@@ -245,6 +245,7 @@ OBJS-$(CONFIG_H263_DEMUXER) += h263dec.o rawdec.o
OBJS-$(CONFIG_H263_MUXER) += rawenc.o
OBJS-$(CONFIG_H264_DEMUXER) += h264dec.o rawdec.o
OBJS-$(CONFIG_H264_MUXER) += rawenc.o
+OBJS-$(CONFIG_H266_DEMUXER) += h266dec.o rawdec.o
OBJS-$(CONFIG_HASH_MUXER) += hashenc.o
OBJS-$(CONFIG_HCA_DEMUXER) += hca.o
OBJS-$(CONFIG_HCOM_DEMUXER) += hcom.o pcm.o
@@ -199,6 +199,7 @@ extern const AVInputFormat ff_h263_demuxer;
extern const FFOutputFormat ff_h263_muxer;
extern const AVInputFormat ff_h264_demuxer;
extern const FFOutputFormat ff_h264_muxer;
+extern const AVInputFormat ff_h266_demuxer;
extern const FFOutputFormat ff_hash_muxer;
extern const AVInputFormat ff_hca_demuxer;
extern const AVInputFormat ff_hcom_demuxer;
@@ -120,6 +120,7 @@ static int set_codec_from_probe_data(AVFormatContext *s, AVStream *st,
{ "mp3", AV_CODEC_ID_MP3, AVMEDIA_TYPE_AUDIO },
{ "mpegvideo", AV_CODEC_ID_MPEG2VIDEO, AVMEDIA_TYPE_VIDEO },
{ "truehd", AV_CODEC_ID_TRUEHD, AVMEDIA_TYPE_AUDIO },
+ { "vvc", AV_CODEC_ID_VVC, AVMEDIA_TYPE_VIDEO },
{ 0 }
};
int score;
@@ -743,7 +744,8 @@ static int64_t select_from_pts_buffer(AVStream *st, int64_t *pts_buffer, int64_t
{
FFStream *const sti = ffstream(st);
int onein_oneout = st->codecpar->codec_id != AV_CODEC_ID_H264 &&
- st->codecpar->codec_id != AV_CODEC_ID_HEVC;
+ st->codecpar->codec_id != AV_CODEC_ID_HEVC &&
+ st->codecpar->codec_id != AV_CODEC_ID_VVC;
if (!onein_oneout) {
int delay = sti->avctx->has_b_frames;
@@ -933,7 +935,8 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
int64_t offset;
AVRational duration;
int onein_oneout = st->codecpar->codec_id != AV_CODEC_ID_H264 &&
- st->codecpar->codec_id != AV_CODEC_ID_HEVC;
+ st->codecpar->codec_id != AV_CODEC_ID_HEVC &&
+ st->codecpar->codec_id != AV_CODEC_ID_VVC;
if (s->flags & AVFMT_FLAG_NOFILLIN)
return;
new file mode 100644
@@ -0,0 +1,984 @@
+/*
+ * 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/h266.h"
+#include "libavutil/intreadwrite.h"
+#include "avc.h"
+#include "avio.h"
+#include "avio_internal.h"
+#include "h266.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;
+ uint8_t *sublayer_level_idc;
+ uint8_t ptl_num_sub_profiles;
+ uint32_t *general_sub_profile_idc;
+} 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;
+ uint8_t *sublayer_level_idc;
+ uint8_t ptl_num_sub_profiles;
+ uint32_t *general_sub_profile_idc;
+} 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.
+ */
+ vvcc->ptl.ptl_sublayer_level_present_flag =
+ (uint8_t *) malloc(sizeof(uint8_t) * vvcc->num_sublayers - 1);
+ vvcc->ptl.sublayer_level_idc =
+ (uint8_t *) malloc(sizeof(uint8_t) * vvcc->num_sublayers - 1);
+
+ 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) {
+ vvcc->ptl.general_sub_profile_idc =
+ (uint32_t *) malloc(sizeof(uint32_t) *
+ 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];
+ }
+ } else {
+ vvcc->ptl.general_sub_profile_idc =
+ (uint32_t *) malloc(sizeof(uint32_t));
+ }
+}
+
+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] = 0;
+ 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);
+ }
+
+ general_ptl.ptl_sublayer_level_present_flag =
+ (uint8_t *) malloc(sizeof(uint8_t) * max_sub_layers_minus1);
+ 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);
+
+ general_ptl.sublayer_level_idc =
+ (uint8_t *) malloc(sizeof(uint8_t) * max_sub_layers_minus1);
+ 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) {
+ general_ptl.general_sub_profile_idc =
+ (uint32_t *) malloc(sizeof(uint32_t) *
+ 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);
+ }
+ } else {
+ general_ptl.general_sub_profile_idc =
+ (uint32_t *) malloc(sizeof(uint32_t));
+ }
+ }
+
+ vvcc_update_ptl(vvcc, &general_ptl);
+
+ free(general_ptl.ptl_sublayer_level_present_flag);
+ free(general_ptl.sublayer_level_idc);
+ free(general_ptl.general_sub_profile_idc);
+}
+
+static int vvcc_parse_vps(GetBitContext *gb,
+ VVCDecoderConfigurationRecord *vvcc)
+{
+ unsigned int vps_max_layers_minus1;
+ unsigned int vps_max_sub_layers_minus1;
+ unsigned int vps_default_ptl_dpb_hrd_max_tid_flag;
+ unsigned int vps_all_independant_layer_flag;
+ unsigned int vps_each_layer_is_an_ols_flag;
+ unsigned int vps_ols_mode_idc;
+
+ unsigned int *vps_pt_present_flag;
+ unsigned int *vps_ptl_max_tid;
+ 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_sub_layers_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_sub_layers_minus1 + 1);
+
+ if (vps_max_layers_minus1 > 0 && vps_max_sub_layers_minus1 > 0)
+ vps_default_ptl_dpb_hrd_max_tid_flag = get_bits1(gb);
+ if (vps_max_layers_minus1 > 0)
+ vps_all_independant_layer_flag = get_bits1(gb);
+
+ for (int i = 0; i <= vps_max_layers_minus1; i++) {
+ skip_bits(gb, 6); //vps_default_ptl_dpb_hrd_max_tid_flag[i]
+ if (i > 0 && !vps_all_independant_layer_flag) {
+ if (get_bits1(gb)) { // vps_independant_layer_flag
+ 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_independant_layer_flag)
+ vps_each_layer_is_an_ols_flag = get_bits1(gb);
+ if (vps_each_layer_is_an_ols_flag) {
+ if (!vps_all_independant_layer_flag)
+ vps_ols_mode_idc = get_bits(gb, 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_num_ptls_minus1 = get_bits(gb, 8);
+ }
+
+ vps_pt_present_flag =
+ (unsigned int *) malloc(sizeof(unsigned int) *
+ (vps_num_ptls_minus1 + 1));
+ vps_ptl_max_tid =
+ (unsigned int *) malloc(sizeof(unsigned int) *
+ (vps_num_ptls_minus1 + 1));
+ for (int i = 0; i <= vps_num_ptls_minus1; i++) {
+ if (i > 0)
+ vps_pt_present_flag[i] = get_bits1(gb);
+ if (!vps_default_ptl_dpb_hrd_max_tid_flag)
+ vps_ptl_max_tid[i] = get_bits(gb, 3);
+ }
+
+ 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]);
+ }
+
+ free(vps_pt_present_flag);
+ free(vps_ptl_max_tid);
+
+ /* nothing useful for vvcc past this point */
+ return 0;
+}
+
+static int vvcc_parse_sps(GetBitContext *gb,
+ VVCDecoderConfigurationRecord *vvcc)
+{
+ unsigned int sps_max_sub_layers_minus1, log2_ctu_size_minus5;
+ //unsigned int num_short_term_ref_pic_sets, num_delta_pocs[VVC_MAX_REF_PIC_LISTS];
+ //unsigned int sps_chroma_format_idc;
+ unsigned int sps_subpic_same_size_flag, sps_pic_height_max_in_luma_sample,
+ sps_pic_width_max_in_luma_sample;
+ unsigned int sps_independant_subpics_flag;
+ unsigned int flag;
+
+ skip_bits(gb, 8); // sps_seq_parameter_set_id && sps_video_parameter_set_id
+ sps_max_sub_layers_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_sub_layers_minus1 + 1);
+
+ vvcc->chroma_format_idc = get_bits(gb, 2);
+ 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_sub_layers_minus1);
+
+ flag = get_bits(gb, 1); //skip_bits1(gb); //sps_gdr_enabled_flag
+ flag = get_bits(gb, 1); //sps_ref_pic_resampling_enabled_flag
+ if (flag) { //sps_ref_pic_resampling_enabled_flag
+ flag = get_bits(gb, 1); //skip_bits1(gb); //sps_res_change_in_clvs_allowed_flag
+ }
+
+ sps_pic_width_max_in_luma_sample = get_ue_golomb_long(gb);
+ vvcc->max_picture_width =
+ FFMAX(vvcc->max_picture_width, sps_pic_width_max_in_luma_sample);
+ sps_pic_height_max_in_luma_sample = get_ue_golomb_long(gb);
+ vvcc->max_picture_height =
+ FFMAX(vvcc->max_picture_height, sps_pic_height_max_in_luma_sample);
+
+ 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
+ unsigned int sps_num_subpics_minus1 = get_ue_golomb_long(gb);
+ if (sps_num_subpics_minus1 > 0) { // sps_num_subpics_minus1
+ sps_independant_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) {
+ int len = FFMIN(log2_ctu_size_minus5 + 5, 16);
+ if (i > 0 && sps_pic_width_max_in_luma_sample > 128)
+ skip_bits(gb, len);
+ if (i > 0 && sps_pic_height_max_in_luma_sample > 128)
+ skip_bits(gb, len);
+ if (i < sps_num_subpics_minus1
+ && sps_pic_width_max_in_luma_sample > 128)
+ skip_bits(gb, len);
+ if (i < sps_num_subpics_minus1
+ && sps_pic_height_max_in_luma_sample > 128)
+ skip_bits(gb, len);
+ }
+ if (!sps_independant_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 default and mandatory value of
+ * array_completeness is 1 for arrays of all types of parameter sets, and 0
+ * for all other arrays. When the sample entry name is ‘hev1’, the default
+ * value of array_completeness is 0 for all arrays.
+ */
+ if (nal_type == VVC_VPS_NUT || nal_type == VVC_SPS_NUT ||
+ nal_type == VVC_PPS_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);
+ }
+
+ free(vvcc->ptl.ptl_sublayer_level_present_flag);
+ free(vvcc->ptl.sublayer_level_idc);
+ free(vvcc->ptl.general_sub_profile_idc);
+
+ 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 (!sps_count || sps_count > VVC_MAX_SPS_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_h266_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_h266_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_h266_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 == 1) {
+ /* 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;
+}
new file mode 100644
@@ -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_H266_H
+#define AVFORMAT_H266_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_h266_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_h266_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_H266_H */
new file mode 100644
@@ -0,0 +1,61 @@
+/*
+ * RAW H.266 / VVC video demuxer
+ * Copyright (c) 2020 Nuo Mi <nuomi2021@gmail.com>
+ *
+ * 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/h266.h"
+
+#include "avformat.h"
+#include "rawdec.h"
+
+static int h266_probe(const AVProbeData *p)
+{
+ uint32_t code = -1;
+ int sps = 0, pps = 0, irap = 0;
+ int i;
+
+ for (i = 0; i < p->buf_size - 1; i++) {
+ code = (code << 8) + p->buf[i];
+ if ((code & 0xffffff00) == 0x100) {
+ uint8_t nal2 = p->buf[i + 1];
+ int type = (nal2 & 0xF8) >> 3;
+
+ if (code & 0x80) // forbidden_zero_bit
+ return 0;
+
+ if ((nal2 & 0x7) == 0) // nuh_temporal_id_plus1
+ return 0;
+
+ switch (type) {
+ case VVC_SPS_NUT: sps++; break;
+ case VVC_PPS_NUT: pps++; break;
+ case VVC_IDR_N_LP:
+ case VVC_IDR_W_RADL:
+ case VVC_CRA_NUT:
+ case VVC_GDR_NUT: irap++; break;
+ }
+ }
+ }
+
+ if (sps && pps && irap)
+ return AVPROBE_SCORE_EXTENSION + 1; // 1 more than .mpg
+ return 0;
+}
+
+FF_DEF_RAWVIDEO_DEMUXER(h266, "raw H.266/VVC video", h266_probe, "h266,266,vvc", AV_CODEC_ID_VVC)