Slightly smaller are near lossless codecs like ProRes. Lossless all-keyframe codecs can be truly lossless and easily concatenated but the files will be very large. The ffmpeg website states - "All files must have the same streams (same codecs, same time base, etc.)."Īny advice on the best "standardised" encoding to use for all the extractions ?Īny advice on the best "standardised" encoding to use for all the extractions ? Which codec you use depends on your needs. This operation will be automated and will be required to be done constantly - time is of the essence I will use ffmpeg concat demuxer to quickly join the small 'Master' video clips from PART ONE into larger single videos. I am not concerned about size of the files or time it takes to create the master clips although I wish to maintain the original quality. I will not be able to split the file on a key frame so plan to use ffmpeg to re-encode without frozen frames. I would like to maintain the original quality and do not require any existing Audio or Metadata. The clips require exact timing (ms) but are only around 10secs long. I have a large number of downloaded files predominantly H264 encoded in mp4 and mkv containers where I need to extract small master video clips. I am hoping someone can give some advice on a solution with requirements that come in two parts.
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