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gstreamer/gst-libs/gst/vaapi/gstvaapiencoder_h264.c
Víctor Manuel Jáquez Leal 3df5bfc06d libs: encoder: h264: document gst_vaapi_encoder_h264_supports_avc()
2020-01-19 14:57:38 +01:00

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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
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#include "sysdeps.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 "gstvaapiutils_h26x_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 default temporal levels */
#define MIN_TEMPORAL_LEVELS 1
#define MAX_TEMPORAL_LEVELS 4
/* 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) | \
GST_VAAPI_RATECONTROL_MASK (ICQ) | \
GST_VAAPI_RATECONTROL_MASK (QVBR))
/* 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
typedef enum
{
GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_STRICT = 0,
GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_RESTRICT_CODED_BUFFER_ALLOC = 1,
} GstVaapiEncoderH264ComplianceMode;
static GType
gst_vaapi_encoder_h264_compliance_mode_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_STRICT,
"Strict compliance to the H264 Specification ",
"strict"},
/* The main intention is to reduce the CodedBuffer Size allocation.
* This will help to get better performance in some of the Intel
* platforms which has LLC restirictions */
{GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_RESTRICT_CODED_BUFFER_ALLOC,
"Restrict the allocation size of coded-buffer",
"restrict-buf-alloc"},
{0, NULL, NULL},
};
gtype =
g_enum_register_static ("GstVaapiEncoderH264ComplianceMode", values);
}
return gtype;
}
typedef enum
{
GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT,
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_P,
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B
} GstVaapiEncoderH264PredictionType;
static GType
gst_vaapi_encoder_h264_prediction_type (void)
{
static GType gtype = 0;
if (gtype == 0) {
static const GEnumValue values[] = {
{GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT,
"Default encode, prev/next frame as ref ",
"default"},
{GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_P,
"Hierarchical P frame encode",
"hierarchical-p"},
{GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B,
"Hierarchical B frame encode",
"hierarchical-b"},
{0, NULL, NULL},
};
gtype =
g_enum_register_static ("GstVaapiEncoderH264PredictionType", values);
}
return gtype;
}
/* 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;
guint temporal_id;
} 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;
gboolean prev_frame_is_ref; /* previous frame is ref or not */
} 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;
}
/* 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,
GstVaapiRateControl rate_control, 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 cbr_flag = rate_control == GST_VAAPI_RATECONTROL_CBR ? 1 : 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, cbr_flag, 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,
GstVaapiRateControl rate_control, const VAEncMiscParameterHRD * hrd_params)
{
if (!bs_write_sps_data (bs, seq_param, profile, rate_control, 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,
GstVaapiRateControl rate_control, guint num_views, guint16 * view_ids,
const VAEncMiscParameterHRD * hrd_params)
{
guint32 i, j, k;
if (!bs_write_sps_data (bs, seq_param, profile, rate_control, 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
|| profile == GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH
|| profile == GST_VAAPI_PROFILE_H264_STEREO_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 --- */
/* ------------------------------------------------------------------------- */
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 ip_period;
guint32 init_qp;
guint32 min_qp;
guint32 max_qp;
guint32 qp_i;
guint32 qp_ip;
guint32 qp_ib;
guint32 num_slices;
guint32 num_bframes;
guint32 mb_width;
guint32 mb_height;
guint32 quality_factor;
gboolean use_cabac;
gboolean use_dct8x8;
guint temporal_levels; /* Number of temporal levels */
guint temporal_level_div[MAX_TEMPORAL_LEVELS]; /* to find the temporal id */
guint prediction_type;
guint abs_diff_pic_num_list0;
guint abs_diff_pic_num_list1;
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;
guint num_ref_frames;
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)
GstVaapiEncoderMbbrc mbbrc; // macroblock bitrate control
/* 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];
gboolean use_aud;
/* Complance mode */
GstVaapiEncoderH264ComplianceMode compliance_mode;
guint min_cr; // Minimum Compression Ratio (A.3.1)
};
/* 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);
}
}
if ((slice_param->slice_type != 2) && (slice_param->slice_type != 4)) {
if ((encoder->prediction_type != GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT)
&& (encoder->abs_diff_pic_num_list0 > 1))
ref_pic_list_modification_flag_l0 = 1;
WRITE_UINT32 (bs, ref_pic_list_modification_flag_l0, 1);
if (ref_pic_list_modification_flag_l0) {
/*modification_of_pic_num_idc */
WRITE_UE (bs, 0);
/* abs_diff_pic_num_minus1 */
WRITE_UE (bs, encoder->abs_diff_pic_num_list0 - 1);
/*modification_of_pic_num_idc */
WRITE_UE (bs, 3);
}
}
/* B-frame */
if (slice_param->slice_type == 1) {
if ((encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B)
&& (encoder->abs_diff_pic_num_list1 > 1))
ref_pic_list_modification_flag_l1 = 1;
WRITE_UINT32 (bs, ref_pic_list_modification_flag_l1, 1);
if (ref_pic_list_modification_flag_l1) {
/*modification_of_pic_num_idc */
WRITE_UE (bs, 0);
/* abs_diff_pic_num_minus1 */
WRITE_UE (bs, encoder->abs_diff_pic_num_list1 - 1);
/*modification_of_pic_num_idc */
WRITE_UE (bs, 3);
}
}
/* 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 (GST_VAAPI_ENC_PICTURE_IS_REFRENCE (picture)) {
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 %s",
gst_vaapi_profile_get_va_name (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;
/* Give an error if the given parameters are invalid for requested
* profile rather than lowering profile.
*/
if (encoder->profile_idc > encoder->max_profile_idc) {
GST_WARNING ("Invalid parameter for maximum profile");
return FALSE;
}
profile = GST_VAAPI_PROFILE_UNKNOWN;
if (encoder->profile_idc < encoder->max_profile_idc) {
/* Let profile be higher to fit in the maximum profile
* without changing parameters */
if (encoder->max_profile_idc > GST_H264_PROFILE_BASELINE)
profile = GST_VAAPI_PROFILE_H264_MAIN;
if (encoder->max_profile_idc > GST_H264_PROFILE_MAIN)
profile = GST_VAAPI_PROFILE_H264_HIGH;
if (encoder->max_profile_idc > GST_H264_PROFILE_HIGH) {
if (encoder->num_views > 2)
profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH;
else if (encoder->num_views == 2)
profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH;
}
}
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;
encoder->min_cr = limits_table[i].MinCR;
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 >= GST_H264_PROFILE_MAIN
&& profile_idc != GST_H264_PROFILE_EXTENDED) {
encoder->use_cabac = TRUE;
if (!encoder->num_bframes)
encoder->num_bframes = 1;
}
/* Tuning options to enable High profile */
if (profile_idc >= GST_H264_PROFILE_HIGH) {
encoder->use_dct8x8 = TRUE;
}
return TRUE;
}
/* Ensure tuning options */
static gboolean
ensure_tuning (GstVaapiEncoderH264 * encoder)
{
gboolean success;
switch (GST_VAAPI_ENCODER_TUNE (encoder)) {
case GST_VAAPI_ENCODER_TUNE_HIGH_COMPRESSION:
success = ensure_tuning_high_compression (encoder);
break;
default:
success = TRUE;
break;
}
return success;
}
static gboolean
is_temporal_id_max (GstVaapiEncoderH264 * encoder, guint32 temporal_id)
{
g_assert (temporal_id < encoder->temporal_levels);
return temporal_id == encoder->temporal_levels - 1;
}
/* 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_present_index = 0;
++encoder->idr_num;
}
/* Marks the supplied picture as a B-frame */
static void
set_b_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
g_assert (pic && encoder);
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_B;
if (encoder->temporal_levels > 1) {
/* while doing temporal encoding, b frames are allowded
* only in hierarchical-b mode */
g_assert (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B);
/* temporal_encode: set b-frame as reference frames in
* hierarchical-b encode unless they belongs to highest level */
if (!is_temporal_id_max (encoder, pic->temporal_id))
GST_VAAPI_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
}
}
/* Marks the supplied picture as a P-frame */
static void
set_p_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_P;
if (encoder->temporal_levels == 1) {
/* Default prediction mode */
GST_VAAPI_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
} else {
/* temporal_encode: all frames in highest level are not reference frames
* for hierarhical-p and hierarchical-b prediction mode */
if (!is_temporal_id_max (encoder, pic->temporal_id))
GST_VAAPI_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
}
}
/* Marks the supplied picture as an I-frame */
static void
set_i_frame (GstVaapiEncPicture * pic, GstVaapiEncoderH264 * encoder)
{
g_return_if_fail (pic->type == GST_VAAPI_PICTURE_TYPE_NONE);
pic->type = GST_VAAPI_PICTURE_TYPE_I;
GST_VAAPI_PICTURE_FLAG_SET (pic, GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
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->poc = 0;
GST_VAAPI_ENC_PICTURE_FLAG_SET (pic,
GST_VAAPI_ENC_PICTURE_FLAG_IDR | GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
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);
}
static void
set_frame_num (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiH264ViewReorderPool *reorder_pool = NULL;
reorder_pool = &encoder->reorder_pools[encoder->view_idx];
picture->frame_num = (reorder_pool->cur_frame_num % encoder->max_frame_num);
if (GST_VAAPI_ENC_PICTURE_IS_IDR (picture)) {
picture->frame_num = 0;
reorder_pool->cur_frame_num = 0;
}
reorder_pool->prev_frame_is_ref = GST_VAAPI_ENC_PICTURE_IS_REFRENCE (picture);
if (reorder_pool->prev_frame_is_ref)
++reorder_pool->cur_frame_num;
}
/* 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;
}
}
static gboolean
add_packed_au_delimiter (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture)
{
GstVaapiEncPackedHeader *packed_aud;
GstBitWriter bs;
VAEncPackedHeaderParameterBuffer packed_header_param_buffer = { 0 };
guint32 data_bit_size;
guint8 *data;
gst_bit_writer_init_with_size (&bs, 128, FALSE);
WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */
bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_NONE,
GST_H264_NAL_AU_DELIMITER);
WRITE_UINT32 (&bs, picture->type - 1, 3);
if (!bs_write_trailing_bits (&bs))
goto bs_error;
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 = VAEncPackedHeaderRawData;
packed_header_param_buffer.bit_length = data_bit_size;
packed_header_param_buffer.has_emulation_bytes = 0;
packed_aud = 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_aud);
gst_vaapi_enc_picture_add_packed_header (picture, packed_aud);
gst_vaapi_codec_object_replace (&packed_aud, NULL);
gst_bit_writer_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write AU Delimiter NAL unit");
gst_bit_writer_reset (&bs);
return FALSE;
}
}
/* Adds the supplied sequence header (SPS) to the list of packed
headers to pass down as-is to the encoder */
static gboolean
add_packed_sequence_header (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
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_with_size (&bs, 128, FALSE);
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, base_encoder->rate_control,
&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_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SPS NAL unit");
gst_bit_writer_reset (&bs);
return FALSE;
}
}
static gboolean
add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GstVaapiEncSequence * sequence)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
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_with_size (&bs, 128, FALSE);
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,
base_encoder->rate_control, 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_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SPS NAL unit");
gst_bit_writer_reset (&bs);
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_with_size (&bs, 128, FALSE);
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_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write PPS NAL unit");
gst_bit_writer_reset (&bs);
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_with_size (&bs_buf_period, 128, FALSE);
gst_bit_writer_init_with_size (&bs_pic_timing, 128, FALSE);
gst_bit_writer_init_with_size (&bs, 128, FALSE);
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 = VA_ENC_PACKED_HEADER_H264_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_reset (&bs_buf_period);
gst_bit_writer_reset (&bs_pic_timing);
gst_bit_writer_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write SEI NAL unit");
gst_bit_writer_reset (&bs_buf_period);
gst_bit_writer_reset (&bs_pic_timing);
gst_bit_writer_reset (&bs);
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:
if (!GST_VAAPI_ENC_PICTURE_IS_REFRENCE (picture))
*nal_ref_idc = GST_H264_NAL_REF_IDC_NONE;
else
*nal_ref_idc = GST_H264_NAL_REF_IDC_MEDIUM;
*nal_unit_type = GST_H264_NAL_SLICE;
break;
case GST_VAAPI_PICTURE_TYPE_B:
if (!GST_VAAPI_ENC_PICTURE_IS_REFRENCE (picture))
*nal_ref_idc = GST_H264_NAL_REF_IDC_NONE;
else
*nal_ref_idc = GST_H264_NAL_REF_IDC_LOW;
*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_with_size (&bs, 128, FALSE);
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_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Prefix NAL unit header");
gst_bit_writer_reset (&bs);
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_with_size (&bs, 128, FALSE);
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_reset (&bs);
return TRUE;
/* ERRORS */
bs_error:
{
GST_WARNING ("failed to write Slice NAL unit header");
gst_bit_writer_reset (&bs);
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;
ref->temporal_id = picture->temporal_id;
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 (encoder->prediction_type == GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT
&& 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;
}
/* update reflist0 for hierarchical-p and hierarchical-b encode */
static void
reflist0_init_hierarchical (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GQueue * ref_list,
GstVaapiEncoderH264Ref ** reflist_0, guint * reflist_0_count)
{
GstVaapiEncoderH264Ref *tmp = NULL;
GList *iter;
guint count = 0, i;
iter = g_queue_peek_tail_link (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)
&& ((picture->temporal_id && (tmp->temporal_id < picture->temporal_id))
|| (!picture->temporal_id
&& (tmp->temporal_id == picture->temporal_id)))) {
reflist_0[count++] = tmp;
}
}
g_assert (count != 0);
/* Only need one ref frame */
tmp = reflist_0[0];
for (i = 1; i < count; i++) {
if (tmp->poc < reflist_0[i]->poc)
tmp = reflist_0[i];
}
reflist_0[0] = tmp;
*reflist_0_count = 1;
encoder->abs_diff_pic_num_list0 = picture->frame_num - tmp->frame_num;
}
/* update reflist1 for hierarchical-b encode */
static void
reflist1_init_hierarchical_b (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture, GQueue * ref_list,
GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count)
{
GstVaapiEncoderH264Ref *tmp = NULL;
GList *iter;
guint count = 0, i;
/* base layer should have only P frames */
g_assert (picture->temporal_id != 0);
iter = g_queue_peek_tail_link (ref_list);
for (; iter; iter = g_list_previous (iter)) {
tmp = (GstVaapiEncoderH264Ref *) iter->data;
g_assert (tmp && tmp->poc != picture->poc);
if (_poc_greater_than (tmp->poc, picture->poc, encoder->max_pic_order_cnt)
&& (tmp->temporal_id < picture->temporal_id)) {
reflist_1[count++] = tmp;
}
}
g_assert (count != 0);
/* Only need one ref frame */
tmp = reflist_1[0];
for (i = 1; i < count; i++) {
if (tmp->poc > reflist_1[i]->poc)
tmp = reflist_1[i];
}
reflist_1[0] = tmp;
*reflist_1_count = 1;
encoder->abs_diff_pic_num_list1 = picture->frame_num - tmp->frame_num;
}
static gboolean
reference_list_init_hierarchical (GstVaapiEncoderH264 * encoder,
GstVaapiEncPicture * picture,
GQueue * ref_list,
GstVaapiEncoderH264Ref ** reflist_0,
guint * reflist_0_count,
GstVaapiEncoderH264Ref ** reflist_1, guint * reflist_1_count)
{
/* reflist_0 ordering is same for hierarchical-P and hierarchical-B */
reflist0_init_hierarchical (encoder, picture, ref_list, reflist_0,
reflist_0_count);
if (picture->type != GST_VAAPI_PICTURE_TYPE_B)
return TRUE;
g_assert (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B);
reflist1_init_hierarchical_b (encoder, picture, ref_list,
reflist_1, reflist_1_count);
/* FIXME: Combine and optimize reflist_0_init and reflist_1_init.
* Keeping separate blocks for now to make it more
* readable and easy to debug */
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;
/* reference picture handling for hierarchial encode */
if (encoder->prediction_type != GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT) {
return reference_list_init_hierarchical (encoder, picture,
&ref_pool->ref_list, reflist_0, reflist_0_count, reflist_1,
reflist_1_count);
}
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 = encoder->ip_period;
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);
pic_param->ReferenceFrames[i].TopFieldOrderCnt = ref_pic->poc;
pic_param->ReferenceFrames[i].flags |=
VA_PICTURE_H264_SHORT_TERM_REFERENCE;
pic_param->ReferenceFrames[i].frame_idx = ref_pic->frame_num;
++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_CODED_BUFFER_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->qp_i;
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 =
GST_VAAPI_ENC_PICTURE_IS_REFRENCE (picture);
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 = reflist_0_count
|| reflist_1_count;
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;
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);
slice_param->RefPicList0[i_ref].TopFieldOrderCnt =
reflist_0[i_ref]->poc;
slice_param->RefPicList0[i_ref].flags |=
VA_PICTURE_H264_SHORT_TERM_REFERENCE;
slice_param->RefPicList0[i_ref].frame_idx = reflist_0[i_ref]->frame_num;
}
}
for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList0); ++i_ref) {
slice_param->RefPicList0[i_ref].picture_id = VA_INVALID_SURFACE;
slice_param->RefPicList0[i_ref].flags = VA_PICTURE_H264_INVALID;
}
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);
slice_param->RefPicList1[i_ref].TopFieldOrderCnt =
reflist_1[i_ref]->poc;
slice_param->RefPicList1[i_ref].flags |=
VA_PICTURE_H264_SHORT_TERM_REFERENCE;
slice_param->RefPicList1[i_ref].frame_idx |=
reflist_1[i_ref]->frame_num;
}
}
for (; i_ref < G_N_ELEMENTS (slice_param->RefPicList1); ++i_ref) {
slice_param->RefPicList1[i_ref].picture_id = VA_INVALID_SURFACE;
slice_param->RefPicList1[i_ref].flags = VA_PICTURE_H264_INVALID;
}
/* 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->qp_i - encoder->init_qp;
if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP) {
if (picture->type == GST_VAAPI_PICTURE_TYPE_P) {
slice_param->slice_qp_delta += encoder->qp_ip;
} else if (picture->type == GST_VAAPI_PICTURE_TYPE_B) {
slice_param->slice_qp_delta += encoder->qp_ib;
}
if ((gint) encoder->init_qp + slice_param->slice_qp_delta <
(gint) encoder->min_qp) {
slice_param->slice_qp_delta = encoder->min_qp - encoder->init_qp;
}
if ((gint) encoder->init_qp + slice_param->slice_qp_delta >
(gint) encoder->max_qp) {
slice_param->slice_qp_delta = encoder->max_qp - encoder->init_qp;
}
}
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;
/* Insert an AU delimiter */
if ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
VA_ENC_PACKED_HEADER_RAW_DATA) && encoder->use_aud) {
if (!add_packed_au_delimiter (encoder, picture))
goto error_create_packed_au_delimiter;
}
/* submit an SPS header before every new I-frame, if codec config changed
* or if the picture is IDR.
*/
if ((!encoder->config_changed || picture->type != GST_VAAPI_PICTURE_TYPE_I)
&& !GST_VAAPI_ENC_PICTURE_IS_IDR (picture))
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_au_delimiter:
{
GST_ERROR ("failed to create AU delimiter");
gst_vaapi_codec_object_replace (&sequence, NULL);
}
error_create_packed_seq_hdr:
{
GST_ERROR ("failed to create packed sequence header buffer");
gst_vaapi_codec_object_replace (&sequence, NULL);
return FALSE;
}
}
static gboolean
ensure_control_rate_params (GstVaapiEncoderH264 * encoder)
{
if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CQP)
return TRUE;
#if VA_CHECK_VERSION(1,1,0)
if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_ICQ) {
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).ICQ_quality_factor =
encoder->quality_factor;
return TRUE;
}
#endif
/* RateControl params */
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).bits_per_second =
encoder->bitrate_bits;
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).window_size = encoder->cpb_length;
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).initial_qp = encoder->init_qp;
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).min_qp = encoder->min_qp;
#if VA_CHECK_VERSION(1,1,0)
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).max_qp = encoder->max_qp;
#endif
#if VA_CHECK_VERSION(1,0,0)
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).rc_flags.bits.mb_rate_control =
(guint) encoder->mbbrc;
#endif
#if VA_CHECK_VERSION(1,3,0)
GST_VAAPI_ENCODER_VA_RATE_CONTROL (encoder).quality_factor =
encoder->quality_factor;
#endif
/* HRD params */
fill_hrd_params (encoder, &GST_VAAPI_ENCODER_VA_HRD (encoder));
return TRUE;
}
/* Generates additional control parameters */
static gboolean
ensure_misc_params (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture)
{
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER_CAST (encoder);
if (!gst_vaapi_encoder_ensure_param_control_rate (base_encoder, picture))
return FALSE;
if (GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_CBR ||
GST_VAAPI_ENCODER_RATE_CONTROL (encoder) == GST_VAAPI_RATECONTROL_VBR) {
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;
}
}
if (!gst_vaapi_encoder_ensure_param_trellis (base_encoder, picture))
return FALSE;
if (!gst_vaapi_encoder_ensure_param_roi_regions (base_encoder, picture))
return FALSE;
if (!gst_vaapi_encoder_ensure_param_quality_level (base_encoder, picture))
return FALSE;
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:
case GST_VAAPI_RATECONTROL_QVBR:
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;
guint64 factor;
if (!encoder->use_cabac)
bits_per_mb += (bits_per_mb * 15) / 100;
if (!encoder->use_dct8x8)
bits_per_mb += (bits_per_mb * 10) / 100;
factor = (guint64) encoder->mb_width * encoder->mb_height * bits_per_mb;
base_encoder->bitrate =
gst_util_uint64_scale (factor, 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;
/* If set low-power encode entry point and hardware doesn't have
* support, it will fail in ensure_hw_profile() in later stage. */
encoder->entrypoint =
gst_vaapi_encoder_get_entrypoint (GST_VAAPI_ENCODER_CAST (encoder),
encoder->profile);
if (encoder->entrypoint == GST_VAAPI_ENTRYPOINT_INVALID) {
GST_WARNING ("Cannot find valid entrypoint");
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;
gboolean ret;
if (encoder->idr_period < base_encoder->keyframe_period)
encoder->idr_period = base_encoder->keyframe_period;
g_assert (encoder->min_qp <= encoder->max_qp);
if (encoder->min_qp > encoder->init_qp)
encoder->min_qp = encoder->init_qp;
if (encoder->max_qp < encoder->init_qp)
encoder->max_qp = encoder->init_qp;
encoder->qp_i = encoder->init_qp;
mb_size = encoder->mb_width * encoder->mb_height;
ret = gst_vaapi_encoder_ensure_num_slices (base_encoder, encoder->profile,
encoder->entrypoint, (mb_size + 1) / 2, &encoder->num_slices);
g_assert (ret);
if (encoder->num_bframes > (base_encoder->keyframe_period + 1) / 2)
encoder->num_bframes = (base_encoder->keyframe_period + 1) / 2;
gst_vaapi_encoder_ensure_max_num_ref_frames (base_encoder, encoder->profile,
encoder->entrypoint);
if (base_encoder->max_num_ref_frames_1 < 1 && encoder->num_bframes > 0) {
GST_WARNING ("Disabling b-frame since the driver doesn't support it");
encoder->num_bframes = 0;
if (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B)
encoder->prediction_type = GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT;
}
if (encoder->num_ref_frames > base_encoder->max_num_ref_frames_0) {
GST_INFO ("Lowering the number of reference frames to %d",
base_encoder->max_num_ref_frames_0);
encoder->num_ref_frames = base_encoder->max_num_ref_frames_0;
}
if (encoder->num_bframes > 0 && GST_VAAPI_ENCODER_FPS_N (encoder) > 0)
encoder->cts_offset = gst_util_uint64_scale (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;
/* If temporal scalability enabled then use hierarchical-p/b
* according to num_bframes as default prediction */
if (encoder->temporal_levels > 1
&& encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT) {
if (encoder->num_bframes > 0)
encoder->prediction_type =
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B;
else
encoder->prediction_type =
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_P;
}
if (encoder->prediction_type != GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT) {
/* Hierarchical prediction should have a temporal level count
* greater than one and we use 4 temporal levels as default */
if (encoder->temporal_levels <= 1)
encoder->temporal_levels = 4;
/* this ip_period calculation is for supporting hierarchical-p
* and hierarchical-b encode */
encoder->ip_period = 1 << (encoder->temporal_levels - 1);
/* align the idr_period to ip_peroid to simplify encode process */
encoder->idr_period =
GST_ROUND_UP_N (encoder->idr_period, encoder->ip_period);
GST_VAAPI_ENCODER_KEYFRAME_PERIOD (base_encoder) = encoder->idr_period;
/* Disable mvc-encode in hierarchical mode */
if (encoder->num_views > 1) {
encoder->num_views = 1;
encoder->is_mvc = FALSE;
}
/* no b-frames in Hierarchical-P */
if (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_P)
encoder->num_bframes = 0;
/* reset number of b-frames in Hierarchical-B */
if (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B)
encoder->num_bframes = (1 << (encoder->temporal_levels - 1)) - 1;
} else {
encoder->ip_period = GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder) > 1 ?
(1 + encoder->num_bframes) : 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];
if (encoder->prediction_type == GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT) {
ref_pool->max_reflist0_count = encoder->num_ref_frames;
ref_pool->max_reflist1_count = encoder->num_bframes > 0;
ref_pool->max_ref_frames = ref_pool->max_reflist0_count
+ ref_pool->max_reflist1_count;
} else {
guint d;
/* This shouldn't be executed on MVC encoding */
g_assert (i < 1);
ref_pool->max_ref_frames =
encoder->temporal_levels * (encoder->temporal_levels) / 2 +
(encoder->num_bframes > 0);
ref_pool->max_reflist0_count = 1;
ref_pool->max_reflist1_count = encoder->num_bframes > 0;
encoder->num_ref_frames = ref_pool->max_ref_frames;
d = encoder->ip_period;
/* temporal_level_div[] is helpful to find out the temporal level
* where each frame should belongs */
for (i = 0; i < encoder->temporal_levels; i++) {
encoder->temporal_level_div[i] = d;
d >>= 1;
}
}
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 (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;
/* ERRORS */
error:
{
if (reconstruct)
gst_vaapi_encoder_release_surface (GST_VAAPI_ENCODER (encoder),
reconstruct);
return ret;
}
}
struct _PendingIterState
{
guint cur_view;
GstVaapiPictureType pic_type;
};
static gboolean
gst_vaapi_encoder_h264_get_pending_reordered (GstVaapiEncoder * base_encoder,
GstVaapiEncPicture ** picture, gpointer * state)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (base_encoder);
GstVaapiH264ViewReorderPool *reorder_pool;
GstVaapiEncPicture *pic;
struct _PendingIterState *iter;
g_return_val_if_fail (state, FALSE);
if (!*state) {
iter = g_new0 (struct _PendingIterState, 1);
iter->pic_type = GST_VAAPI_PICTURE_TYPE_P;
*state = iter;
} else {
iter = *state;
}
*picture = NULL;
if (iter->cur_view >= encoder->num_views)
return FALSE;
reorder_pool = &encoder->reorder_pools[iter->cur_view];
if (g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
iter->cur_view++;
return TRUE; /* perhaps other views has pictures? */
}
pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list);
g_assert (pic);
if (iter->pic_type == GST_VAAPI_PICTURE_TYPE_P) {
set_p_frame (pic, encoder);
iter->pic_type = GST_VAAPI_PICTURE_TYPE_B;
} else if (iter->pic_type == GST_VAAPI_PICTURE_TYPE_B) {
set_b_frame (pic, encoder);
} else {
GST_WARNING ("Unhandled pending picture type");
}
set_frame_num (encoder, pic);
if (GST_CLOCK_TIME_IS_VALID (pic->frame->pts))
pic->frame->pts += encoder->cts_offset;
*picture = pic;
return TRUE;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h264_flush (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (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;
reorder_pool->prev_frame_is_ref = FALSE;
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 (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_with_size (&bs, (sps_info.size + pps_info.size + 64),
FALSE);
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 Nal unit length and data of SPS */
if (!gst_vaapi_utils_h26x_write_nal_unit (&bs, sps_info.data, sps_info.size))
goto nal_to_byte_stream_error;
/* Write PPS */
WRITE_UINT32 (&bs, 1, 8); /* PPS count = 1 */
/* Write Nal unit length and data of PPS */
if (!gst_vaapi_utils_h26x_write_nal_unit (&bs, pps_info.data, pps_info.size))
goto nal_to_byte_stream_error;
gst_buffer_unmap (encoder->pps_data, &pps_info);
gst_buffer_unmap (encoder->sps_data, &sps_info);
buffer = gst_bit_writer_reset_and_get_buffer (&bs);
if (!buffer)
goto error_alloc_buffer;
if (gst_buffer_n_memory (buffer) == 0) {
gst_buffer_unref (buffer);
goto error_alloc_buffer;
}
*out_buffer_ptr = buffer;
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_reset (&bs);
return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
}
nal_to_byte_stream_error:
{
GST_ERROR ("failed to write nal unit");
gst_buffer_unmap (encoder->sps_data, &sps_info);
gst_buffer_unmap (encoder->pps_data, &pps_info);
gst_bit_writer_reset (&bs);
return GST_VAAPI_ENCODER_STATUS_ERROR_OPERATION_FAILED;
}
error_map_sps_buffer:
{
GST_ERROR ("failed to map SPS packed header");
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
error_map_pps_buffer:
{
GST_ERROR ("failed to map PPS packed header");
gst_buffer_unmap (encoder->sps_data, &sps_info);
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
error_alloc_buffer:
{
GST_ERROR ("failed to allocate codec-data buffer");
gst_bit_writer_reset (&bs);
return GST_VAAPI_ENCODER_STATUS_ERROR_ALLOCATION_FAILED;
}
}
static guint32
get_temporal_id (GstVaapiEncoderH264 * encoder, guint32 display_order)
{
int l;
for (l = 0; l < encoder->temporal_levels; l++) {
if ((display_order % encoder->temporal_level_div[l]) == 0)
return l;
}
GST_WARNING ("Couldn't find valid temporal id");
return 0;
}
/* reorder_list sorting for hierarchical-b encode */
static gint
sort_hierarchical_b (gconstpointer a, gconstpointer b, gpointer user_data)
{
GstVaapiEncPicture *pic1 = (GstVaapiEncPicture *) a;
GstVaapiEncPicture *pic2 = (GstVaapiEncPicture *) b;
if (pic1->type != GST_VAAPI_PICTURE_TYPE_B)
return 1;
if (pic2->type != GST_VAAPI_PICTURE_TYPE_B)
return -1;
if (pic1->temporal_id == pic2->temporal_id)
return pic1->poc - pic2->poc;
else
return pic1->temporal_id - pic2->temporal_id;
}
static GstVaapiEncoderStatus
gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder,
GstVideoCodecFrame * frame, GstVaapiEncPicture ** output)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (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);
/* sort the queued list of frames for hierarchical-b based on
* temporal level where each frame belongs */
if (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B)
g_queue_sort (&reorder_pool->reorder_frame_list, sort_hierarchical_b,
NULL);
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);
picture->temporal_id = (encoder->temporal_levels == 1) ? 1 :
get_temporal_id (encoder, reorder_pool->frame_index);
is_idr = (reorder_pool->frame_index == 0 ||
reorder_pool->frame_index >= encoder->idr_period);
/* check key frames */
if (is_idr || GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame) ||
(reorder_pool->frame_index %
GST_VAAPI_ENCODER_KEYFRAME_PERIOD (encoder)) == 0) {
++reorder_pool->frame_index;
/* b frame enabled, check queue of reorder_frame_list */
if (encoder->num_bframes
&& !g_queue_is_empty (&reorder_pool->reorder_frame_list)) {
GstVaapiEncPicture *p_pic;
p_pic = g_queue_pop_tail (&reorder_pool->reorder_frame_list);
set_p_frame (p_pic, encoder);
/* for hierarchical-b, if idr-period reached , make sure the
* most recent queued frame get encoded as a reference
* p-frame in base-layer */
if (encoder->prediction_type ==
GST_VAAPI_ENCODER_H264_PREDICTION_HIERARCHICAL_B) {
p_pic->temporal_id = 0;
GST_VAAPI_PICTURE_FLAG_SET (p_pic,
GST_VAAPI_ENC_PICTURE_FLAG_REFERENCE);
}
/* Fix : make sure the detached head is non-ref, currently it is ref */
g_queue_foreach (&reorder_pool->reorder_frame_list,
(GFunc) set_b_frame, encoder);
set_key_frame (picture, encoder,
is_idr | GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame));
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 | GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame));
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;
}
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;
/* set frame_num based on previous frame reference type */
set_frame_num (encoder, picture);
*output = picture;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
static GstVaapiEncoderStatus
set_context_info (GstVaapiEncoder * base_encoder)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (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_ref_frames
+ (encoder->num_bframes > 0 ? 1 : 0) + 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);
/* Some of the Intel Platforms(eg: APL) doesn't have LLC so
* the driver call cflush to ensure data consistency which is an
* expensive operation but we can still reduce the impact by
* limitting the pre-calculated coded_buffer size. This is not
* strictly following the h264 specification, but should be safe
* enough with intel-vaapi-driver. Our test cases showing significat
* performance improvement on APL platfrom with small coded-buffer size */
if (encoder->compliance_mode ==
GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_RESTRICT_CODED_BUFFER_ALLOC)
base_encoder->codedbuf_size /= encoder->min_cr;
base_encoder->context_info.profile = base_encoder->profile;
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 (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);
ensure_control_rate_params (encoder);
return set_context_info (base_encoder);
}
struct _GstVaapiEncoderH264Class
{
GstVaapiEncoderClass parent_class;
};
G_DEFINE_TYPE (GstVaapiEncoderH264, gst_vaapi_encoder_h264,
GST_TYPE_VAAPI_ENCODER);
static void
gst_vaapi_encoder_h264_init (GstVaapiEncoderH264 * 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;
encoder->temporal_levels = MIN_TEMPORAL_LEVELS;
encoder->abs_diff_pic_num_list0 = 1;
encoder->abs_diff_pic_num_list1 = 1;
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;
}
encoder->compliance_mode = GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_STRICT;
encoder->min_cr = 1;
}
static void
gst_vaapi_encoder_h264_finalize (GObject * object)
{
/*free private buffers */
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (object);
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);
}
G_OBJECT_CLASS (gst_vaapi_encoder_h264_parent_class)->finalize (object);
}
static void
set_view_ids (GstVaapiEncoderH264 * const encoder, const GValue * value)
{
guint i, j;
guint len = gst_value_array_get_size (value);
if (len == 0)
goto set_default_ids;
if (len != encoder->num_views) {
GST_WARNING ("The view number is %d, but %d view IDs are provided. Just "
"fallback to use default view IDs.", encoder->num_views, len);
goto set_default_ids;
}
for (i = 0; i < len; i++) {
const GValue *val = gst_value_array_get_value (value, i);
encoder->view_ids[i] = g_value_get_uint (val);
}
/* check whether duplicated ID */
for (i = 0; i < len; i++) {
for (j = i + 1; j < len; j++) {
if (encoder->view_ids[i] == encoder->view_ids[j]) {
GST_WARNING ("The view %d and view %d have same view ID %d. Just "
"fallback to use default view IDs.", i, j, encoder->view_ids[i]);
goto set_default_ids;
}
}
}
return;
set_default_ids:
{
for (i = 0; i < encoder->num_views; i++)
encoder->view_ids[i] = i;
}
}
static void
get_view_ids (GstVaapiEncoderH264 * const encoder, GValue * value)
{
guint i;
GValue id = G_VALUE_INIT;
g_value_reset (value);
g_value_init (&id, G_TYPE_UINT);
for (i = 0; i < encoder->num_views; i++) {
g_value_set_uint (&id, encoder->view_ids[i]);
gst_value_array_append_value (value, &id);
}
g_value_unset (&id);
}
/**
* @ENCODER_H264_PROP_RATECONTROL: Rate control (#GstVaapiRateControl).
* @ENCODER_H264_PROP_TUNE: The tuning options (#GstVaapiEncoderTune).
* @ENCODER_H264_PROP_MAX_BFRAMES: Number of B-frames between I
* and P (uint).
* @ENCODER_H264_PROP_INIT_QP: Initial quantizer value (uint).
* @ENCODER_H264_PROP_MIN_QP: Minimal quantizer value (uint).
* @ENCODER_H264_PROP_NUM_SLICES: Number of slices per frame (uint).
* @ENCODER_H264_PROP_CABAC: Enable CABAC entropy coding mode (bool).
* @ENCODER_H264_PROP_DCT8X8: Enable adaptive use of 8x8
* transforms in I-frames (bool).
* @ENCODER_H264_PROP_CPB_LENGTH: Length of the CPB buffer
* in milliseconds (uint).
* @ENCODER_H264_PROP_NUM_VIEWS: Number of views per frame.
* @ENCODER_H264_PROP_VIEW_IDS: View IDs
* @ENCODER_H264_PROP_AUD: Insert AUD as first NAL per frame.
* @ENCODER_H264_PROP_COMPLIANCE_MODE: Relax Compliance restrictions
* @ENCODER_H264_PROP_NUM_REF_FRAMES: Maximum number of reference frames.
* @ENCODER_H264_PROP_MBBRC: Macroblock level Bitrate Control.
* @ENCODER_H264_PROP_QP_IP: Difference of QP between I and P frame.
* @ENCODER_H264_PROP_QP_IB: Difference of QP between I and B frame.
* @ENCODER_H264_PROP_TEMPORAL_LEVELS: Number of temporal levels
* @ENCODER_H264_PROP_PREDICTION_TYPE: Reference picture selection modes
* @ENCODER_H264_PROP_MAX_QP: Maximal quantizer value (uint).
* @ENCODER_H264_PROP_QUALITY_FACTOR: Factor for ICQ/QVBR bitrate control mode.
*
* The set of H.264 encoder specific configurable properties.
*/
enum
{
ENCODER_H264_PROP_RATECONTROL = 1,
ENCODER_H264_PROP_TUNE,
ENCODER_H264_PROP_MAX_BFRAMES,
ENCODER_H264_PROP_INIT_QP,
ENCODER_H264_PROP_MIN_QP,
ENCODER_H264_PROP_NUM_SLICES,
ENCODER_H264_PROP_CABAC,
ENCODER_H264_PROP_DCT8X8,
ENCODER_H264_PROP_CPB_LENGTH,
ENCODER_H264_PROP_NUM_VIEWS,
ENCODER_H264_PROP_VIEW_IDS,
ENCODER_H264_PROP_AUD,
ENCODER_H264_PROP_COMPLIANCE_MODE,
ENCODER_H264_PROP_NUM_REF_FRAMES,
ENCODER_H264_PROP_MBBRC,
ENCODER_H264_PROP_QP_IP,
ENCODER_H264_PROP_QP_IB,
ENCODER_H264_PROP_TEMPORAL_LEVELS,
ENCODER_H264_PROP_PREDICTION_TYPE,
ENCODER_H264_PROP_MAX_QP,
ENCODER_H264_PROP_QUALITY_FACTOR,
ENCODER_H264_N_PROPERTIES
};
static GParamSpec *properties[ENCODER_H264_N_PROPERTIES];
static void
gst_vaapi_encoder_h264_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (object);
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER (object);
if (base_encoder->num_codedbuf_queued > 0) {
GST_ERROR_OBJECT (object,
"failed to set any property after encoding started");
return;
}
switch (prop_id) {
case ENCODER_H264_PROP_RATECONTROL:
gst_vaapi_encoder_set_rate_control (base_encoder,
g_value_get_enum (value));
break;
case ENCODER_H264_PROP_TUNE:
gst_vaapi_encoder_set_tuning (base_encoder, g_value_get_enum (value));
break;
case ENCODER_H264_PROP_MAX_BFRAMES:
encoder->num_bframes = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_INIT_QP:
encoder->init_qp = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_MIN_QP:
encoder->min_qp = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_QP_IP:
encoder->qp_ip = g_value_get_int (value);
break;
case ENCODER_H264_PROP_QP_IB:
encoder->qp_ib = g_value_get_int (value);
break;
case ENCODER_H264_PROP_NUM_SLICES:
encoder->num_slices = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_CABAC:
encoder->use_cabac = g_value_get_boolean (value);
break;
case ENCODER_H264_PROP_DCT8X8:
encoder->use_dct8x8 = g_value_get_boolean (value);
break;
case ENCODER_H264_PROP_CPB_LENGTH:
encoder->cpb_length = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_NUM_VIEWS:
encoder->num_views = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_VIEW_IDS:
set_view_ids (encoder, value);
break;
case ENCODER_H264_PROP_AUD:
encoder->use_aud = g_value_get_boolean (value);
break;
case ENCODER_H264_PROP_COMPLIANCE_MODE:
encoder->compliance_mode = g_value_get_enum (value);
break;
case ENCODER_H264_PROP_NUM_REF_FRAMES:
encoder->num_ref_frames = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_MBBRC:
encoder->mbbrc = g_value_get_enum (value);
break;
case ENCODER_H264_PROP_TEMPORAL_LEVELS:
encoder->temporal_levels = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_PREDICTION_TYPE:
encoder->prediction_type = g_value_get_enum (value);
break;
case ENCODER_H264_PROP_MAX_QP:
encoder->max_qp = g_value_get_uint (value);
break;
case ENCODER_H264_PROP_QUALITY_FACTOR:
encoder->quality_factor = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gst_vaapi_encoder_h264_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVaapiEncoderH264 *const encoder = GST_VAAPI_ENCODER_H264 (object);
GstVaapiEncoder *const base_encoder = GST_VAAPI_ENCODER (object);
switch (prop_id) {
case ENCODER_H264_PROP_RATECONTROL:
g_value_set_enum (value, base_encoder->rate_control);
break;
case ENCODER_H264_PROP_TUNE:
g_value_set_enum (value, base_encoder->tune);
break;
case ENCODER_H264_PROP_MAX_BFRAMES:
g_value_set_uint (value, encoder->num_bframes);
break;
case ENCODER_H264_PROP_INIT_QP:
g_value_set_uint (value, encoder->init_qp);
break;
case ENCODER_H264_PROP_MIN_QP:
g_value_set_uint (value, encoder->min_qp);
break;
case ENCODER_H264_PROP_QP_IP:
g_value_set_int (value, encoder->qp_ip);
break;
case ENCODER_H264_PROP_QP_IB:
g_value_set_int (value, encoder->qp_ib);
break;
case ENCODER_H264_PROP_NUM_SLICES:
g_value_set_uint (value, encoder->num_slices);
break;
case ENCODER_H264_PROP_CABAC:
g_value_set_boolean (value, encoder->use_cabac);
break;
case ENCODER_H264_PROP_DCT8X8:
g_value_set_boolean (value, encoder->use_dct8x8);
break;
case ENCODER_H264_PROP_CPB_LENGTH:
g_value_set_uint (value, encoder->cpb_length);
break;
case ENCODER_H264_PROP_NUM_VIEWS:
g_value_set_uint (value, encoder->num_views);
break;
case ENCODER_H264_PROP_VIEW_IDS:
get_view_ids (encoder, value);
break;
case ENCODER_H264_PROP_AUD:
g_value_set_boolean (value, encoder->use_aud);
break;
case ENCODER_H264_PROP_COMPLIANCE_MODE:
g_value_set_enum (value, encoder->compliance_mode);
break;
case ENCODER_H264_PROP_NUM_REF_FRAMES:
g_value_set_uint (value, encoder->num_ref_frames);
break;
case ENCODER_H264_PROP_MBBRC:
g_value_set_enum (value, encoder->mbbrc);
break;
case ENCODER_H264_PROP_TEMPORAL_LEVELS:
g_value_set_uint (value, encoder->temporal_levels);
break;
case ENCODER_H264_PROP_PREDICTION_TYPE:
g_value_set_enum (value, encoder->prediction_type);
break;
case ENCODER_H264_PROP_MAX_QP:
g_value_set_uint (value, encoder->max_qp);
break;
case ENCODER_H264_PROP_QUALITY_FACTOR:
g_value_set_uint (value, encoder->quality_factor);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
GST_VAAPI_ENCODER_DEFINE_CLASS_DATA (H264);
static void
gst_vaapi_encoder_h264_class_init (GstVaapiEncoderH264Class * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstVaapiEncoderClass *const encoder_class = GST_VAAPI_ENCODER_CLASS (klass);
encoder_class->class_data = &g_class_data;
encoder_class->reconfigure = gst_vaapi_encoder_h264_reconfigure;
encoder_class->reordering = gst_vaapi_encoder_h264_reordering;
encoder_class->encode = gst_vaapi_encoder_h264_encode;
encoder_class->flush = gst_vaapi_encoder_h264_flush;
encoder_class->get_codec_data = gst_vaapi_encoder_h264_get_codec_data;
encoder_class->get_pending_reordered =
gst_vaapi_encoder_h264_get_pending_reordered;
object_class->set_property = gst_vaapi_encoder_h264_set_property;
object_class->get_property = gst_vaapi_encoder_h264_get_property;
object_class->finalize = gst_vaapi_encoder_h264_finalize;
/**
* GstVaapiEncoderH264:rate-control:
*
* The desired rate control mode, expressed as a #GstVaapiRateControl.
*/
properties[ENCODER_H264_PROP_RATECONTROL] =
g_param_spec_enum ("rate-control",
"Rate Control", "Rate control mode",
g_class_data.rate_control_get_type (),
g_class_data.default_rate_control,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:tune:
*
* The desired encoder tuning option.
*/
properties[ENCODER_H264_PROP_TUNE] =
g_param_spec_enum ("tune",
"Encoder Tuning",
"Encoder tuning option",
g_class_data.encoder_tune_get_type (),
g_class_data.default_encoder_tune,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:max-bframes:
*
* The number of B-frames between I and P.
*/
properties[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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:refs:
*
* The number of reference frames.
* If B frame is encoded, it will add 1 reference frame more.
*/
properties[ENCODER_H264_PROP_NUM_REF_FRAMES] =
g_param_spec_uint ("refs", "Number of Reference Frames",
"Number of reference frames", 1, 8, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:init-qp:
*
* The initial quantizer value.
*/
properties[ENCODER_H264_PROP_INIT_QP] =
g_param_spec_uint ("init-qp",
"Initial QP", "Initial quantizer value", 0, 51, 26,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:min-qp:
*
* The minimum quantizer value.
*/
properties[ENCODER_H264_PROP_MIN_QP] =
g_param_spec_uint ("min-qp",
"Minimum QP", "Minimum quantizer value", 0, 51, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:max-qp:
*
* The maximum quantizer value.
*
* Since: 1.18
*/
properties[ENCODER_H264_PROP_MAX_QP] =
g_param_spec_uint ("max-qp",
"Maximum QP", "Maximum quantizer value", 0, 51, 51,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:qp-ip:
*
* The difference of QP between I and P Frame.
* This is available only on CQP mode.
*/
properties[ENCODER_H264_PROP_QP_IP] =
g_param_spec_int ("qp-ip",
"Difference of QP between I and P frame",
"Difference of QP between I and P frame (available only on CQP)",
-51, 51, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:qp-ib:
*
* The difference of QP between I and B Frame.
* This is available only on CQP mode.
*/
properties[ENCODER_H264_PROP_QP_IB] =
g_param_spec_int ("qp-ib",
"Difference of QP between I and B frame",
"Difference of QP between I and B frame (available only on CQP)",
-51, 51, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:num-slices:
*
* The number of slices per frame.
*/
properties[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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* 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.
*/
properties[ENCODER_H264_PROP_CABAC] =
g_param_spec_boolean ("cabac",
"Enable CABAC",
"Enable CABAC entropy coding mode",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* 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.
*/
properties[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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:mbbrc:
*
* Macroblock level bitrate control.
* This is not compatible with Constant QP rate control.
*/
properties[ENCODER_H264_PROP_MBBRC] =
g_param_spec_enum ("mbbrc",
"Macroblock level Bitrate Control",
"Macroblock level Bitrate Control",
GST_VAAPI_TYPE_ENCODER_MBBRC, GST_VAAPI_ENCODER_MBBRC_AUTO,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:temporal-levels:
*
* Number of temporal levels in the encoded stream.
*/
properties[ENCODER_H264_PROP_TEMPORAL_LEVELS] =
g_param_spec_uint ("temporal-levels",
"temporal levels",
"Number of temporal levels in the encoded stream ",
MIN_TEMPORAL_LEVELS, MAX_TEMPORAL_LEVELS, MIN_TEMPORAL_LEVELS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:prediction-type:
*
* Select the referece picture selection modes
*/
properties[ENCODER_H264_PROP_PREDICTION_TYPE] =
g_param_spec_enum ("prediction-type",
"RefPic Selection",
"Reference Picture Selection Modes",
gst_vaapi_encoder_h264_prediction_type (),
GST_VAAPI_ENCODER_H264_PREDICTION_DEFAULT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:cpb-length:
*
* The size of the CPB buffer in milliseconds.
*/
properties[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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:num-views:
*
* The number of views for MVC encoding .
*/
properties[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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:view-ids:
*
* The view ids for MVC encoding .
*/
properties[ENCODER_H264_PROP_VIEW_IDS] =
gst_param_spec_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 | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:aud:
*
* Use AU (Access Unit) delimeter.
*/
properties[ENCODER_H264_PROP_AUD] =
g_param_spec_boolean ("aud", "AU delimiter",
"Use AU (Access Unit) delimeter", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiEncoderH264:Compliance Mode:
*
* Encode Tuning(Tweaking) with different compliance modes .
*
*
*/
properties[ENCODER_H264_PROP_COMPLIANCE_MODE] =
g_param_spec_enum ("compliance-mode",
"Spec Compliance Mode",
"Tune Encode quality/performance by relaxing specification"
" compliance restrictions",
gst_vaapi_encoder_h264_compliance_mode_type (),
GST_VAAPI_ENCODER_H264_COMPLIANCE_MODE_STRICT,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | GST_VAAPI_PARAM_ENCODER_EXPOSURE);
/**
* GstVaapiEncoderH264:quality_factor:
*
* quality factor used under ICQ/QVBR bitrate control mode.
*/
properties[ENCODER_H264_PROP_QUALITY_FACTOR] =
g_param_spec_uint ("quality-factor",
"Quality factor for ICQ/QVBR",
"quality factor for ICQ/QVBR bitrate control mode"
"(low value means higher-quality, higher value means lower-quality)",
1, 51, 26,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT |
GST_VAAPI_PARAM_ENCODER_EXPOSURE);
g_object_class_install_properties (object_class, ENCODER_H264_N_PROPERTIES,
properties);
}
/**
* 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 g_object_new (GST_TYPE_VAAPI_ENCODER_H264, "display", display, NULL);
}
/**
* 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;
}
/**
* gst_vaapi_encoder_h264_supports_avc:
* @encoder: a #GstVaapiEncoderH264
*
* Queries the H.264 @encoder if it supports the generation of avC
* stream format.
*
* Returns: %TRUE if @encoder supports avC; %FALSE otherwise
**/
gboolean
gst_vaapi_encoder_h264_supports_avc (GstVaapiEncoderH264 * encoder)
{
return ((GST_VAAPI_ENCODER_PACKED_HEADERS (encoder) &
(VA_ENC_PACKED_HEADER_SEQUENCE | VA_ENC_PACKED_HEADER_PICTURE)) ==
(VA_ENC_PACKED_HEADER_SEQUENCE | VA_ENC_PACKED_HEADER_PICTURE));
}
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