[FFmpeg-user] merging mp4 (h.264) and aac with acodec copy doesn't work

[James Darnley]

On 2012-07-04 18:41, Marc wrote:
>   ffmpeg  "'.$videotrack.'" -i "'.$audiotrack2.'" -vcodec copy -acodec
> copy "'.$targetFile.'"

This probably doesn't work because you're missing -i before one of the
input files.