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authorJames Almer <jamrial@gmail.com>2024-02-15 19:38:38 -0300
committerJames Almer <jamrial@gmail.com>2024-02-20 11:24:19 -0300
commitfe637161dbe64cccae98ca20c193ef25bebca02e (patch)
tree997d41a2aa37292b063c5ee2a8bf4b6be0e970da /libavformat/mov.c
parent9ba327e70fb60c26f2c55c85cfee7fbcbb7ef61e (diff)
downloadffmpeg-fe637161dbe64cccae98ca20c193ef25bebca02e.tar.gz
avformat/mov: add support for Immersive Audio Model and Formats in ISOBMFF
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavformat/mov.c')
-rw-r--r--libavformat/mov.c302
1 files changed, 286 insertions, 16 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 6f6513e05d..3a733aae9c 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -58,6 +58,8 @@
#include "internal.h"
#include "avio_internal.h"
#include "demux.h"
+#include "iamf_parse.h"
+#include "iamf_reader.h"
#include "dovi_isom.h"
#include "riff.h"
#include "isom.h"
@@ -212,6 +214,7 @@ static int mov_read_covr(MOVContext *c, AVIOContext *pb, int type, int len)
}
st = c->fc->streams[c->fc->nb_streams - 1];
st->priv_data = sc;
+ sc->id = st->id;
sc->refcount = 1;
if (st->attached_pic.size >= 8 && id != AV_CODEC_ID_BMP) {
@@ -836,6 +839,183 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
return 0;
}
+static int mov_read_iacb(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+ AVStream *st;
+ MOVStreamContext *sc;
+ FFIOContext b;
+ AVIOContext *descriptor_pb;
+ AVDictionary *metadata;
+ IAMFContext *iamf;
+ int64_t start_time, duration;
+ unsigned descriptors_size;
+ int nb_frames, disposition;
+ int version, ret;
+
+ if (atom.size < 5)
+ return AVERROR_INVALIDDATA;
+
+ if (c->fc->nb_streams < 1)
+ return 0;
+
+ version = avio_r8(pb);
+ if (version != 1) {
+ av_log(c->fc, AV_LOG_ERROR, "%s configurationVersion %d",
+ version < 1 ? "invalid" : "unsupported", version);
+ return AVERROR_INVALIDDATA;
+ }
+
+ descriptors_size = ffio_read_leb(pb);
+ if (!descriptors_size || descriptors_size > INT_MAX)
+ return AVERROR_INVALIDDATA;
+
+ st = c->fc->streams[c->fc->nb_streams - 1];
+ sc = st->priv_data;
+
+ sc->iamf = av_mallocz(sizeof(*sc->iamf));
+ if (!sc->iamf)
+ return AVERROR(ENOMEM);
+ iamf = &sc->iamf->iamf;
+
+ st->codecpar->extradata = av_malloc(descriptors_size);
+ if (!st->codecpar->extradata)
+ return AVERROR(ENOMEM);
+ st->codecpar->extradata_size = descriptors_size;
+
+ ret = avio_read(pb, st->codecpar->extradata, descriptors_size);
+ if (ret != descriptors_size)
+ return ret < 0 ? ret : AVERROR_INVALIDDATA;
+
+ ffio_init_read_context(&b, st->codecpar->extradata, descriptors_size);
+ descriptor_pb = &b.pub;
+
+ ret = ff_iamfdec_read_descriptors(iamf, descriptor_pb, descriptors_size, c->fc);
+ if (ret < 0)
+ return ret;
+
+ metadata = st->metadata;
+ st->metadata = NULL;
+ start_time = st->start_time;
+ nb_frames = st->nb_frames;
+ duration = st->duration;
+ disposition = st->disposition;
+
+ for (int i = 0; i < iamf->nb_audio_elements; i++) {
+ IAMFAudioElement *audio_element = iamf->audio_elements[i];
+ AVStreamGroup *stg =
+ avformat_stream_group_create(c->fc, AV_STREAM_GROUP_PARAMS_IAMF_AUDIO_ELEMENT, NULL);
+
+ if (!stg) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ av_iamf_audio_element_free(&stg->params.iamf_audio_element);
+ stg->id = audio_element->audio_element_id;
+ /* Transfer ownership */
+ stg->params.iamf_audio_element = audio_element->element;
+ audio_element->element = NULL;
+
+ for (int j = 0; j < audio_element->nb_substreams; j++) {
+ IAMFSubStream *substream = &audio_element->substreams[j];
+ AVStream *stream;
+
+ if (!i && !j) {
+ if (audio_element->layers[0].substream_count != 1)
+ st->disposition &= ~AV_DISPOSITION_DEFAULT;
+ stream = st;
+ } else
+ stream = avformat_new_stream(c->fc, NULL);
+ if (!stream) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ stream->start_time = start_time;
+ stream->nb_frames = nb_frames;
+ stream->duration = duration;
+ stream->disposition = disposition;
+ if (stream != st) {
+ stream->priv_data = sc;
+ sc->refcount++;
+ }
+
+ if (i || j) {
+ stream->disposition |= AV_DISPOSITION_DEPENDENT;
+ if (audio_element->layers[0].substream_count == 1)
+ stream->disposition &= ~AV_DISPOSITION_DEFAULT;
+ }
+
+ ret = avcodec_parameters_copy(stream->codecpar, substream->codecpar);
+ if (ret < 0)
+ goto fail;
+
+ stream->id = substream->audio_substream_id;
+
+ avpriv_set_pts_info(st, 64, 1, sc->time_scale);
+
+ ret = avformat_stream_group_add_stream(stg, stream);
+ if (ret < 0)
+ goto fail;
+ }
+
+ ret = av_dict_copy(&stg->metadata, metadata, 0);
+ if (ret < 0)
+ goto fail;
+ }
+
+ for (int i = 0; i < iamf->nb_mix_presentations; i++) {
+ IAMFMixPresentation *mix_presentation = iamf->mix_presentations[i];
+ const AVIAMFMixPresentation *mix = mix_presentation->cmix;
+ AVStreamGroup *stg =
+ avformat_stream_group_create(c->fc, AV_STREAM_GROUP_PARAMS_IAMF_MIX_PRESENTATION, NULL);
+
+ if (!stg) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ av_iamf_mix_presentation_free(&stg->params.iamf_mix_presentation);
+ stg->id = mix_presentation->mix_presentation_id;
+ /* Transfer ownership */
+ stg->params.iamf_mix_presentation = mix_presentation->mix;
+ mix_presentation->mix = NULL;
+
+ for (int j = 0; j < mix->nb_submixes; j++) {
+ const AVIAMFSubmix *submix = mix->submixes[j];
+
+ for (int k = 0; k < submix->nb_elements; k++) {
+ const AVIAMFSubmixElement *submix_element = submix->elements[k];
+ const AVStreamGroup *audio_element = NULL;
+
+ for (int l = 0; l < c->fc->nb_stream_groups; l++)
+ if (c->fc->stream_groups[l]->type == AV_STREAM_GROUP_PARAMS_IAMF_AUDIO_ELEMENT &&
+ c->fc->stream_groups[l]->id == submix_element->audio_element_id) {
+ audio_element = c->fc->stream_groups[l];
+ break;
+ }
+ av_assert0(audio_element);
+
+ for (int l = 0; l < audio_element->nb_streams; l++) {
+ ret = avformat_stream_group_add_stream(stg, audio_element->streams[l]);
+ if (ret < 0 && ret != AVERROR(EEXIST))
+ goto fail;
+ }
+ }
+ }
+
+ ret = av_dict_copy(&stg->metadata, metadata, 0);
+ if (ret < 0)
+ goto fail;
+ }
+
+ ret = 0;
+fail:
+ av_dict_free(&metadata);
+
+ return ret;
+}
+
static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
@@ -1331,7 +1511,7 @@ static int64_t get_frag_time(AVFormatContext *s, AVStream *dst_st,
// If the stream is referenced by any sidx, limit the search
// to fragments that referenced this stream in the sidx
if (sc->has_sidx) {
- frag_stream_info = get_frag_stream_info(frag_index, index, dst_st->id);
+ frag_stream_info = get_frag_stream_info(frag_index, index, sc->id);
if (frag_stream_info->sidx_pts != AV_NOPTS_VALUE)
return frag_stream_info->sidx_pts;
if (frag_stream_info->first_tfra_pts != AV_NOPTS_VALUE)
@@ -1342,9 +1522,11 @@ static int64_t get_frag_time(AVFormatContext *s, AVStream *dst_st,
for (i = 0; i < frag_index->item[index].nb_stream_info; i++) {
AVStream *frag_stream = NULL;
frag_stream_info = &frag_index->item[index].stream_info[i];
- for (j = 0; j < s->nb_streams; j++)
- if (s->streams[j]->id == frag_stream_info->id)
+ for (j = 0; j < s->nb_streams; j++) {
+ MOVStreamContext *sc2 = s->streams[j]->priv_data;
+ if (sc2->id == frag_stream_info->id)
frag_stream = s->streams[j];
+ }
if (!frag_stream) {
av_log(s, AV_LOG_WARNING, "No stream matching sidx ID found.\n");
continue;
@@ -1410,12 +1592,13 @@ static int update_frag_index(MOVContext *c, int64_t offset)
for (i = 0; i < c->fc->nb_streams; i++) {
// Avoid building frag index if streams lack track id.
- if (c->fc->streams[i]->id < 0) {
+ MOVStreamContext *sc = c->fc->streams[i]->priv_data;
+ if (sc->id < 0) {
av_free(frag_stream_info);
return AVERROR_INVALIDDATA;
}
- frag_stream_info[i].id = c->fc->streams[i]->id;
+ frag_stream_info[i].id = sc->id;
frag_stream_info[i].sidx_pts = AV_NOPTS_VALUE;
frag_stream_info[i].tfdt_dts = AV_NOPTS_VALUE;
frag_stream_info[i].next_trun_dts = AV_NOPTS_VALUE;
@@ -3210,7 +3393,7 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
"All samples in data stream index:id [%d:%d] have zero "
"duration, stream set to be discarded by default. Override "
"using AVStream->discard or -discard for ffmpeg command.\n",
- st->index, st->id);
+ st->index, sc->id);
st->discard = AVDISCARD_ALL;
}
sc->track_end = duration;
@@ -4590,6 +4773,50 @@ static void fix_timescale(MOVContext *c, MOVStreamContext *sc)
}
}
+static int mov_update_iamf_streams(MOVContext *c, const AVStream *st)
+{
+ const MOVStreamContext *sc = st->priv_data;
+ const IAMFContext *iamf = &sc->iamf->iamf;
+
+ for (int i = 0; i < iamf->nb_audio_elements; i++) {
+ const AVStreamGroup *stg = NULL;
+
+ for (int j = 0; j < c->fc->nb_stream_groups; j++)
+ if (c->fc->stream_groups[j]->id == iamf->audio_elements[i]->audio_element_id)
+ stg = c->fc->stream_groups[j];
+ av_assert0(stg);
+
+ for (int j = 0; j < stg->nb_streams; j++) {
+ const FFStream *sti = cffstream(st);
+ AVStream *out = stg->streams[j];
+ FFStream *out_sti = ffstream(stg->streams[j]);
+
+ out->codecpar->bit_rate = 0;
+
+ if (out == st)
+ continue;
+
+ out->time_base = st->time_base;
+ out->start_time = st->start_time;
+ out->duration = st->duration;
+ out->nb_frames = st->nb_frames;
+ out->discard = st->discard;
+
+ av_assert0(!out_sti->index_entries);
+ out_sti->index_entries = av_malloc(sti->index_entries_allocated_size);
+ if (!out_sti->index_entries)
+ return AVERROR(ENOMEM);
+
+ out_sti->index_entries_allocated_size = sti->index_entries_allocated_size;
+ out_sti->nb_index_entries = sti->nb_index_entries;
+ out_sti->skip_samples = sti->skip_samples;
+ memcpy(out_sti->index_entries, sti->index_entries, sti->index_entries_allocated_size);
+ }
+ }
+
+ return 0;
+}
+
static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
@@ -4670,6 +4897,12 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
mov_build_index(c, st);
+ if (sc->iamf) {
+ ret = mov_update_iamf_streams(c, st);
+ if (ret < 0)
+ return ret;
+ }
+
if (sc->dref_id-1 < sc->drefs_count && sc->drefs[sc->dref_id-1].path) {
MOVDref *dref = &sc->drefs[sc->dref_id - 1];
if (c->enable_drefs) {
@@ -4902,6 +5135,7 @@ static int heif_add_stream(MOVContext *c, HEIFItem *item)
st->priv_data = sc;
st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
st->codecpar->codec_id = mov_codec_id(st, item->type);
+ sc->id = st->id;
sc->ffindex = st->index;
c->trak_index = st->index;
st->avg_frame_rate.num = st->avg_frame_rate.den = 1;
@@ -5000,6 +5234,7 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_rb32(pb); /* modification time */
}
st->id = (int)avio_rb32(pb); /* track id (NOT 0 !)*/
+ sc->id = st->id;
avio_rb32(pb); /* reserved */
/* highlevel (considering edits) duration in movie timebase */
@@ -5174,7 +5409,8 @@ static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
int64_t base_media_decode_time;
for (i = 0; i < c->fc->nb_streams; i++) {
- if (c->fc->streams[i]->id == frag->track_id) {
+ sc = c->fc->streams[i]->priv_data;
+ if (sc->id == frag->track_id) {
st = c->fc->streams[i];
break;
}
@@ -5227,7 +5463,8 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
}
for (i = 0; i < c->fc->nb_streams; i++) {
- if (c->fc->streams[i]->id == frag->track_id) {
+ sc = c->fc->streams[i]->priv_data;
+ if (sc->id == frag->track_id) {
st = c->fc->streams[i];
sti = ffstream(st);
break;
@@ -5530,7 +5767,8 @@ static int mov_read_sidx(MOVContext *c, AVIOContext *pb, MOVAtom atom)
track_id = avio_rb32(pb); // Reference ID
for (i = 0; i < c->fc->nb_streams; i++) {
- if (c->fc->streams[i]->id == track_id) {
+ sc = c->fc->streams[i]->priv_data;
+ if (sc->id == track_id) {
st = c->fc->streams[i];
break;
}
@@ -6447,7 +6685,8 @@ static int get_current_encryption_info(MOVContext *c, MOVEncryptionIndex **encry
frag_stream_info = get_current_frag_stream_info(&c->frag_index);
if (frag_stream_info) {
for (i = 0; i < c->fc->nb_streams; i++) {
- if (c->fc->streams[i]->id == frag_stream_info->id) {
+ *sc = c->fc->streams[i]->priv_data;
+ if ((*sc)->id == frag_stream_info->id) {
st = c->fc->streams[i];
break;
}
@@ -7391,7 +7630,7 @@ static int cenc_filter(MOVContext *mov, AVStream* st, MOVStreamContext *sc, AVPa
AVEncryptionInfo *encrypted_sample;
int encrypted_index, ret;
- frag_stream_info = get_frag_stream_info_from_pkt(&mov->frag_index, pkt, st->id);
+ frag_stream_info = get_frag_stream_info_from_pkt(&mov->frag_index, pkt, sc->id);
encrypted_index = current_index;
encryption_index = NULL;
if (frag_stream_info) {
@@ -8194,6 +8433,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
{ MKTAG('i','p','r','p'), mov_read_iprp },
{ MKTAG('i','i','n','f'), mov_read_iinf },
{ MKTAG('a','m','v','e'), mov_read_amve }, /* ambient viewing environment box */
+{ MKTAG('i','a','c','b'), mov_read_iacb },
{ 0, NULL }
};
@@ -8425,11 +8665,13 @@ static void mov_read_chapters(AVFormatContext *s)
AVStream *st = NULL;
FFStream *sti = NULL;
chapter_track = mov->chapter_tracks[j];
- for (i = 0; i < s->nb_streams; i++)
- if (s->streams[i]->id == chapter_track) {
+ for (i = 0; i < s->nb_streams; i++) {
+ sc = mov->fc->streams[i]->priv_data;
+ if (sc->id == chapter_track) {
st = s->streams[i];
break;
}
+ }
if (!st) {
av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
continue;
@@ -8662,6 +8904,10 @@ static void mov_free_stream_context(AVFormatContext *s, AVStream *st)
av_freep(&sc->mastering);
av_freep(&sc->coll);
av_freep(&sc->ambient);
+
+ if (sc->iamf)
+ ff_iamf_read_deinit(sc->iamf);
+ av_freep(&sc->iamf);
}
static int mov_read_close(AVFormatContext *s)
@@ -8916,9 +9162,11 @@ static int mov_read_header(AVFormatContext *s)
AVDictionaryEntry *tcr;
int tmcd_st_id = -1;
- for (j = 0; j < s->nb_streams; j++)
- if (s->streams[j]->id == sc->timecode_track)
+ for (j = 0; j < s->nb_streams; j++) {
+ MOVStreamContext *sc2 = s->streams[j]->priv_data;
+ if (sc2->id == sc->timecode_track)
tmcd_st_id = j;
+ }
if (tmcd_st_id < 0 || tmcd_st_id == i)
continue;
@@ -9298,7 +9546,29 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
if (st->codecpar->codec_id == AV_CODEC_ID_EIA_608 && sample->size > 8)
ret = get_eia608_packet(sc->pb, pkt, sample->size);
- else
+ else if (sc->iamf) {
+ int64_t pts, dts, pos, duration;
+ int flags, size = sample->size;
+ ret = mov_finalize_packet(s, st, sample, current_index, pkt);
+ pts = pkt->pts; dts = pkt->dts;
+ pos = pkt->pos; flags = pkt->flags;
+ duration = pkt->duration;
+ while (!ret && size > 0) {
+ ret = ff_iamf_read_packet(s, sc->iamf, sc->pb, size, pkt);
+ if (ret < 0) {
+ if (should_retry(sc->pb, ret))
+ mov_current_sample_dec(sc);
+ return ret;
+ }
+ size -= ret;
+ pkt->pts = pts; pkt->dts = dts;
+ pkt->pos = pos; pkt->flags |= flags;
+ pkt->duration = duration;
+ ret = ff_buffer_packet(s, pkt);
+ }
+ if (!ret)
+ return FFERROR_REDO;
+ } else
ret = av_get_packet(sc->pb, pkt, sample->size);
if (ret < 0) {
if (should_retry(sc->pb, ret)) {