[FFmpeg-trac] #5937(avcodec:new): Flac decoding - sample/frame number mismatch in adjacent frames
FFmpeg
trac at avcodec.org
Thu Nov 10 14:37:00 EET 2016
#5937: Flac decoding - sample/frame number mismatch in adjacent frames
---------------------------------+--------------------------------------
Reporter: q3cpma | Type: defect
Status: new | Priority: normal
Component: avcodec | Version: git-master
Keywords: flac | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
---------------------------------+--------------------------------------
Summary of the bug:
sample/frame number mismatch in adjacent frames
This apparently recurring error is still appearing with latest master, so
I thought I'd make a report. There's no discernable problem in the sound
itself, but this error appears randomly when decoding flac files.
Note that flac -t (flac 1.3.1) doesn't have anything to say about the
problematic files.
How to reproduce:
{{{
~/ffmpeg-git-20161110-64bit-static/ffmpeg -threads 1 -i "11 - Suite en Gm,
FK nv24 - Bourrée, Trio I & II.flac" -c:a pcm_s16le -f null -
ffmpeg version N-82314-g863ebe6-static http://johnvansickle.com/ffmpeg/
Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.1 (Debian 5.4.1-3) 20161019
configuration: --enable-gpl --enable-version3 --enable-static --disable-
debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio
--cc=gcc-5 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-
gray --enable-libass --enable-libebur128 --enable-libfreetype --enable-
libfribidi --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab
--enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-
libzimg
libavutil 55. 36.100 / 55. 36.100
libavcodec 57. 66.101 / 57. 66.101
libavformat 57. 57.100 / 57. 57.100
libavdevice 57. 2.100 / 57. 2.100
libavfilter 6. 66.100 / 6. 66.100
libswscale 4. 3.100 / 4. 3.100
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, flac, from '11 - Suite en Gm, FK nv24 - Bourrée, Trio I &
II.flac':
Metadata:
ALBUM : Divers
REPLAYGAIN_ALBUM_GAIN: -2.28 dB
ARTIST : W.F. Bach
TITLE : Suite en Gm, FK nv24 - Bourrée, Trio I & II
REPLAYGAIN_TRACK_PEAK: 0.7671
REPLAYGAIN_TRACK_GAIN: -2.24 dB
REPLAYGAIN_ALBUM_PEAK: 1.0000
track : 11
TRACKTOTAL : 22
Duration: 00:05:41.40, start: 0.000000, bitrate: 889 kb/s
Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
Side data:
replaygain: track gain - -2.240000, track peak - 0.000018, album
gain - -2.280000, album peak - 0.000023,
Output #0, null, to 'pipe:':
Metadata:
ALBUM : Divers
REPLAYGAIN_ALBUM_GAIN: -2.28 dB
ARTIST : W.F. Bach
TITLE : Suite en Gm, FK nv24 - Bourrée, Trio I & II
REPLAYGAIN_TRACK_PEAK: 0.7671
REPLAYGAIN_TRACK_GAIN: -2.24 dB
REPLAYGAIN_ALBUM_PEAK: 1.0000
track : 11
TRACKTOTAL : 22
encoder : Lavf57.57.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc57.66.101 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[NULL @ 0x57cb700] sample/frame number mismatch in adjacent frames
size=N/A time=00:05:41.40 bitrate=N/A speed= 585x
video:0kB audio:58811kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5937>
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