How can I use ffmpeg commands in QWinFF?

  1. Posts : 4
    Windows 10 x64

    How can I use ffmpeg commands in QWinFF?

    Iíve 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 ďffmpeg -i video.mp4 -i audio.m4a -c:v copy -c:a copy output.mp4Ē command in the advanced tab. Didnít work!
    Does someone have any idea what is the correct way to use ffmpeg commands in QWinFF?
      My Computer

  2. Posts : 25,107
    10 Home x64 (21H2) (10 Pro on 2nd pc)

    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.
      My Computers


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