I am transcoding FLV content using ffmpeg and libx264. One problem, the content plays fine in some players such as VLC, but not in others. For example, Adobe Media Player plays the audio fine but there is no video. The original FLV content plays fine in all.

Command I use . . .

ffmpeg -i stream.flv -vcodec libx264 -vpre lossless_ultrafast -b 250000 -acodec copy -y test.flv

Question is, how do I go about troubleshooting this? I tried Adobe's FLVChecker but this tells me the file is good.

I also tried post-processing to get the missing metadata but this did not help.

Thanks,
Bob
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