diff --git a/doc/demuxers.texi b/doc/demuxers.texi index 2d33b47a56..ca1563abb0 100644 --- a/doc/demuxers.texi +++ b/doc/demuxers.texi @@ -779,6 +779,13 @@ cast to int32 are used to adjust onward dts. Unit is the track time scale. Range is 0 to UINT_MAX. Default is @code{UINT_MAX - 48000*10} which allows upto a 10 second dts correction for 48 kHz audio streams while accommodating 99.9% of @code{uint32} range. + +@item interleaved_read +Interleave packets from multiple tracks at demuxer level. For badly interleaved files, this prevents playback issues +caused by large gaps between packets in different tracks, as MOV/MP4 do not have packet placement requirements. +However, this can cause excessive seeking on very badly interleaved files, due to seeking between tracks, so disabling +it may prevent I/O issues, at the expense of playback. + @end table @subsection Audible AAX diff --git a/libavformat/isom.h b/libavformat/isom.h index 4b1cd42f0f..3d375d7a46 100644 --- a/libavformat/isom.h +++ b/libavformat/isom.h @@ -327,6 +327,7 @@ typedef struct MOVContext { int64_t extent_offset; } *avif_info; int avif_info_size; + int interleaved_read; } MOVContext; int ff_mp4_read_descr_len(AVIOContext *pb); diff --git a/libavformat/mov.c b/libavformat/mov.c index aa1d9e4ccc..93c1f9e929 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -8780,6 +8780,8 @@ static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st) AVIndexEntry *sample = NULL; int64_t best_dts = INT64_MAX; int i; + MOVContext *mov = s->priv_data; + int no_interleave = !mov->interleaved_read || !(s->pb->seekable & AVIO_SEEKABLE_NORMAL); for (i = 0; i < s->nb_streams; i++) { AVStream *avst = s->streams[i]; FFStream *const avsti = ffstream(avst); @@ -8788,7 +8790,7 @@ static AVIndexEntry *mov_find_next_sample(AVFormatContext *s, AVStream **st) AVIndexEntry *current_sample = &avsti->index_entries[msc->current_sample]; int64_t dts = av_rescale(current_sample->timestamp, AV_TIME_BASE, msc->time_scale); av_log(s, AV_LOG_TRACE, "stream %d, sample %d, dts %"PRId64"\n", i, msc->current_sample, dts); - if (!sample || (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && current_sample->pos < sample->pos) || + if (!sample || (no_interleave && current_sample->pos < sample->pos) || ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) && ((msc->pb != s->pb && dts < best_dts) || (msc->pb == s->pb && dts != AV_NOPTS_VALUE && ((FFABS(best_dts - dts) <= AV_TIME_BASE && current_sample->pos < sample->pos) || @@ -9282,6 +9284,7 @@ static const AVOption mov_options[] = { { "enable_drefs", "Enable external track support.", OFFSET(enable_drefs), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS }, { "max_stts_delta", "treat offsets above this value as invalid", OFFSET(max_stts_delta), AV_OPT_TYPE_INT, {.i64 = UINT_MAX-48000*10 }, 0, UINT_MAX, .flags = AV_OPT_FLAG_DECODING_PARAM }, + { "interleaved_read", "Interleave packets from multiple tracks at demuxer level", OFFSET(interleaved_read), AV_OPT_TYPE_BOOL, {.i64 = 1 }, 0, 1, .flags = AV_OPT_FLAG_DECODING_PARAM }, { NULL }, }; diff --git a/libavformat/version.h b/libavformat/version.h index cb67e0a1f8..e41362ac9d 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -32,7 +32,7 @@ #include "version_major.h" #define LIBAVFORMAT_VERSION_MINOR 12 -#define LIBAVFORMAT_VERSION_MICRO 100 +#define LIBAVFORMAT_VERSION_MICRO 101 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ LIBAVFORMAT_VERSION_MINOR, \