Opened 13 years ago
Closed 12 years ago
#1345 closed defect (fixed)
ffmpeg loops tiny flac (av_read_frame duplicates frames?)
Reported by: | uwwint | Owned by: | |
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Priority: | important | Component: | avcodec |
Version: | git-master | Keywords: | flac regression |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description
I have a tiny flac. When I transcode via ffmpeg_g into an mp3 the sound is looped.
./ffmpeg_g -i sinemarker.1.flac test.mp3 ffmpeg version N-40960-ge15f128 Copyright (c) 2000-2012 the FFmpeg developers built on May 23 2012 12:59:16 with gcc 4.4.3 configuration: --enable-nonfree --enable-shared --enable-libmp3lame --prefix=/home/uwe/Dokumente/ffmpeg/ffmpeg.git/installDir libavutil 51. 53.100 / 51. 53.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.100 / 54. 6.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 76.100 / 2. 76.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 Input #0, flac, from 'sinemarker.1.flac': Duration: 00:00:00.50, bitrate: 495 kb/s Stream #0:0: Audio: flac, 44100 Hz, stereo, s16 Output #0, mp3, to 'test.mp3': Metadata: TSSE : Lavf54.6.100 Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16 Stream mapping: Stream #0:0 -> #0:0 (flac -> libmp3lame) Press [q] to stop, [?] for help Multiple frames in a packet from stream 0 DTS 4096, next:592874 st:0 invalid dropping PTS 4096, next:592874 invalid dropping st:0 DTS 8192, next:1185748 st:0 invalid dropping PTS 8192, next:1185748 invalid dropping st:0 DTS 12288, next:1778622 st:0 invalid dropping PTS 12288, next:1778622 invalid dropping st:0 DTS 16384, next:2371496 st:0 invalid dropping PTS 16384, next:2371496 invalid dropping st:0 DTS 20480, next:2964370 st:0 invalid dropping PTS 20480, next:2964370 invalid dropping st:0 [libmp3lame @ 0x13e25c0] Trying to remove 1152 samples, but que empty size= 48kB time=00:00:03.03 bitrate= 129.6kbits/s video:0kB audio:48kB global headers:0kB muxing overhead 0.388540%
Then compare flac with mp3 in audacity/some other program that doesn't use ffmpeg (mplayer doesn't work). The mp3 contains multiple loops of the flac.
Attachments (1)
Change History (3)
by , 13 years ago
Attachment: | sinemarker.1.flac added |
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comment:1 by , 13 years ago
Component: | undetermined → avcodec |
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Keywords: | regression added; tiny loop removed |
Priority: | normal → important |
Reproduced by developer: | set |
Status: | new → open |
Regression since 4b5d472.
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the small flac