On Tue, Nov 10, 2009 at 8:37 AM, Mehul Ved <[email protected]> wrote:
> 2009/11/10 Mallikarjun <[email protected]>: > > On Tue, Nov 10, 2009 at 12:21 AM, Mehul Ved <[email protected]> > wrote: > > This works, but how do you improve the quality of video & how to convert > mp4 > > to other format. > > Also if you could explain the parameters, i will be thankful > > > >> > >> Remember to put -acodec copy otherwise ffmpeg uses aac which will not > >> give you any sound. You can play around with size(-s), frame rate(-r), > >> bitrate(-b), audio rate(-ar) and audio bitrate(-ab). > > Parameters are explained right below your reply. > > To get a better qualilty you can look at the following: > -s vga(640x480) or svga(800x600) > -ab 128 to 320 depending on the audio bitrate of original video, the > audio quality you want for the output file and the size consideration > for the output file. > Of course, the original video should be of good quality else it won't > be of much use. > You can get much more information on the options on this page[1] > > To convert mp4 to other format you can look at -vcodec[2] option to > specify the video codec and -acodec[3] to specify the audio codec. > Also look at the output of ffmpeg -formats > > Thats quiet informative, thanks a lot > 1. http://ffmpeg.org/ffmpeg-doc.html > 2. http://ffmpeg.org/general.html#SEC6 > 3. http://ffmpeg.org/general.html#SEC7 > > -- > ubuntu-in mailing list > [email protected] > https://lists.ubuntu.com/mailman/listinfo/ubuntu-in >
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