Bug#693554: libav-tools: avconv X11 grabbing example from the man doesn't work

[Lorenzo Sutton]

Package: libav-tools
Version: 6:0.8.4-1
Severity: normal

Dear Maintainer,

Running:

avconv -f x11grab -s cif -r 25 -i :0.0 out.mpg

which is exactly the same as the manual entry example under "X11 grabbing"
(but for the output file)

generates a 0 bytes file and the following output:

avconv: Symbol `av_pix_fmt_descriptors' has different size in shared object, consider re-linking
avconv version 0.8.4-6:0.8.4-1, Copyright (c) 2000-2012 the Libav developers
  built on Oct 23 2012 07:29:48 with gcc 4.7.2
[x11grab @ 0x8b953e0] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 352 height: 288
[x11grab @ 0x8b953e0] shared memory extension found
[x11grab @ 0x8b953e0] Estimating duration from bitrate, this may be inaccurate
Input #0, x11grab, from ':0.0':
  Duration: N/A, start: 1353183611.469278, bitrate: 81100 kb/s
    Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 352x288, 81100 kb/s, 25 tbr, 1000k tbn, 25 tbc
File 'out.mpg' already exists. Overwrite ? [y/N] y
Incompatible pixel format 'bgra' for codec 'mpeg1video', auto-selecting format 'yuv420p'
[buffer @ 0x8ba77a0] w:352 h:288 pixfmt:bgra tb:1/1000000 sar:0/1 sws_param:
[avsink @ 0x8b930e0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x8b93520] w:352 h:288 fmt:bgra sar:0/1 -> w:352 h:288 fmt:yuv420p sar:0/1 flags:0x4
[mpeg @ 0x8b8f800] VBV buffer size not set, muxing may fail
Output #0, mpeg, to 'out.mpg':
  Metadata:
    encoder         : Lavf53.32.100
    Stream #0:0: Video: mpeg1video, yuv420p, 352x288, q=2-31, 200 kb/s, 90k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo -> mpeg1video)
Press ctrl-c to stop encoding
[buffer @ 0x8ba77a0] Changing frame properties on the fly is not supported.
    Last message repeated 31 times
Changing frame properties on the fly is not supported.0000.00 bitrate=   0.0kbits/s    

Last 3 lines is repeated continuously, with only the number for "repeated #
times" changed.

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (650, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libav-tools depends on:
ii  dpkg             1.16.3
ii  libavcodec53     7:0.10.3-dmo1
ii  libavdevice53    7:0.10.3-dmo1
ii  libavfilter2     7:0.11.1-dmo2
ii  libavformat53    7:0.10.3-dmo1
ii  libavutil51      7:0.11.1-dmo2
ii  libc6            2.13-32
ii  libpostproc52    7:0.11.1-dmo2
ii  libsdl1.2debian  1.2.15-3
ii  libswscale2      7:0.11.1-dmo2

libav-tools recommends no packages.

libav-tools suggests no packages.

-- no debconf information