RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-26 01:02:33 +00:00
Code Issues Projects Releases Wiki Activity
edb1f1bc09
ffmpeg/libavformat/vvc.c
Thomas Siedel aa3155e4c2 avformat/mp4: add muxer support for H266/VVC 
Add muxer for vvcc byte stream format.
Add AV_CODEC_ID_VVC to ff_mp4_obj_type.
Add AV_CODEC_ID_VVC to ISO Media codec (VvcConfigurationBox vvi1,
vvc1 defined in ISO/IEC 14496-15:2021).
Add VvcConfigurationBox vvcC which extends FullBox type in
ISO/IEC 14496-15:2021.

Tested with:
    ffmpeg -i NovosobornayaSquare_1920x1080.mp4 -c:v libvvenc test.mp4 && ffmpeg -i test.mp4 -f null -
    ffmpeg -i NovosobornayaSquare_1920x1080.mp4 -c:v copy test.mp4     && ffmpeg -i test.mp4 -f md5 -

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Thomas Siedel <thomas.ff@spin-digital.com>
Co-Authored-By: Nuo Mi <nuomi2021@gmail.com>
2024-01-31 22:14:12 +08:00

972 lines
33 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* H.266/VVC helper functions for muxers
*
* Copyright (C) 2022, Thomas Siedel
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavcodec/get_bits.h"
#include "libavcodec/golomb.h"
#include "libavcodec/vvc.h"
#include "libavutil/intreadwrite.h"
#include "avc.h"
#include "avio.h"
#include "avio_internal.h"
#include "vvc.h"
typedef struct VVCCNALUnitArray {
uint8_t array_completeness;
uint8_t NAL_unit_type;
uint16_t num_nalus;
uint16_t *nal_unit_length;
uint8_t **nal_unit;
} VVCCNALUnitArray;
typedef struct VVCPTLRecord {
uint8_t num_bytes_constraint_info;
uint8_t general_profile_idc;
uint8_t general_tier_flag;
uint8_t general_level_idc;
uint8_t ptl_frame_only_constraint_flag;
uint8_t ptl_multilayer_enabled_flag;
uint8_t general_constraint_info[9];
uint8_t ptl_sublayer_level_present_flag[VVC_MAX_SUBLAYERS - 1];
uint8_t sublayer_level_idc[VVC_MAX_SUBLAYERS - 1];
uint8_t ptl_num_sub_profiles;
uint32_t general_sub_profile_idc[VVC_MAX_SUB_PROFILES];
} VVCPTLRecord;
typedef struct VVCDecoderConfigurationRecord {
uint8_t lengthSizeMinusOne;
uint8_t ptl_present_flag;
uint16_t ols_idx;
uint8_t num_sublayers;
uint8_t constant_frame_rate;
uint8_t chroma_format_idc;
uint8_t bit_depth_minus8;
VVCPTLRecord ptl;
uint16_t max_picture_width;
uint16_t max_picture_height;
uint16_t avg_frame_rate;
uint8_t num_of_arrays;
VVCCNALUnitArray *array;
} VVCDecoderConfigurationRecord;
typedef struct VVCCProfileTierLevel {
uint8_t profile_idc;
uint8_t tier_flag;
uint8_t general_level_idc;
uint8_t ptl_frame_only_constraint_flag;
uint8_t ptl_multilayer_enabled_flag;
// general_constraint_info
uint8_t gci_present_flag;
uint8_t gci_general_constraints[9];
uint8_t gci_num_reserved_bits;
// end general_constraint_info
uint8_t ptl_sublayer_level_present_flag[VVC_MAX_SUBLAYERS - 1];
uint8_t sublayer_level_idc[VVC_MAX_SUBLAYERS - 1];
uint8_t ptl_num_sub_profiles;
uint32_t general_sub_profile_idc[VVC_MAX_SUB_PROFILES];
} VVCCProfileTierLevel;
static void vvcc_update_ptl(VVCDecoderConfigurationRecord *vvcc,
VVCCProfileTierLevel *ptl)
{
/*
* The level indication general_level_idc must indicate a level of
* capability equal to or greater than the highest level indicated for the
* highest tier in all the parameter sets.
*/
if (vvcc->ptl.general_tier_flag < ptl->tier_flag)
vvcc->ptl.general_level_idc = ptl->general_level_idc;
else
vvcc->ptl.general_level_idc =
FFMAX(vvcc->ptl.general_level_idc, ptl->general_level_idc);
/*
* The tier indication general_tier_flag must indicate a tier equal to or
* greater than the highest tier indicated in all the parameter sets.
*/
vvcc->ptl.general_tier_flag =
FFMAX(vvcc->ptl.general_tier_flag, ptl->tier_flag);
/*
* The profile indication general_profile_idc must indicate a profile to
* which the stream associated with this configuration record conforms.
*
* If the sequence parameter sets are marked with different profiles, then
* the stream may need examination to determine which profile, if any, the
* entire stream conforms to. If the entire stream is not examined, or the
* examination reveals that there is no profile to which the entire stream
* conforms, then the entire stream must be split into two or more
* sub-streams with separate configuration records in which these rules can
* be met.
*
* Note: set the profile to the highest value for the sake of simplicity.
*/
vvcc->ptl.general_profile_idc =
FFMAX(vvcc->ptl.general_profile_idc, ptl->profile_idc);
/*
* Each bit in flags may only be set if all
* the parameter sets set that bit.
*/
vvcc->ptl.ptl_frame_only_constraint_flag &=
ptl->ptl_frame_only_constraint_flag;
vvcc->ptl.ptl_multilayer_enabled_flag &= ptl->ptl_multilayer_enabled_flag;
/*
* Constraints Info
*/
if (ptl->gci_present_flag) {
vvcc->ptl.num_bytes_constraint_info = 9;
memcpy(&vvcc->ptl.general_constraint_info[0],
&ptl->gci_general_constraints[0], sizeof(uint8_t) * 9);
} else {
vvcc->ptl.num_bytes_constraint_info = 1;
memset(&vvcc->ptl.general_constraint_info[0], 0, sizeof(uint8_t) * 9);
}
/*
* Each bit in flags may only be set if one of
* the parameter sets set that bit.
*/
memset(vvcc->ptl.ptl_sublayer_level_present_flag, 0,
sizeof(uint8_t) * vvcc->num_sublayers - 1);
memset(vvcc->ptl.sublayer_level_idc, 0,
sizeof(uint8_t) * vvcc->num_sublayers - 1);
for (int i = vvcc->num_sublayers - 2; i >= 0; i--) {
vvcc->ptl.ptl_sublayer_level_present_flag[i] |=
ptl->ptl_sublayer_level_present_flag[i];
if (vvcc->ptl.ptl_sublayer_level_present_flag[i]) {
vvcc->ptl.sublayer_level_idc[i] =
FFMAX(vvcc->ptl.sublayer_level_idc[i],
ptl->sublayer_level_idc[i]);
} else {
if (i == vvcc->num_sublayers - 1) {
vvcc->ptl.sublayer_level_idc[i] = vvcc->ptl.general_level_idc;
} else {
vvcc->ptl.sublayer_level_idc[i] =
vvcc->ptl.sublayer_level_idc[i + 1];
}
}
}
vvcc->ptl.ptl_num_sub_profiles =
FFMAX(vvcc->ptl.ptl_num_sub_profiles, ptl->ptl_num_sub_profiles);
if (vvcc->ptl.ptl_num_sub_profiles) {
for (int i = 0; i < vvcc->ptl.ptl_num_sub_profiles; i++) {
vvcc->ptl.general_sub_profile_idc[i] =
ptl->general_sub_profile_idc[i];
}
}
}
static void vvcc_parse_ptl(GetBitContext *gb,
VVCDecoderConfigurationRecord *vvcc,
unsigned int profileTierPresentFlag,
unsigned int max_sub_layers_minus1)
{
VVCCProfileTierLevel general_ptl;
int j;
if (profileTierPresentFlag) {
general_ptl.profile_idc = get_bits(gb, 7);
general_ptl.tier_flag = get_bits1(gb);
}
general_ptl.general_level_idc = get_bits(gb, 8);
general_ptl.ptl_frame_only_constraint_flag = get_bits1(gb);
general_ptl.ptl_multilayer_enabled_flag = get_bits1(gb);
if (profileTierPresentFlag) { // parse constraint info
general_ptl.gci_present_flag = get_bits1(gb);
if (general_ptl.gci_present_flag) {
for (j = 0; j < 8; j++)
general_ptl.gci_general_constraints[j] = get_bits(gb, 8);
general_ptl.gci_general_constraints[8] = get_bits(gb, 7);
general_ptl.gci_num_reserved_bits = get_bits(gb, 8);
skip_bits(gb, general_ptl.gci_num_reserved_bits);
}
while (gb->index % 8 != 0)
skip_bits1(gb);
}
for (int i = max_sub_layers_minus1 - 1; i >= 0; i--)
general_ptl.ptl_sublayer_level_present_flag[i] = get_bits1(gb);
while (gb->index % 8 != 0)
skip_bits1(gb);
for (int i = max_sub_layers_minus1 - 1; i >= 0; i--) {
if (general_ptl.ptl_sublayer_level_present_flag[i])
general_ptl.sublayer_level_idc[i] = get_bits(gb, 8);
}
if (profileTierPresentFlag) {
general_ptl.ptl_num_sub_profiles = get_bits(gb, 8);
if (general_ptl.ptl_num_sub_profiles) {
for (int i = 0; i < general_ptl.ptl_num_sub_profiles; i++)
general_ptl.general_sub_profile_idc[i] = get_bits_long(gb, 32);
}
}
vvcc_update_ptl(vvcc, &general_ptl);
}
static int vvcc_parse_vps(GetBitContext *gb,
VVCDecoderConfigurationRecord *vvcc)
{
unsigned int vps_max_layers_minus1;
unsigned int vps_max_sublayers_minus1;
unsigned int vps_default_ptl_dpb_hrd_max_tid_flag;
unsigned int vps_all_independent_layers_flag;
unsigned int vps_each_layer_is_an_ols_flag;
unsigned int vps_ols_mode_idc;
unsigned int vps_pt_present_flag[VVC_MAX_PTLS];
unsigned int vps_ptl_max_tid[VVC_MAX_PTLS];
unsigned int vps_num_ptls_minus1 = 0;
/*
* vps_video_parameter_set_id u(4)
*/
skip_bits(gb, 4);
vps_max_layers_minus1 = get_bits(gb, 6);
vps_max_sublayers_minus1 = get_bits(gb, 3);
/*
* numTemporalLayers greater than 1 indicates that the stream to which this
* configuration record applies is temporally scalable and the contained
* number of temporal layers (also referred to as temporal sub-layer or
* sub-layer in ISO/IEC 23008-2) is equal to numTemporalLayers. Value 1
* indicates that the stream is not temporally scalable. Value 0 indicates
* that it is unknown whether the stream is temporally scalable.
*/
vvcc->num_sublayers = FFMAX(vvcc->num_sublayers,
vps_max_sublayers_minus1 + 1);
if (vps_max_layers_minus1 > 0 && vps_max_sublayers_minus1 > 0)
vps_default_ptl_dpb_hrd_max_tid_flag = get_bits1(gb);
if (vps_max_layers_minus1 > 0)
vps_all_independent_layers_flag = get_bits1(gb);
else
vps_all_independent_layers_flag = 1;
for (int i = 0; i <= vps_max_layers_minus1; i++) {
skip_bits(gb, 6); //vps_layer_id[i]
if (i > 0 && !vps_all_independent_layers_flag) {
if (get_bits1(gb)) { // vps_independent_layer_flag[i]
unsigned int vps_max_tid_ref_present_flag = get_bits1(gb);
for (int j = 0; j < i; j++) {
if (vps_max_tid_ref_present_flag && get_bits1(gb)) // vps_direct_ref_layer_flag[i][j]
skip_bits(gb, 3); // vps_max_tid_il_ref_pics_plus1
}
}
}
}
if (vps_max_layers_minus1 > 0) {
if (vps_all_independent_layers_flag)
vps_each_layer_is_an_ols_flag = get_bits1(gb);
else
vps_each_layer_is_an_ols_flag = 0;
if (!vps_each_layer_is_an_ols_flag) {
if (!vps_all_independent_layers_flag)
vps_ols_mode_idc = get_bits(gb, 2);
else
vps_ols_mode_idc = 2;
if (vps_ols_mode_idc == 2) {
unsigned int vps_num_output_layer_sets_minus2 = get_bits(gb, 8);
for (int i = 1; i <= vps_num_output_layer_sets_minus2 + 1; i++) {
for (int j = 0; j <= vps_max_layers_minus1; j++) {
skip_bits1(gb); // vps_ols_output_layer_flag[i][j]
}
}
}
}
vps_num_ptls_minus1 = get_bits(gb, 8);
} else {
vps_each_layer_is_an_ols_flag = 0;
}
for (int i = 0; i <= vps_num_ptls_minus1; i++) {
if (i > 0)
vps_pt_present_flag[i] = get_bits1(gb);
else
vps_pt_present_flag[i] = 1;
if (!vps_default_ptl_dpb_hrd_max_tid_flag)
vps_ptl_max_tid[i] = get_bits(gb, 3);
else
vps_ptl_max_tid[i] = vps_max_sublayers_minus1;
}
while (gb->index % 8 != 0)
skip_bits1(gb);
for (int i = 0; i <= vps_num_ptls_minus1; i++)
vvcc_parse_ptl(gb, vvcc, vps_pt_present_flag[i], vps_ptl_max_tid[i]);
/* nothing useful for vvcc past this point */
return 0;
}
static int vvcc_parse_sps(GetBitContext *gb,
VVCDecoderConfigurationRecord *vvcc)
{
unsigned int sps_max_sublayers_minus1, sps_log2_ctu_size_minus5;
unsigned int sps_subpic_same_size_flag, sps_pic_height_max_in_luma_samples,
sps_pic_width_max_in_luma_samples;
unsigned int sps_independent_subpics_flag;
skip_bits(gb, 8); // sps_seq_parameter_set_id && sps_video_parameter_set_id
sps_max_sublayers_minus1 = get_bits(gb, 3);
/*
* numTemporalLayers greater than 1 indicates that the stream to which this
* configuration record applies is temporally scalable and the contained
* number of temporal layers (also referred to as temporal sub-layer or
* sub-layer in ISO/IEC 23008-2) is equal to numTemporalLayers. Value 1
* indicates that the stream is not temporally scalable. Value 0 indicates
* that it is unknown whether the stream is temporally scalable.
*/
vvcc->num_sublayers = FFMAX(vvcc->num_sublayers,
sps_max_sublayers_minus1 + 1);
vvcc->chroma_format_idc = get_bits(gb, 2);
sps_log2_ctu_size_minus5 = get_bits(gb, 2);
if (get_bits1(gb)) // sps_ptl_dpb_hrd_params_present_flag
vvcc_parse_ptl(gb, vvcc, 1, sps_max_sublayers_minus1);
skip_bits1(gb); // sps_gdr_enabled_flag
if (get_bits(gb, 1)) // sps_ref_pic_resampling_enabled_flag
skip_bits1(gb); // sps_res_change_in_clvs_allowed_flag
sps_pic_width_max_in_luma_samples = get_ue_golomb_long(gb);
vvcc->max_picture_width =
FFMAX(vvcc->max_picture_width, sps_pic_width_max_in_luma_samples);
sps_pic_height_max_in_luma_samples = get_ue_golomb_long(gb);
vvcc->max_picture_height =
FFMAX(vvcc->max_picture_height, sps_pic_height_max_in_luma_samples);
if (get_bits1(gb)) {
get_ue_golomb_long(gb); // sps_conf_win_left_offset
get_ue_golomb_long(gb); // sps_conf_win_right_offset
get_ue_golomb_long(gb); // sps_conf_win_top_offset
get_ue_golomb_long(gb); // sps_conf_win_bottom_offset
}
if (get_bits1(gb)) { // sps_subpic_info_present_flag
const unsigned int sps_num_subpics_minus1 = get_ue_golomb_long(gb);
const int ctb_log2_size_y = sps_log2_ctu_size_minus5 + 5;
const int ctb_size_y = 1 << ctb_log2_size_y;
const int tmp_width_val = AV_CEIL_RSHIFT(sps_pic_width_max_in_luma_samples, ctb_log2_size_y);
const int tmp_height_val = AV_CEIL_RSHIFT(sps_pic_height_max_in_luma_samples, ctb_log2_size_y);
const int wlen = av_ceil_log2(tmp_width_val);
const int hlen = av_ceil_log2(tmp_height_val);
if (sps_num_subpics_minus1 > 0) { // sps_num_subpics_minus1
sps_independent_subpics_flag = get_bits1(gb);
sps_subpic_same_size_flag = get_bits1(gb);
}
for (int i = 0; sps_num_subpics_minus1 > 0 && i <= sps_num_subpics_minus1; i++) {
if (!sps_subpic_same_size_flag || i == 0) {
if (i > 0 && sps_pic_width_max_in_luma_samples > ctb_size_y)
skip_bits(gb, wlen);
if (i > 0 && sps_pic_height_max_in_luma_samples > ctb_size_y)
skip_bits(gb, hlen);
if (i < sps_num_subpics_minus1 && sps_pic_width_max_in_luma_samples > ctb_size_y)
skip_bits(gb, wlen);
if (i < sps_num_subpics_minus1 && sps_pic_height_max_in_luma_samples > ctb_size_y)
skip_bits(gb, hlen);
}
if (!sps_independent_subpics_flag) {
skip_bits(gb, 2); // sps_subpic_treated_as_pic_flag && sps_loop_filter_across_subpic_enabled_flag
}
}
get_ue_golomb_long(gb); // sps_subpic_id_len_minus1
if (get_bits1(gb)) { // sps_subpic_id_mapping_explicitly_signalled_flag
if (get_bits1(gb)) // sps_subpic_id_mapping_present_flag
for (int i = 0; i <= sps_num_subpics_minus1; i++) {
skip_bits1(gb); // sps_subpic_id[i]
}
}
}
vvcc->bit_depth_minus8 = get_ue_golomb_long(gb);
/* nothing useful for vvcc past this point */
return 0;
}
static int vvcc_parse_pps(GetBitContext *gb,
VVCDecoderConfigurationRecord *vvcc)
{
// Nothing of importance to parse in PPS
/* nothing useful for vvcc past this point */
return 0;
}
static void nal_unit_parse_header(GetBitContext *gb, uint8_t *nal_type)
{
/*
* forbidden_zero_bit u(1)
* nuh_reserved_zero_bit u(1)
* nuh_layer_id u(6)
*/
skip_bits(gb, 8);
*nal_type = get_bits(gb, 5);
/*
* nuh_temporal_id_plus1 u(3)
*/
skip_bits(gb, 3);
}
static int vvcc_array_add_nal_unit(uint8_t *nal_buf, uint32_t nal_size,
uint8_t nal_type, int ps_array_completeness,
VVCDecoderConfigurationRecord *vvcc)
{
int ret;
uint8_t index;
uint16_t num_nalus;
VVCCNALUnitArray *array;
for (index = 0; index < vvcc->num_of_arrays; index++)
if (vvcc->array[index].NAL_unit_type == nal_type)
break;
if (index >= vvcc->num_of_arrays) {
uint8_t i;
ret =
av_reallocp_array(&vvcc->array, index + 1,
sizeof(VVCCNALUnitArray));
if (ret < 0)
return ret;
for (i = vvcc->num_of_arrays; i <= index; i++)
memset(&vvcc->array[i], 0, sizeof(VVCCNALUnitArray));
vvcc->num_of_arrays = index + 1;
}
array = &vvcc->array[index];
num_nalus = array->num_nalus;
ret = av_reallocp_array(&array->nal_unit, num_nalus + 1, sizeof(uint8_t *));
if (ret < 0)
return ret;
ret =
av_reallocp_array(&array->nal_unit_length, num_nalus + 1,
sizeof(uint16_t));
if (ret < 0)
return ret;
array->nal_unit[num_nalus] = nal_buf;
array->nal_unit_length[num_nalus] = nal_size;
array->NAL_unit_type = nal_type;
array->num_nalus++;
/*
* When the sample entry name is 'vvc1', the following applies:
* • The value of array_completeness shall be equal to 1 for arrays of SPS,
* and PPS NAL units.
* • If a VVC bitstream includes DCI NAL unit(s), the value of
* array_completeness shall be equal to 1 for the array of DCI units.
* Otherwise, NAL_unit_type shall not indicate DCI NAL units.
* • If a VVC bitstream includes VPS NAL unit(s), the value of
* array_completeness shall be equal to 1 for the array of VPS NAL units.
* Otherwise, NAL_unit_type shall not indicate VPS NAL units.
* When the value of array_completeness is equal to 1 for an array of a
* particular NAL_unit_type value, NAL units of that NAL_unit_type value
* cannot be updated without causing a different sample entry to be used.
* When the sample entry name is 'vvi1', the value of array_completeness
* of at least one of the following arrays shall be equal to 0:
• The array of DCI NAL units, if present.
• The array of VPS NAL units, if present.
• The array of SPS NAL units
• The array of PPS NAL units.
*/
if (nal_type == VVC_VPS_NUT || nal_type == VVC_SPS_NUT ||
nal_type == VVC_PPS_NUT || nal_type == VVC_DCI_NUT )
array->array_completeness = ps_array_completeness;
return 0;
}
static int vvcc_add_nal_unit(uint8_t *nal_buf, uint32_t nal_size,
int ps_array_completeness,
VVCDecoderConfigurationRecord *vvcc)
{
int ret = 0;
GetBitContext gbc;
uint8_t nal_type;
uint8_t *rbsp_buf;
uint32_t rbsp_size;
rbsp_buf = ff_nal_unit_extract_rbsp(nal_buf, nal_size, &rbsp_size, 2);
if (!rbsp_buf) {
ret = AVERROR(ENOMEM);
goto end;
}
ret = init_get_bits8(&gbc, rbsp_buf, rbsp_size);
if (ret < 0)
goto end;
nal_unit_parse_header(&gbc, &nal_type);
/*
* Note: only 'declarative' SEI messages are allowed in
* vvcc. Perhaps the SEI playload type should be checked
* and non-declarative SEI messages discarded?
*/
switch (nal_type) {
case VVC_OPI_NUT:
case VVC_VPS_NUT:
case VVC_SPS_NUT:
case VVC_PPS_NUT:
case VVC_PREFIX_SEI_NUT:
case VVC_SUFFIX_SEI_NUT:
ret = vvcc_array_add_nal_unit(nal_buf, nal_size, nal_type,
ps_array_completeness, vvcc);
if (ret < 0)
goto end;
else if (nal_type == VVC_VPS_NUT)
ret = vvcc_parse_vps(&gbc, vvcc);
else if (nal_type == VVC_SPS_NUT)
ret = vvcc_parse_sps(&gbc, vvcc);
else if (nal_type == VVC_PPS_NUT)
ret = vvcc_parse_pps(&gbc, vvcc);
else if (nal_type == VVC_OPI_NUT) {
// not yet supported
}
if (ret < 0)
goto end;
break;
default:
ret = AVERROR_INVALIDDATA;
goto end;
}
end:
av_free(rbsp_buf);
return ret;
}
static void vvcc_init(VVCDecoderConfigurationRecord *vvcc)
{
memset(vvcc, 0, sizeof(VVCDecoderConfigurationRecord));
vvcc->lengthSizeMinusOne = 3; // 4 bytes
vvcc->ptl.num_bytes_constraint_info = 1;
vvcc->ptl_present_flag = 1;
}
static void vvcc_close(VVCDecoderConfigurationRecord *vvcc)
{
uint8_t i;
for (i = 0; i < vvcc->num_of_arrays; i++) {
vvcc->array[i].num_nalus = 0;
av_freep(&vvcc->array[i].nal_unit);
av_freep(&vvcc->array[i].nal_unit_length);
}
vvcc->num_of_arrays = 0;
av_freep(&vvcc->array);
}
static int vvcc_write(AVIOContext *pb, VVCDecoderConfigurationRecord *vvcc)
{
uint8_t i;
uint16_t j, vps_count = 0, sps_count = 0, pps_count = 0;
unsigned char *buf = NULL;
/*
* It's unclear how to properly compute these fields, so
* let's always set them to values meaning 'unspecified'.
*/
vvcc->avg_frame_rate = 0;
vvcc->constant_frame_rate = 1;
av_log(NULL, AV_LOG_TRACE,
"lengthSizeMinusOne: %" PRIu8 "\n",
vvcc->lengthSizeMinusOne);
av_log(NULL, AV_LOG_TRACE,
"ptl_present_flag: %" PRIu8 "\n",
vvcc->ptl_present_flag);
av_log(NULL, AV_LOG_TRACE,
"ols_idx: %" PRIu16 "\n", vvcc->ols_idx);
av_log(NULL, AV_LOG_TRACE,
"num_sublayers: %" PRIu8 "\n",
vvcc->num_sublayers);
av_log(NULL, AV_LOG_TRACE,
"constant_frame_rate: %" PRIu8 "\n",
vvcc->constant_frame_rate);
av_log(NULL, AV_LOG_TRACE,
"chroma_format_idc: %" PRIu8 "\n",
vvcc->chroma_format_idc);
av_log(NULL, AV_LOG_TRACE,
"bit_depth_minus8: %" PRIu8 "\n",
vvcc->bit_depth_minus8);
av_log(NULL, AV_LOG_TRACE,
"num_bytes_constraint_info: %" PRIu8 "\n",
vvcc->ptl.num_bytes_constraint_info);
av_log(NULL, AV_LOG_TRACE,
"general_profile_idc: %" PRIu8 "\n",
vvcc->ptl.general_profile_idc);
av_log(NULL, AV_LOG_TRACE,
"general_tier_flag: %" PRIu8 "\n",
vvcc->ptl.general_tier_flag);
av_log(NULL, AV_LOG_TRACE,
"general_level_idc: %" PRIu8 "\n",
vvcc->ptl.general_level_idc);
av_log(NULL, AV_LOG_TRACE,
"ptl_frame_only_constraint_flag: %" PRIu8 "\n",
vvcc->ptl.ptl_frame_only_constraint_flag);
av_log(NULL, AV_LOG_TRACE,
"ptl_multilayer_enabled_flag: %" PRIu8 "\n",
vvcc->ptl.ptl_multilayer_enabled_flag);
for (i = 0; i < vvcc->ptl.num_bytes_constraint_info; i++) {
av_log(NULL, AV_LOG_TRACE,
"general_constraint_info[%d]: %" PRIu8 "\n", i,
vvcc->ptl.general_constraint_info[i]);
}
for (i = 0; i < vvcc->num_sublayers - 1; i++) {
av_log(NULL, AV_LOG_TRACE,
"ptl_sublayer_level_present_flag[%" PRIu8 "]: %" PRIu8 "\n", i,
vvcc->ptl.ptl_sublayer_level_present_flag[i]);
av_log(NULL, AV_LOG_TRACE,
"sublayer_level_idc[%" PRIu8 "]: %" PRIu8 "\n", i,
vvcc->ptl.sublayer_level_idc[i]);
}
av_log(NULL, AV_LOG_TRACE,
"num_sub_profiles: %" PRIu8 "\n",
vvcc->ptl.ptl_num_sub_profiles);
for (i = 0; i < vvcc->ptl.ptl_num_sub_profiles; i++) {
av_log(NULL, AV_LOG_TRACE,
"general_sub_profile_idc[%" PRIu8 "]: %" PRIx32 "\n", i,
vvcc->ptl.general_sub_profile_idc[i]);
}
av_log(NULL, AV_LOG_TRACE,
"max_picture_width: %" PRIu16 "\n",
vvcc->max_picture_width);
av_log(NULL, AV_LOG_TRACE,
"max_picture_height: %" PRIu16 "\n",
vvcc->max_picture_height);
av_log(NULL, AV_LOG_TRACE,
"avg_frame_rate: %" PRIu16 "\n",
vvcc->avg_frame_rate);
av_log(NULL, AV_LOG_TRACE,
"num_of_arrays: %" PRIu8 "\n",
vvcc->num_of_arrays);
for (i = 0; i < vvcc->num_of_arrays; i++) {
av_log(NULL, AV_LOG_TRACE,
"array_completeness[%" PRIu8 "]: %" PRIu8 "\n", i,
vvcc->array[i].array_completeness);
av_log(NULL, AV_LOG_TRACE,
"NAL_unit_type[%" PRIu8 "]: %" PRIu8 "\n", i,
vvcc->array[i].NAL_unit_type);
av_log(NULL, AV_LOG_TRACE,
"num_nalus[%" PRIu8 "]: %" PRIu16 "\n", i,
vvcc->array[i].num_nalus);
for (j = 0; j < vvcc->array[i].num_nalus; j++)
av_log(NULL, AV_LOG_TRACE,
"nal_unit_length[%" PRIu8 "][%" PRIu16 "]: %"
PRIu16 "\n", i, j, vvcc->array[i].nal_unit_length[j]);
}
/*
* We need at least one of each: VPS and SPS.
*/
for (i = 0; i < vvcc->num_of_arrays; i++)
switch (vvcc->array[i].NAL_unit_type) {
case VVC_VPS_NUT:
vps_count += vvcc->array[i].num_nalus;
break;
case VVC_SPS_NUT:
sps_count += vvcc->array[i].num_nalus;
break;
case VVC_PPS_NUT:
pps_count += vvcc->array[i].num_nalus;
break;
default:
break;
}
if (vps_count > VVC_MAX_VPS_COUNT)
return AVERROR_INVALIDDATA;
if (!sps_count || sps_count > VVC_MAX_SPS_COUNT)
return AVERROR_INVALIDDATA;
if (!pps_count || pps_count > VVC_MAX_PPS_COUNT)
return AVERROR_INVALIDDATA;
/* bit(5) reserved = ‘11111’b;
unsigned int (2) LengthSizeMinusOne
unsigned int (1) ptl_present_flag */
avio_w8(pb, vvcc->lengthSizeMinusOne << 1 | vvcc->ptl_present_flag | 0xf8);
if (vvcc->ptl_present_flag) {
/*
* unsigned int(9) ols_idx;
* unsigned int(3) num_sublayers;
* unsigned int(2) constant_frame_rate;
* unsigned int(2) chroma_format_idc; */
avio_wb16(pb,
vvcc->ols_idx << 7 | vvcc->num_sublayers << 4 | vvcc->
constant_frame_rate << 2 | vvcc->chroma_format_idc);
/* unsigned int(3) bit_depth_minus8;
bit(5) reserved = ‘11111’b; */
avio_w8(pb, vvcc->bit_depth_minus8 << 5 | 0x1f);
//VVCPTLRecord
/* bit(2) reserved = ‘00’b;
unsigned int (6) num_bytes_constraint_info */
avio_w8(pb, vvcc->ptl.num_bytes_constraint_info & 0x3f);
/* unsigned int (7) general_profile_idc
unsigned int (1) general_tier_flag */
avio_w8(pb,
vvcc->ptl.general_profile_idc << 1 | vvcc->ptl.general_tier_flag);
/* unsigned int (8) general_level_idc */
avio_w8(pb, vvcc->ptl.general_level_idc);
/*
* unsigned int (1) ptl_frame_only_constraint_flag
* unsigned int (1) ptl_multilayer_enabled_flag
* unsigned int (8*num_bytes_constraint_info -2) general_constraint_info */
buf =
(unsigned char *) malloc(sizeof(unsigned char) *
vvcc->ptl.num_bytes_constraint_info);
*buf = vvcc->ptl.ptl_frame_only_constraint_flag << vvcc->ptl.
num_bytes_constraint_info * 8 - 1 | vvcc->ptl.
ptl_multilayer_enabled_flag << vvcc->ptl.num_bytes_constraint_info *
8 - 2 | *vvcc->ptl.general_constraint_info >> 2;
avio_write(pb, buf, vvcc->ptl.num_bytes_constraint_info);
free(buf);
if (vvcc->num_sublayers > 1) {
uint8_t ptl_sublayer_level_present_flags = 0;
for (int i = vvcc->num_sublayers - 2; i >= 0; i--) {
ptl_sublayer_level_present_flags =
(ptl_sublayer_level_present_flags << 1 | vvcc->ptl.
ptl_sublayer_level_present_flag[i]);
}
avio_w8(pb, ptl_sublayer_level_present_flags);
}
for (int i = vvcc->num_sublayers - 2; i >= 0; i--) {
if (vvcc->ptl.ptl_sublayer_level_present_flag[i])
avio_w8(pb, vvcc->ptl.sublayer_level_idc[i]);
}
/* unsigned int(8) num_sub_profiles; */
avio_w8(pb, vvcc->ptl.ptl_num_sub_profiles);
for (int j = 0; j < vvcc->ptl.ptl_num_sub_profiles; j++) {
/* unsigned int(32) general_sub_profile_idc[j]; */
avio_wb32(pb, vvcc->ptl.general_sub_profile_idc[j]);
}
//End of VvcPTLRecord
/*
* unsigned int(16) max_picture_width;*/
avio_wb16(pb, vvcc->max_picture_width);
/*
* unsigned int(16) max_picture_height;*/
avio_wb16(pb, vvcc->max_picture_height);
/*
* unsigned int(16) avg_frame_rate; */
avio_wb16(pb, vvcc->avg_frame_rate);
}
/* unsigned int(8) num_of_arrays; */
avio_w8(pb, vvcc->num_of_arrays);
for (i = 0; i < vvcc->num_of_arrays; i++) {
/*
* bit(1) array_completeness;
* unsigned int(2) reserved = 0;
* unsigned int(5) NAL_unit_type;
*/
avio_w8(pb, vvcc->array[i].array_completeness << 7 |
vvcc->array[i].NAL_unit_type & 0x1f);
/* unsigned int(16) num_nalus; */
if (vvcc->array[i].NAL_unit_type != VVC_DCI_NUT &&
vvcc->array[i].NAL_unit_type != VVC_OPI_NUT)
avio_wb16(pb, vvcc->array[i].num_nalus);
for (j = 0; j < vvcc->array[i].num_nalus; j++) {
/* unsigned int(16) nal_unit_length; */
avio_wb16(pb, vvcc->array[i].nal_unit_length[j]);
/* bit(8*nal_unit_length) nal_unit; */
avio_write(pb, vvcc->array[i].nal_unit[j],
vvcc->array[i].nal_unit_length[j]);
}
}
return 0;
}
int ff_vvc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in,
int size, int filter_ps, int *ps_count)
{
int num_ps = 0, ret = 0;
uint8_t *buf, *end, *start = NULL;
if (!filter_ps) {
ret = ff_avc_parse_nal_units(pb, buf_in, size);
goto end;
}
ret = ff_avc_parse_nal_units_buf(buf_in, &start, &size);
if (ret < 0)
goto end;
ret = 0;
buf = start;
end = start + size;
while (end - buf > 4) {
uint32_t len = FFMIN(AV_RB32(buf), end - buf - 4);
uint8_t type = (buf[5] >> 3);
buf += 4;
switch (type) {
case VVC_VPS_NUT:
case VVC_SPS_NUT:
case VVC_PPS_NUT:
num_ps++;
break;
default:
ret += 4 + len;
avio_wb32(pb, len);
avio_write(pb, buf, len);
break;
}
buf += len;
}
end:
av_free(start);
if (ps_count)
*ps_count = num_ps;
return ret;
}
int ff_vvc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out,
int *size, int filter_ps, int *ps_count)
{
AVIOContext *pb;
int ret;
ret = avio_open_dyn_buf(&pb);
if (ret < 0)
return ret;
ret = ff_vvc_annexb2mp4(pb, buf_in, *size, filter_ps, ps_count);
if (ret < 0) {
ffio_free_dyn_buf(&pb);
return ret;
}
*size = avio_close_dyn_buf(pb, buf_out);
return 0;
}
int ff_isom_write_vvcc(AVIOContext *pb, const uint8_t *data,
int size, int ps_array_completeness)
{
VVCDecoderConfigurationRecord vvcc;
uint8_t *buf, *end, *start;
int ret;
if (size < 6) {
/* We can't write a valid vvcc from the provided data */
return AVERROR_INVALIDDATA;
} else if ((*data & 0xf8) == 0xf8) {
/* Data is already vvcc-formatted */
avio_write(pb, data, size);
return 0;
} else if (!(AV_RB24(data) == 1 || AV_RB32(data) == 1)) {
/* Not a valid Annex B start code prefix */
return AVERROR_INVALIDDATA;
}
ret = ff_avc_parse_nal_units_buf(data, &start, &size);
if (ret < 0)
return ret;
vvcc_init(&vvcc);
buf = start;
end = start + size;
while (end - buf > 4) {
uint32_t len = FFMIN(AV_RB32(buf), end - buf - 4);
uint8_t type = (buf[5] >> 3);
buf += 4;
switch (type) {
case VVC_OPI_NUT:
case VVC_VPS_NUT:
case VVC_SPS_NUT:
case VVC_PPS_NUT:
case VVC_PREFIX_SEI_NUT:
case VVC_SUFFIX_SEI_NUT:
ret = vvcc_add_nal_unit(buf, len, ps_array_completeness, &vvcc);
if (ret < 0)
goto end;
break;
default:
break;
}
buf += len;
}
ret = vvcc_write(pb, &vvcc);
end:
vvcc_close(&vvcc);
av_free(start);
return ret;
}
Reference in New Issue View Git Blame Copy Permalink