On 02/05/2020 09:37 AM, Moritz Barsnick wrote:
Hi, Moritz, and Thanks.
On Tue, Feb 04, 2020 at 23:17:28 -0500, Mark Filipak wrote:
This:
>ffmpeg -ss 2:00 -i g:\VIDEO_TS\VTS_02_2.VOB -filter:v idet -frames:v
900 -an -f rawvideo -y NUL
produces the listing at the bottom -- it is that listing that I'm trying
to pipe.
With "listing", do you mean these lines?
[Parsed_idet_0 @ 0000015ef0c72840] Repeated Fields: Neither: 772 Top: 66
Bottom: 63
[Parsed_idet_0 @ 0000015ef0c72840] Single frame detection: TFF: 687 BFF:
1 Progressive: 159 Undetermined: 54
[Parsed_idet_0 @ 0000015ef0c72840] Multi frame detection: TFF: 901 BFF: 0
Progressive: 0 Undetermined: 0
These are emitted by the idet filter using ffmpeg's logging mechanism,
which goes to stderr (the shell's standard error stream). You cannot
change that target from the ffmpeg command line tool.
Redirection to a file doesn't work, either.
To capture the log messages behind a '|' pipe, you need to redirect the
stderr stream to stdout. I have no idea how to do that on Windows. A
search on the net tells me to use "2>&1", like in a Unix Bourne shell.
Thanks! This:
ffmpeg -ss 2:00 -i %1 -filter:v idet -frames:v 900 -an -f rawvideo -y
NUL 2>&1 | FINDSTR "Parsed_idet"
works. (At the bottom of this message is my script and its output.)
What I'm trying to do is find where a video switches between hard- &
soft-telecine. I could dump the applicable frame metadata
progressive_sequence
picture_structure
top_field_first
repeat_first_field
progressive_frame
and interpret the dump via a script, but I haven't found a way to dump
the metadata.
Thanks for your help.
===== SCRIPT =====
@ECHO.
@ECHO ======================= 2 minutes =======================
@ffmpeg -hide_banner -ss 2:00 -i %1 -filter:v idet -frames:v 900 -an -f
rawvideo -y NUL 2>&1 | FINDSTR "Input Output Video: frame= Parsed_idet"
@ECHO.
@ECHO ======================= 6 minutes =======================
@ffmpeg -hide_banner -ss 6:00 -i %1 -filter:v idet -frames:v 900 -an -f
rawvideo -y NUL 2>&1 | FINDSTR "Input Output Video: frame= Parsed_idet"
@ECHO.
@ECHO ====================== 10 minutes =======================
@ffmpeg -hide_banner -ss 10:00 -i %1 -filter:v idet -frames:v 900 -an -f
rawvideo -y NUL 2>&1 | FINDSTR "Input Output Video: frame= Parsed_idet"
@ECHO.
@ECHO ====================== 14 minutes =======================
@ffmpeg -hide_banner -ss 14:00 -i %1 -filter:v idet -frames:v 900 -an -f
rawvideo -y NUL 2>&1 | FINDSTR "Input Output Video: frame= Parsed_idet"
@ECHO.
@ECHO ====================== 18 minutes =======================
@ffmpeg -hide_banner -ss 18:00 -i %1 -filter:v idet -frames:v 900 -an -f
rawvideo -y NUL 2>&1 | FINDSTR "Input Output Video: frame= Parsed_idet"
@ECHO.
@CMD /K
===== SCRIPT OUTPUT =====
======================= 2 minutes =======================
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Output #0, rawvideo, to 'NUL':
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
frame= 900 fps=0.0 q=-0.0 Lsize= 455625kB time=00:00:30.03
bitrate=124291.7kbits/s speed=43.8x
[Parsed_idet_0 @ 00000258997ba500] Repeated Fields: Neither: 772 Top:
66 Bottom: 63
[Parsed_idet_0 @ 00000258997ba500] Single frame detection: TFF: 687
BFF: 1 Progressive: 159 Undetermined: 54
[Parsed_idet_0 @ 00000258997ba500] Multi frame detection: TFF: 901
BFF: 0 Progressive: 0 Undetermined: 0
======================= 6 minutes =======================
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Output #0, rawvideo, to 'NUL':
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
frame= 900 fps=0.0 q=-0.0 Lsize= 455625kB time=00:00:30.03
bitrate=124291.7kbits/s speed= 41x
[Parsed_idet_0 @ 00000213df83a500] Repeated Fields: Neither: 650 Top:
128 Bottom: 123
[Parsed_idet_0 @ 00000213df83a500] Single frame detection: TFF: 714
BFF: 0 Progressive: 169 Undetermined: 18
[Parsed_idet_0 @ 00000213df83a500] Multi frame detection: TFF: 900
BFF: 0 Progressive: 0 Undetermined: 1
====================== 10 minutes =======================
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Output #0, rawvideo, to 'NUL':
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
frame= 900 fps=0.0 q=-0.0 Lsize= 455625kB time=00:00:30.03
bitrate=124291.7kbits/s dup=180 drop=0 speed=47.9x
[Parsed_idet_0 @ 000002029e5aa500] Repeated Fields: Neither: 721 Top:
0 Bottom: 0
[Parsed_idet_0 @ 000002029e5aa500] Single frame detection: TFF: 0
BFF: 0 Progressive: 715 Undetermined: 6
[Parsed_idet_0 @ 000002029e5aa500] Multi frame detection: TFF: 0
BFF: 0 Progressive: 721 Undetermined: 0
====================== 14 minutes =======================
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Output #0, rawvideo, to 'NUL':
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
frame= 900 fps=0.0 q=-0.0 Lsize= 455625kB time=00:00:30.03
bitrate=124291.7kbits/s dup=179 drop=0 speed=56.6x
[Parsed_idet_0 @ 000001f59fc6a500] Repeated Fields: Neither: 720 Top:
1 Bottom: 1
[Parsed_idet_0 @ 000001f59fc6a500] Single frame detection: TFF: 4
BFF: 0 Progressive: 453 Undetermined: 265
[Parsed_idet_0 @ 000001f59fc6a500] Multi frame detection: TFF: 209
BFF: 0 Progressive: 513 Undetermined: 0
====================== 18 minutes =======================
Input #0, mpeg, from 'G:\VIDEO_TS\VTS_02_2.VOB':
Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], Closed Captions, 29.97 fps, 29.97
tbr, 90k tbn, 59.94 tbc
Output #0, rawvideo, to 'NUL':
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480
[SAR 32:27 DAR 16:9], q=2-31, 124291 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
frame= 900 fps=0.0 q=-0.0 Lsize= 455625kB time=00:00:30.03
bitrate=124291.7kbits/s dup=180 drop=0 speed=50.6x
[Parsed_idet_0 @ 000001b91fb9a500] Repeated Fields: Neither: 721 Top:
0 Bottom: 0
[Parsed_idet_0 @ 000001b91fb9a500] Single frame detection: TFF: 0
BFF: 0 Progressive: 690 Undetermined: 31
[Parsed_idet_0 @ 000001b91fb9a500] Multi frame detection: TFF: 0
BFF: 0 Progressive: 721 Undetermined: 0
_______________________________________________
ffmpeg-user mailing list
[email protected]
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
[email protected] with subject "unsubscribe".
