Re: [FFmpeg-user] Fwd: Get sample rate in mp3 files

[CMG DiGiTaL]

> I'm glad it's now working for you.
>

ok Reino

  and thanks for the help I got from all of you!

Clamarc
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[FFmpeg-user] ABWESENHEITSNOTIZ - OUT-OF-OFFICE REPLY

[Marcel Hinsch]

Herzlichen Dank für Ihre Nachricht. Ich werde vom 25.02.2022 bis
einschließlich 04.03.2022 nicht im Büro sein
und kann Ihr Schreiben daher erst nach meiner Rückkehr beantworten. In
dringenden Fällen wenden Sie sich mit
Ihren Anliegen bitte an Herrn Patrick Obergschwandtner, Leitung / Head of,
kdg newmedia Studios, +43 5634 500 730, patrick.obergschwandt...@kdg.at.

Mit der Bitte um Kenntnisnahme und besten Grüßen

Thank you very much for your message. Unfortunately, I am out of the office
from 25.02.2022 up to and
including 04.03.2022. So I will only be able to respond after I get back.
If the matter is urgent I would kindly
ask you to refer to Mr. Patrick Obergschwandtner, Leitung / Head of, kdg
newmedia Studios, +43 5634 500 730, patrick.obergschwandt...@kdg.at.

With kind regards


Marcel Hinsch
Medienfachmann - Mediendesign

kdg mediascope GmbH
Am kdg campus, Dorf 91
6652 Elbigenalp, Austria
T +43 5634 500 731
marcel.hin...@kdg.at
www.kdg.at

Geschäftsführer:
Michael Hosp
UID ATU 676 11 603
FBG IBK Nr. 388780k

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Re: [FFmpeg-user] PhotoJPEG File doesn't playback properly on Quicktime 7

[Patrick Cusack via ffmpeg-user]

>> I wouldn’t know if this is an ffmpeg or Quicktime 7 issue, but I am 
>> encountering  playback stutter on Quicktime 7 when playing back photo-jpeg 
>> encoded files. I don’t encounter this issue in Quicktime X or with other 
>> players. I only bring this up so I can verify that I am not missing 
>> anything. I am using the following example:
>> 
>> ffmpeg -i moviefile.mov -c:v mjpeg -pix_fmt yuv420p output.mov
>> 
>> How would you recommend I further diagnose this issue?

> please post the complete/unedited command output to the list (see 
> https://ffmpeg.org/mailing-list-faq.html)

I have attached my command line. Again these files only stutter in Quicktime 7. 
Should this be a QT7 issue, then fine, but I would like to know any possibility 
that would cause this.

Thanks

User-MacBook-Pro-2:~ User$ ffmpeg -i 
/Users/User/Documents/Media/1/FF8_SMALL.mov -vf "scale=720x480" -c:v mjpeg 
-pix_fmt yuvj420p output.mov

ffmpeg version N-101101-gc0d0b1c4f6-tessus  https://evermeet.cx/ffmpeg/ 
  Copyright (c) 2000-2021 the FFmpeg developers
 built with Apple clang version 11.0.0 (clang-1100.0.33.17)
 configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus 
--enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom 
--enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype 
--enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa 
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 
--enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine 
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvmaf 
--enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp 
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid 
--enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 
--pkg-config-flags=--static --disable-ffplay
 libavutil  56. 65.100 / 56. 65.100
 libavcodec 58.123.100 / 58.123.100
 libavformat58. 67.100 / 58. 67.100
 libavdevice58. 12.100 / 58. 12.100
 libavfilter 7.106.100 /  7.106.100
 libswscale  5.  8.100 /  5.  8.100
 libswresample   3.  8.100 /  3.  8.100
 libpostproc55.  8.100 / 55.  8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 
'/Users/User/Documents/Media/1/FF8_SMALL.mov':
 Metadata:
   major_brand : qt  
   minor_version   : 512
   compatible_brands: qt  
   encoder : Lavf58.67.100
 Duration: 00:00:30.03, start: 0.00, bitrate: 36139 kb/s
 Stream #0:0(eng): Video: dnxhd (DNXHD) (AVdn / 0x6E645641), yuv422p(tv, 
bt709/unknown/unknown), 1920x1080, 36139 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 
23.98 tbr, 23976 tbn, 23976 tbc (default)
   Metadata:
 handler_name: Apple Video Media Handler
 vendor_id   : FFMP
 encoder : DNxHD  709
 timecode: 00:00:00:00
 Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s
   Metadata:
 handler_name: Apple Video Media Handler
 timecode: 00:00:00:00
File 'output.mov' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (dnxhd (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x7fcb1f4d6000] deprecated pixel format used, make sure you did set 
range correctly
Output #0, mov, to 'output.mov':
 Metadata:
   major_brand : qt  
   minor_version   : 512
   compatible_brands: qt  
   encoder : Lavf58.67.100
 Stream #0:0(eng): Video: mjpeg (jpeg / 0x6765706A), yuvj420p(pc, 
bt709/unknown/unknown, progressive), 720x480 [SAR 32:27 DAR 16:9], q=2-31, 200 
kb/s, 0.04 fps, 11988 tbn (default)
   Metadata:
 handler_name: Apple Video Media Handler
 vendor_id   : FFMP
 timecode: 00:00:00:00
 encoder : Lavc58.123.100 mjpeg
   Side data:
 cpb: bitrate max/min/avg: 0/0/20 buffer size: 0 vbv_delay: N/A
frame=  720 fps=226 q=24.8 Lsize=7871kB time=00:00:29.98 
bitrate=2150.2kbits/s speed=9.43x
video:7867kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing 
overhead: 0.055005%
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Re: [FFmpeg-user] FFMpeg question on Raspberry Pi

[Adam Nielsen via ffmpeg-user]

> We are most interested in being able to group videos by a certain time 
> period, e.g., the motion tripped within a particular time period.  The 
> ideal setup would be looking at the concatenating video with two sliders 
> - one for the beginning and one for the ending and downloading to the 
> phone.  While moving the sliders to see images/time stamps of the video 
> where to start and stop.  The time stamps could be on the original 
> videos.   Is the a video player that might be able to do that?

None that I am aware of but personally I would find this kind of method
difficult to use.  Trail cameras, Zoneminder and other programs tend to
save each motion "event" into a separate file with the time and date in
the filename.  The idea is when you sort your list of video files
alphabetically, the oldest video will be at the top and the newest at
the end.  Each video only contains a recording of the motion - if there
is no motion, nothing is recorded.

At this point you can play each video one by one by double-clicking on
it, or add them all into a playlist in your preferred video player.
By skipping to the next video file (usually one button press), you will
jump directly to the next time the motion sensor triggered.  It makes
it very quick to skip through each video, and if you hit one you are
interested in you can let it play through to watch it in full.  The
following video file will be the next event that happened afterwards, so
it will be very similar to playing one long concatenated video, except
each event is already in a separate file in case you need to send it to
someone else or make a copy of it for future reference.

> Or, even having one slider and being able to look at a time period after 
> that.  For example, the 20 minutes of video following a certain 
> identified point of the concatenating video . . .

Normally these programs will only record video for a short time after
the motion sensor has been triggered.  So if you example you have a
person enter the camera frame, have a sleep, then get up and leave two
hours later, you'll only end up with two events lasting a minute or two
each - first when the person enters the frame and again when they exit.
Possibly another short video file or two if they roll over in their
sleep.  But the point is the cameras don't record continuously so you
can't get 20 minutes after an event that only lasts for a few seconds.

There are other ways to do this (recording continuously and flagging
times when events happen) but this is a different problem and solution,
and at that point there is nothing to concatenate because you have a
continuous recording.

Cheers,
Adam.
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