On Mon, 2 May 2011 23:45:18 ranjini raguu wrote:

Hello im using ffmpeg for conversions... my prob is whn ever i try to convert any video files to .mkv it fails.... this is the parameter im passing for the conversion.

-vcodec libx264 -b 1250kb -acodec libmp3lame -ar 44100 -ab 160kb -ac 2 is there any prob with this conversion in default???? thanks for any replies.... _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user

I use ffmpeg with libx264 for converting m2t to mkc regularly and it works fine. You need to post your full command line and full output from ffmpeg (with whatever error messages you're getting). "It fails" does not help anyone diagnose the problem. My guess, though, is that you're getting an "invalid size or bitrate" message because you're not passing any presets to libx264 (and the ffmpeg default parameters for libx264 are badly broken, apparently). After -vcodec libx264 add -preset <preset> [-profile <profile>] [-tune <tune>] The parameters in <> you can find by doing x264 --help (or x264 --fullhelp for more detail). The parameters in [] are optional. You need at least the preset, and you will probably want the profile too. If you need more help than that, like I said, post your full command line along with the full output. -- =================================================== Rodney Baker VK5ZTV rodney.baker@iinet.net.au ===================================================