abuchanan@abuchanan-desktop:~/Videos/encoding-testing/HA-motion$ ffmpeg -i track10.mpg -f rawvideo -pix_fmt yuyv422 -vframes 750 track10.yuyv422.yuv
ffmpeg version N-33465-gb2f88ce, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 11 2011 14:54:53 with gcc 4.5.2
  configuration: --enable-gpl --enable-x11grab
  libavutil    51. 20. 1 / 51. 20. 1
  libavcodec   53. 20. 0 / 53. 20. 0
  libavformat  53. 15. 0 / 53. 15. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 43. 6 /  2. 43. 6
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0
[mpeg2video @ 0x2cfa6c0] allocate dummy last picture for field based first keyframe
[mpegts @ 0x2cf6780] max_analyze_duration 5000000 reached at 5000000

Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1) -> 50.00 (50/1)
Input #0, mpegts, from 'track10.mpg':
  Duration: 00:04:36.96, start: 6239.701289, bitrate: 7819 kb/s
  Program 1
    Stream #0:0[0x44]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 9000 kb/s, 25 fps, 50 tbr, 90k tbn, 50 tbc
[buffer @ 0x2cfad40] w:720 h:576 pixfmt:yuv420p tb:1/1000000 sar:16/15 sws_param:
[buffersink @ 0x2cfc3e0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out'
[scale @ 0x2cfcc00] w:720 h:576 fmt:yuv420p -> w:720 h:576 fmt:yuyv422 flags:0x4
Output #0, rawvideo, to 'track10.yuyv422.yuv':
  Metadata:
    encoder         : Lavf53.15.0
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x576 [SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 50 tbc
Stream mapping:
  Stream #0.0 -> #0.0 (mpeg2video -> rawvideo)
Press [q] to stop, [?] for help
[mpeg2video @ 0x2cfa6c0] allocate dummy last picture for field based first keyframe
[mpeg2video @ 0x2cfa6c0] ignoring SEQ_START_CODE after 101
[mpeg2video @ 0x2cfa6c0] ignoring seq ext after 101
[mpeg2video @ 0x2cfa6c0] ignoring GOP_START_CODE after 101
frame=  750 fps=417 q=0.0 Lsize=  607500kB time=00:00:15.00 bitrate=331776.0kbits/s dup=394 drop=0
video:607500kB audio:0kB global headers:0kB muxing overhead 0.000000%