[FFmpeg-user] parser not found for codec pcm_s16le, packets or times may be invalid.

[Peter B.]

Sorry for spamming the list, but I've encountered another issue which
could indicate silent problems, I'd like to avoid in a production system:

When transcoding a file with the current git-version of ffmpeg, I
receive warnings that do not appear in earlier versions:

[quote]
[avi @ 0x96ad220] parser not found for codec pcm_s16le, packets or times
may be invalid.
[avi @ 0x96ad220] parser not found for codec ffv1, packets or times may
be invalid.
[/quote]

Running the following command with the old version of ffmpeg (v0.5.2
from Debian Squeeze repositories):
[code]
ffmpeg -i input-ffv1.avi -an -vcodec ffv1 delme.avi
[/code]


Works fine, without warnings:

[quote]
FFmpeg version SVN-r0.5.2-4:0.5.2-6, Copyright (c) 2000-2009 Fabrice
Bellard, et al.
  configuration: --extra-version=4:0.5.2-6 --prefix=/usr
--enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib
--enable-libdirac --enable-libgsm --enable-libopenjpeg
--enable-libschroedinger --enable-libspeex --enable-libtheora
--enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping
--disable-vhook --enable-runtime-cpudetect --enable-gpl
--enable-postproc --enable-swscale --enable-x11grab --enable-libfaad
--enable-libdc1394 --enable-shared --disable-static
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 1 / 52.20. 1
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Oct  5 2010 08:33:07, gcc: 4.4.5
Input #0, avi, from 'input-ffv1.avi':
  Duration: 00:00:41.88, start: 0.000000, bitrate: 52834 kb/s
    Stream #0.0: Video: ffv1, yuv422p, 720x576, 25 tbr, 25 tbn, 25 tbc
    Stream #0.1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Output #0, avi, to 'delme.avi':
    Stream #0.0: Video: ffv1, yuv422p, 720x576, q=2-31, 200 kb/s, 90k
tbn, 25 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
frame= 1047 fps= 17 q=0.0 Lsize=  269237kB time=41.88 bitrate=52664.5kbits/s
video:269206kB audio:0kB global headers:0kB muxing overhead 0.011362%
[/quote]


However, running the same command with the current git-version
(N-35077-g7876f14), contains warnings:

[quote]
ffmpeg version N-35077-g7876f14, Copyright (c) 2000-2011 the FFmpeg
developers
  built on Nov 22 2011 11:38:22 with gcc 4.4.5
  configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-postproc --enable-swscale --enable-avfilter --enable-pthreads
--enable-bzlib --enable-libmp3lame --enable-libvorbis --enable-libxvid
--enable-zlib --enable-libopenjpeg --enable-decoder=png
--enable-encoder=png --enable-libdirac --enable-libschroedinger
  libavutil    51. 26. 0 / 51. 26. 0
  libavcodec   53. 36. 0 / 53. 36. 0
  libavformat  53. 21. 0 / 53. 21. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 49. 0 /  2. 49. 0
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[avi @ 0x96ad220] parser not found for codec pcm_s16le, packets or times
may be invalid.
[avi @ 0x96ad220] parser not found for codec ffv1, packets or times may
be invalid.
Input #0, avi, from 'input-ffv1.avi':
  Metadata:
    encoder         : Lavf52.31.0
  Duration: 00:00:41.88, start: 0.000000, bitrate: 52834 kb/s
    Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p, 720x576, 25
tbr, 25 tbn, 25 tbc
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2
channels, s16, 1536 kb/s
[buffer @ 0x96c2520] w:720 h:576 pixfmt:yuv422p tb:1/1000000 sar:0/1
sws_param:
Output #0, avi, to 'delme.avi':
  Metadata:
    ISFT            : Lavf53.21.0
    Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p, 720x576,
q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (ffv1 -> ffv1)
Press [q] to stop, [?] for help
frame= 1047 fps= 17 q=0.0 Lsize=  269237kB time=00:00:41.88
bitrate=52664.5kbits/s
video:269206kB audio:0kB global headers:0kB muxing overhead 0.011362%
[/quote]


The transcoding itself runs fine, in both cases.

I've tried searching for these warnings on the web, but none of them
referred to as where those warnings might come from.

Thank you for any information,
Pb