[FFmpeg-devel] [PATCH v24 6/9] avformat/mov_muxer: Extended MOV muxer to handle EVC video content
Dawid Kozinski
d.kozinski at samsung.com
Mon Jun 12 15:30:27 EEST 2023
- Changes in mov_write_video_tag function to handle EVC elementary stream
- Provided structure EVCDecoderConfigurationRecord that specifies the decoder configuration information for ISO/IEC 23094-1 video content
Signed-off-by: Dawid Kozinski <d.kozinski at samsung.com>
---
libavformat/Makefile | 2 +-
libavformat/evc.c | 422 ++++++++++++++++++++++++++++++++++++++++
libavformat/evc.h | 44 +++++
libavformat/isom_tags.c | 2 +
libavformat/movenc.c | 33 ++++
5 files changed, 502 insertions(+), 1 deletion(-)
create mode 100644 libavformat/evc.c
create mode 100644 libavformat/evc.h
diff --git a/libavformat/Makefile b/libavformat/Makefile
index 6e4231fda2..d3503196e3 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -364,7 +364,7 @@ OBJS-$(CONFIG_MOV_DEMUXER) += mov.o mov_chan.o mov_esds.o \
OBJS-$(CONFIG_MOV_MUXER) += movenc.o av1.o avc.o hevc.o vpcc.o \
movenchint.o mov_chan.o rtp.o \
movenccenc.o movenc_ttml.o rawutils.o \
- dovi_isom.o
+ dovi_isom.o evc.o
OBJS-$(CONFIG_MP2_MUXER) += rawenc.o
OBJS-$(CONFIG_MP3_DEMUXER) += mp3dec.o replaygain.o
OBJS-$(CONFIG_MP3_MUXER) += mp3enc.o rawenc.o id3v2enc.o
diff --git a/libavformat/evc.c b/libavformat/evc.c
new file mode 100644
index 0000000000..431cb107e3
--- /dev/null
+++ b/libavformat/evc.c
@@ -0,0 +1,422 @@
+/*
+ * EVC helper functions for muxers
+ * Copyright (c) 2022 Dawid Kozinski <d.kozinski at samsung.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 "libavutil/intreadwrite.h"
+#include "libavcodec/get_bits.h"
+#include "libavcodec/golomb.h"
+#include "libavcodec/evc.h"
+#include "libavcodec/evc_parse.h"
+#include "avformat.h"
+#include "avio.h"
+#include "evc.h"
+#include "avio_internal.h"
+
+// The length field that indicates the length in bytes of the following NAL unit is configured to be of 4 bytes
+#define EVC_NALU_LENGTH_PREFIX_SIZE (4) /* byte */
+#define EVC_NALU_HEADER_SIZE (2) /* byte */
+
+// @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.1
+enum {
+ SPS_INDEX,
+ PPS_INDEX,
+ APS_INDEX,
+ SEI_INDEX,
+ NB_ARRAYS
+};
+
+// The sturcture reflects SPS RBSP(raw byte sequence payload) layout
+// @see ISO_IEC_23094-1 section 7.3.2.1
+//
+// The following descriptors specify the parsing process of each element
+// u(n) - unsigned integer using n bits
+// ue(v) - unsigned integer 0-th order Exp_Golomb-coded syntax element with the left bit first
+typedef struct EVCSPS {
+ int sps_seq_parameter_set_id; // ue(v)
+ int profile_idc; // u(8)
+ int level_idc; // u(8)
+ int toolset_idc_h; // u(32)
+ int toolset_idc_l; // u(32)
+ int chroma_format_idc; // ue(v)
+ int pic_width_in_luma_samples; // ue(v)
+ int pic_height_in_luma_samples; // ue(v)
+ int bit_depth_luma_minus8; // ue(v)
+ int bit_depth_chroma_minus8; // ue(v)
+
+ // @note
+ // Currently the structure does not reflect the entire SPS RBSP layout.
+ // It contains only the fields that are necessary to read from the NAL unit all the values
+ // necessary for the correct initialization of EVCDecoderConfigurationRecord
+
+ // @note
+ // If necessary, add the missing fields to the structure to reflect
+ // the contents of the entire NAL unit of the SPS type
+
+} EVCSPS;
+
+// @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.3
+typedef struct EVCNALUnitArray {
+ uint8_t array_completeness; // when equal to 1 indicates that all NAL units of the given type are in the following array
+ uint8_t NAL_unit_type; // indicates the type of the NAL units in the following array
+ uint16_t numNalus; // indicates the number of NAL units of the indicated type
+ uint16_t *nalUnitLength; // indicates the length in bytes of the NAL unit
+ uint8_t **nalUnit; // contains an SPS, PPS, APS or a SEI NAL unit, as specified in ISO/IEC 23094-1
+} EVCNALUnitArray;
+
+/**
+ * @brief Specifies the decoder configuration information for ISO/IEC 23094-1 video content.
+ * @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.2
+ * Carriage of network abstraction layer (NAL) unit structured video in the ISO base media file format
+ */
+typedef struct EVCDecoderConfigurationRecord {
+ uint8_t configurationVersion; // 8 bits
+ uint8_t profile_idc; // 8 bits
+ uint8_t level_idc; // 8 bits
+ uint32_t toolset_idc_h; // 32 bits
+ uint32_t toolset_idc_l; // 32 bits
+ uint8_t chroma_format_idc; // 2 bits
+ uint8_t bit_depth_luma_minus8; // 3 bits
+ uint8_t bit_depth_chroma_minus8; // 3 bits
+ uint16_t pic_width_in_luma_samples; // 16 bits
+ uint16_t pic_height_in_luma_samples; // 16 bits
+ uint8_t reserved; // 6 bits '000000'b
+ uint8_t lengthSizeMinusOne; // 2 bits
+ uint8_t num_of_arrays; // 8 bits
+ EVCNALUnitArray arrays[NB_ARRAYS];
+} EVCDecoderConfigurationRecord;
+
+typedef struct NALU {
+ int offset;
+ uint32_t size;
+} NALU;
+
+typedef struct NALUList {
+ NALU *nalus;
+ unsigned nalus_array_size;
+ unsigned nb_nalus; ///< valid entries in nalus
+} NALUList;
+
+// @see ISO_IEC_23094-1 (7.3.2.1 SPS RBSP syntax)
+static int evcc_parse_sps(const uint8_t *bs, int bs_size, EVCDecoderConfigurationRecord *evcc)
+{
+ GetBitContext gb;
+ int sps_seq_parameter_set_id;
+ EVCSPS sps;
+
+ if (init_get_bits8(&gb, bs, bs_size) < 0)
+ return 0;
+
+ sps.sps_seq_parameter_set_id = get_ue_golomb(&gb);
+
+ if (sps_seq_parameter_set_id >= EVC_MAX_SPS_COUNT)
+ return 0;
+
+ // the Baseline profile is indicated by profile_idc eqal to 0
+ // the Main profile is indicated by profile_idc eqal to 1
+ sps.profile_idc = get_bits(&gb, 8);
+
+ sps.level_idc = get_bits(&gb, 8);
+
+ sps.toolset_idc_h = get_bits(&gb, 32);
+ sps.toolset_idc_l = get_bits(&gb, 32);
+
+ // 0 - monochrome
+ // 1 - 4:2:0
+ // 2 - 4:2:2
+ // 3 - 4:4:4
+ sps.chroma_format_idc = get_ue_golomb(&gb);
+
+ sps.pic_width_in_luma_samples = get_ue_golomb(&gb);
+ sps.pic_height_in_luma_samples = get_ue_golomb(&gb);
+
+ sps.bit_depth_luma_minus8 = get_ue_golomb(&gb);
+ sps.bit_depth_chroma_minus8 = get_ue_golomb(&gb);
+
+ evcc->profile_idc = sps.profile_idc;
+ evcc->level_idc = sps.level_idc;
+ evcc->toolset_idc_h = sps.toolset_idc_h;
+ evcc->toolset_idc_l = sps.toolset_idc_l;
+ evcc->chroma_format_idc = sps.chroma_format_idc;
+ evcc->bit_depth_luma_minus8 = sps.bit_depth_luma_minus8;
+ evcc->bit_depth_chroma_minus8 = sps.bit_depth_chroma_minus8;
+ evcc->pic_width_in_luma_samples = sps.pic_width_in_luma_samples;
+ evcc->pic_height_in_luma_samples = sps.pic_height_in_luma_samples;
+
+ return 0;
+}
+
+// @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.3
+static int evcc_array_add_nal_unit(const uint8_t *nal_buf, uint32_t nal_size,
+ uint8_t nal_type, int ps_array_completeness,
+ EVCNALUnitArray *array)
+{
+ int ret;
+ uint16_t numNalus = array->numNalus;
+
+ ret = av_reallocp_array(&array->nalUnit, numNalus + 1, sizeof(uint8_t *));
+ if (ret < 0)
+ return ret;
+
+ ret = av_reallocp_array(&array->nalUnitLength, numNalus + 1, sizeof(uint16_t));
+ if (ret < 0)
+ return ret;
+
+ array->nalUnit [numNalus] = (uint8_t *)nal_buf;
+ array->nalUnitLength[numNalus] = nal_size;
+ array->NAL_unit_type = nal_type;
+ array->numNalus++;
+
+ /*
+ * When the sample entry name is 'evc1', the default and mandatory value of
+ * array_completeness is 1 for arrays of all types of parameter sets, and 0
+ * for all other arrays.
+ */
+ if (nal_type == EVC_SPS_NUT || nal_type == EVC_PPS_NUT || nal_type == EVC_APS_NUT)
+ array->array_completeness = ps_array_completeness;
+
+ return 0;
+}
+
+static void evcc_init(EVCDecoderConfigurationRecord *evcc)
+{
+ memset(evcc, 0, sizeof(EVCDecoderConfigurationRecord));
+ evcc->configurationVersion = 1;
+ evcc->lengthSizeMinusOne = 3; // 4 bytes
+}
+
+static void evcc_close(EVCDecoderConfigurationRecord *evcc)
+{
+ for (unsigned i = 0; i < FF_ARRAY_ELEMS(evcc->arrays); i++) {
+ EVCNALUnitArray *const array = &evcc->arrays[i];
+ array->numNalus = 0;
+ av_freep(&array->nalUnit);
+ av_freep(&array->nalUnitLength);
+ }
+}
+
+static int evcc_write(AVIOContext *pb, EVCDecoderConfigurationRecord *evcc)
+{
+ uint16_t sps_count;
+
+ av_log(NULL, AV_LOG_TRACE, "configurationVersion: %"PRIu8"\n",
+ evcc->configurationVersion);
+ av_log(NULL, AV_LOG_TRACE, "profile_idc: %"PRIu8"\n",
+ evcc->profile_idc);
+ av_log(NULL, AV_LOG_TRACE, "level_idc: %"PRIu8"\n",
+ evcc->level_idc);
+ av_log(NULL, AV_LOG_TRACE, "toolset_idc_h: %"PRIu32"\n",
+ evcc->toolset_idc_h);
+ av_log(NULL, AV_LOG_TRACE, "toolset_idc_l: %"PRIu32"\n",
+ evcc->toolset_idc_l);
+ av_log(NULL, AV_LOG_TRACE, "chroma_format_idc: %"PRIu8"\n",
+ evcc->chroma_format_idc);
+ av_log(NULL, AV_LOG_TRACE, "bit_depth_luma_minus8: %"PRIu8"\n",
+ evcc->bit_depth_luma_minus8);
+ av_log(NULL, AV_LOG_TRACE, "bit_depth_chroma_minus8: %"PRIu8"\n",
+ evcc->bit_depth_chroma_minus8);
+ av_log(NULL, AV_LOG_TRACE, "pic_width_in_luma_samples: %"PRIu16"\n",
+ evcc->pic_width_in_luma_samples);
+ av_log(NULL, AV_LOG_TRACE, "pic_height_in_luma_samples: %"PRIu16"\n",
+ evcc->pic_height_in_luma_samples);
+ av_log(NULL, AV_LOG_TRACE, "lengthSizeMinusOne: %"PRIu8"\n",
+ evcc->lengthSizeMinusOne);
+ av_log(NULL, AV_LOG_TRACE, "num_of_arrays: %"PRIu8"\n",
+ evcc->num_of_arrays);
+ for (unsigned i = 0; i < FF_ARRAY_ELEMS(evcc->arrays); i++) {
+ const EVCNALUnitArray *const array = &evcc->arrays[i];
+
+ if(array->numNalus == 0)
+ continue;
+
+ av_log(NULL, AV_LOG_TRACE, "array_completeness[%"PRIu8"]: %"PRIu8"\n",
+ i, array->array_completeness);
+ av_log(NULL, AV_LOG_TRACE, "NAL_unit_type[%"PRIu8"]: %"PRIu8"\n",
+ i, array->NAL_unit_type);
+ av_log(NULL, AV_LOG_TRACE, "numNalus[%"PRIu8"]: %"PRIu16"\n",
+ i, array->numNalus);
+ for ( unsigned j = 0; j < array->numNalus; j++)
+ av_log(NULL, AV_LOG_TRACE,
+ "nalUnitLength[%"PRIu8"][%"PRIu16"]: %"PRIu16"\n",
+ i, j, array->nalUnitLength[j]);
+ }
+
+ /*
+ * We need at least one SPS.
+ */
+ sps_count = evcc->arrays[SPS_INDEX].numNalus;
+ if (!sps_count || sps_count > EVC_MAX_SPS_COUNT)
+ return AVERROR_INVALIDDATA;
+
+ if (!sps_count || sps_count > EVC_MAX_SPS_COUNT)
+ return AVERROR_INVALIDDATA;
+
+ /* unsigned int(8) configurationVersion = 1; */
+ avio_w8(pb, evcc->configurationVersion);
+
+ /* unsigned int(8) profile_idc */
+ avio_w8(pb, evcc->profile_idc);
+
+ /* unsigned int(8) profile_idc */
+ avio_w8(pb, evcc->level_idc);
+
+ /* unsigned int(32) toolset_idc_h */
+ avio_wb32(pb, evcc->toolset_idc_h);
+
+ /* unsigned int(32) toolset_idc_l */
+ avio_wb32(pb, evcc->toolset_idc_l);
+
+ /*
+ * unsigned int(2) chroma_format_idc;
+ * unsigned int(3) bit_depth_luma_minus8;
+ * unsigned int(3) bit_depth_chroma_minus8;
+ */
+ avio_w8(pb, evcc->chroma_format_idc << 6 |
+ evcc->bit_depth_luma_minus8 << 3 |
+ evcc->bit_depth_chroma_minus8);
+
+ /* unsigned int(16) pic_width_in_luma_samples; */
+ avio_wb16(pb, evcc->pic_width_in_luma_samples);
+
+ /* unsigned int(16) pic_width_in_luma_samples; */
+ avio_wb16(pb, evcc->pic_height_in_luma_samples);
+
+ /*
+ * bit(6) reserved = '111111'b;
+ * unsigned int(2) chromaFormat;
+ */
+ avio_w8(pb, evcc->lengthSizeMinusOne | 0xfc);
+
+ /* unsigned int(8) numOfArrays; */
+ avio_w8(pb, evcc->num_of_arrays);
+
+ for (unsigned i = 0; i < FF_ARRAY_ELEMS(evcc->arrays); i++) {
+ const EVCNALUnitArray *const array = &evcc->arrays[i];
+
+ if (!array->numNalus)
+ continue;
+
+ /*
+ * bit(1) array_completeness;
+ * unsigned int(1) reserved = 0;
+ * unsigned int(6) NAL_unit_type;
+ */
+ avio_w8(pb, array->array_completeness << 7 |
+ array->NAL_unit_type & 0x3f);
+
+ /* unsigned int(16) numNalus; */
+ avio_wb16(pb, array->numNalus);
+
+ for (unsigned j = 0; j < array->numNalus; j++) {
+ /* unsigned int(16) nalUnitLength; */
+ avio_wb16(pb, array->nalUnitLength[j]);
+
+ /* bit(8*nalUnitLength) nalUnit; */
+ avio_write(pb, array->nalUnit[j],
+ array->nalUnitLength[j]);
+ }
+ }
+
+ return 0;
+}
+
+int ff_isom_write_evcc(AVIOContext *pb, const uint8_t *data,
+ int size, int ps_array_completeness)
+{
+ EVCDecoderConfigurationRecord evcc;
+ int nalu_type;
+ size_t nalu_size;
+ int bytes_to_read = size;
+ unsigned array_index;
+
+ int ret = 0;
+
+ if (size < 8) {
+ /* We can't write a valid evcC from the provided data */
+ return AVERROR_INVALIDDATA;
+ } else if (*data == 1) {
+ /* Data is already evcC-formatted */
+ avio_write(pb, data, size);
+ return 0;
+ }
+
+ evcc_init(&evcc);
+
+ while (bytes_to_read > EVC_NALU_LENGTH_PREFIX_SIZE) {
+ nalu_size = ff_evc_read_nal_unit_length(data, EVC_NALU_LENGTH_PREFIX_SIZE, pb);
+ if (nalu_size == 0) break;
+
+ data += EVC_NALU_LENGTH_PREFIX_SIZE;
+ bytes_to_read -= EVC_NALU_LENGTH_PREFIX_SIZE;
+
+ if (bytes_to_read < nalu_size) break;
+
+ nalu_type = ff_evc_get_nalu_type(data, bytes_to_read, pb);
+
+ // @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.3
+ // NAL_unit_type indicates the type of the NAL units in the following array (which shall be all of that type);
+ // - it takes a value as defined in ISO/IEC 23094-1;
+ // - it is restricted to take one of the values indicating a SPS, PPS, APS, or SEI NAL unit.
+ switch (nalu_type) {
+ case EVC_SPS_NUT:
+ array_index = SPS_INDEX;
+ break;
+ case EVC_PPS_NUT:
+ array_index = PPS_INDEX;
+ break;
+ case EVC_APS_NUT:
+ array_index = APS_INDEX;
+ break;
+ case EVC_SEI_NUT:
+ array_index = SEI_INDEX;
+ break;
+ default:
+ array_index = -1;
+ break;
+ }
+
+ if( (array_index == SPS_INDEX) ||
+ (array_index == PPS_INDEX) ||
+ (array_index == APS_INDEX) ||
+ (array_index == SEI_INDEX) ) {
+
+ ret = evcc_array_add_nal_unit(data, nalu_size, nalu_type, ps_array_completeness, &(evcc.arrays[array_index]));
+
+ if (ret < 0)
+ goto end;
+ if (evcc.arrays[array_index].numNalus == 1)
+ evcc.num_of_arrays++;
+
+ if(nalu_type == EVC_SPS_NUT) {
+ ret = evcc_parse_sps(data, nalu_size, &evcc);
+ if (ret < 0)
+ goto end;
+ }
+ }
+
+ data += nalu_size;
+ bytes_to_read -= nalu_size;
+ }
+
+ ret = evcc_write(pb, &evcc);
+
+end:
+ evcc_close(&evcc);
+ return ret;
+}
diff --git a/libavformat/evc.h b/libavformat/evc.h
new file mode 100644
index 0000000000..db56275fd8
--- /dev/null
+++ b/libavformat/evc.h
@@ -0,0 +1,44 @@
+/*
+ * EVC helper functions for muxers
+ * Copyright (c) 2022 Dawid Kozinski <d.kozinski at samsung.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
+ */
+
+#ifndef AVFORMAT_EVC_H
+#define AVFORMAT_EVC_H
+
+#include <stdint.h>
+#include "libavutil/rational.h"
+#include "avio.h"
+
+
+
+/**
+ * Writes EVC sample metadata to the provided AVIOContext.
+ *
+ * @param pb pointer to the AVIOContext where the evc sample metadata shall be written
+ * @param buf input data buffer
+ * @param size size in bytes of the input data buffer
+ * @param ps_array_completeness @see ISO/IEC 14496-15:2021 Coding of audio-visual objects - Part 15: section 12.3.3.3
+ *
+ * @return 0 in case of success, a negative error code in case of failure
+ */
+int ff_isom_write_evcc(AVIOContext *pb, const uint8_t *data,
+ int size, int ps_array_completeness);
+
+#endif // AVFORMAT_EVC_H
diff --git a/libavformat/isom_tags.c b/libavformat/isom_tags.c
index 86c7272525..2a29823b2e 100644
--- a/libavformat/isom_tags.c
+++ b/libavformat/isom_tags.c
@@ -147,6 +147,8 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
{ AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', '1') }, /* AVC-based Dolby Vision derived from avc1 */
{ AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', 'v') }, /* AVC-based Dolby Vision derived from avc3 */
+ { AV_CODEC_ID_EVC, MKTAG('e', 'v', 'c', '1') }, /* EVC/MPEG-5 */
+
{ AV_CODEC_ID_VP8, MKTAG('v', 'p', '0', '8') }, /* VP8 */
{ AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') }, /* VP9 */
{ AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') }, /* AV1 */
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index a9c8e104f0..f1cc80b1b3 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -35,6 +35,7 @@
#include "isom.h"
#include "av1.h"
#include "avc.h"
+#include "evc.h"
#include "libavcodec/ac3_parser_internal.h"
#include "libavcodec/dnxhddata.h"
#include "libavcodec/flac.h"
@@ -1455,6 +1456,21 @@ static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
return update_size(pb, pos);
}
+static int mov_write_evcc_tag(AVIOContext *pb, MOVTrack *track)
+{
+ int64_t pos = avio_tell(pb);
+
+ avio_wb32(pb, 0);
+ ffio_wfourcc(pb, "evcC");
+
+ if (track->tag == MKTAG('e','v','c','1'))
+ ff_isom_write_evcc(pb, track->vos_data, track->vos_len, 1);
+ else
+ ff_isom_write_evcc(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)
{
@@ -1704,6 +1720,16 @@ static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
return tag;
}
+static int mov_get_evc_codec_tag(AVFormatContext *s, MOVTrack *track)
+{
+ int tag = track->par->codec_tag;
+
+ if (!tag)
+ tag = MKTAG('e', 'v', 'c', '1');
+
+ return tag;
+}
+
static const struct {
enum AVPixelFormat pix_fmt;
uint32_t tag;
@@ -1785,6 +1811,8 @@ static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
else if (track->par->codec_id == AV_CODEC_ID_H264)
tag = mov_get_h264_codec_tag(s, track);
+ else if (track->par->codec_id == AV_CODEC_ID_EVC)
+ tag = mov_get_evc_codec_tag(s, track);
else if (track->par->codec_id == AV_CODEC_ID_DNXHD)
tag = mov_get_dnxhd_codec_tag(s, track);
else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) {
@@ -2352,6 +2380,9 @@ static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContex
mov_write_avcc_tag(pb, track);
if (track->mode == MODE_IPOD)
mov_write_uuid_tag_ipod(pb);
+ }
+ else if (track->par->codec_id ==AV_CODEC_ID_EVC) {
+ mov_write_evcc_tag(pb, track);
} else if (track->par->codec_id == AV_CODEC_ID_VP9) {
mov_write_vpcc_tag(mov->fc, pb, track);
} else if (track->par->codec_id == AV_CODEC_ID_AV1) {
@@ -6126,6 +6157,7 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
par->codec_id == AV_CODEC_ID_H264 ||
par->codec_id == AV_CODEC_ID_HEVC ||
par->codec_id == AV_CODEC_ID_VP9 ||
+ par->codec_id == AV_CODEC_ID_EVC ||
par->codec_id == AV_CODEC_ID_TRUEHD) && !trk->vos_len &&
!TAG_IS_AVCI(trk->tag)) {
/* copy frame to create needed atoms */
@@ -7785,6 +7817,7 @@ static const AVCodecTag codec_mp4_tags[] = {
{ AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
{ AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') },
{ AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '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') },
{ AV_CODEC_ID_MJPEG, MKTAG('m', 'p', '4', 'v') },
--
2.25.1
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