diff options
| author | Jacob Trimble <modmaker-at-google.com@ffmpeg.org> | 2017-07-27 10:34:32 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-18 03:02:11 +0200 |
| commit | f4544163b27615ecfff1b42d6acdb3672ac92399 (patch) | |
| tree | 0c754d94e0210d8651436a1378ec8c092d8b3511 /libavformat | |
| parent | 7fb4b0368de18fc150e72a9190a4c87827d2d9d2 (diff) | |
| download | ffmpeg-f4544163b27615ecfff1b42d6acdb3672ac92399.tar.gz | |
libavformat/mov: Fix inserting frames before current_frame.
When using streaming input, it may be possible to see frames that appear
before the current_frame. When these frames are inserted into the
index, the current_frame needs to be updated so it is still pointing
at the same frame.
Signed-off-by: Jacob Trimble <modmaker@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/mov.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index c02caf6719..522ce60c2d 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -4262,7 +4262,7 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) int64_t dts; int data_offset = 0; unsigned entries, first_sample_flags = frag->flags; - int flags, distance, i, err; + int flags, distance, i, err, old_nb_index_entries; for (i = 0; i < c->fc->nb_streams; i++) { if (c->fc->streams[i]->id == frag->track_id) { @@ -4355,13 +4355,19 @@ static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom) MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES)); if (keyframe) distance = 0; + old_nb_index_entries = st->nb_index_entries; err = av_add_index_entry(st, offset, dts, sample_size, distance, keyframe ? AVINDEX_KEYFRAME : 0); if (err < 0) { av_log(c->fc, AV_LOG_ERROR, "Failed to add index entry\n"); + } else if (err <= sc->current_sample && err + 1 != st->nb_index_entries && + st->nb_index_entries != old_nb_index_entries) { + // if we inserted a new item before the current sample, move the + // counter ahead so it is still pointing to the same sample. + sc->current_sample++; } - av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %u, offset %"PRIx64", dts %"PRId64", " - "size %u, distance %d, keyframe %d\n", st->index, sc->sample_count+i, + av_log(c->fc, AV_LOG_TRACE, "AVIndex stream %d, sample %d, offset %"PRIx64", dts %"PRId64", " + "size %u, distance %d, keyframe %d\n", st->index, err, offset, dts, sample_size, distance, keyframe); distance++; dts += sample_duration; |