I came across a WMV movie with audio that artifacts heavily with ffwma2, but plays perfectly with wmadmo. Uploaded a short sample to incoming/ named wmabugs.wma. I also uploaded wmabugs.wmv. Mencoder with -demuxer lavf is unable to copy WMA audio. Copying works fine with the native demuxer. This demuxer bug seems to have been introduced somewhere between 1.0pre6 and pre7 (dev-CVS-051221 with -demuxer 35 copies WMA audio just fine). But even with recent versions of mencoder, copying the WMA audio into an AVI file using the native demuxer results in an even more interesting issue... ffwma2 is now able to decode that WMA audio (in the AVI file) without glitches. This is really starting to look almost exactly like the (mostly still unfixed) mp3 glitches/bugs I reported here a while back...
On Wed, 19 Sep 2007 09:31:47 -0700 RC <cooleyr@gmail.com> wrote:
Mencoder with -demuxer lavf is unable to copy WMA audio. Copying works fine with the native demuxer. This demuxer bug seems to have been introduced somewhere between 1.0pre6 and pre7 (dev-CVS-051221 with -demuxer 35 copies WMA audio just fine).
Ignore this one. The distortions I experienced _copying_ wma audio with -demuxer lavf have disappeared... Perhaps some typo or other (trivial) option I used was to blame. Mea culpa.
On Wed, Sep 19, 2007 at 09:31:47AM -0700, RC wrote:
I came across a WMV movie with audio that artifacts heavily with ffwma2, but plays perfectly with wmadmo. Uploaded a short sample to incoming/ named wmabugs.wma. I also uploaded wmabugs.wmv.
Does it work with ffplay? If it does not, please file a bug with FFmpeg. Diego
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RC