[FFmpeg-user] Framerate issues

[Calvin Arndt]

It is clearly apparent to me I don't understand something going on 
here!

I clearly select an output framerate of 7fps.
My camera's set to limit each connection to 7fps (and I have verified 
it is doing so).
The camera I am using is a high end AXIS quite capable of 60fps.
Resultant videos are the full 3600 seconds, but they play in 900 
seconds!
Verified via time time stamp on the images and vlc's playtime.
Why is fps=2.0? Totally not what I selected, nor what is provided by 
camera.
Why is drop=1320. The machine doing this is quite capable of the full 
framerate.
What am I missing?

Thanks in advance


ffmpeg -i http://192.168.2.1:9080/mjpg/video.mjpg -r 7 -t 3600 
recording.avi
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the 
FFmpeg developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
   configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 
--build-suffix=-ffmpeg --toolchain=hardened 
--libdir=/usr/lib/x86_64-linux-gnu 
--incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl 
--enable-shared --disable-stripping --disable-decoder=libopenjpeg 
--disable-decoder=libschroedinger --enable-avresample --enable-avisynth 
--enable-gnutls --enable-ladspa --enable-libass --enable-libbluray 
--enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite 
--enable-libfontconfig --enable-libfreetype --enable-libfribidi 
--enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame 
--enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp 
--enable-libschroedinger --enable-libshine --enable-libsnappy 
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora 
--enable-libtwolame --enable-libvorbis --enable-libvpx 
--enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid 
--enable-libzvbi --enable-openal --enable-opengl --enable-x11grab 
--enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r 
--enable-libx264 --enable-libopencv
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 60.100 / 56. 60.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 40.101 /  5. 40.101
   libavresample   2.  1.  0 /  2.  1.  0
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100
[mjpeg @ 0x11cd0e0] ignoring invalid SAR: 10/11
[mjpeg @ 0x11cd0e0] Changeing bps to 8
Input #0, mjpeg, from 'http://192.168.2.1:9080/mjpg/video.mjpg':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 
720x480, 25 tbr, 1200k tbn, 25 tbc
[swscaler @ 0x1216b40] deprecated pixel format used, make sure you did 
set range correctly
Output #0, avi, to 'recording.avi':
   Metadata:
     ISFT            : Lavf56.40.101
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x480, 
q=2-31, 200 kb/s, 7 fps, 7 tbn, 7 tbc
     Metadata:
       encoder         : Lavc56.60.100 mpeg4
Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
frame=  515 fps=2.0 q=20.7 Lsize=    2069kB time=00:01:13.57 bitrate= 
230.3kbits/s dup=0 drop=1320
video:2051kB audio:0kB subtitle:0kB other streams:0kB global 
headers:0kB muxing overhead: 0.871691%

-- 
Calvin


-- 
  Calvin Arndt
(217) 377-2979
carndt at macksrecycling.com