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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>
This commit is contained in:
Thomas Siedel 2024-01-30 20:48:58 +08:00 committed by Nuo Mi
parent 5860a966d2
commit aa3155e4c2
7 changed files with 1122 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libavformat/Makefile
View File

@ -343,7 +343,7 @@ OBJS-$(CONFIG_MATROSKA_DEMUXER) += matroskadec.o matroska.o \
oggparsevorbis.o vorbiscomment.o \
qtpalette.o replaygain.o dovi_isom.o
OBJS-$(CONFIG_MATROSKA_MUXER) += matroskaenc.o matroska.o \
av1.o avc.o hevc.o \
av1.o avc.o hevc.o vvc.o\
flacenc_header.o avlanguage.o \
vorbiscomment.o wv.o dovi_isom.o
OBJS-$(CONFIG_MCA_DEMUXER) += mca.o
@ -365,7 +365,7 @@ OBJS-$(CONFIG_MODS_DEMUXER) += mods.o
OBJS-$(CONFIG_MOFLEX_DEMUXER) += moflex.o
OBJS-$(CONFIG_MOV_DEMUXER) += mov.o mov_chan.o mov_esds.o \
qtpalette.o replaygain.o dovi_isom.o
OBJS-$(CONFIG_MOV_MUXER) += movenc.o av1.o avc.o hevc.o vpcc.o \
OBJS-$(CONFIG_MOV_MUXER) += movenc.o av1.o avc.o hevc.o vvc.o vpcc.o \
movenchint.o mov_chan.o rtp.o \
movenccenc.o movenc_ttml.o rawutils.o \
dovi_isom.o evc.o
@ -520,7 +520,7 @@ OBJS-$(CONFIG_RTP_MUXER) += rtp.o \
rtpenc_vp8.o \
rtpenc_vp9.o \
rtpenc_xiph.o \
avc.o hevc.o
avc.o hevc.o vvc.o
OBJS-$(CONFIG_RTSP_DEMUXER) += rtsp.o rtspdec.o httpauth.o \
urldecode.o
OBJS-$(CONFIG_RTSP_MUXER) += rtsp.o rtspenc.o httpauth.o \

1
libavformat/isom.c
View File

@ -36,6 +36,7 @@ const AVCodecTag ff_mp4_obj_type[] = {
{ AV_CODEC_ID_MPEG4 , 0x20 },
{ AV_CODEC_ID_H264 , 0x21 },
{ AV_CODEC_ID_HEVC , 0x23 },
{ AV_CODEC_ID_VVC , 0x33 },
{ AV_CODEC_ID_AAC , 0x40 },
{ AV_CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
{ AV_CODEC_ID_MPEG2VIDEO , 0x61 }, /* MPEG-2 Main */

3
libavformat/isom_tags.c
View File

@ -118,6 +118,9 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
{ AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
{ AV_CODEC_ID_VVC, MKTAG('v', 'v', 'c', '1') },
{ AV_CODEC_ID_VVC, MKTAG('v', 'v', 'i', '1') },
{ AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') }, /* HEVC/H.265 which indicates parameter sets may be in ES */
{ AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, /* HEVC/H.265 which indicates parameter sets shall not be in ES */
{ AV_CODEC_ID_HEVC, MKTAG('d', 'v', 'h', 'e') }, /* HEVC-based Dolby Vision derived from hev1 */

6
libavformat/mov.c
View File

@ -2123,6 +2123,11 @@ static int mov_read_glbl(MOVContext *c, AVIOContext *pb, MOVAtom atom)
if ((uint64_t)atom.size > (1<<30))
return AVERROR_INVALIDDATA;
if (atom.type == MKTAG('v','v','c','C')) {
avio_skip(pb, 4);
atom.size -= 4;
}
if (atom.size >= 10) {
// Broken files created by legacy versions of libavformat will
// wrap a whole fiel atom inside of a glbl atom.
@ -8129,6 +8134,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('s','g','p','d'), mov_read_sgpd },
{ MKTAG('s','b','g','p'), mov_read_sbgp },
{ MKTAG('h','v','c','C'), mov_read_glbl },
{ MKTAG('v','v','c','C'), mov_read_glbl },
{ MKTAG('u','u','i','d'), mov_read_uuid },
{ MKTAG('C','i','n', 0x8e), mov_read_targa_y216 },
{ MKTAG('f','r','e','e'), mov_read_free },

40
libavformat/movenc.c
View File

@ -68,6 +68,7 @@
#include "ttmlenc.h"
#include "version.h"
#include "vpcc.h"
#include "vvc.h"
static const AVOption options[] = {
{ "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
@ -1473,6 +1474,23 @@ static int mov_write_evcc_tag(AVIOContext *pb, MOVTrack *track)
return update_size(pb, pos);
}
static int mov_write_vvcc_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0);
ffio_wfourcc(pb, "vvcC");
avio_w8 (pb, 0); /* version */
avio_wb24(pb, 0); /* flags */
if (track->tag == MKTAG('v','v','c','1'))
ff_isom_write_vvcc(pb, track->vos_data, track->vos_len, 1);
else
ff_isom_write_vvcc(pb, track->vos_data, track->vos_len, 0);
return update_size(pb, pos);
}
/* also used by all avid codecs (dv, imx, meridien) and their variants */
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
{
@ -2382,6 +2400,8 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
avid = 1;
} else if (track->par->codec_id == AV_CODEC_ID_HEVC)
mov_write_hvcc_tag(pb, track);
else if (track->par->codec_id == AV_CODEC_ID_VVC)
mov_write_vvcc_tag(pb, track);
else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
mov_write_avcc_tag(pb, track);
if (track->mode == MODE_IPOD)
@ -6170,6 +6190,7 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
if ((par->codec_id == AV_CODEC_ID_DNXHD ||
par->codec_id == AV_CODEC_ID_H264 ||
par->codec_id == AV_CODEC_ID_HEVC ||
par->codec_id == AV_CODEC_ID_VVC ||
par->codec_id == AV_CODEC_ID_VP9 ||
par->codec_id == AV_CODEC_ID_EVC ||
par->codec_id == AV_CODEC_ID_TRUEHD) && !trk->vos_len &&
@ -6235,6 +6256,18 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
}
}
} else if (par->codec_id == AV_CODEC_ID_VVC && trk->vos_len > 6 &&
(AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) {
/* extradata is Annex B, assume the bitstream is too and convert it */
if (trk->hint_track >= 0 && trk->hint_track < mov->nb_tracks) {
ret = ff_vvc_annexb2mp4_buf(pkt->data, &reformatted_data,
&size, 0, NULL);
if (ret < 0)
return ret;
avio_write(pb, reformatted_data, size);
} else {
size = ff_vvc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
}
} else if (par->codec_id == AV_CODEC_ID_AV1) {
if (trk->hint_track >= 0 && trk->hint_track < mov->nb_tracks) {
ret = ff_av1_filter_obus_buf(pkt->data, &reformatted_data,
@ -6281,6 +6314,8 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
} else if(par->codec_id == AV_CODEC_ID_HEVC && par->extradata_size > 21) {
int nal_size_length = (par->extradata[21] & 0x3) + 1;
ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size);
} else if(par->codec_id == AV_CODEC_ID_VVC) {
ret = AVERROR_PATCHWELCOME;
} else {
ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size);
}
@ -7363,7 +7398,8 @@ static int mov_init(AVFormatContext *s)
if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key,
(track->par->codec_id == AV_CODEC_ID_H264 || track->par->codec_id == AV_CODEC_ID_HEVC),
(track->par->codec_id == AV_CODEC_ID_H264 || track->par->codec_id == AV_CODEC_ID_HEVC ||
track->par->codec_id == AV_CODEC_ID_VVC),
s->flags & AVFMT_FLAG_BITEXACT);
if (ret)
return ret;
@ -7832,6 +7868,8 @@ static const AVCodecTag codec_mp4_tags[] = {
{ AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') },
{ AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') },
{ AV_CODEC_ID_HEVC, MKTAG('d', 'v', 'h', '1') },
{ AV_CODEC_ID_VVC, MKTAG('v', 'v', 'c', '1') },
{ AV_CODEC_ID_VVC, MKTAG('v', 'v', 'i', '1') },
{ AV_CODEC_ID_EVC, MKTAG('e', 'v', 'c', '1') },
{ AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '4', 'v') },
{ AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '4', 'v') },

971
libavformat/vvc.c Normal file
View File

@ -0,0 +1,971 @@
/*
* 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;
}

99
libavformat/vvc.h Normal file
View File

@ -0,0 +1,99 @@
/*
* H.266 / VVC helper functions for muxers
*
* 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
*/
/**
* @file
* internal header for H.266/VVC (de)muxer utilities
*/
#ifndef AVFORMAT_VVC_H
#define AVFORMAT_VVC_H
#include <stdint.h>
#include "avio.h"
/**
* Writes Annex B formatted H.266/VVC NAL units to the provided AVIOContext.
*
* The NAL units are converted to an MP4-compatible format (start code prefixes
* are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
*
* If filter_ps is non-zero, any VVC parameter sets found in the input will be
* discarded, and *ps_count will be set to the number of discarded PS NAL units.
*
* @param pb address of the AVIOContext where the data shall be written
* @param buf_in address of the buffer holding the input data
* @param size size (in bytes) of the input buffer
* @param filter_ps whether to write parameter set NAL units to the output (0)
* or to discard them (non-zero)
* @param ps_count address of the variable where the number of discarded
* parameter set NAL units shall be written, may be NULL
* @return the amount (in bytes) of data written in case of success, a negative
* value corresponding to an AVERROR code in case of failure
*/
int ff_vvc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in,
int size, int filter_ps, int *ps_count);
/**
* Writes Annex B formatted H.266/VVC NAL units to a data buffer.
*
* The NAL units are converted to an MP4-compatible format (start code prefixes
* are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
*
* If filter_ps is non-zero, any VVC parameter sets found in the input will be
* discarded, and *ps_count will be set to the number of discarded PS NAL units.
*
* On success, *size holds the size (in bytes) of the output data buffer.
*
* @param buf_in address of the buffer holding the input data
* @param size address of the variable holding the size (in bytes) of the input
* buffer (on input) and of the output buffer (on success)
* @param buf_out on success, address of the variable holding the address of
* the output buffer
* @param filter_ps whether to write parameter set NAL units to the output (0)
* or to discard them (non-zero)
* @param ps_count address of the variable where the number of discarded
* parameter set NAL units shall be written, may be NULL
* @return 0 in case of success, a negative value corresponding to an AVERROR
* code in case of failure
* @note *buf_out will be treated as uninitialized on input and won't be freed.
*/
int ff_vvc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out,
int *size, int filter_ps, int *ps_count);
/**
* Writes H.266/VVC extradata (parameter sets, declarative SEI NAL units) to
* the provided AVIOContext.
*
* If the extradata is Annex B format, it gets converted to vvcC format before
* writing.
*
* @param pb address of the AVIOContext where the vvcC shall be written
* @param data address of the buffer holding the data needed to write the vvcC
* @param size size (in bytes) of the data buffer
* @param ps_array_completeness whether all parameter sets are in the vvcC (1)
* or there may be additional parameter sets in the bitstream (0)
* @return >=0 in case of success, a negative value corresponding to an AVERROR
* code in case of failure
*/
int ff_isom_write_vvcc(AVIOContext *pb, const uint8_t *data,
int size, int ps_array_completeness);
#endif /* AVFORMAT_VVC_H */