get_profile_and_level (GstVaapiEncoderH264 * encoder,
GstVaapiProfile * out_profile_ptr, GstVaapiLevelH264 * out_level_ptr)
{
g_return_val_if_fail (encoder != NULL, FALSE);
if (!encoder->profile || !encoder->level)
return FALSE;
if (out_profile_ptr)
*out_profile_ptr = encoder->profile;
if (out_level_ptr)
*out_level_ptr = encoder->level;
return TRUE;
}
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