Hi Matt, Actually I tried to do the same thing with H264 files. I took an H264 file as input file and specifed -b with some bit rate and tried to save it in same container as input file but the output file that I get is an MPEG4-2 file.
Thanks, Disha On Thu, Aug 4, 2011 at 1:35 AM, Matthew Einhorn <[email protected]>wrote: > Running "ffmpeg -formats" list all the codecs that ffmpeg can > decode/encode. If you look at vc1 you'll see that ffmpeg can only > decode it not encode it. So you cannot save a file in vc1 format (I > think). You'll have to select a different output format. > > Matt > > On Wed, Aug 3, 2011 at 2:33 PM, disha mishra <[email protected]> > wrote: > > Yes I tried -vcodec copy but that doesn't work. > > > > Thanks, > > > > On Wed, Aug 3, 2011 at 10:49 AM, Matthew Einhorn <[email protected]> > > wrote: > >> > >> On Wed, Aug 3, 2011 at 1:35 PM, disha mishra <[email protected]> > >> wrote: > >> > Hi > >> > I have a VC-1 file at Simple profile, medium level, bit rate = 236 > kbps. > >> > I > >> > use the following command to change bit rate and frame rate of file > >> > > >> > ffmpeg -i input.wmv -b 128k -r 15 output.wmv > >> > > >> > When I check the information of output file, it shows a file with > MPEG-4 > >> > Visual format and codec MP43. Is there any way to produce an output > file > >> > with the same VC1 Simple profile, medium level information as input > >> > file > >> > using ffmpeg? > >> > > >> > I tried using -f vc1 switch in the command but thats only for having > raw > >> > vc1 > >> > video output. > >> > > >> > Thanks, > >> > > >> > >> Have you tried -vcodec copy? It's in the ffmpeg documentation. > >> > >> Matt > >> > > >> > _______________________________________________ > >> > Libav-user mailing list > >> > [email protected] > >> > http://ffmpeg.org/mailman/listinfo/libav-user > >> > > >> > > >> _______________________________________________ > >> Libav-user mailing list > >> [email protected] > >> http://ffmpeg.org/mailman/listinfo/libav-user > > > > > > _______________________________________________ > > Libav-user mailing list > > [email protected] > > http://ffmpeg.org/mailman/listinfo/libav-user > > > > > _______________________________________________ > Libav-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/libav-user >
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