如何使用 libvlc API 或 FFmpeg API 提取音频/视频剪辑？

Question

I am supporting a C++/Qt application that uses libvlc to playback audio/video streams. My task is to enhance the application to allow the users to extract video clips by setting start / end times and capturing the video in between to a file.

I've implemented the start/end markers, and can seek the audio/video to the correct times for playback. My problem now is to somehow capture this stream to a file in a variety of formats / compressions.

I've been searching through the Doxygen links in libvlc, and the documentation for FFmpeg, but I don't see any API functions to extract audio/video clips to a file. I've also studied this example , but it doesn't do capture. Is there another example out there for doing capture?

Can someone point me to the API, or to an example of how to achieve this?

I see the answer to this question but the sample project is a dead link.

Answer 1

ffmpeg supports clipping of video file and conversion of clips to desired format. By providing start time (with -ss parameter) and duration (with -t parameter) you can actually clip video within 'ss to t' seconds.