I’ve just started using QWinFF and I was trying to combine an audio and video file together with it.
As I know that it supports ffmpeg commands, I tried using the “ffmpeg -i video.mp4 -i audio.m4a -c:v copy -c:a copy output.mp4” command in the advanced tab. Didn’t work!
Does someone have any idea what is the correct way to use ffmpeg commands in QWinFF?
I use FFmpeg 'raw', as it were. You have missed out the commands that tells it how to map the video and audio streams to the output file. Try:
ffmpeg -i video.mp4 -i audio.m4a -map 0:0 -map 1:0 -c:v copy -c:a copy output.mp4
This says map input 0 stream 0 (your video) to the output's stream 0, and input 1, stream 0 (your audio) to the output's stream 1.
Also, I have had a few cases where the '-c:a copy' has caused problems. If it still doesn't work, leave that out and let FFmpeg recode the audio.
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