Is it possible to render without re-encoding?
I sometimes (often) use Cinelerra just to sync external audio to a video, or to precisely trim a video. Is there a way to render without re-encoding in this case?
With FFmpeg it is possible to define the start time as well as the duration of each individual track. The tracks will then only be cut and copied without loss. But this is complicated and has to be checked each time with the resulting new AV file. For simple cuts, Avidemux is more comfortable, and Avidemux also handles smart rendering.
And in addition to the solutions already mentioned, the solution for pros should also be mentioned. The combination of Ardour and Xjadeo is better suited for the precise synchronization of finished videos, because you can work with CD frames instead of video frames. However, it is only worth the effort if the audio data is lossless.
thanks a lot guys, i'll check these options out.
Many friends around me are using Joyoshare Media Cutter to cut and trim videos/audios without re-encoding in lossless quality.
Joyoshare video splitter can trim the video by frame, add audio track to the videos without re-encoding, and certainly will not do damage to the quality of the video.
This proprietary "video splitter" doesn't offer a version for Linux (only Windows and Mac). I really don't see the relevance of suggesting it on this forum ... A specialized site for video editing under Linux with free software!