I started to learn FFmpeg syntax a couple of days ago.
I'm trying to read the official docs, it's not easy.
So I want to build up a video files which consists of different videos, and audios. Let's say I have files below.
I'd like to use specific parts of audio files.
- 2s ~ 24 sec from
- 1m 22s ~ 1m 41s from
- 29s ~ 2m 33s from
Concatenate the selected audio streams into an audio stream.
I'll take the video stream of 2m ~ 2m 32s from
Then video stream is a lot shorter than audio.
(I don't know how much exactly, hopefully FFmpeg can do that for me)
Can FFmpeg do any of the below?
- Take the video streams from
b.mkvand concatenate it with the video streams from a.mp4, so that resulted video stream is as long as the audio. After that mux the audio and video.
Change the duration of the video stream from
a.mp4so that duration of the video and audio are equal.(by changing playback speed of video stream) then mux the audio and video.
Just insert an image file after video streams ends while audio is being played.
P.S.: I tried to express things clearly, but I'm not so good at English. If there is anything you can't understand clearly, please tell me.