On 2020-04-20 22:55, Michael Koch wrote:

Am 21.04.2020 um 04:09 schrieb Mark Filipak:
I've seen where some use the term "keyframe" but I've never seen a definition.…

I think this is correct, see also here:
https://en.wikipedia.org/wiki/Key_frame

One kind of documentation that I haven't seen around ffmpeg which I think might be very helpful is a glossary. The ffmpeg documentation uses many technical terms without defining them, or even pointing to an conceptual overview that helps a new user understands the abstractions and terminology used in ffmpeg code and docs.

My first nominations for a glossary: "PTS", "timebase", "muxer", "demuxer". Also "frame" and "field", per recent threads here. And "GOP", "I-frames", and "B-frames".

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