I have a written a small ffmpeg based program which scans the frames in
an mp4 file, gathering stats.  It happily does this on the local mp4
file.  However, if I pass the same file through the ffserver using the
'conf' info below:

Launch ../ffmpeg-checkout-2008-11-24/ffmpeg -i mymovie.mp4

<Stream test_h.avi>
Feed feed1.ffm
Format avi
#
BitExact
DctFastint
IdctSimple
VideoFrameRate 10
VideoSize 640x480
VideoBitRate 100
VideoGopSize 30
NoAudio

PreRoll 10
StartSendOnKey
MaxTime 100

</Stream>
...then my program barfs with:

[avi @ 0xc985d0] Could not find codec parameters (Video: mpeg4, 640x480)

It seems to pass the av_open_input_file call OK but fails at
av_find_stream_info.  Can anyone tell me what I'm doing wrong here?

Thanks,

Gary

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