[FFmpeg-trac] #1570(avdevice:open): libv4l2: error dequeuing buf: Resource temporarily unavailable

FFmpeg trac at avcodec.org
Sun Jul 29 16:00:20 CEST 2012


#1570: libv4l2: error dequeuing buf: Resource temporarily unavailable
-------------------------------------+-------------------------------------
             Reporter:  llarevo      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avdevice
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
  video4linux, video4linux2,         |  Reproduced by developer:  0
  v4l2.c, regression, capture,       |
  analog, tv                         |
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by llarevo):

 The output of the unpatched 0.11.1 with -debug 1 is
 {{{
 /usr/local/bin/ffmpeg -debug 1 -t 300 -f video4linux2 -s vga -r 25 -b
 2000k -i /dev/video0 out-vga-2M-5min.mpg
 ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jul 29 2012 15:53:10 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
   configuration: --prefix=/usr/local --libdir=/usr/local/lib64
 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-gpl --enable-libfaac
 --enable-libgsm --enable-libmp3lame --enable-libtheora --enable-libxvid
 --disable-asm --disable-crystalhd
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Please use -b:a or -b:v, -b is ambiguous
 [video4linux2,v4l2 @ 0x2ecd1e0] [3]Capabilities: 5010015
 [video4linux2,v4l2 @ 0x2ecd1e0] The V4L2 driver using the interlaced
 modeThe V4L2 driver set input_id: 0, input: Television
 [video4linux2,v4l2 @ 0x2ecd1e0] Setting time per frame to 1/25
 [video4linux2,v4l2 @ 0x2ecd1e0] ioctl set time per frame(1/25) failed
 /dev/video0: Input/output error
 }}}
 The output of the patched 0.11.1 with -debug 1 is
 {{{
 /usr/local/bin/ffmpeg -debug 1 -t 300 -f video4linux2 -s vga -r 25 -b
 2000k -i /dev/video0 out-vga-2M-5min.mpg
 ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jul 29 2012 15:57:16 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
   configuration: --prefix=/usr/local --libdir=/usr/local/lib64
 --shlibdir=/usr/local/lib64 --enable-nonfree --enable-gpl --enable-libfaac
 --enable-libgsm --enable-libmp3lame --enable-libtheora --enable-libxvid
 --disable-asm --disable-crystalhd
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Please use -b:a or -b:v, -b is ambiguous
 [video4linux2,v4l2 @ 0x21311e0] [3]Capabilities: 5010015
 [video4linux2,v4l2 @ 0x21311e0] The V4L2 driver using the interlaced
 modeThe V4L2 driver set input_id: 0, input: Television
 ^Cinterrupted
 rfps: 1.000000 0.006400
     Last message repeated 1 times
 rfps: 1.083333 0.007511
     Last message repeated 1 times
 rfps: 1.166667 0.008711
     Last message repeated 1 times
 rfps: 1.250000 0.010000
     Last message repeated 1 times
 rfps: 1.333333 0.011378
     Last message repeated 1 times
 rfps: 1.416667 0.012844
     Last message repeated 1 times
 rfps: 1.500000 0.014400
     Last message repeated 1 times
 rfps: 1.583333 0.016044
     Last message repeated 1 times
 rfps: 1.833333 -4096.000000
     Last message repeated 1 times
 rfps: 1.916667 -2048.000000
     Last message repeated 1 times
 rfps: 2.083333 -2048.000000
     Last message repeated 1 times
 rfps: 2.166667 0.000000
     Last message repeated 1 times
 rfps: 2.333333 -4096.000000
     Last message repeated 1 times
 rfps: 2.416667 -12288.000000
     Last message repeated 1 times
 rfps: 2.500000 -4096.000000
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 rfps: 2.583333 0.000000
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 rfps: 2.666667 -4096.000000
     Last message repeated 1 times
 rfps: 3.000000 0.000000
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 rfps: 3.083333 0.000000
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 rfps: 3.166667 0.000000
     Last message repeated 1 times
 rfps: 3.250000 -4096.000000
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     Last message repeated 1 times
 rfps: 3.500000 0.000000
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 rfps: 3.583333 -4096.000000
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 rfps: 3.750000 -4096.000000
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     Last message repeated 1 times
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     Last message repeated 1 times
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 rfps: 4.416667 -4096.000000
     Last message repeated 1 times
 rfps: 4.500000 0.000000
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 rfps: 4.750000 0.000000
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 rfps: 4.833333 -49152.000000
     Last message repeated 1 times
 rfps: 5.000000 -16384.000000
     Last message repeated 1 times
 rfps: 5.083333 0.000000
     Last message repeated 1 times
 rfps: 5.166667 0.000000
     Last message repeated 1 times
 rfps: 5.250000 0.000000
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 rfps: 5.333333 -16384.000000
     Last message repeated 1 times
 rfps: 5.416667 0.000000
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 rfps: 5.583333 -8192.000000
     Last message repeated 1 times
 rfps: 5.750000 0.000000
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 rfps: 5.916667 0.000000
     Last message repeated 1 times
 rfps: 6.000000 0.000000
 rfps: 6.000000 -16384.000000
 rfps: 6.083333 -16384.000000
     Last message repeated 1 times
 rfps: 6.166667 0.000000
     Last message repeated 1 times
 rfps: 6.250000 -32768.000000
     Last message repeated 1 times
 rfps: 6.333333 0.000000
     Last message repeated 1 times
 rfps: 6.500000 -16384.000000
     Last message repeated 1 times
 rfps: 6.750000 0.000000
     Last message repeated 1 times
 rfps: 6.833333 -16384.000000
     Last message repeated 1 times
 rfps: 7.000000 0.000000
     Last message repeated 1 times
 rfps: 7.166667 -16384.000000
     Last message repeated 1 times
 rfps: 7.250000 -8192.000000
     Last message repeated 1 times
 rfps: 7.416667 -8192.000000
     Last message repeated 1 times
 rfps: 7.500000 -16384.000000
     Last message repeated 1 times
 rfps: 7.833333 0.000000
     Last message repeated 1 times
 rfps: 8.083333 0.000000
     Last message repeated 1 times
 rfps: 8.166667 -32768.000000
     Last message repeated 1 times
 rfps: 8.250000 0.000000
     Last message repeated 1 times
 rfps: 8.333333 0.000000
     Last message repeated 1 times
 rfps: 8.416667 -65536.000000
     Last message repeated 1 times
 rfps: 8.750000 -32768.000000
     Last message repeated 1 times
 rfps: 8.833333 0.000000
     Last message repeated 1 times
 rfps: 9.000000 0.000000
     Last message repeated 1 times
 rfps: 9.250000 -32768.000000
     Last message repeated 1 times
 rfps: 9.416667 -65536.000000
     Last message repeated 1 times
 rfps: 9.500000 -32768.000000
     Last message repeated 1 times
 rfps: 9.833333 -65536.000000
     Last message repeated 1 times
 rfps: 9.916667 -32768.000000
     Last message repeated 1 times
 rfps: 10.000000 -32768.000000
     Last message repeated 1 times
 rfps: 10.166667 0.000000
     Last message repeated 1 times
 rfps: 10.333333 0.000000
     Last message repeated 1 times
 rfps: 10.583333 0.000000
     Last message repeated 1 times
 rfps: 10.666667 0.000000
     Last message repeated 1 times
 rfps: 10.750000 -32768.000000
     Last message repeated 1 times
 rfps: 10.833333 0.000000
     Last message repeated 1 times
 rfps: 10.916667 0.000000
     Last message repeated 1 times
 rfps: 11.166667 -32768.000000
     Last message repeated 1 times
 rfps: 11.250000 -32768.000000
     Last message repeated 1 times
 rfps: 11.416667 -32768.000000
     Last message repeated 1 times
 rfps: 11.500000 0.000000
     Last message repeated 1 times
 rfps: 11.583333 0.000000
     Last message repeated 1 times
 rfps: 11.750000 0.000000
     Last message repeated 1 times
 rfps: 11.833333 0.000000
     Last message repeated 1 times
 rfps: 12.000000 0.000000
 rfps: 12.000000 -65536.000000
 rfps: 12.083333 0.000000
     Last message repeated 1 times
 rfps: 12.166667 -65536.000000
     Last message repeated 1 times
 rfps: 12.333333 0.000000
     Last message repeated 1 times
 rfps: 12.500000 -131072.000000
     Last message repeated 1 times
 rfps: 12.583333 -65536.000000
     Last message repeated 1 times
 rfps: 12.666667 0.000000
     Last message repeated 1 times
 rfps: 12.916667 -65536.000000
     Last message repeated 1 times
 rfps: 13.000000 -65536.000000
     Last message repeated 1 times
 rfps: 13.083333 0.000000
     Last message repeated 1 times
 rfps: 13.416667 -131072.000000
     Last message repeated 1 times
 rfps: 13.500000 0.000000
     Last message repeated 1 times
 rfps: 13.666667 -65536.000000
     Last message repeated 1 times
 rfps: 13.750000 -65536.000000
     Last message repeated 1 times
 rfps: 13.916667 0.000000
     Last message repeated 1 times
 rfps: 14.000000 0.000000
     Last message repeated 1 times
 rfps: 14.083333 -131072.000000
     Last message repeated 1 times
 rfps: 14.250000 -131072.000000
     Last message repeated 1 times
 rfps: 14.333333 -65536.000000
     Last message repeated 1 times
 rfps: 14.416667 -65536.000000
     Last message repeated 1 times
 rfps: 14.500000 -131072.000000
     Last message repeated 1 times
 rfps: 14.583333 0.000000
     Last message repeated 1 times
 rfps: 14.833333 0.000000
     Last message repeated 1 times
 rfps: 14.916667 -131072.000000
     Last message repeated 1 times
 rfps: 15.000000 -65536.000000
     Last message repeated 1 times
 rfps: 15.083333 -65536.000000
     Last message repeated 1 times
 rfps: 15.166667 -131072.000000
     Last message repeated 1 times
 rfps: 15.250000 -65536.000000
     Last message repeated 1 times
 rfps: 15.333333 0.000000
     Last message repeated 1 times
 rfps: 15.416667 0.000000
     Last message repeated 1 times
 rfps: 15.500000 0.000000
     Last message repeated 1 times
 rfps: 15.583333 0.000000
     Last message repeated 1 times
 rfps: 15.666667 0.000000
     Last message repeated 1 times
 rfps: 15.916667 0.000000
     Last message repeated 1 times
 rfps: 16.166667 -65536.000000
     Last message repeated 1 times
 rfps: 16.250000 -65536.000000
     Last message repeated 1 times
 rfps: 16.333333 -65536.000000
     Last message repeated 1 times
 rfps: 16.416667 0.000000
     Last message repeated 1 times
 rfps: 16.500000 -65536.000000
     Last message repeated 1 times
 rfps: 16.666667 -131072.000000
     Last message repeated 1 times
 rfps: 16.750000 -65536.000000
     Last message repeated 1 times
 rfps: 16.833333 -131072.000000
     Last message repeated 1 times
 rfps: 17.083333 -196608.000000
     Last message repeated 1 times
 rfps: 17.166667 0.000000
     Last message repeated 1 times
 rfps: 17.250000 -131072.000000
     Last message repeated 1 times
 rfps: 17.500000 -65536.000000
     Last message repeated 1 times
 rfps: 17.666667 0.000000
     Last message repeated 1 times
 rfps: 17.750000 -131072.000000
     Last message repeated 1 times
 rfps: 17.916667 -131072.000000
     Last message repeated 1 times
 rfps: 18.000000 0.000000
     Last message repeated 1 times
 rfps: 18.083333 -131072.000000
     Last message repeated 1 times
 rfps: 18.500000 -131072.000000
     Last message repeated 1 times
 rfps: 18.583333 0.000000
     Last message repeated 1 times
 rfps: 18.750000 -131072.000000
     Last message repeated 1 times
 rfps: 18.833333 -262144.000000
     Last message repeated 1 times
 rfps: 18.916667 -131072.000000
     Last message repeated 1 times
 rfps: 19.000000 -131072.000000
     Last message repeated 1 times
 rfps: 19.083333 -131072.000000
     Last message repeated 1 times
 rfps: 19.250000 -262144.000000
     Last message repeated 1 times
 rfps: 19.583333 0.000000
     Last message repeated 1 times
 rfps: 19.666667 -262144.000000
     Last message repeated 1 times
 rfps: 19.750000 -131072.000000
     Last message repeated 1 times
 rfps: 19.833333 -131072.000000
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     Last message repeated 1 times
 rfps: 20.000000 -131072.000000
     Last message repeated 1 times
 rfps: 20.250000 0.000000
     Last message repeated 1 times
 rfps: 20.333333 0.000000
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 rfps: 20.416667 -393216.000000
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 rfps: 20.583333 -131072.000000
     Last message repeated 1 times
 rfps: 20.666667 0.000000
     Last message repeated 1 times
 rfps: 20.750000 0.000000
     Last message repeated 1 times
 rfps: 21.083333 -131072.000000
     Last message repeated 1 times
 rfps: 21.166667 -131072.000000
     Last message repeated 1 times
 rfps: 21.333333 0.000000
     Last message repeated 1 times
 rfps: 21.750000 0.000000
     Last message repeated 1 times
 rfps: 21.833333 -131072.000000
     Last message repeated 1 times
 rfps: 22.000000 0.000000
     Last message repeated 1 times
 rfps: 22.250000 -131072.000000
     Last message repeated 1 times
 rfps: 22.333333 0.000000
     Last message repeated 1 times
 rfps: 22.416667 -262144.000000
     Last message repeated 1 times
 rfps: 22.500000 -131072.000000
     Last message repeated 1 times
 rfps: 22.583333 0.000000
     Last message repeated 1 times
 rfps: 22.750000 0.000000
     Last message repeated 1 times
 rfps: 22.833333 0.000000
     Last message repeated 1 times
 rfps: 23.083333 -262144.000000
     Last message repeated 1 times
 rfps: 23.166667 0.000000
     Last message repeated 1 times
 rfps: 23.250000 -131072.000000
     Last message repeated 1 times
 rfps: 23.416667 -131072.000000
     Last message repeated 1 times
 rfps: 23.500000 0.000000
     Last message repeated 1 times
 rfps: 23.583333 0.000000
     Last message repeated 1 times
 rfps: 23.750000 0.000000
     Last message repeated 1 times
 rfps: 23.833333 0.000000
     Last message repeated 1 times
 rfps: 24.000000 0.000000
 rfps: 24.000000 -262144.000000
 rfps: 24.083333 0.000000
     Last message repeated 1 times
 rfps: 24.166667 0.000000
     Last message repeated 1 times
 rfps: 24.250000 0.000000
     Last message repeated 1 times
 rfps: 24.333333 -262144.000000
     Last message repeated 1 times
 rfps: 24.416667 0.000000
     Last message repeated 1 times
 rfps: 24.583333 -262144.000000
     Last message repeated 1 times
 rfps: 24.666667 0.000000
     Last message repeated 1 times
 rfps: 24.916667 -524288.000000
     Last message repeated 1 times
 rfps: 25.000000 -524288.000000
     Last message repeated 1 times
 rfps: 25.166667 -262144.000000
     Last message repeated 1 times
 rfps: 25.333333 0.000000
     Last message repeated 1 times
 rfps: 25.416667 0.000000
     Last message repeated 1 times
 rfps: 25.583333 -262144.000000
     Last message repeated 1 times
 rfps: 25.750000 0.000000
     Last message repeated 1 times
 rfps: 25.833333 -262144.000000
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 rfps: 25.916667 -262144.000000
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 rfps: 26.000000 -262144.000000
     Last message repeated 1 times
 rfps: 26.083333 0.000000
     Last message repeated 1 times
 rfps: 26.166667 0.000000
     Last message repeated 1 times
 rfps: 26.250000 0.000000
     Last message repeated 1 times
 rfps: 26.416667 0.000000
     Last message repeated 1 times
 rfps: 26.583333 -262144.000000
     Last message repeated 1 times
 rfps: 26.833333 -524288.000000
     Last message repeated 1 times
 rfps: 26.916667 -262144.000000
     Last message repeated 1 times
 rfps: 27.000000 0.000000
     Last message repeated 1 times
 rfps: 27.250000 0.000000
     Last message repeated 1 times
 rfps: 27.416667 0.000000
     Last message repeated 1 times
 rfps: 27.500000 0.000000
     Last message repeated 1 times
 rfps: 27.583333 -262144.000000
     Last message repeated 1 times
 rfps: 27.750000 0.000000
     Last message repeated 1 times
 rfps: 27.833333 -262144.000000
     Last message repeated 1 times
 rfps: 27.916667 0.000000
     Last message repeated 1 times
 rfps: 28.083333 -262144.000000
     Last message repeated 1 times
 rfps: 28.166667 -524288.000000
     Last message repeated 1 times
 rfps: 28.250000 0.000000
     Last message repeated 1 times
 rfps: 28.500000 -524288.000000
     Last message repeated 1 times
 rfps: 28.666667 -262144.000000
     Last message repeated 1 times
 rfps: 28.750000 0.000000
     Last message repeated 1 times
 rfps: 28.833333 0.000000
     Last message repeated 1 times
 rfps: 29.083333 0.000000
     Last message repeated 1 times
 rfps: 29.166667 0.000000
     Last message repeated 1 times
 rfps: 29.333333 0.000000
     Last message repeated 1 times
 rfps: 29.416667 -524288.000000
     Last message repeated 1 times
 rfps: 29.750000 -262144.000000
     Last message repeated 1 times
 rfps: 29.833333 -262144.000000
     Last message repeated 1 times
 rfps: 30.166667 -262144.000000
     Last message repeated 1 times
 rfps: 30.250000 0.000000
     Last message repeated 1 times
 rfps: 30.333333 -262144.000000
     Last message repeated 1 times
 rfps: 30.500000 -262144.000000
     Last message repeated 1 times
 rfps: 30.583333 0.000000
     Last message repeated 1 times
 rfps: 30.666667 0.000000
     Last message repeated 1 times
 rfps: 30.750000 -786432.000000
     Last message repeated 1 times
 rfps: 30.833333 0.000000
     Last message repeated 1 times
 rfps: 30.916667 0.000000
     Last message repeated 1 times
 rfps: 31.000000 0.000000
     Last message repeated 1 times
 rfps: 31.083333 -262144.000000
     Last message repeated 1 times
 rfps: 31.166667 0.000000
     Last message repeated 1 times
 rfps: 31.250000 0.000000
     Last message repeated 1 times
 rfps: 31.333333 0.000000
     Last message repeated 1 times
 rfps: 31.416667 -524288.000000
     Last message repeated 1 times
 rfps: 31.583333 0.000000
     Last message repeated 1 times
 rfps: 31.833333 0.000000
     Last message repeated 1 times
 rfps: 31.916667 -262144.000000
     Last message repeated 1 times
 rfps: 32.250000 -262144.000000
     Last message repeated 1 times
 rfps: 32.333333 -262144.000000
     Last message repeated 1 times
 rfps: 32.416667 -262144.000000
     Last message repeated 1 times
 rfps: 32.500000 -262144.000000
     Last message repeated 1 times
 rfps: 32.666667 -262144.000000
     Last message repeated 1 times
 rfps: 32.833333 0.000000
     Last message repeated 1 times
 rfps: 32.916667 -262144.000000
     Last message repeated 1 times
 rfps: 33.000000 -262144.000000
     Last message repeated 1 times
 rfps: 33.083333 0.000000
     Last message repeated 1 times
 rfps: 33.333333 -524288.000000
     Last message repeated 1 times
 rfps: 33.416667 0.000000
     Last message repeated 1 times
 rfps: 33.500000 -262144.000000
     Last message repeated 1 times
 rfps: 33.666667 -786432.000000
     Last message repeated 1 times
 rfps: 33.750000 0.000000
     Last message repeated 1 times
 rfps: 34.083333 -262144.000000
     Last message repeated 1 times
 rfps: 34.166667 -786432.000000
     Last message repeated 1 times
 rfps: 34.250000 -262144.000000
     Last message repeated 1 times
 rfps: 34.500000 -262144.000000
     Last message repeated 1 times
 rfps: 34.583333 -786432.000000
     Last message repeated 1 times
 rfps: 34.666667 0.000000
     Last message repeated 1 times
 rfps: 34.916667 -524288.000000
     Last message repeated 1 times
 rfps: 35.000000 -524288.000000
     Last message repeated 1 times
 rfps: 35.333333 0.000000
     Last message repeated 1 times
 rfps: 35.416667 0.000000
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 rfps: 35.833333 -524288.000000
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 rfps: 35.916667 0.000000
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 rfps: 36.000000 -524288.000000
     Last message repeated 1 times
 rfps: 36.083333 -524288.000000
     Last message repeated 1 times
 rfps: 36.166667 -786432.000000
     Last message repeated 1 times
 rfps: 36.250000 -262144.000000
     Last message repeated 1 times
 rfps: 36.416667 0.000000
     Last message repeated 1 times
 rfps: 36.583333 -524288.000000
     Last message repeated 1 times
 rfps: 36.666667 0.000000
     Last message repeated 1 times
 rfps: 36.750000 -524288.000000
     Last message repeated 1 times
 rfps: 36.916667 0.000000
     Last message repeated 1 times
 rfps: 37.000000 -524288.000000
     Last message repeated 1 times
 rfps: 37.166667 0.000000
     Last message repeated 1 times
 rfps: 37.416667 0.000000
     Last message repeated 1 times
 rfps: 37.500000 -524288.000000
     Last message repeated 1 times
 rfps: 37.583333 -524288.000000
     Last message repeated 1 times
 rfps: 37.666667 -1048576.000000
     Last message repeated 1 times
 rfps: 37.750000 0.000000
     Last message repeated 1 times
 rfps: 37.833333 -524288.000000
     Last message repeated 1 times
 rfps: 37.916667 0.000000
     Last message repeated 1 times
 rfps: 38.000000 -524288.000000
     Last message repeated 1 times
 rfps: 38.083333 -1048576.000000
     Last message repeated 1 times
 rfps: 38.166667 -524288.000000
     Last message repeated 1 times
 rfps: 38.500000 -1048576.000000
     Last message repeated 1 times
 rfps: 38.583333 -524288.000000
     Last message repeated 1 times
 rfps: 39.166667 0.000000
     Last message repeated 1 times
 rfps: 39.333333 -1048576.000000
     Last message repeated 1 times
 rfps: 39.416667 -524288.000000
     Last message repeated 1 times
 rfps: 39.500000 -524288.000000
     Last message repeated 1 times
 rfps: 39.666667 -524288.000000
     Last message repeated 1 times
 rfps: 39.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 39.833333 -524288.000000
     Last message repeated 1 times
 rfps: 39.916667 0.000000
     Last message repeated 1 times
 rfps: 40.083333 -1048576.000000
     Last message repeated 1 times
 rfps: 40.250000 0.000000
     Last message repeated 1 times
 rfps: 40.500000 0.000000
     Last message repeated 1 times
 rfps: 40.583333 -524288.000000
     Last message repeated 1 times
 rfps: 40.666667 0.000000
     Last message repeated 1 times
 rfps: 40.916667 0.000000
     Last message repeated 1 times
 rfps: 41.000000 0.000000
     Last message repeated 1 times
 rfps: 41.083333 0.000000
     Last message repeated 1 times
 rfps: 41.166667 0.000000
     Last message repeated 1 times
 rfps: 41.250000 -1572864.000000
     Last message repeated 1 times
 rfps: 41.333333 -524288.000000
     Last message repeated 1 times
 rfps: 41.416667 -524288.000000
     Last message repeated 1 times
 rfps: 41.583333 -524288.000000
     Last message repeated 1 times
 rfps: 41.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 42.000000 0.000000
     Last message repeated 1 times
 rfps: 42.166667 0.000000
     Last message repeated 1 times
 rfps: 42.333333 -524288.000000
     Last message repeated 1 times
 rfps: 42.666667 -524288.000000
     Last message repeated 1 times
 rfps: 42.750000 -524288.000000
     Last message repeated 1 times
 rfps: 42.916667 -1572864.000000
     Last message repeated 1 times
 rfps: 43.000000 0.000000
     Last message repeated 1 times
 rfps: 43.083333 -524288.000000
     Last message repeated 1 times
 rfps: 43.250000 -1048576.000000
     Last message repeated 1 times
 rfps: 43.416667 0.000000
     Last message repeated 1 times
 rfps: 43.500000 0.000000
     Last message repeated 1 times
 rfps: 43.666667 -524288.000000
     Last message repeated 1 times
 rfps: 43.750000 -524288.000000
     Last message repeated 1 times
 rfps: 44.000000 0.000000
     Last message repeated 1 times
 rfps: 44.083333 0.000000
     Last message repeated 1 times
 rfps: 44.250000 0.000000
     Last message repeated 1 times
 rfps: 44.416667 -1048576.000000
     Last message repeated 1 times
 rfps: 44.500000 -524288.000000
     Last message repeated 1 times
 rfps: 44.583333 0.000000
     Last message repeated 1 times
 rfps: 44.666667 0.000000
     Last message repeated 1 times
 rfps: 44.833333 -1048576.000000
     Last message repeated 1 times
 rfps: 44.916667 -524288.000000
     Last message repeated 1 times
 rfps: 45.000000 -524288.000000
     Last message repeated 1 times
 rfps: 45.166667 0.000000
     Last message repeated 1 times
 rfps: 45.250000 0.000000
     Last message repeated 1 times
 rfps: 45.416667 0.000000
     Last message repeated 1 times
 rfps: 45.500000 0.000000
     Last message repeated 1 times
 rfps: 45.583333 0.000000
     Last message repeated 1 times
 rfps: 45.666667 0.000000
     Last message repeated 1 times
 rfps: 45.750000 -524288.000000
     Last message repeated 1 times
 rfps: 46.166667 -1048576.000000
     Last message repeated 1 times
 rfps: 46.333333 0.000000
     Last message repeated 1 times
 rfps: 46.416667 0.000000
     Last message repeated 1 times
 rfps: 46.500000 0.000000
     Last message repeated 1 times
 rfps: 46.583333 -524288.000000
     Last message repeated 1 times
 rfps: 46.666667 0.000000
     Last message repeated 1 times
 rfps: 46.833333 -524288.000000
     Last message repeated 1 times
 rfps: 46.916667 -524288.000000
     Last message repeated 1 times
 rfps: 47.083333 -524288.000000
     Last message repeated 1 times
 rfps: 47.166667 0.000000
     Last message repeated 1 times
 rfps: 47.333333 0.000000
     Last message repeated 1 times
 rfps: 47.666667 0.000000
     Last message repeated 1 times
 rfps: 47.750000 -524288.000000
     Last message repeated 1 times
 rfps: 48.083333 -1572864.000000
     Last message repeated 1 times
 rfps: 48.166667 -524288.000000
     Last message repeated 1 times
 rfps: 48.250000 0.000000
     Last message repeated 1 times
 rfps: 48.333333 -524288.000000
     Last message repeated 1 times
 rfps: 48.500000 -1048576.000000
     Last message repeated 1 times
 rfps: 48.583333 0.000000
     Last message repeated 1 times
 rfps: 48.666667 0.000000
     Last message repeated 1 times
 rfps: 48.750000 0.000000
     Last message repeated 1 times
 rfps: 48.833333 -524288.000000
     Last message repeated 1 times
 rfps: 48.916667 -524288.000000
     Last message repeated 1 times
 rfps: 49.250000 -1048576.000000
     Last message repeated 1 times
 rfps: 49.333333 -524288.000000
     Last message repeated 1 times
 rfps: 49.500000 0.000000
     Last message repeated 1 times
 rfps: 49.583333 0.000000
     Last message repeated 1 times
 rfps: 49.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 49.833333 -2097152.000000
     Last message repeated 1 times
 rfps: 50.000000 -2097152.000000
     Last message repeated 1 times
 rfps: 50.083333 -1048576.000000
     Last message repeated 1 times
 rfps: 50.250000 0.000000
     Last message repeated 1 times
 rfps: 50.333333 -1048576.000000
     Last message repeated 1 times
 rfps: 50.416667 0.000000
     Last message repeated 1 times
 rfps: 50.583333 0.000000
     Last message repeated 1 times
 rfps: 50.666667 0.000000
     Last message repeated 1 times
 rfps: 50.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 50.833333 0.000000
     Last message repeated 1 times
 rfps: 51.083333 0.000000
     Last message repeated 1 times
 rfps: 51.166667 -1048576.000000
     Last message repeated 1 times
 rfps: 51.250000 0.000000
     Last message repeated 1 times
 rfps: 51.500000 0.000000
     Last message repeated 1 times
 rfps: 51.583333 -1048576.000000
     Last message repeated 1 times
 rfps: 51.666667 -1048576.000000
     Last message repeated 1 times
 rfps: 51.750000 -524288.000000
     Last message repeated 1 times
 rfps: 51.833333 -1048576.000000
     Last message repeated 1 times
 rfps: 51.916667 -1048576.000000
 rfps: 51.916667 -1572864.000000
 rfps: 52.000000 -1048576.000000
     Last message repeated 1 times
 rfps: 52.083333 -524288.000000
     Last message repeated 1 times
 rfps: 52.166667 0.000000
     Last message repeated 1 times
 rfps: 52.250000 0.000000
     Last message repeated 1 times
 rfps: 52.333333 0.000000
     Last message repeated 1 times
 rfps: 52.500000 0.000000
     Last message repeated 1 times
 rfps: 52.583333 0.000000
     Last message repeated 1 times
 rfps: 52.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 52.833333 0.000000
     Last message repeated 1 times
 rfps: 52.916667 -2097152.000000
     Last message repeated 1 times
 rfps: 53.166667 -1048576.000000
     Last message repeated 1 times
 rfps: 53.250000 -1048576.000000
     Last message repeated 1 times
 rfps: 53.416667 -2097152.000000
     Last message repeated 1 times
 rfps: 53.500000 0.000000
     Last message repeated 1 times
 rfps: 53.583333 -1048576.000000
     Last message repeated 1 times
 rfps: 53.666667 -1048576.000000
     Last message repeated 1 times
 rfps: 53.833333 -1048576.000000
     Last message repeated 1 times
 rfps: 54.000000 0.000000
     Last message repeated 1 times
 rfps: 54.083333 -1048576.000000
     Last message repeated 1 times
 rfps: 54.500000 0.000000
     Last message repeated 1 times
 rfps: 54.583333 -1048576.000000
     Last message repeated 1 times
 rfps: 54.666667 -1048576.000000
     Last message repeated 1 times
 rfps: 54.750000 0.000000
     Last message repeated 1 times
 rfps: 54.833333 -1048576.000000
     Last message repeated 1 times
 rfps: 54.916667 0.000000
     Last message repeated 1 times
 rfps: 55.000000 -1048576.000000
     Last message repeated 1 times
 rfps: 55.083333 -1048576.000000
     Last message repeated 1 times
 rfps: 55.166667 0.000000
     Last message repeated 1 times
 rfps: 55.500000 0.000000
     Last message repeated 1 times
 rfps: 55.583333 0.000000
     Last message repeated 1 times
 rfps: 55.666667 0.000000
     Last message repeated 1 times
 rfps: 55.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 55.833333 0.000000
     Last message repeated 1 times
 rfps: 55.916667 -1048576.000000
     Last message repeated 1 times
 rfps: 56.083333 0.000000
     Last message repeated 1 times
 rfps: 56.166667 -1048576.000000
     Last message repeated 1 times
 rfps: 56.333333 -2097152.000000
     Last message repeated 1 times
 rfps: 56.500000 0.000000
     Last message repeated 1 times
 rfps: 56.750000 -1048576.000000
     Last message repeated 1 times
 rfps: 56.916667 -1048576.000000
     Last message repeated 1 times
 rfps: 57.000000 -2097152.000000
     Last message repeated 1 times
 rfps: 57.083333 0.000000
     Last message repeated 1 times
 rfps: 57.250000 0.000000
     Last message repeated 1 times
 rfps: 57.333333 -1048576.000000
     Last message repeated 1 times
 rfps: 57.416667 0.000000
     Last message repeated 1 times
 rfps: 57.500000 0.000000
     Last message repeated 1 times
 rfps: 57.666667 0.000000
     Last message repeated 1 times
 rfps: 57.916667 -1048576.000000
     Last message repeated 1 times
 rfps: 58.083333 0.000000
     Last message repeated 1 times
 rfps: 58.166667 0.000000
     Last message repeated 1 times
 rfps: 58.250000 0.000000
     Last message repeated 1 times
 rfps: 58.333333 0.000000
     Last message repeated 1 times
 rfps: 58.416667 -1048576.000000
     Last message repeated 1 times
 rfps: 58.666667 0.000000
     Last message repeated 1 times
 rfps: 58.750000 -3145728.000000
     Last message repeated 1 times
 rfps: 58.833333 -2097152.000000
     Last message repeated 1 times
 rfps: 59.166667 0.000000
     Last message repeated 1 times
 rfps: 59.250000 0.000000
     Last message repeated 1 times
 rfps: 59.416667 -1048576.000000
     Last message repeated 1 times
 rfps: 59.500000 -2097152.000000
     Last message repeated 1 times
 rfps: 59.583333 0.000000
     Last message repeated 1 times
 rfps: 59.666667 0.000000
     Last message repeated 1 times
 rfps: 59.750000 -4194304.000000
     Last message repeated 1 times
 rfps: 59.833333 0.000000
     Last message repeated 1 times
 rfps: 59.916667 -1048576.000000
     Last message repeated 1 times
 [video4linux2,v4l2 @ 0x21311e0] Estimating duration from bitrate, this may
 be inaccurate
 Input #0, video4linux2,v4l2, from '/dev/video0':
   Duration: N/A, start: 1343570276.238836, bitrate: N/A
     Stream #0:0, 8, 1/1000000: Video: rawvideo (I420 / 0x30323449),
 yuv420p, 640x480, 1/1000000, -2147483 kb/s, 1.83 tbr, 1000k tbn, 1000k tbc
 [buffer @ 0x2136010] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:0/1
 sws_param:flags=2
 [buffersink @ 0x21362f0] No opaque field provided
 [mpeg1video @ 0x2131df0] intra_quant_bias = 96 inter_quant_bias = 0
 [mpeg1video @ 0x2131df0] MPEG1/2 does not support 5/1 fps
 Output #0, mpeg, to 'out-vga-2M-5min.mpg':
     Stream #0:0, 0, 1/90000: Video: mpeg1video, yuv420p, 640x480, 1/5,
 q=2-31, 200 kb/s, 90k tbn, 5 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
 Error while opening encoder for output stream #0:0 - maybe incorrect
 parameters such as bit_rate, rate, width or height
 Received signal 2: terminating.
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1570#comment:7>
FFmpeg <http://ffmpeg.org>
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