On Thu, 2010-10-21 at 18:52 +0100, John Gladman wrote: > Hi > > If I try converting avi using command line it works OK. If I use library > calls I get following error. > > My conversion code is attached.
Nope, you forgot to attach it. > 2010-10-21 18:43:23.573 iFrameExtractor[41483:207] video duration: 3.320454 > 2010-10-21 18:43:23.574 iFrameExtractor[41483:207] video size: 640 x 480 > Input #1, avi, from '/Users/johngladman/Library/Application Support/iPhone > Simulator/4.0/Applications/0FC01E72-9F4B-4E00-AAF9-DF3113C4C2CB/iFrameExtractor.app/sample.avi': > Duration: 00:00:00.00, start: 0.000000, bitrate: -2147483 kb/s > Stream #1.0: Video: mjpeg, yuvj420p, 320x390 [PAR 1:1 DAR 32:39], 6 tbr, > 6 tbn, 6 tbc > Stream #1.1: Audio: pcm_s16le, 44100 Hz, 1 channels, s16, 705 kb/s > [mpeg4 @ 0x6811c00]removing common factors from framerate > [mp4 @ 0x6825400]track 1: could not find tag, codec not currently supported > in container mp4 doesn't support pcm_s16le (and I suppose uncompressed audio in general). Mux as "mov" instead. If you can tolerate a little loss you can also try encoding the audio to mp2, ac3 or aac. /Tomas
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