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Sur d’autres sites (9656)

  • Merge video with ffmpeg

    17 mars 2017, par Björn

    I have tried this command :
    ffmpeg -i 'concat:10.mov|11.mov' -codec copy out.mov
    The output file out.mov only shows whats in the first movie (10.mov).

    Been googling for several hours and tried lots of things but nothing works. I want this done without re-encoding the files. Just merge with the same codec

    ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
     built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
     libavutil      55. 34.101 / 55. 34.101
     libavcodec     57. 64.101 / 57. 64.101
     libavformat    57. 56.101 / 57. 56.101
     libavdevice    57.  1.100 / 57.  1.100
     libavfilter     6. 65.100 /  6. 65.100
     libavresample   3.  1.  0 /  3.  1.  0
     libswscale      4.  2.100 /  4.  2.100
     libswresample   2.  3.100 /  2.  3.100
     libpostproc    54.  1.100 / 54.  1.100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff678802600] Found duplicated MOOV Atom. Skipped it
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'concat:10.mov|11.mov':
     Metadata:
       creation_time   : 2017-03-17T12:15:22.000000Z
       major_brand     : qt<br />
       minor_version   : 537134592
       compatible_brands: qt<br />
     Duration: 00:00:29.96, start: 0.000000, bitrate: 140810 kb/s
       Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720, 116735 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50 tbr, 5k tbn, 5k tbc (default)
       Metadata:
         handler_name    : Telestream Inc. Telestream Media Framework - Local 99.99.999999
         encoder         : Apple ProRes 422
    Output #0, mov, to 'out.mov':
     Metadata:
       compatible_brands: qt<br />
       major_brand     : qt<br />
       minor_version   : 537134592
       encoder         : Lavf57.56.101
       Stream #0:0: Video: prores (apcn / 0x6E637061), yuv422p10le, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 116735 kb/s, 50 fps, 50 tbr, 10k tbn, 5k tbc (default)
       Metadata:
         handler_name    : Telestream Inc. Telestream Media Framework - Local 99.99.999999
         encoder         : Apple ProRes 422
    Stream mapping:
     Stream #0:0 -> #0:0 (copy)
    Press [q] to stop, [?] for help
    frame= 1498 fps=0.0 q=-1.0 Lsize=  426938kB time=00:00:29.94 bitrate=116815.8kbits/s speed=50.8x<br />
    video:426930kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001997%

    Any ideas ? Would make my life very much easier if I got this to work :)

  • Cortex-A7 instruction cycle timings

    15 mai 2014, par Mans — ARM

    The Cortex-A7 ARM core is a popular choice in low-power and low-cost designs. Unfortunately, the public TRM does not include instruction timing information. It does reveal that execution is in-order which makes measuring the throughput and latency for individual instructions relatively straight-forward. The table below lists the measured issue cycles … Continue reading →

  • ffmpeg stream ip cam from rtsp to http

    15 mars 2017, par mihalp

    I’m trying to restream ip camera from home network to webpage (sort of video player in wordpress). I have rtsp url of camera and i want to have an output in http. It’s bothering me for 2 days now and i’m not sure what i’m missing...
    My ffserver.conf file :

    HTTPPort 8090                      # Port to bind the server to
    
HTTPBindAddress 0.0.0.0
    
MaxHTTPConnections 2000
    
MaxClients 1000
    
MaxBandwidth 10000             # Maximum bandwidth per client
    
RTSPPort 8002
    

    
                             # set this high enough to exceed stream bitrate
    
CustomLog -
    

    
<feed>
    
     File /tmp/cam.ffm
    
     FileMaxSize 10G
    
     ACL allow 192.168.0.0 192.168.255.255
    
  </feed>
    

    

    
<stream>
    
     Feed cam.ffm
    
     Format mpeg
    
     VideoCodec libx264
    
     VideoSize 1280x720
    
     VideoFrameRate 6
    
     VideoBufferSize 40
    
     AVOptionVideo flags +global_header
    
     PreRoll 15
    
     StartSendOnKey
    
     VideoBitRate 4096
    
     NoAudio
    
</stream>
    

    
<stream>            # Server status URL
    
   Format status
    
   # Only allow local people to get the status
    
   ACL allow localhost
    
   ACL allow 192.168.0.0 192.168.255.255
    
</stream>
    

    
<redirect>    # Just an URL redirect for index
    
   # Redirect index.html to the appropriate site
    
   URL url/
    
</redirect>

    When i enter ffserver -f /etc/ffserver.conf, i get :

    root@test:/tmp# ffserver -f /etc/ffserver.conf
    
ffserver version 2.6.9 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.9.2 (Debian 4.9.2-10)
    
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libiec61883 --enable-vaapi --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
    
  libavutil      54. 20.100 / 54. 20.100
    
  libavcodec     56. 26.100 / 56. 26.100
    
  libavformat    56. 25.101 / 56. 25.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 11.102 /  5. 11.102
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
/etc/ffserver.conf:30: Setting default value for video bit rate tolerance = 1024000. Use NoDefaults to disable it.
    
/etc/ffserver.conf:30: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
    
/etc/ffserver.conf:30: Setting default value for video max rate = 8192000. Use NoDefaults to disable it.
    
Wed Mar 15 20:23:41 2017 FFserver started.

    and when i enter ffmpeg -i rtsp://<ip of="of" camera="camera">:8002 http://<ip of="of" this="this">:8090/cam.ffm</ip></ip>, happens nothing.

    I can also reach http://<ip of="of" my="my" server="server">:8090/status.html</ip>, but no luck with http://<ip of="of" my="my" server="server">:8090/cam.mpg</ip>.

    Any suggestions ?

    Thank you !

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