I am trying to give an MP4 file an alternate soundtrack that is stored in an MP3 file. I tried to use the command:
ffmpeg -i video_input.mp4 -i music.mp3 -map 0:v -map 1:a -c:v copy -c:a copy video_output-combined.mp4 -y
The command works, but the video output file plays for about 1:20 and then the video freezes. The audio continues to play. My media player is the latest 64-bit VLC under Windows. FFMPEG is the latest Windows build.
Is there something wrong with my command?
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