You can find more info in the concat demuxer documentation or better yet the concat wiki.Īt the moment I don't know if there's a way to do this with a gif file. In my example I do a stream copy for my output (this will work just fine and will be very fast), but you can use the codecs you want for yours (like H264 and AAC like your post). You can also use amerge instead of amix, but your video might cut off early in that case and you have no control over the resulting volume. So, all together will look like this: ffmpeg -f concat -safe 0 -i mylist.txt -i audio.mp3 -c:v copy -c:a copy -shortest output.mp4 The above code applies adelay to delay the audio youre mixing in to start at a certain time (in milliseconds) and then applies amix to add it to the audio already present in the video. FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. You can add the audio within this same command like you do in your post. I suggest that you create a video just a bit longer than your audio track and then use the -shortest option when creating your final video. Step 1: First of all, put all video records to be join in one document envelope and name it MP4 Step 2: Then visit the following web address to download the FFmpeg on your computer: Step 3: After that, get into this MP4 document and open the 'container' record organizer. If your original video is 4 seconds long, then the output will be 12 seconds long. This will generate an mp4 with your original video looping 3 times. ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4 Then you need to use the concat demuxer option. In your case it will be a list of the same video file, like the following. To do this with a video (MP4 or other format) you should use the Concatenate demuxer.įirst create a text file with a list of the paths of the videos you want to concatenate.
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