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authorMichael Niedermayer <michaelni@gmx.at>2013-10-25 19:35:55 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-10-25 19:37:03 +0200
commitba8716df7fb541fb690d1a898cda0e12f9011faf (patch)
tree1baa1430d871c4f01685e9d357574c985e1de0b2 /libavformat
parentd04ec6ffc51c525c5af5bbfa45cae2ac0130f75c (diff)
downloadffmpeg-ba8716df7fb541fb690d1a898cda0e12f9011faf.tar.gz
avformat/mp3dec: perform seek resync in the correct direction
Fixes seeking to the last frame in CBR files Fixes Ticket2773 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/mp3dec.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c
index e09d45a145..30ec7771fd 100644
--- a/libavformat/mp3dec.c
+++ b/libavformat/mp3dec.c
@@ -288,6 +288,7 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
AVStream *st = s->streams[0];
int64_t ret = av_index_search_timestamp(st, timestamp, flags);
int i, j;
+ int dir = (flags&AVSEEK_FLAG_BACKWARD) ? -1 : 1;
if (mp3->is_cbr && st->duration > 0 && mp3->header_filesize > s->data_offset) {
int64_t filesize = avio_size(s->pb);
@@ -317,7 +318,7 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
#define MIN_VALID 3
for(i=0; i<4096; i++) {
- int64_t pos = ie->pos + i;
+ int64_t pos = ie->pos + i*dir;
for(j=0; j<MIN_VALID; j++) {
ret = check(s, pos);
if(ret < 0)
@@ -330,7 +331,7 @@ static int mp3_seek(AVFormatContext *s, int stream_index, int64_t timestamp,
if(j!=MIN_VALID)
i=0;
- ret = avio_seek(s->pb, ie->pos + i, SEEK_SET);
+ ret = avio_seek(s->pb, ie->pos + i*dir, SEEK_SET);
if (ret < 0)
return ret;
ff_update_cur_dts(s, st, ie->timestamp);