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gstreamer/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
Sreerenj Balachandran c91de2398a encoder : h264: Disable b-frame encode in low-power mode 
This is a workaround since vaapi-intel-driver doesn't have
support for B-frame encode when utilizing low-power-enc
hardware block.

Fixme :We should query the VAConfigAttribEncMaxRefFrames
instead of blindly disabling b-frame support and set b/p frame count,
buffer pool size etc based on the query result.

https://bugzilla.gnome.org/show_bug.cgi?id=766050
2016-05-13 11:45:20 +03:00

3200 lines
104 KiB
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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
*/
/* 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 <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 10
/* Define the maximum value for view-id */
#define MAX_VIEW_ID 1023
/* 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) | \
GST_VAAPI_ENCODER_TUNE_MASK (LOW_POWER))
/* 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 | \
VA_ENC_PACKED_HEADER_MISC)
#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
/* only for internal usage, values won't be equal to actual payload type */
typedef enum
{
GST_VAAPI_H264_SEI_UNKNOWN = 0,
GST_VAAPI_H264_SEI_BUF_PERIOD = (1 << 0),
GST_VAAPI_H264_SEI_PIC_TIMING = (1 << 1)
} GstVaapiH264SeiPayloadType;
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 frame_count; /* monotonically increasing with in every idr period */
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;
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, 1, 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, guint16 * view_ids,
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, view_ids[i]);
for (i = 1; i <= num_views_minus1; i++) {
guint32 num_anchor_refs_l0 = 0;
guint32 num_anchor_refs_l1 = 0;
WRITE_UE (bs, num_anchor_refs_l0);
for (j = 0; j < num_anchor_refs_l0; j++)
WRITE_UE (bs, 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;
guint32 num_non_anchor_refs_l1 = 0;
WRITE_UE (bs, num_non_anchor_refs_l0);
for (j = 0; j < num_non_anchor_refs_l0; j++)
WRITE_UE (bs, 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;
GstVaapiEntrypoint entrypoint;
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; /* View Order Index (VOIdx) */
guint32 num_views;
guint16 view_ids[MAX_NUM_VIEWS];
GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS];
GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS];
};
/* Write a SEI buffering period payload */
static gboolean
bs_write_sei_buf_period (GstBitWriter * bs,
GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
guint initial_cpb_removal_delay = 0;
guint initial_cpb_removal_delay_offset = 0;
guint8 initial_cpb_removal_delay_length = 24;
/* sequence_parameter_set_id */
WRITE_UE (bs, encoder->view_idx);
/* NalHrdBpPresentFlag == TRUE */
/* cpb_cnt_minus1 == 0 */
/* decoding should start when the CPB fullness reaches half of cpb size
* initial_cpb_remvoal_delay = (((cpb_length / 2) * 90000) / 1000) */
initial_cpb_removal_delay = encoder->cpb_length * 45;
/* initial_cpb_remvoal_dealy */
WRITE_UINT32 (bs, initial_cpb_removal_delay,
initial_cpb_removal_delay_length);
/* initial_cpb_removal_delay_offset */
WRITE_UINT32 (bs, initial_cpb_removal_delay_offset,
initial_cpb_removal_delay_length);
/* VclHrdBpPresentFlag == FALSE */
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Buffering Period SEI message");
return FALSE;
}
}
/* Write a SEI picture timing payload */
static gboolean
bs_write_sei_pic_timing (GstBitWriter * bs,
GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiH264ViewReorderPool *reorder_pool = NULL;
guint cpb_removal_delay;
guint dpb_output_delay;
guint8 cpb_removal_delay_length = 24;
guint8 dpb_output_delay_length = 24;
guint pic_struct = 0;
guint clock_timestamp_flag = 0;
reorder_pool = &encoder->reorder_pools[encoder->view_idx];
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
reorder_pool->frame_count = 0;
else
reorder_pool->frame_count++;
/* clock-tick = no_units_in_tick/time_scale (C-1)
* time_scale = FPS_N * 2 (E.2.1)
* num_units_in_tick = FPS_D (E.2.1)
* frame_duration = clock-tick * 2
* so removal time for one frame is 2 clock-ticks.
* but adding a tolerance of one frame duration,
* which is 2 more clock-ticks */
cpb_removal_delay = (reorder_pool->frame_count * 2 + 2);
if (picture->type == GST_VAAPI_PICTURE_TYPE_B)
dpb_output_delay = 0;
else
dpb_output_delay = picture->poc - reorder_pool->frame_count * 2;
/* CpbDpbDelaysPresentFlag == 1 */
WRITE_UINT32 (bs, cpb_removal_delay, cpb_removal_delay_length);
WRITE_UINT32 (bs, dpb_output_delay, dpb_output_delay_length);
/* pic_struct_present_flag == 1 */
/* pic_struct */
WRITE_UINT32 (bs, pic_struct, 4);
/* clock_timestamp_flag */
WRITE_UINT32 (bs, clock_timestamp_flag, 1);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Picture Timing SEI message");
return FALSE;
}
}
/* 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;
G_GNUC_UNUSED gsize ret; /* FIXME */
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 = encoder->entrypoint;
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");
profile = GST_VAAPI_PROFILE_UNKNOWN;
/* 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;
}
if (profile) {
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;
case GST_VAAPI_ENCODER_TUNE_LOW_POWER:
/* Set low-power encode entry point. If hardware doesn't have
* support, it will fail in ensure_hw_profile() in later stage.
* So not duplicating the profile/entrypont query mechanism
* here as a part of optimization */
encoder->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP;
success = TRUE;
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,
encoder->view_ids, &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
add_packed_sei_header (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiH264SeiPayloadType payloadtype)
{
GstVaapiEncPackedHeader *packed_sei;
GstBitWriter bs, bs_buf_period, bs_pic_timing;
VAEncPackedHeaderParameterBuffer packed_sei_param = { 0 };
guint32 data_bit_size;
guint8 buf_period_payload_size = 0, pic_timing_payload_size = 0;
guint8 *data, *buf_period_payload = NULL, *pic_timing_payload = NULL;
gboolean need_buf_period, need_pic_timing;
gst_bit_writer_init (&bs_buf_period, 128 * 8);
gst_bit_writer_init (&bs_pic_timing, 128 * 8);
gst_bit_writer_init (&bs, 128 * 8);
need_buf_period = GST_VAAPI_H264_SEI_BUF_PERIOD & payloadtype;
need_pic_timing = GST_VAAPI_H264_SEI_PIC_TIMING & payloadtype;
if (need_buf_period) {
/* Write a Buffering Period SEI message */
bs_write_sei_buf_period (&bs_buf_period, encoder, picture);
/* Write byte alignment bits */
if (GST_BIT_WRITER_BIT_SIZE (&bs_buf_period) % 8 != 0)
bs_write_trailing_bits (&bs_buf_period);
buf_period_payload_size = (GST_BIT_WRITER_BIT_SIZE (&bs_buf_period)) / 8;
buf_period_payload = GST_BIT_WRITER_DATA (&bs_buf_period);
}
if (need_pic_timing) {
/* Write a Picture Timing SEI message */
if (GST_VAAPI_H264_SEI_PIC_TIMING & payloadtype)
bs_write_sei_pic_timing (&bs_pic_timing, encoder, picture);
/* Write byte alignment bits */
if (GST_BIT_WRITER_BIT_SIZE (&bs_pic_timing) % 8 != 0)
bs_write_trailing_bits (&bs_pic_timing);
pic_timing_payload_size = (GST_BIT_WRITER_BIT_SIZE (&bs_pic_timing)) / 8;
pic_timing_payload = GST_BIT_WRITER_DATA (&bs_pic_timing);
}
/* Write the SEI message */
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_NONE, GST_H264_NAL_SEI);
if (need_buf_period) {
WRITE_UINT32 (&bs, GST_H264_SEI_BUF_PERIOD, 8);
WRITE_UINT32 (&bs, buf_period_payload_size, 8);
/* Add buffering period sei message */
gst_bit_writer_put_bytes (&bs, buf_period_payload, buf_period_payload_size);
}
if (need_pic_timing) {
WRITE_UINT32 (&bs, GST_H264_SEI_PIC_TIMING, 8);
WRITE_UINT32 (&bs, pic_timing_payload_size, 8);
/* Add picture timing sei message */
gst_bit_writer_put_bytes (&bs, pic_timing_payload, pic_timing_payload_size);
}
/* rbsp_trailing_bits */
bs_write_trailing_bits (&bs);
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_sei_param.type = VAEncPackedHeaderH264_SEI;
packed_sei_param.bit_length = data_bit_size;
packed_sei_param.has_emulation_bytes = 0;
packed_sei = gst_vaapi_enc_packed_header_new (GST_VAAPI_ENCODER (encoder),
&packed_sei_param, sizeof (packed_sei_param),
data, (data_bit_size + 7) / 8);
g_assert (packed_sei);
gst_vaapi_enc_picture_add_packed_header (picture, packed_sei);
gst_vaapi_codec_object_replace (&packed_sei, NULL);
gst_bit_writer_clear (&bs_buf_period, TRUE);
gst_bit_writer_clear (&bs_pic_timing, TRUE);
gst_bit_writer_clear (&bs, TRUE);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SEI NAL unit");
gst_bit_writer_clear (&bs_buf_period, TRUE);
gst_bit_writer_clear (&bs_pic_timing, TRUE);
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_ids[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->intra_idr_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder);
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->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 = 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;
/* 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 ? 1 : 0;
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 ((gint8) 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) &
VA_ENC_PACKED_HEADER_SEQUENCE)
&& !add_packed_sequence_header_mvc (encoder, picture, sequence))
goto error_create_packed_seq_hdr;
} else {
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_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);
}
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);
if (!encoder->view_idx) {
if ((GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) &&
(GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_MISC) &&
!add_packed_sei_header (encoder, picture,
GST_VAAPI_H264_SEI_BUF_PERIOD | GST_VAAPI_H264_SEI_PIC_TIMING))
goto error_create_packed_sei_hdr;
else if (!GST_VAAPI_ENC_PICTURE_IS_IDR (picture) &&
(GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_MISC) &&
!add_packed_sei_header (encoder, picture,
GST_VAAPI_H264_SEI_PIC_TIMING))
goto error_create_packed_sei_hdr;
}
}
return TRUE;
error_create_packed_sei_hdr:
{
GST_ERROR ("failed to create packed SEI header");
return FALSE;
}
}
/* 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) &
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 (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;
if (!ensure_tuning (encoder))
GST_WARNING ("Failed to set some of the tuning option as expected! ");
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;
/* Workaround : vaapi-intel-driver doesn't have support for
* B-frame encode when utilizing low-power encode hardware block.
* So Disabling b-frame encoding in low-pwer encode.
*
* Fixme :We should query the VAConfigAttribEncMaxRefFrames
* instead of blindly disabling b-frame support and set b/p frame count,
* buffer pool size etc based on that.*/
if ((encoder->num_bframes > 0)
&& (encoder->entrypoint == GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP)) {
GST_WARNING
("Disabling b-frame since the driver doesn't supporting it in low-power encode");
encoder->num_bframes = 0;
}
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;
for (i = 0; i < encoder->num_views; i++) {
GstVaapiH264ViewRefPool *const ref_pool = &encoder->ref_pools[i];
GstVaapiH264ViewReorderPool *const reorder_pool =
&encoder->reorder_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;
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) {
/* FIXME: Use first-in-bundle flag on buffers to reset view idx? */
if (frame)
encoder->view_idx = frame->system_frame_number % encoder->num_views;
else
encoder->view_idx = (encoder->view_idx + 1) % encoder->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);
base_encoder->context_info.entrypoint = encoder->entrypoint;
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);
GstVideoInfo *const vip = GST_VAAPI_ENCODER_VIDEO_INFO (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;
}
/* Take number of MVC views from input caps if provided */
if (GST_VIDEO_INFO_MULTIVIEW_MODE (vip) ==
GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME
|| GST_VIDEO_INFO_MULTIVIEW_MODE (vip) ==
GST_VIDEO_MULTIVIEW_MODE_MULTIVIEW_FRAME_BY_FRAME)
encoder->num_views = GST_VIDEO_INFO_VIEWS (vip);
encoder->is_mvc = encoder->num_views > 1;
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;
/* Default encoding entrypoint */
encoder->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
/* Multi-view coding information */
encoder->is_mvc = FALSE;
encoder->num_views = 1;
encoder->view_idx = 0;
memset (encoder->view_ids, 0, sizeof (encoder->view_ids));
/* 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;
case GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS:{
guint i;
GValueArray *view_ids = g_value_get_boxed (value);
if (view_ids == NULL) {
for (i = 0; i < encoder->num_views; i++)
encoder->view_ids[i] = i;
} else {
g_assert (view_ids->n_values <= encoder->num_views);
for (i = 0; i < encoder->num_views; i++) {
GValue *val = g_value_array_get_nth (view_ids, i);
encoder->view_ids[i] = g_value_get_uint (val);
}
}
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));
/**
* GstVaapiEncoderH264:view-ids:
*
* The view ids for MVC encoding .
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS,
g_param_spec_value_array ("view-ids",
"View IDs", "Set of View Ids used for MVC encoding",
g_param_spec_uint ("view-id-value", "View id value",
"view id values used for mvc encoding", 0, MAX_VIEW_ID, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
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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