Windows 10: How can I use ffmpeg commands in QWinFF?

Discus and support How can I use ffmpeg commands in QWinFF? in Windows 10 Support to solve the problem; 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... Discussion in 'Windows 10 Support' started by AndyTh, Mar 23, 2017.

  1. AndyTh Win User

    How can I use ffmpeg commands in QWinFF?


    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?

    :)
     
    AndyTh, Mar 23, 2017
    #1
  2. grschinon Win User

    Videos Wrong way round: N95 8Gb

    I use ffmpeg for that. But beware that it's a command line tool, not a pointy clicky thing.
     
    grschinon, Mar 23, 2017
    #2
  3. grschinon Win User
    phone video to DVD

    I use ffmpeg for all transcoding tasks. It's a command line (and therefore scriptable) tool easily found with google. The command line I'd issue is probably something like this:

    ffmpeg -i input.mp4 -target pal-dvd -aspect 4:3 -ab 192k -ac 2 output.mpg

    And then use whatever standard tools on your system (if it's windows I can't help you) to embed the mpeg data in a DVD structure and burn it to a disc.
     
    grschinon, Mar 23, 2017
    #3
  4. Bree New Member

    How can I 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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How can I use ffmpeg commands in QWinFF?

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