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• Android live streaming multicast

  10 mars 2016, par user1573559

  I have built a Android application based on FFMPEG, reference http://www.roman10.net/how-to-build-android-applications-based-on-ffmpeg-by-an-example/.
  Now, I want to live streaming multicast ?
  How to convert multicast to unicast url to live streaming ?
  Please suggest.

• FFmpeg saving rtmp live stream cuts off after 3 minutes

  20 janvier 2013, par user1636922

  I was playing with ffmpeg and was able to save a live stream to a file. The command to do so is :

  ffmpeg -re -i "rtmp://<ip addr="addr">/livestream live=1" -f h264 test.flv
  
  </ip>

  However, I have tested this twice, and both times ffmpeg stops after grabbing 3:28 worth of live video.

  The entire output is here :

  bash-4.2$ ffmpeg -re -i "rtmp://<ip addr="addr">/livestream live=1" -vcodec libx264 -f h264 test.flv
  
  WARNING: gnome-keyring:: couldn&#39;t connect to: /home/me/.cache/keyring-bpajcJ/pkcs11: No such file or directory
  
  ffmpeg version 0.10.4 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on Jul 20 2012 22:01:52 with gcc 4.7.0 20120507 (Red Hat 4.7.0-5)
  
    configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib --mandir=/usr/share/man --arch=i686 --extra-cflags=&#39;-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom -fasynchronous-unwind-tables&#39; --enable-bzlib --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enable-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib --cpu=i686 --enable-runtime-cpudetect
  
    libavutil      51. 35.100 / 51. 35.100
  
    libavcodec     53. 61.100 / 53. 61.100
  
    libavformat    53. 32.100 / 53. 32.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 61.100 /  2. 61.100
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0.  6.100 /  0.  6.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  WARNING: gnome-keyring:: couldn&#39;t connect to: /home/me/.cache/keyring-bpajcJ/pkcs11: No such file or directory
  
  Metadata:
  
    videocodecid          avc1
  
    width                 320.00
  
    height                240.00
  
    frameWidth            320.00
  
    frameHeight           240.00
  
    displayWidth          320.00
  
    displayHeight         240.00
  
    framerate             29.97
  
  trackinfo:
  
    timescale             90000.00
  
    language              eng
  
  sampledescription:
  
    sampletype            H264
  
    type                  video
  
    profile-level-id      42e00c
  
    sprop-parameter-sets  Z0LgDNoFB+wEQAAC7sAAr8gh,aM4zyA==
  
    description           {H264CodecConfigInfo: profile: "Baseline", level: 1.2, frameSize: 320x240, displaySize: 320x240, PAR: 1:1, frameRate: 29.97}
  
  rtpsessioninfo:
  
    name                  H264 Stream 1
  
    origin                - 1486490083 118668671 IN IP4 10.93.183.3
  
    timing                0 0
  
    protocolversion       0
  
  attributes:
  
    range                 npt=now-
  
  [flv @ 0x9578ee0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, flv, from &#39;rtmp://<ip addr="addr">/livestream live=1&#39;:
  
    Duration: N/A, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 14.99 tbr, 1k tbn, 59.94 tbc
  
  [buffer @ 0x99ee900] w:320 h:240 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
  
  [libx264 @ 0x9584540] using SAR=1/1
  
  [libx264 @ 0x9584540] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 0x9584540] profile High, level 1.2
  
  Output #0, h264, to &#39;test.flv&#39;:
  
    Metadata:
  
      encoder         : Lavf53.32.100
  
      Stream #0:0: Video: h264, yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=-1--1, 90k tbn, 14.99 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
  Press [q] to stop, [?] for help
  
  RTMP_ReadPacket, failed to read RTMP packet body. len: 16582bitrate= 212.1kbits/s    
  
  frame= 3111 fps= 15 q=-2.0 Lsize=    5385kB time=00:03:27.47 bitrate= 212.6kbits/s    
  
  video:5385kB audio:0kB global headers:0kB muxing overhead 0.000000%
  
  [libx264 @ 0x9584540] frame I:13    Avg QP:18.70  size: 31866
  
  [libx264 @ 0x9584540] frame P:1908  Avg QP:22.29  size:  2392
  
  [libx264 @ 0x9584540] frame B:1190  Avg QP:29.24  size:   451
  
  [libx264 @ 0x9584540] consecutive B-frames: 39.5% 24.0% 13.0% 23.4%
  
  [libx264 @ 0x9584540] mb I  I16..4:  0.2%  1.2% 98.6%
  
  [libx264 @ 0x9584540] mb P  I16..4:  0.0%  0.0%  0.7%  P16..4: 22.0%  3.5%  2.6%  0.0%  0.0%    skip:71.2%
  
  [libx264 @ 0x9584540] mb B  I16..4:  0.0%  0.0%  0.2%  B16..8: 15.6%  2.8%  1.1%  direct: 1.3%  skip:78.9%  L0:47.0% L1:42.2% BI:10.8%
  
  [libx264 @ 0x9584540] 8x8 transform intra:2.2% inter:8.5%
  
  [libx264 @ 0x9584540] coded y,uvDC,uvAC intra: 98.0% 94.9% 73.9% inter: 14.5% 16.0% 11.3%
  
  [libx264 @ 0x9584540] i16 v,h,dc,p:  0% 50% 17% 33%
  
  [libx264 @ 0x9584540] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  7% 21% 11%  3% 13%  6% 21%  4% 14%
  
  [libx264 @ 0x9584540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 11% 21% 14%  5% 11%  7% 14%  5% 12%
  
  [libx264 @ 0x9584540] i8c dc,h,v,p: 65% 15% 10% 10%
  
  [libx264 @ 0x9584540] Weighted P-Frames: Y:0.5% UV:0.1%
  
  [libx264 @ 0x9584540] ref P L0: 80.8% 10.4%  7.6%  1.2%  0.0%
  
  [libx264 @ 0x9584540] ref B L0: 94.9%  4.8%  0.2%
  
  [libx264 @ 0x9584540] ref B L1: 96.4%  3.6%
  
  [libx264 @ 0x9584540] kb/s:212.48
  
  </ip></ip>

  Although I don't see any errors. It just looks like ffmpeg thought the stream had ended ? But that's not possible since it's a live stream.

• slide show of images using ffmpeg [on hold]

  24 juillet 2013, par Sabyasachi Ghosh

  I want to create a slide show of images using ffmpeg. have tried something like this

  ffmpeg -r 20 -f image2 -i images%d.png -y -s 320x240 -aspect 4:3 out.mp4

  it creates the out.mp4 file but the images are vanished very quickly.