ffmpeg generate audio/add to video help please, command line

[surfmonkee]

so, on linux atm i use ffmpeg to convert content to my psp1000.

i use this command:

ffmpeg -i input.avi -r 29.97 -b 564k -ar 48000 -ab 128k -s 368x208 -f psp output.mp4

now i want to add a pile of mpeg files that have no audio track, the .mpg needs an audio track of some kind or ffmpeg wont accept the file. (presumably cos of the psp in the command.

what command can i add to the conversion if say i have input.mpg which equals 00:10:32:35 for example

i want to ffmpeg to generate the exactly amount of silence and combine it with the input.mpeg

any help much appreicated

[bat999]

Hi
Try it with a command like this:-

ffmpeg -i input.avi -vcodec libx264 -r 29.97 -b 564k -s 368x208 -an output.mp4

See if the result will play on your psp1000.

[surfmonkee]

ok i will try that, probably get time to try it monday evening. thanks

[surfmonkee]

ignore this, i double posted. error