Dear all,
I have movie.wmv that is working fine, audio and video synchronized.
And it goes though FFMPEG to become movie.swf or .flv:
ffmpeg -i movie.wmv -ab 64 -ar 22050 -b 9570 -r 29.97 -s 256x188 -y movie.swf
I obtain movie.swf (or movie.flv) and it is then when I play the swf or flv that the video starts later than the audio.
Then, I am doing:
ffmpeg -i movie.wmv -itsoffset 00:00:04 -i movie.wmv -ab 64 -ar 22050 -b 9570 -r 29.97 -s 256x188 -y movie.swf
and movie.swf is desynchronized once again.
If I do:
ffmpeg -i movie.wmv -itsoffet delay -i movie.wmv -map 0: x -map 1:y –ab 64 -ar 22050 -b 9570 -r 29.97 -s 256x188 -y movie.swf
nothing happens.
What am I doing wrong?
Zillions of thanks!
Note: using FFMEG.exe and executing through a PHP script, all in a Linux based web host
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ASF/WMV usually means variable framerate and may contain
variable samplerate audio --- the adequate scenario for sync problems
after format conversion.
Note: using FFMEG.exe and executing through a PHP script, all in a Linux based web host
less unfriendly than ASF.
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