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Empty file when converting vcd (.dat) format to ipod (mpeg4)

happyriceman posted 2008 Jun 28 16:36

Hi all, i had this report after trying to convert a vcd format to ipod format... the target file is empty Encoding started on Sun Jun 29 05:11:59 SGT 2008 FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard Mac OSX universal build for ffmpegX libavutil version: 49.0.0 libavcodec version: 51.9.0 libavformat version: 50.4.0 Input #0, mpeg, from '/Volumes/VCD_36281_D1_1/MPEGAV/AVSEQ03.DAT': Duration: 00:56:31.7, start: 0.826667, bitrate: 1411 kb/s Stream #0.0[0x1c0]: Audio: mp2, 44100 Hz, stereo, 224 kb/s Stream #0.1[0x1e0], 25.00 fps(r): Video: mpeg1video, yuv420p, 352x288, 1140 kb/s Codec type mismatch for mapping #0.0 -> #0.0 Pls help, thx

Case posted 2008 Jun 28 17:11

happyriceman : Codec type mismatch for mapping #0.0 -> #0.0 Your source file has the audio stream (#0.0) mapped before the video stream (#0.1). This is reverse from what the ffmpeg engine expects. You may fix this "Codec type mismatch for mapping"-error by indicating that the streams are reversed. To do so, check the "Invert mapping" checkbox in the audio tab.

happyriceman posted 2008 Jun 30 08:41

thanks got it to work!

er-stens posted 2008 Jul 05 05:19

I ought to thank, too. Just downloaded ffmpegX to convert from VOB to DV. Got empty files as result and no error message. Browsed the web to find a solution. Here I found it! It was far from obvious to me what the problem could be. BTW, would assume that an application like ffmepeg should be able to detect the ordering of video and audio itself?? :)

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