[FFmpeg-user] key frame

[Andrew Randrianasulu]

чт, 27 июн. 2024 г., 23:39 Mark Filipak <markfilipak.imdb at gmail.com>:

> Hello All,
>
> I'm considering buying professional video software to evaluate and analyze
> FFmpeg trims and splices
> and for troubleshooting. My objective is to improve my edits, and to
> improve FFmpeg. I'm retired, I
> have plenty of time, I have plenty of money.
>

It really hard to know what is real thing and what is just advertizement,
but may be asking around this site/program will move you closer to your
goal?

https://www.jongbel.com/manual-analysis/mpeg-ts-utils/




>  From here:
>
> https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/uc_system/design/guides/videodg/vidguide/basics.html
> "I-frames are also known as key frames because their content is
> independent of any other frames and
> they can be used as a reference for other frames."
>
> If "key frame" is simply another name for an I-frame, why are there two
> names? pdr0 & Balling at
> trac.ffmpeg.org hint that key frames are specific I-frames with specific
> methods but they don't
> elaborate and I don't want to burden them.
>
> I'd appreciate an explanation of 'key frame', or a link to an existing
> explanation of course. All I
> can find is keyframe animation, which of course is a technique, not an
> MPEG method.
>
> Thank you,
> Mark.
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