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  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (3141)

  • how to play video with an Image onit in ffmpeg [closed]

    22 mai 2020, par Naveen Kumar

    https://i.stack.imgur.com/Yqt2i.jpg

    



    Need to play a video with an image over it in ffmpeg

    



    i have tried

    



    ffmpeg -i s.mp4 -i l.png -filter_complex 'overlay=10:main_h-overlay_h-10' avi - | ffplay -


    



    but giving "Error initializing complex filters" even though i am using exact sysntax in ffmpeg documentation

    



    


    ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
ffplay version 4.2.2 Copyright (c) 2003-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 's.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2020-01-19T02:20:09.000000Z
  Duration: 00:00:05.29, start: 0.000000, bitrate: 1252 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 1120 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2020-01-19T02:20:09.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 01/18/2020.
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      creation_time   : 2020-01-19T02:20:09.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 01/18/2020.    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
Input #1, png_pipe, from 'l.png':  0KB vq=    0KB sq=    0B f=0/0
  Duration: N/A, bitrate: N/A
    Stream #1:0: Video: png, rgba(pc), 2000x2000 [SAR 3779:3779 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
[AVFilterGraph @ 000001584ea4c180] No such filter: 'overlay=10:main_h-overlay_h-10'
Error initializing complex filters.
Invalid argument
pipe:: Invalid data found when processing input


    


  • FFmpeg recording works on one laptop but not the other

    30 novembre 2019, par Jason T

    The following command :

    ffmpeg -f dshow -framerate 30 -video_size 640x480 -i video="HD Pro Webcam C920" out.mp4​

    works on one laptop (with C920 LogiTech camera) (Im calling it GOOD LAPTOP). It outputs a recorded video. But it will fail on another laptop (called BAD LAPTOP) and by fail on another I mean - it doesnt output a video (see below for output).

    The suggestions are to change parameters based on the specific error that occur on BAD LAPTOP. I have tried many different suggestions but they dont seem to work. Furthermore, they dont provide much insight into the underlying cause of the problem.

    Ive used the same camera on both laptops. Im using static windows binaries downloaded from FFmpeg web-site (veranoe). Please note the versions used below were different but that doesnt appear to matter.

    Trying to diagnose. Anyone have an idea of where the problem may lie. It seems to indicate a problem at the level of the system / camera setup.

    Please note that I’ve updated BAD LAPTOP but still no dice. Also please note that Ive tried this on several systems already and it seems to run ok (i.e., produce an output video)

    BAD LAPTOP :

    $ ffmpeg -y -f dshow -framerate 30 -video_size 640x480 -t 10 -i video="HD Pro Webcam C920" out.mp4
    
ffmpeg version git-2019-11-26-59d264b Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20191125
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
    
  libavutil      56. 36.100 / 56. 36.100
    
  libavcodec     58. 62.100 / 58. 62.100
    
  libavformat    58. 35.100 / 58. 35.100
    
  libavdevice    58.  9.101 / 58.  9.101
    
  libavfilter     7. 67.100 /  7. 67.100
    
  libswscale      5.  6.100 /  5.  6.100
    
  libswresample   3.  6.100 /  3.  6.100
    
  libpostproc    55.  6.100 / 55.  6.100
    
Input #0, dshow, from 'video=HD Pro Webcam C920':
    
  Duration: N/A, bitrate: N/A
    
    Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 30 fps, 30 tbr, 10000k tbn, 10000k tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
video=HD Pro Webcam C920: I/O error
    
[libx264 @ 06cb7a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 06cb7a00] profile High 4:2:2, level 3.0, 4:2:2, 8-bit
    
[libx264 @ 06cb7a00] 264 - core 158 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=12 lookahead_threads=2 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
    
Output #0, mp4, to 'out.mp4':
    
  Metadata:
    
    encoder         : Lavf58.35.100
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv422p, 640x480, q=-1--1, 30 fps, 10000k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc58.62.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

    GOOD LAPTOP :
    ​

    $ ffmpeg -y -f dshow -framerate 30 -video_size 640x480 -t 10 -i video="Logitech HD Pro Webcam C920" out.mp4   
    
ffmpeg version N-92780-gbb586a9703 Copyright (c) 2000-2018 the FFmpeg developers                              
    
  built with gcc 8.2.1 (GCC) 20181201                                                                         
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-ico
    
nv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --en
    
able-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-lib
    
soxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
    
264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvi
    
dstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enabl
    
e-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enab
    
le-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt                                                 
    
  libavutil      56. 25.100 / 56. 25.100                                                                      
    
  libavcodec     58. 42.104 / 58. 42.104                                                                      
    
  libavformat    58. 25.100 / 58. 25.100                                                                      
    
  libavdevice    58.  6.101 / 58.  6.101                                                                      
    
  libavfilter     7. 46.101 /  7. 46.101                                                                      
    
  libswscale      5.  4.100 /  5.  4.100                                                                      
    
  libswresample   3.  4.100 /  3.  4.100                                                                      
    
  libpostproc    55.  4.100 / 55.  4.100                                                                      
    
Input #0, dshow, from 'video=Logitech HD Pro Webcam C920':                                                    
    
  Duration: N/A, start: 35609.500000, bitrate: N/A                                                            
    
    Stream #0:0: Video: mjpeg (Baseline) (MJPG / 0x47504A4D), yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 
    
30 fps, 30 tbr, 10000k tbn, 10000k tbc                                                                        
    
Stream mapping:                                                                                               
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))                                                      
    
Press [q] to stop, [?] for help                                                                               
    
[libx264 @ 000001ec0b750100] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2            
    
[libx264 @ 000001ec0b750100] profile High 4:2:2, level 3.0, 4:2:2, 8-bit                                      
    
[libx264 @ 000001ec0b750100] 264 - core 157 r2935 545de2f - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http
    
://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 ps
    
y_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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 con
    
strained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 k
    
eyint_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                                                                              
    
Output #0, mp4, to 'out.mp4':                                                                                 
    
  Metadata:                                                                                                   
    
    encoder         : Lavf58.25.100                                                                           
    
    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuvj422p(pc), 640x480, q=-1--1, 30 fps, 10000k tbn
    
, 30 tbc                                                                                                      
    
    Metadata:                                                                                                 
    
      encoder         : Lavc58.42.104 libx264                                                                 
    
    Side data:                                                                                                
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1                                            
    
frame=   62 fps= 31 q=29.0 size=       0kB time=00:00:00.10 bitrate=   3.8kbits/s dup=1 drop=0 speed=0.0495x  
    
frame=   77 fps= 30 q=29.0 size=       0kB time=00:00:00.60 bitrate=   0.6kbits/s dup=1 drop=0 speed=0.237x   
    
frame=   92 fps= 30 q=29.0 size=       0kB time=00:00:01.09 bitrate=   0.3kbits/s dup=1 drop=0 speed=0.363x   
    
frame=  107 fps= 30 q=29.0 size=       0kB time=00:00:01.59 bitrate=   0.2kbits/s dup=1 drop=0 speed=0.453x   
    
frame=  168 fps= 30 q=29.0 size=     256kB time=00:00:03.63 bitrate= 577.3kbits/s dup=1 drop=0 speed=0.654x   
    
frame=  183 fps= 30 q=29.0 size=     256kB time=00:00:04.13 bitrate= 507.5kbits/s dup=1 drop=0 speed=0.683x   
    
frame=  198 fps= 30 q=29.0 size=     256kB time=00:00:04.63 bitrate= 452.7kbits/s dup=1 drop=0 speed=0.706x   
    
frame=  213 fps= 30 q=29.0 size=     512kB time=00:00:05.13 bitrate= 817.1kbits/s dup=1 drop=0 speed=0.727x   
    
frame=  228 fps= 30 q=29.0 size=     512kB time=00:00:05.63 bitrate= 744.6kbits/s dup=1 drop=0 speed=0.744x   
    
frame=  243 fps= 30 q=29.0 size=     512kB time=00:00:06.13 bitrate= 683.9kbits/s dup=1 drop=0 speed=0.759x   
    
frame=  259 fps= 30 q=29.0 size=     512kB time=00:00:06.66 bitrate= 629.2kbits/s dup=1 drop=0 speed=0.777x   
    
frame=  274 fps= 30 q=29.0 size=     512kB time=00:00:07.16 bitrate= 585.3kbits/s dup=1 drop=0 speed=0.789x   
    
frame=  289 fps= 30 q=29.0 size=     512kB time=00:00:07.66 bitrate= 547.1kbits/s dup=1 drop=0 speed=0.799x   
    
frame=  301 fps= 30 q=-1.0 Lsize=     973kB time=00:00:09.93 bitrate= 802.7kbits/s dup=1 drop=0 speed=0.975x  
    

    
video:969kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.445649%            
    
[libx264 @ 000001ec0b750100] frame I:4     Avg QP:24.23  size: 13237                                          
    
[libx264 @ 000001ec0b750100] frame P:77    Avg QP:24.67  size:  7807                                          
    
[libx264 @ 000001ec0b750100] frame B:220   Avg QP:26.09  size:  1534                                          
    
[libx264 @ 000001ec0b750100] consecutive B-frames:  2.3%  0.7%  0.0% 97.0%                                    
    
[libx264 @ 000001ec0b750100] mb I  I16..4: 19.6% 70.5%  9.9%                                                  
    
[libx264 @ 000001ec0b750100] mb P  I16..4:  3.6%  3.3%  0.3%  P16..4: 54.9% 11.7%  9.5%  0.0%  0.0%    skip:16
    
.8%                                                                                                           
    
[libx264 @ 000001ec0b750100] mb B  I16..4:  0.1%  0.2%  0.0%  B16..8: 28.2%  1.1%  0.2%  direct: 7.9%  skip:62
    
.2%  L0:51.0% L1:45.9% BI: 3.1%                                                                               
    
[libx264 @ 000001ec0b750100] 8x8 transform intra:56.1% inter:69.3%                                            
    
[libx264 @ 000001ec0b750100] coded y,uvDC,uvAC intra: 35.2% 85.0% 30.8% inter: 9.3% 38.8% 1.5%                
    
[libx264 @ 000001ec0b750100] i16 v,h,dc,p: 32% 34%  8% 27%                                                    
    
[libx264 @ 000001ec0b750100] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 18% 28%  2%  3%  5%  3%  5%  3%               
    
[libx264 @ 000001ec0b750100] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 19%  8%  3%  6% 11%  4%  6%  3%               
    
[libx264 @ 000001ec0b750100] i8c dc,h,v,p: 48% 16% 31%  5%                                                    
    
[libx264 @ 000001ec0b750100] Weighted P-Frames: Y:3.9% UV:1.3%                                                
    
[libx264 @ 000001ec0b750100] ref P L0: 39.0%  6.6% 38.0% 16.3%  0.1%                                          
    
[libx264 @ 000001ec0b750100] ref B L0: 61.8% 30.3%  7.9%                                                      
    
[libx264 @ 000001ec0b750100] ref B L1: 84.4% 15.6%                                                            
    
[libx264 @ 000001ec0b750100] kb/s:790.62                

  • Speed up start of a stream recording with ffmpeg

    15 janvier 2014, par neutron

    I try to record a video stream (from the web or a local webcam stream) and save it to a .mp4 / .flv file. I use FFmpeg with the version"N-59696-gc0a33c4".

    The problem isn't the recording of the stream, it is, how log it tooks to start the recording.

    This are the parameters i used to capture the stream (the stream is some random stream I found on the web) :

    ffmpeg.exe -i mmsh://live.camstreams.com/cscamscape?MSWMExt=.asf -r 25 -t 60 C:\temp\video.mp4

    And leads to this output :

    ffmpeg.exe -i mmsh://live.camstreams.com/cscams
    
cape?MSWMExt=.asf -r 25 -t 60 C:\temp\video.mp4
    
ffmpeg version N-59696-gc0a33c4 Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Jan  8 2014 22:01:50 with gcc 4.8.2 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    
le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
    
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
    
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    
  libavutil      52. 62.100 / 52. 62.100
    
  libavcodec     55. 47.100 / 55. 47.100
    
  libavformat    55. 22.102 / 55. 22.102
    
  libavdevice    55.  5.102 / 55.  5.102
    
  libavfilter     4.  0.103 /  4.  0.103
    
  libswscale      2.  5.101 /  2.  5.101
    
  libswresample   0. 17.104 /  0. 17.104
    
  libpostproc    52.  3.100 / 52.  3.100
    
[wmv3 @ 0275db40] Extra data: 8 bits left, value: 0
    
Input #0, asf, from 'mmsh://live.camstreams.com/cscamscape?MSWMExt=.asf':
    
  Metadata:
    
    title           : Live Fish Cam
    
    WMFSDKNeeded    : 0.0.0.0000
    
    DeviceConformanceTemplate: SP
    
    WMFSDKVersion   : 11.0.5721.5275
    
    IsVBR           : 0
    
  Duration: N/A, start: 3887858.274000, bitrate: 512 kb/s
    
    Stream #0:0(eng): Video: wmv3 (Simple) (WMV3 / 0x33564D57), yuv420p, 640x360
    
, 512 kb/s, 62.50 tbr, 1k tbn, 1k tbc
    
[libx264 @ 0275e400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0275e400] profile High, level 3.0
    
[libx264 @ 0275e400] 264 - core 140 r2377 1ca7bb9 - H.264/MPEG-4 AVC codec - Cop
    
yleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
    
lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
    
e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
    
ma_qp_offset=-2 threads=12 lookahead_threads=2 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 scene
    
cut=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
    
[wmv3 @ 0275db40] Extra data: 8 bits left, value: 0
    
Output #0, mp4, to 'C:\temp\video.mp4':
    
  Metadata:
    
    title           : Live Fish Cam
    
    WMFSDKNeeded    : 0.0.0.0000
    
    DeviceConformanceTemplate: SP
    
    WMFSDKVersion   : 11.0.5721.5275
    
    IsVBR           : 0
    
    encoder         : Lavf55.22.102
    
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 6
    
40x360, q=-1--1, 12800 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (wmv3 -> libx264)
    
Press [q] to stop, [?] for help
    
frame=  148 fps=0.0 q=28.0 size=     228kB time=00:00:03.60 bitrate= 518.3kbits/
    
frame=  151 fps=117 q=28.0 size=     236kB time=00:00:03.72 bitrate= 519.2kbits/
    
frame=  178 fps= 91 q=28.0 size=     298kB time=00:00:04.80 bitrate= 508.3kbits/
    
frame=  204 fps= 64 q=28.0 size=     347kB time=00:00:05.84 bitrate= 487.4kbits/
    
... 
    
... And so on ...

    The problem now is, that it takes around 6-10 seconds until the recording starts after I entered the command.

    Is there a way to speed up this process ?

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