From aa3155e4c2b88f5eaa957b326c0cbe02f1432c87 Mon Sep 17 00:00:00 2001 From: Thomas Siedel Date: Tue, 30 Jan 2024 20:48:58 +0800 Subject: [PATCH] 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 Signed-off-by: Thomas Siedel Co-Authored-By: Nuo Mi --- libavformat/Makefile | 6 +- libavformat/isom.c | 1 + libavformat/isom_tags.c | 3 + libavformat/mov.c | 6 + libavformat/movenc.c | 40 +- libavformat/vvc.c | 971 ++++++++++++++++++++++++++++++++++++++++ libavformat/vvc.h | 99 ++++ 7 files changed, 1122 insertions(+), 4 deletions(-) create mode 100644 libavformat/vvc.c create mode 100644 libavformat/vvc.h diff --git a/libavformat/Makefile b/libavformat/Makefile index dcc99eeac4..05b9b8a115 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -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 \ diff --git a/libavformat/isom.c b/libavformat/isom.c index 6d019881e5..9fbccd4437 100644 --- a/libavformat/isom.c +++ b/libavformat/isom.c @@ -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 */ diff --git a/libavformat/isom_tags.c b/libavformat/isom_tags.c index a575b7c160..058f0f2a59 100644 --- a/libavformat/isom_tags.c +++ b/libavformat/isom_tags.c @@ -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 */ diff --git a/libavformat/mov.c b/libavformat/mov.c index 4cffd6c7db..cf931d4594 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -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 }, diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 8a27afbc57..b724bd5ebc 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -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') }, diff --git a/libavformat/vvc.c b/libavformat/vvc.c new file mode 100644 index 0000000000..14a4c0a2f3 --- /dev/null +++ b/libavformat/vvc.c @@ -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; +} diff --git a/libavformat/vvc.h b/libavformat/vvc.h new file mode 100644 index 0000000000..11c700540f --- /dev/null +++ b/libavformat/vvc.h @@ -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 +#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 */