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| author | Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> | 2007-02-05 02:08:57 +0000 |
|---|---|---|
| committer | Panagiotis Issaris <takis.issaris@uhasselt.be> | 2007-02-05 02:08:57 +0000 |
| commit | 9ecf7fada31aac294dee540abb9a8dcf8131d67d (patch) | |
| tree | b5f22dcff25e20abb93bd866d2c9769be2abf158 /libavformat/utils.c | |
| parent | 42572ef53f5199160ecc3e18bb549caece8b26dc (diff) | |
| download | ffmpeg-9ecf7fada31aac294dee540abb9a8dcf8131d67d.tar.gz | |
Fix audio corruption when cutting.
Patch by Wolfram Gloger, wmglo dent dot med dot uni-muenchen dot de.
Originally committed as revision 7818 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/utils.c')
| -rw-r--r-- | libavformat/utils.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 4782159eae..693a8ecd0f 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -1558,7 +1558,7 @@ static void av_estimate_timings_from_bit_rate(AVFormatContext *ic) #define DURATION_MAX_READ_SIZE 250000 /* only usable for MPEG-PS streams */ -static void av_estimate_timings_from_pts(AVFormatContext *ic) +static void av_estimate_timings_from_pts(AVFormatContext *ic, offset_t old_offset) { AVPacket pkt1, *pkt = &pkt1; AVStream *st; @@ -1650,10 +1650,10 @@ static void av_estimate_timings_from_pts(AVFormatContext *ic) fill_all_stream_timings(ic); - url_fseek(&ic->pb, 0, SEEK_SET); + url_fseek(&ic->pb, old_offset, SEEK_SET); } -static void av_estimate_timings(AVFormatContext *ic) +static void av_estimate_timings(AVFormatContext *ic, offset_t old_offset) { int64_t file_size; @@ -1671,7 +1671,7 @@ static void av_estimate_timings(AVFormatContext *ic) !strcmp(ic->iformat->name, "mpegts")) && file_size && !ic->pb.is_streamed) { /* get accurate estimate from the PTSes */ - av_estimate_timings_from_pts(ic); + av_estimate_timings_from_pts(ic, old_offset); } else if (av_has_timings(ic)) { /* at least one components has timings - we use them for all the components */ @@ -1765,10 +1765,12 @@ static int get_std_framerate(int i){ } /** - * Read the beginning of a media file to get stream information. This + * Read packets of a media file to get stream information. This * is useful for file formats with no headers such as MPEG. This - * function also compute the real frame rate in case of mpeg2 repeat + * function also computes the real frame rate in case of mpeg2 repeat * frame mode. + * The logical file position is not changed by this function; + * examined packets may be buffered for later processing. * * @param ic media file handle * @return >=0 if OK. AVERROR_xxx if error. @@ -1783,6 +1785,7 @@ int av_find_stream_info(AVFormatContext *ic) int64_t last_dts[MAX_STREAMS]; int duration_count[MAX_STREAMS]={0}; double duration_error[MAX_STREAMS][MAX_STD_TIMEBASES]={{0}}; //FIXME malloc()? + offset_t old_offset = url_ftell(&ic->pb); for(i=0;i<ic->nb_streams;i++) { st = ic->streams[i]; @@ -1989,7 +1992,7 @@ int av_find_stream_info(AVFormatContext *ic) } } - av_estimate_timings(ic); + av_estimate_timings(ic, old_offset); #if 0 /* correct DTS for b frame streams with no timestamps */ for(i=0;i<ic->nb_streams;i++) { |