On 03/04/2020 06:42 AM, Paul B Mahol wrote:
On 3/4/20, Mark Filipak <markfilipak.windows+ffm...@gmail.com> wrote:
On 03/04/2020 05:34 AM, Paul B Mahol wrote:
On 3/4/20, Mark Filipak <markfilipak.windows+ffm...@gmail.com> wrote:
On 03/04/2020 04:57 AM, Paul B Mahol wrote:
On 3/4/20, Mark Filipak <markfilipak.windows+ffm...@gmail.com> wrote:
Is this a showinfo bug, or am I misinterpreting the results?
For VOBs that are known to be 23.976 FPS, soft-telecined, this command:
'ffprobe -f lavfi movie=VTS_01_1.VOB,showinfo'
reports that they're 59.94 FPS.
The first & last lines of output show this:
"[Parsed_showinfo_1 @ 000001d381f6dc80] config in time_base: 1/90000,
frame_rate: 60000/1001"
" Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 1:1 DAR 3:2], 59.94 tbr, 90k tbn, 90k tbc"
This seems to be a rather big error, if indeed it is an error. At
question is the reliability of ff*.
I trust more ff* than you.
Paul, I trust that your answer indicates that I'm simply misinterpreting
the results.
So, to what does "frame_rate: 60000/1001" refer?
Can not guess without looking and exact same file.
The 'file' is every 23.976 FPS, soft-telecined video I've checked. Mind
you, other ff* functions report them as 29.970 FPS, for example:
"Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m,
progressive), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps,
59.94 tbr, 90k tbn, 59.94 tbc"
whereas MPV reports "FPS: 29.970 (specified) 23.976 (estimated)".
I have been interpreting that as meaning that ff* is reporting metadata
whereas MPV is reporting the actual MPEG2 stream.
'ffprobe -f lavfi movie=VTS_01_1.VOB,showinfo' is the only ff* function
that reports 60000/1001.
23.976 FPS? 29.97 FPS? 59.94 FPS? What am I to believe?
You should believe ffprobe output. Note that video may be VFR, and
than all of this is meaningless.
It's not VFR. ffprobe reports 29.97 FPS, but I'm pretty sure the stream
is actually 23.976 FPS (soft-telecined) as reported by MPV.
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