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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00

lavf/mov.c: Fallback to finding non-keyframe in fix_index, if keyframe search fails.

Signed-off-by: Sasi Inguva <isasi@google.com>
Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Sasi Inguva 2016-11-09 10:51:13 -08:00 committed by Michael Niedermayer
parent bd6fa80d56
commit c8dc11bb9e
3 changed files with 155 additions and 12 deletions

View File

@ -2822,16 +2822,17 @@ static int get_edit_list_entry(MOVContext *mov,
}
/**
* Find the closest previous keyframe to the timestamp, in e_old index
* entries.
* Find the closest previous frame to the timestamp, in e_old index
* entries. Searching for just any frame / just key frames can be controlled by
* last argument 'flag'.
* Returns the index of the entry in st->index_entries if successful,
* else returns -1.
*/
static int64_t find_prev_closest_keyframe_index(AVStream *st,
AVIndexEntry *e_old,
int nb_old,
int64_t timestamp,
int flag)
static int64_t find_prev_closest_index(AVStream *st,
AVIndexEntry *e_old,
int nb_old,
int64_t timestamp,
int flag)
{
AVIndexEntry *e_keep = st->index_entries;
int nb_keep = st->nb_index_entries;
@ -3048,10 +3049,21 @@ static void mov_fix_index(MOVContext *mov, AVStream *st)
search_timestamp = FFMAX(search_timestamp - msc->time_scale, e_old[0].timestamp);
}
index = find_prev_closest_keyframe_index(st, e_old, nb_old, search_timestamp, 0);
index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, 0);
if (index == -1) {
av_log(mov->fc, AV_LOG_ERROR, "Missing key frame while reordering index according to edit list\n");
continue;
av_log(mov->fc, AV_LOG_WARNING,
"st: %d edit list: %"PRId64" Missing key frame while searching for timestamp: %"PRId64"\n",
st->index, edit_list_index, search_timestamp);
index = find_prev_closest_index(st, e_old, nb_old, search_timestamp, AVSEEK_FLAG_ANY);
if (index == -1) {
av_log(mov->fc, AV_LOG_WARNING,
"st: %d edit list %"PRId64" Cannot find an index entry before timestamp: %"PRId64".\n"
"Rounding edit list media time to zero.\n",
st->index, edit_list_index, search_timestamp);
index = 0;
edit_list_media_time = 0;
}
}
current = e_old + index;
@ -4443,7 +4455,14 @@ static int mov_read_elst(MOVContext *c, AVIOContext *pb, MOVAtom atom)
}
e->rate = avio_rb32(pb) / 65536.0;
av_log(c->fc, AV_LOG_TRACE, "duration=%"PRId64" time=%"PRId64" rate=%f\n",
e->duration, e->time, e->rate);
e->duration, e->time, e->rate);
if (e->time < 0 && e->time != -1 &&
c->fc->strict_std_compliance >= FF_COMPLIANCE_STRICT) {
av_log(c->fc, AV_LOG_ERROR, "Track %d, edit %d: Invalid edit list media time=%"PRId64"\n",
c->fc->nb_streams-1, i, e->time);
return AVERROR_INVALIDDATA;
}
}
sc->elst_count = i;

View File

@ -6,7 +6,8 @@ FATE_MOV = fate-mov-3elist \
fate-mov-1elist-ends-last-bframe \
fate-mov-2elist-elist1-ends-bframe \
fate-mov-zombie \
fate-mov-aac-2048-priming
fate-mov-aac-2048-priming \
fate-mp4-init-nonkeyframe
FATE_SAMPLES_AVCONV += $(FATE_MOV)
@ -34,3 +35,6 @@ fate-mov-aac-2048-priming: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_packets -
fate-mov-zombie: ffprobe$(PROGSSUF)$(EXESUF)
fate-mov-zombie: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_streams -show_packets -show_frames -bitexact -print_format compact $(TARGET_SAMPLES)/mov/white_zombie_scrunch-part.mov
fate-mp4-init-nonkeyframe: ffprobe$(PROGSSUF)$(EXESUF)
fate-mp4-init-nonkeyframe: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_packets -print_format compact -select_streams v $(TARGET_SAMPLES)/mov/mp4-init-nonkeyframe.mp4

View File

@ -0,0 +1,120 @@
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