Le duodi 2 fructidor, an CCXXI, Joe Flowers a écrit : > When I encode the same audio file with a program I am writing that uses > libavcodec I get a 26,372 byte Speex encoded file - FileB. BUT, 9 bytes in > the middle of the last 38 bytes of encoded data are different between the 2 > encoded files (FileA and FileB). All of the other bytes are exactly the > same between the two encoded files.
I would suggest to add a dump of each frame before encoding, in both your program and ffmpeg (or just in libavcodec). I suspect something in the padding / very end of the last frame may be different. > What makes this weirder to me is that if I decode my Speex encoded file > (FileB) with the other part of my program that uses libavcodec I get the > EXACT same decoded file contents and length as I do if I decode the > FFMPEG-encoded file (FileA) with FFMPEG. That would be consistent with what I suspect: the difference you see would manifest on the next decoded frame if there was one. Regards, -- Nicolas George
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