id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
1235,ffio_limit does not work correctly with named pipes on OSX (Snow Leopard),ls,,"{{{
$ ffmpeg -f s16le -ac 2 -ar 48000 -i <(ffmpeg -loglevel warning -i camera-raw.mp4 -c:a pcm_s16le -f s16le -ac 2 -ar 48000 -) out.wav

ffmpeg version git-2012-04-19-ab75ad0 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr 19 2012 19:20:02 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
  configuration: --prefix=/homes/lschilli/src/ffmpeg-gar-osx/build --enable-shared --disable-static --enable-gpl --enable-nonfree --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-sram --cpu=core2 --enable-hwaccel=h264_vaapi --enable-hwaccel=mpeg2_vaapi --enable-hwaccel=mpeg4_vaapi --enable-libfaac --disable-ffserver --enable-libfreetype --enable-x11grab
  libavutil      51. 46.100 / 51. 46.100
  libavcodec     54. 14.101 / 54. 14.101
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 70.100 /  2. 70.100
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, s16le, from '/dev/fd/63':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Guessed Channel Layout for  Input Stream #0.0 : stereo
Output #0, wav, to '/tmp/out.wav':
  Metadata:
    encoder         : Lavf54.3.100
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
Press [q] to stop, [?] for help
Truncating packet of size 4096 to 1
[pcm_s16le @ 0x101853e00] invalid PCM packet
Error while decoding stream #0:0
Truncating packet of size 4096 to 1
[pcm_s16le @ 0x101853e00] invalid PCM packet
Error while decoding stream #0:0
Truncating packet of size 4096 to 1
[pcm_s16le @ 0x101853e00] invalid PCM packet
Error while decoding stream #0:0
Truncating packet of size 4096 to 1
[pcm_s16le @ 0x101853e00] invalid PCM packet
[...]
}}}

Removing `size= ffio_limit(s, size);` from `av_get_packet` in `libavformat/utils.c` seems to be a workaround for this problem. On linux  the same command line results in only one of the error messages above.
",defect,closed,normal,avformat,git-master,fixed,,,,,0,0