From 7e538c947547b04267f0b307b0e7d96a84d558e0 Mon Sep 17 00:00:00 2001 From: Sasi Inguva Date: Wed, 15 Feb 2017 12:07:55 -0800 Subject: lavf/mov.c: Correct keyframe search in edit list to return the very first keyframe/frame with matching timestamp. Fixes ticket#5904 Signed-off-by: Sasi Inguva Signed-off-by: Michael Niedermayer --- libavformat/mov.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'libavformat/mov.c') diff --git a/libavformat/mov.c b/libavformat/mov.c index b5181775e7..2a7cbfe142 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2847,11 +2847,23 @@ static int64_t find_prev_closest_index(AVStream *st, AVIndexEntry *e_keep = st->index_entries; int nb_keep = st->nb_index_entries; int64_t found = -1; + int64_t i = 0; st->index_entries = e_old; st->nb_index_entries = nb_old; found = av_index_search_timestamp(st, timestamp, flag | AVSEEK_FLAG_BACKWARD); + // Keep going backwards in the index entries until the timestamp is the same. + if (found >= 0) { + for (i = found; i > 0 && e_old[i].timestamp == e_old[i - 1].timestamp; + i--) { + if ((flag & AVSEEK_FLAG_ANY) || + (e_old[i - 1].flags & AVINDEX_KEYFRAME)) { + found = i - 1; + } + } + } + /* restore AVStream state*/ st->index_entries = e_keep; st->nb_index_entries = nb_keep; -- cgit v1.2.3