This filter is significantly easier to use and customize than the alternatives listed here. ffmpeg-gl-transition is a custom ffmpeg filter which allows you to use GLSL to smoothly transition between two video streams. Users can skip – map and let ffmpeg handle stream selection. ffmpeg -i f01.mp4 -i f02.mp4 -filtercomplex '0:v0:a1:v1:aconcatn2:v1:a1va' -map 'v' -map 'a' output.mp4 This is my understanding of the form of this command from references such as FFmpeg Filters Documentation: concat and Concatenate Videos Together Using FFMPEG. ffmpeg-concat is the easiest way to accomplish what you want and allows you to use a bunch of sexy OpenGL transitions, with the default being crossfade. It also sets the number of output audio streams.įinally, the -map flag in step 5 allows for a custom stream selection in each output file if there are multiple. Similarly, a (default is 0) sets the number of audio streams in each section. All video files in question are between 4 and 20 minutes in length. I am attempting to use the concat filter directly for reasons independent from this question (so -i list.txt is not a valid solution). Next, we follow with v (default is 1), which sets the number of output video streams. ffmpeg filtercomplex concat never completes Ask Question 12 I am trying to concatenate mp4 files into a single file. In step 4, the number of files we want to join is in the value of n (default is 2). Map the resulting audio and video streams to the output.Select the actual streams in a specific order: video and audio from the first, second, and third file.Use -filter_complex to select streams from the input files.ffmpeg -i videofile1.mp4 -i videofile2.mkv -filter complex 0:v:0 0:a:0. Here’s a quick rundown of what’s going on in the command: Video file merging requires that the files you want to merge have the same. To explain the contact filter, we’ll use start.mkv, body.mkv, and rear.mkv with a single audio stream: $ ffmpeg -i start.mkv -i body.mkv -i rear.mkv -filter_complex \
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