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• 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.

• Anomalie #2819 : css navigation haute et plugin menus

  3 octobre 2012, par cedric -

  Partiellement réglé dans le futur par http://zone.spip.org/trac/spip-zone/changeset/66466 mais il reste la différence que la dist intègre le div englobant dans l’inclusion, alors que les Z posent l’enbglobant dans le body.html et non dans (...)

• WMAV2 and FFMPEG on iPhone

  14 avril 2012, par user1333656

  Recently, I try to decode audio files on iPhone by using ffmpeg.
  Most audio formats are decoded properly but WMAV2 isn't.
  The decoded file(raw data) can be imported to sound editor like AUDACITY and it is playable but not clear and different with the original track.
  Is this related to ARM floating point ???

  Someone said VBR WMAV2 could cause this kind of prob.
  Can any body give me any clue for this prob ??

  • IOS 5.1
  • XCODE 4.3.1
  • OSX 10.7.3
  • ffmpeg 0.10.1

  configure options
  

       ./configure \
      —extra-ldflags=-L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhon    eOS5.1.sdk/usr/lib/system \
      —disable-doc \
      —disable-ffserver \
      —enable-cross-compile \
      —arch=arm \
      —cpu=cortex-a8 \
      —target-os=darwin \
      —enable-neon \
      —cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc  \
      —as='gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc'  \
      —sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.1.sdk \
      —extra-cflags='-arch armv7 -mfpu=neon' \
      —extra-ldflags='-arch armv7 -mfpu=neon' \
      —enable-pic