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    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
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    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

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    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
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    5 mars 2010, par

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Sur d’autres sites (10929)

  • cv::cudacodec::VideoReader unable to Play rtsp stream

    22 février 2018, par Pawan

    System information

    • OpenCV => 3.3.0
    • Operating System / Platform => Ubuntu 16.04, x86_64
    • Compiler => gcc version 5.4.1 20160904
    • Cuda => 8.0
    • Nvidia card => GTX 1080 Ti
    • ffmpeg details
      • libavutil 55. 74.100 / 55. 74.100
      • libavcodec 57.103.100 / 57.103.100
      • libavformat 57. 77.100 / 57. 77.100
      • libavdevice 57. 7.101 / 57. 7.101
      • libavfilter 6.100.100 / 6.100.100
      • libswscale 4. 7.103 / 4. 7.103
      • libswresample 2. 8.100 / 2. 8.100

    Detailed description

    i am trying to play a rtsp stream using cudacodec::VideoReader

    Rtsp Stream Details ( from vlc )

    stream_details

    this stream plays fine in vlc and cv::VideoCapture but when i try to play it in cudacodec::VideoReader i get a error saying :

    OpenCV Error: Gpu API call (CUDA_ERROR_FILE_NOT_FOUND [Code = 301]) in CuvidVideoSource, file /home/deep/Development/libraries/opencv/opencv/modules/cudacodec/src/cuvid_video_source.cpp, line 66

    OpenCV Error: Assertion failed (init_MediaStream_FFMPEG()) in FFmpegVideoSource, file /home/deep/Development/libraries/opencv/opencv/modules/cudacodec/src/ffmpeg_video_source.cpp, line 101

    Steps to reproduce

    #include <iostream>
    
#include "opencv2/opencv_modules.hpp"
    

    
#if defined(HAVE_OPENCV_CUDACODEC)
    

    
#include <opencv2></opencv2>core.hpp>
    
#include <opencv2></opencv2>cudacodec.hpp>
    
#include <opencv2></opencv2>highgui.hpp>
    

    
int main(int argc, const char* argv[])
    
{
    
    const std::string fname = "rtsp://admin:admin@192.168.1.13/media/video2";
    

    
    cv::namedWindow("GPU", cv::WINDOW_NORMAL);
    

    
    cv::cuda::GpuMat d_frame;
    
    cv::Ptr d_reader = cv::cudacodec::createVideoReader(fname);
    

    
    for (;;)
    
    {
    

    
        if (!d_reader->nextFrame(d_frame))
    
            break;
    

    
        cv::Mat frame;
    
        d_frame.download(frame);
    
        cv::imshow("GPU", frame);
    

    
        if (cv::waitKey(3) > 0)
    
            break;
    
    }
    
    return 0;
    
}
    

    
#else
    
int main()
    
{
    
    std::cout &lt;&lt; "OpenCV was built without CUDA Video decoding support\n" &lt;&lt; std::endl;
    
    return 0;
    
}
    
#endif
    
</iostream>

    I tried debugging it using GDB and saw that in ffmpeg_video_source.cpp bool init_MediaStream_FFMPEG() directly returns without checking the if condition.

    GDB output

    cv::cudacodec::detail::FFmpegVideoSource::FFmpegVideoSource 
    
(this=0x402a20 &lt;_start>, fname=...) at /home/deep/Development/libraries/opencv/opencv/modules/cudacodec/src/ffmpeg_video_source.cpp:98
    
98      cv::cudacodec::detail::FFmpegVideoSource::FFmpegVideoSource(const String&amp; fname) :
    
(gdb) n
    
99          stream_(0)
    
(gdb) n
    
101         CV_Assert( init_MediaStream_FFMPEG() );
    
(gdb) s
    
(anonymous namespace)::init_MediaStream_FFMPEG () at /home/deep/Development/libraries/opencv/opencv/modules/cudacodec/src/ffmpeg_video_source.cpp:94
    
94              return initialized;
    
(gdb) display initialized
    
4: initialized = false
    
(gdb) s
    
95          }

    UPDATE :

    I have solved the problem. solution link

  • ffmpeg command failed

    25 octobre 2015, par Asad kamran

    I am experimenting FFMPEG command to convert any video format to mp4.

    Server admin execute the below command created by me and show me the errors :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    This is error :

    [aac @ 0x2b845a0] The encoder ’aac’ is experimental but experimental
    codecs are not enabled, add ’-strict -2’ if you want to use it.

    how can i avoid this error and also experimental codec, so can any one let me know what can be best codec if i explicitly specify it.

    my ffmpeg and server are as follow :

    ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    developers built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)

    EDIT 1 :
    I change the command a bit and add -c:a copy to copy audio stream as it is but still no hope :

    New command :

    ffmpeg -ss 00:03:00  -i  /video/1444107854.mov -c:v libx264 -c:a copy /video/player/1444107854.mp4  -vframes 1 /video/thumb/1444107854.jpg

    After executing this i got a file of 23k size, apparently as in log it only copy audio stream and no video is added in final output.
    Its Log is as follow :

    > ffmpeg version N-75903-g14573b9 Copyright (c) 2000-2015 the FFmpeg
    
> developers   built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)  
    
> configuration: --enable-libx264 --enable-gpl   libavutil      55. 
    
> 3.100 / 55.  3.100   libavcodec     57.  5.100 / 57.  5.100   libavformat    57.  3.100 / 57.  3.100   libavdevice    57.  0.100 /
    
> 57.  0.100   libavfilter     6. 10.100 /  6. 10.100   libswscale      4.  0.100 /  4.  0.100   libswresample   2.  0.100 /  2.  0.100   libpostproc    54.  0.100 / 54.  0.100 Input #0, mpeg, from
    
> '/video/1444108714.mpg':  
    
> Duration: 00:00:02.14, start: 0.184278, bitrate: 15689 kb/s
    
>     Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], max. 38810 kb/s, 29.97 fps, 29.97 tbr,
    
> 90k tbn, 59.94 tbc
    
>     Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s [swscaler @ 0x347fda0] deprecated pixel format used, make sure you did
    
> set range correctly [libx264 @ 0x34708a0] using SAR=1/1 [libx264 @
    
> 0x34708a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 [libx264
    
> @ 0x34708a0] profile High, level 4.0 [libx264 @ 0x34708a0] 264 - core
    
> 148 r2597 e86f3a1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 -
    
> http://www.videolan.org/x264.html - options: cabac=1 ref=3
    
> deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
    
> mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
    
> deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=34
    
> lookahead_threads=5 sliced_threads=0 nr=0 decimate=1 interlaced=0
    
> bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
    
> b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
    
> keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf
    
> mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
    
> aq=1:1.00 [mp4 @ 0x346f6c0] Codec for stream 1 does not use global
    
> headers but container format requires global headers [mp4 @ 0x346f6c0]
    
> track 1: codec frame size is not set Output #0, mp4, to
    
> '/video/player/1444108714.mp4':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn,
    
> 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 libx264
    
>     Stream #0:1: Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, 5.1(side), 448 kb/s Output #1, image2, to '/video/thumb/1444108714.jpg':  
    
> Metadata:
    
>     encoder         : Lavf57.3.100
    
>     Stream #1:0: Video: mjpeg, yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
    
>     Metadata:
    
>       encoder         : Lavc57.5.100 mjpeg Stream mapping:   Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (libx264))   Stream #0:1 -> #0:1 (copy)   Stream #0:0 -> #1:0 (mpeg2video (native) -> mjpeg (native)) Press [q] to stop, [?] for help [mp4 @ 0x346f6c0]
    
> Non-monotonous DTS in output stream 0:1; previous: 2208, current: 672;
    
> changing to 2209. This may result in incorrect timestamps in the
    
> output file. frame=    0 fps=0.0 q=0.0 Lq=0.0 size=      23kB
    
> time=00:00:00.07 bitrate=2447.5kbits/s video:0kB audio:23kB
    
> subtitle:0kB other streams:0kB global headers:0kB muxing overhead:
    
> 3.457839%

    EDIT 2 :

    ffmpeg -y -i ./1445675270.m4b -c:v libx264  -crf 20 -preset slow -pix_fmt yuv420p -movflags +faststart -c:a libfdk_aac -b:a 128k  ./player/1445675270.mp4 -vframes 1 ./thumb/1445675270.jpg

    Above command output the below message, i will appreciate if you can suggest.

    ffmpeg version git-2015-10-11-49f4967 Copyright (c) 2000-2015 the FFmpeg developers
    
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
    
  configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
    
  libavutil      55.  3.100 / 55.  3.100
    
  libavcodec     57.  5.100 / 57.  5.100
    
  libavformat    57.  3.100 / 57.  3.100
    
  libavdevice    57.  0.100 / 57.  0.100
    
  libavfilter     6. 11.100 /  6. 11.100
    
  libswscale      4.  0.100 /  4.  0.100
    
  libswresample   2.  0.100 /  2.  0.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x31e07c0] stream 0, timescale not set
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './1445675270.m4b':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    creation_time   : 2005-08-01 07:26:16
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
  Duration: 00:02:57.54, start: 0.000000, bitrate: 162 kb/s
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 32 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:1(eng): Subtitle: mov_text (text / 0x74786574), 0 kb/s
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:2(eng): Video: tiff (tiff / 0x66666974), rgb24, 167x166, 126 kb/s, SAR 206:275 DAR 17201:22825, 0.03 fps, 1 tbr, 22050 tbn, 22050 tbc (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : TIFF (Uncompressed)
    
    Stream #0:3(eng): Subtitle: mov_text (tx3g / 0x67337874), 160x160, 0 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
    Stream #0:4: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 167x166 [SAR 1:1 DAR 167:166], 90k tbr, 90k tbn, 90k tbc
    
[swscaler @ 0x3242360] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x3228c40] width not divisible by 2 (167x166)
    
Output #0, mp4, to './player/1445675270.mp4':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #0:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #0:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #0:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #0:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #0:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #0:0(eng): Video: h264, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libx264
    
    Stream #0:1(eng): Audio: aac, 0 channels, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 libfdk_aac
    
Output #1, image2, to './thumb/1445675270.jpg':
    
  Metadata:
    
    major_brand     : M4A 
    
    minor_version   : 0
    
    compatible_brands: M4A mp42isom
    
    comment         : Interview with Janus wireless and their 5 Wi-Fi card packet capturing Linux box. This is a special enhanced podcast (this file plays images and links in iTunes and on iPod color devices).
    
    tool            : ?
    
    title           : MAKE_2005-08-01
    
    artist          : MAKE Magazine
    
    composer        : MAKE Magazine - Phillip Torrone
    
    album           : Interview with Janus Wireless
    
    grouping        : MAKE Magazine enhanced podcast
    
    genre           : Podcast
    
    date            : 2005
    
    Chapter #1:0: start 0.000000, end 17.000000
    
    Metadata:
    
      title           : MAKE Magazine @ DEFCON with JANUS
    
    Chapter #1:1: start 17.000000, end 37.000000
    
    Metadata:
    
      title           : Janus
    
    Chapter #1:2: start 37.000000, end 83.000000
    
    Metadata:
    
      title           : Construction
    
    Chapter #1:3: start 83.000000, end 109.000000
    
    Metadata:
    
      title           : The MAKERs
    
    Chapter #1:4: start 109.000000, end 177.540000
    
    Metadata:
    
      title           : Display
    
    Stream #1:0(eng): Video: mjpeg, none, q=2-31, 128 kb/s, SAR 206:275 DAR 0:0, 1 fps (default)
    
    Metadata:
    
      creation_time   : 2005-08-01 07:26:16
    
      handler_name    : ?Apple Alias Data Handler
    
      encoder         : Lavc57.5.100 mjpeg
    
Stream mapping:
    
  Stream #0:2 -> #0:0 (tiff (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (aac (native) -> aac (libfdk_aac))
    
  Stream #0:2 -> #1:0 (tiff (native) -> mjpeg (native))
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  • How to parse ffmpeg -list_options output to get complete list of formats ?

    9 octobre 2024, par gaamaa

    On my Windows 10, application I use VB6 and ffmpeg.exe to capture video from USB capture device.&#xA;I need to show complete list of supported formats by this capture card.

    &#xA;

    When I use below command I get some list.&#xA;But its looks incomplete for me.

    &#xA;

    &#xA;    ffmpeg -f dshow -list_options true -i video="USB3. 0 capture"&#xA;&#xA;

    &#xA;

    Result :

    &#xA;

    USB3. 0 capture:&#xA; Q:\FFMpeg VB6\f2>ffmpeg -f dshow -list_options true -i video="USB3. 0 capture"&#xA;[dshow @ 087d7480] DirectShow video device options (from video devices)&#xA;[dshow @ 087d7480]  Pin "Capture" (alternative pin name "0")&#xA;vcodec=mjpeg  min s=1920x1080 fps=10 max s=1920x1080 fps=60.0002&#xA;vcodec=mjpeg  min s=1920x1080 fps=10 max s=1920x1080 fps=60.0002&#xA;vcodec=mjpeg  min s=1600x1200 fps=10 max s=1600x1200 fps=60.0002&#xA;vcodec=mjpeg  min s=1600x1200 fps=10 max s=1600x1200 fps=60.0002&#xA;vcodec=mjpeg  min s=1360x768 fps=10 max s=1360x768 fps=60.0002&#xA;vcodec=mjpeg  min s=1360x768 fps=10 max s=1360x768 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x1024 fps=10 max s=1280x1024 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x1024 fps=10 max s=1280x1024 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x960 fps=10 max s=1280x960 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x960 fps=10 max s=1280x960 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x720 fps=10 max s=1280x720 fps=60.0002&#xA;vcodec=mjpeg  min s=1280x720 fps=10 max s=1280x720 fps=60.0002&#xA;vcodec=mjpeg  min s=1024x768 fps=10 max s=1024x768 fps=60.0002&#xA;vcodec=mjpeg  min s=1024x768 fps=10 max s=1024x768 fps=60.0002&#xA;vcodec=mjpeg  min s=800x600 fps=10 max s=800x600 fps=60.0002&#xA;vcodec=mjpeg  min s=800x600 fps=10 max s=800x600 fps=60.0002&#xA;vcodec=mjpeg  min s=720x576 fps=10 max s=720x576 fps=60.0002&#xA;vcodec=mjpeg  min s=720x576 fps=10 max s=720x576 fps=60.0002&#xA;vcodec=mjpeg  min s=720x480 fps=10 max s=720x480 fps=60.0002&#xA;vcodec=mjpeg  min s=720x480 fps=10 max s=720x480 fps=60.0002&#xA;vcodec=mjpeg  min s=640x480 fps=10 max s=640x480 fps=60.0002&#xA;vcodec=mjpeg  min s=640x480 fps=10 max s=640x480 fps=60.0002&#xA;pixel_format=yuyv422  min s=1280x720 fps=10 max s=1280x720 fps=10&#xA;pixel_format=yuyv422  min s=1280x720 fps=10 max s=1280x720 fps=10&#xA;pixel_format=yuyv422  min s=1920x1080 fps=5 max s=1920x1080 fps=5&#xA;pixel_format=yuyv422  min s=1920x1080 fps=5 max s=1920x1080 fps=5&#xA;pixel_format=yuyv422  min s=1600x1200 fps=5 max s=1600x1200 fps=5&#xA;pixel_format=yuyv422  min s=1600x1200 fps=5 max s=1600x1200 fps=5&#xA;pixel_format=yuyv422  min s=1360x768 fps=8 max s=1360x768 fps=8&#xA;pixel_format=yuyv422  min s=1360x768 fps=8 max s=1360x768 fps=8&#xA;pixel_format=yuyv422  min s=1280x1024 fps=8 max s=1280x1024 fps=8&#xA;pixel_format=yuyv422  min s=1280x1024 fps=8 max s=1280x1024 fps=8&#xA;pixel_format=yuyv422  min s=1280x960 fps=8 max s=1280x960 fps=8&#xA;pixel_format=yuyv422  min s=1280x960 fps=8 max s=1280x960 fps= 8&#xA;pixel_format=yuyv422  min s=1024x768 fps=10 max s=1024x768 fps=10&#xA;pixel_format=yuyv422  min s=1024x768 fps=10 max s=1024x768 fps=10&#xA;pixel_format=yuyv422  min s=800x600 fps=5 max s=800x600 fps=20&#xA;pixel_format=yuyv422  min s=800x600 fps=5 max s=800x600 fps=20&#xA;pixel_format=yuyv422  min s=720x576 fps=5 max s=720x576 fps=25&#xA;pixel_format=yuyv422  min s=720x576 fps=5 max s=720x576 fps=25&#xA;pixel_format=yuyv422  min s=720x480 fps=5 max s=720x480 fps=30&#xA;pixel_format=yuyv422  min s=720x480 fps=5 max s=720x480 fps=30&#xA;pixel_format=yuyv422  min s=640x480 fps=5 max s=640x480 fps=30&#xA;pixel_format=yuyv422  min s=640x480 fps=5 max s=640x480 fps=30&#xA;

    &#xA;

    My question is :

    &#xA;

    How to get the proper list in-between min and max ?

    &#xA;

    Eg :&#xA;Please see the below 4 lines.

    &#xA;

     vcodec=mjpeg  min s=1920x1080 fps=10 max s=1920x1080 fps=60.0002&#xA; vcodec=mjpeg  min s=1920x1080 fps=10 max s=1920x1080 fps=60.0002&#xA; vcodec=mjpeg  min s=1600x1200 fps=10 max s=1600x1200 fps=60.0002&#xA; vcodec=mjpeg  min s=1600x1200 fps=10 max s=1600x1200 fps=60.0002&#xA;

    &#xA;

    It says&#xA;min fps=10&#xA;max fps=60.0002

    &#xA;

    Actually it supports below fps :

    &#xA;

    fps=10.00,&#xA;fps=20.00,&#xA;fps=25.00,&#xA;fps=30.00,&#xA;fps=50.00,&#xA;fps=60.00&#xA;

    &#xA;

    How to guess and get the hidden list like : 20, 25, 30 and 50 ?&#xA;If I blindly make a list from guessed values,&#xA;Some format doesn't have fps=25 on the list and ffmpeg throw error !

    &#xA;

    Note :&#xA;I can not use C++ or .NET to dig further.&#xA;Please suggest me some trick to get the proper list from ffmpeg commands only.&#xA;Or any universal guess !

    &#xA;

    enter image description here

    &#xA;

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