[FFmpeg-trac] #1663(undetermined:new): Multiple named pipes don't work
FFmpeg
trac at avcodec.org
Sun Aug 19 20:46:40 CEST 2012
#1663: Multiple named pipes don't work
-------------------------------------+-------------------------------------
Reporter: burek | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by burek):
Btw, by "it doesn't work" I mean everything hangs, just like ffmpeg in
second shell is waiting for something, and it doesn't read both inputs in
parallel.
The first ffmpeg shows that it read the input properly and is just about
to create outputs:
{{{
ffmpeg version N-43235-g2db097c Copyright (c) 2000-2012 the FFmpeg
developers
built on Aug 5 2012 11:33:55 with gcc 4.6 (Debian 4.6.3-1)
configuration: --enable-static --enable-shared --enable-gpl --enable-
nonfree --enable-postproc --enable-libx264 --enable-libaacplus
libavutil 51. 66.101 / 51. 66.101
libavcodec 54. 49.100 / 54. 49.100
libavformat 54. 22.100 / 54. 22.100
libavdevice 54. 2.100 / 54. 2.100
libavfilter 3. 5.102 / 3. 5.102
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
[h264 @ 0xb3e640] reference picture missing during reorder
Last message repeated 3 times
[h264 @ 0xb3e640] Missing reference picture
[h264 @ 0xb3e640] decode_slice_header error
[h264 @ 0xb3e640] concealing 920 DC, 920 AC, 920 MV errors in P frame
Input #0, flv, from '1.flv':
Metadata:
encoder : Lavf54.9.100
Duration: 00:15:02.96, start: 0.000000, bitrate: 88 kb/s
Stream #0:0: Video: h264 (High), yuv420p, 640x360 [SAR 1:1 DAR 16:9],
16.67 tbr, 1k tbn, 2000k tbc
Stream #0:1: Audio: aac, 44100 Hz, stereo, s16
}}}
The second ffmpeg just hangs after the intro text:
{{{
ffmpeg version N-43235-g2db097c Copyright (c) 2000-2012 the FFmpeg
developers
built on Aug 5 2012 11:33:55 with gcc 4.6 (Debian 4.6.3-1)
configuration: --enable-static --enable-shared --enable-gpl --enable-
nonfree --enable-postproc --enable-libx264 --enable-libaacplus
libavutil 51. 66.101 / 51. 66.101
libavcodec 54. 49.100 / 54. 49.100
libavformat 54. 22.100 / 54. 22.100
libavdevice 54. 2.100 / 54. 2.100
libavfilter 3. 5.102 / 3. 5.102
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1663#comment:2>
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