> -----Original Message----- > From: [email protected] [mailto:ffmpeg-user- > [email protected]] On Behalf Of Austin Einter > Sent: 03 July 2015 00:54 > To: [email protected] > Subject: Re: [FFmpeg-user] Remux doubts > > Can somebody pls clarify.., I observed the remuxed file is less by 17 bytes.
That does not necessarily indicate a problem, but rather more likely the fact that the new container has slightly different metadata. You could demux both the original and remuxed files to elementary streams for more meaningful comparison. > > On Thu, Jul 2, 2015 at 11:04 AM, Austin Einter <[email protected]> > wrote: > > > Hi All > > I am new to FFmpeg. > > But I am really excited to learn more about it. > > > > I tried remuxing example as a first step. > > > > I have taken remux example available at > > http://ffmpeg.org/doxygen/trunk/doc_2examples_2remuxing_8c- > example.html. > > > > I compiled andlinked to ffmpeg .so files. > > Everything went fine. > > > > Now I downloaded a webm file (small.webm). > > It contains vp8 and vorbis frames. > > > > I did remux it and output file is remuxed.webm > > > > I can play the remuxed webm file. > > > > So far so good. > > > > > > ---------------------------------------------------------------------- > > ---------------------------------------- > > > > Now I wanted to remux a webm file that contains vp8 and opus frames. > > I could not get such file in internet. > > > > So I converted small.webm file to another file say output.webm that > > contains vp8 and opus frames using below command. > > > > *./ffmpeg -i small.webm -c:v libvpx -c:a libopus -qmin 0 -qmax 20 > > output.webm* > > > > I opened output.webm in a mozilla browser and I am able to play it. > > Looks everything fine here. > > > > Then I did remux of output.webm and say resultant file is remuxed.webm. > > > > If I try to pay remuxed.webm in mozilla browser, it does not play. > > It gives an error "Video can't be played because the file is corrupt". > > > > Can somebody help me to understand when I remux vp8/vorbis file it > > works, and when I remux vp8/opus file it does not work using the > > example at > http://ffmpeg.org/doxygen/trunk/doc_2examples_2remuxing_8c- > example.html. > > > > I am using ffmpeg 2.7.1 version. > > > > Thanks > > Austin > > > > > > > > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
