ffmpeg log_1

dan@dan-desktop ~> ffmpeg -i pi_vid.mp4 -an -vcodec mjpeg -qscale 1 -r 30 ORIGINAL_MJPEG.avi
ffmpeg version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
  built on Feb  6 2014 20:56:59 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
[h264 @ 0x212c7a0] max_analyze_duration reached
[h264 @ 0x212c7a0] Estimating duration from bitrate, this may be inaccurate

Seems stream 0 codec frame rate differs from container frame rate: 2400000.00 (2400000/1) -> 25.00 (25/1)
Input #0, h264, from 'pi_vid.mp4':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Video: h264 (High), yuv420p, 1296x972, 25 fps, 25 tbr, 1200k tbn, 2400k tbc
Incompatible pixel format 'yuv420p' for codec 'mjpeg', auto-selecting format 'yuvj420p'
[buffer @ 0x212ece0] w:1296 h:972 pixfmt:yuv420p
[avsink @ 0x21e4a80] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x21e51a0] w:1296 h:972 fmt:yuv420p -> w:1296 h:972 fmt:yuvj420p flags:0x4
Output #0, avi, to 'ORIGINAL_MJPEG.avi':
  Metadata:
    ISFT            : Lavf53.21.1
    Stream #0.0: Video: mjpeg, yuvj420p, 1296x972, q=2-31, 200 kb/s, 30 tbn, 30 tbc
Stream mapping:
  Stream #0.0 -> #0.0
Press ctrl-c to stop encoding
frame=    1 fps=  0 q=1.0 Lsize=      27kB time=0.03 bitrate=6729.6kbits/s dup=0 drop=907
video:22kB audio:0kB global headers:0kB muxing overhead 25.537249%
dan@dan-desktop ~>