[Ffmpeg-devel] mpeg4 file container
Thu May 18 16:29:32 CEST 2006
i have noticed that mp4 files created with ffmpeg build after february have
problem playing in some players.
I use ffmpeg -i 123.avi -vcodec mpeg4 -b 448 -acodec aac -ab 64 -f mp4 123.mp4
the files convert just fine, but there is something that prevents the files
beeing played back. i had a look at the headers and noticed that the new ones
that dont play contain " ftypisom mp41 wide ??mdat? libfaac 1.24"
while the old working ones would start with " ftypisom mp41 ?gmdat?
libfaac 1.24". i couldnt find any differences when looking at the files with
file information tools like mediainfo.exe
the files play fine in vlc and quicktime, they dont play in pvplayer or
i used the builds i could find at http://ffdshow.faireal.net/mirror/ffmpeg/
i uploaded everything to:
www.formaji.com/old.exe -> ffmpeg downloaded ~february
www.formaji.com/new.exe -> march ffmpeg, newer ones have the same problem
www.formaji.com/old.mp4 -> old ffmpeg converted file
www.formaji.com/new.mp4 -> you get it
can someone give me a clue what was changed in the code? why do the converted
also i tried compiling ffmpeg yesterday myself and it doesnt seem to work. at
some point it allways gives me an error 1 and stops compiling, no matter what
./configuration i use. others experienced this?
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