On 01/26/2020 04:04 PM, Carl Eugen Hoyos wrote:
Am So., 26. Jan. 2020 um 22:00 Uhr schrieb Mark Filipak
<[email protected]>:
On 01/26/2020 03:50 PM, Carl Eugen Hoyos wrote:
Am So., 26. Jan. 2020 um 21:19 Uhr schrieb Mark Filipak
<[email protected]>:
On 01/26/2020 03:03 PM, Carl Eugen Hoyos wrote:
Am So., 26. Jan. 2020 um 20:51 Uhr schrieb Mark Filipak
<[email protected]>:
For soft telecined videos, all frames have
'progressive_frame' = 1
I may miss something but since FFmpeg does not "support" soft-telecine
why should there be an interlaced frame?
Yes, ffmpeg does not make soft telecined streams. However, the soft
telecined videos are inputs, not outputs.
I don't think FFmpeg "supports" soft-telecined input streams.
At least not in the way once opon a time defined in an ancient NTSC
standard...
You are confusing soft telecine with hard telecine.
I thought you are...
(hard-telecine encoding and decoding is - of course - supported
by FFmpeg)
No, it's not. ffmpeg makes only frame pictures, not field pictures. Hard
telecine is an interlaced format and ffmpeg doesn't make interlaced output.
It's really moot. I'm not writing about ffmpeg. I'm writing about ffprobe.
Since autumn 1999, nearly 100% of all region 1 DVDs are
soft telecined
And such dvds are progressive if you don't watch on an
(American) crt tv ...
Yes, the DVD VOBs all have the MPEG2 'progressive-frame' metadata bit set.
so, of course, ffmpeg supports soft-telecined inputs.
... which you cannot use with FFmpeg - FFmpeg
therefore will ignore soft-telecine (not "support" it).
I am analyzing videos using ffprobe. I'm not making videos. That 'said',
of course ffmpeg supports soft telecine. Otherwise, it couldn't
decode/transcode any DVDs mastered since 1999.
Carl Eugen
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