![]() In this case, you could just copy the content without re-encoding. You could split your video sequence into segments that contain arbitrary number of GOPs (sequence of frames starting with IDR frame with length to next IDR) each. The simplest way to make a cut is to get content between IDR frames. If you are splitting a large file into several sections, you may want to overlap your clips by several seconds to ensure you won’t lose any keyframes as you re-render or assemble your video.General speaking, you can not split already encoded video into some chunks with arbitrary length without re-encoding. This is, unfortunately, a known issue and nearly impossible to work around.Ī solution: simply ensure that you are cutting a few seconds (3-5 should suffice) around the clip you wish to extract. Keyframes occur at regular intervals in a media file, and if you happen to cut between to keyframes, the information needed to display the video correctly will be missing. This is because the first frame of your clipped file may not be a keyframe – a video frame that contain meta/transition information regarding the frames. Eventually, after 2 or 3 seconds, the video will ‘kick in’ and play the video as it should be played. Using this command will stream our input file, start at the specified timestamp, clip a file for the length of the specified duration, and copy that clip to the specified file location.Īs you are clipping, you may notice that sometimes your file will start with a blank, empty few seconds with audio in the background.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |