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• FFmpeg MUXING OVERHEAD after 900 seconds h264 & ACC (from Axis Camera) to flv rtmp

  11 août 2013, par user2672844

  Audio and Video works for 900 seconds and then ,muxing Overhead !!!

  video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866%

  AXIS IP CAM -> ffmpeg -> nginx

  ffmpeg -v verbose -i rtsp://root:pass@192.168.0.106/axis-media/media.amp -itsoffset 00:00:05 -acodec copy -ac 1 -ab 64k -ar 16000 -f flv -r 5 -qscale 1 -b 128kB rtmp://192.168.0.107/myapp/test

  I test many Commands with this one , i have the best resoults !!

  Console Output after start the Command :

      ffmpeg -v verbose -i rtsp://root:pass@192.168.0.106/axis-media/media.amp -itsoffset 00:00:05 -acodec copy -ac 1 -ab 64k -ar 16000 -f flv -r 5 -qscale 1 -b 128kB rtmp://192.168.0.107/myapp/test 
  
  ffmpeg version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
  
    built on Mar 30 2013 22:20:06 with gcc 4.7.2
  
    configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.6-1ubuntu2' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libfreetype --enable-gnutls --enable-libgsm --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
  
    libavutil    51. 22. 1 / 51. 22. 1
  
    libavcodec   53. 35. 0 / 53. 35. 0
  
    libavformat  53. 21. 1 / 53. 21. 1
  
    libavdevice  53.  2. 0 / 53.  2. 0
  
    libavfilter   2. 15. 0 /  2. 15. 0
  
    libswscale    2.  1. 0 /  2.  1. 0
  
    libpostproc  52.  0. 0 / 52.  0. 0
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  [rtsp @ 0x63fb20] SDP:
  
  v=0
  
  o=- 1376246125522976 1376246125522976 IN IP4 192.168.0.106
  
  s=Media Presentation
  
  e=NONE
  
  b=AS:50064
  
  t=0 0
  
  a=control:*
  
  a=range:npt=0.000000-
  
  m=video 0 RTP/AVP 96
  
  c=IN IP4 0.0.0.0
  
  b=AS:50000
  
  a=framerate:5.0
  
  a=transform:-1,0,0;0,-1,0;0,0,1
  
  a=control:trackID=1
  
  a=rtpmap:96 H264/90000
  
  a=fmtp:96 packetization-mode=1; profile-level-id=4D0029; sprop-parameter-sets=Z00AKeKQKD9gLcBAQGkHiRFQ,aO48gA==
  
  m=audio 0 RTP/AVP 97
  
  c=IN IP4 0.0.0.0
  
  b=AS:64
  
  a=control:trackID=2
  
  a=rtpmap:97 mpeg4-generic/16000/1
  
  a=fmtp:97 streamtype=5; profile-level-id=15; mode=AAC-hbr; config=1408; sizeLength=13; indexLength=3; indexDeltaLength=3; profile=1; bitrate=64000;
  
  
  
  [rtsp @ 0x63fb20] Estimating duration from bitrate, this may be inaccurate
  
  
  
  Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 90000.00 (180000/2)
  
  Input #0, rtsp, from 'rtsp://root:pass@192.168.0.106/axis-media/media.amp':
  
    Metadata:
  
      title           : Media Presentation
  
    Duration: N/A, start: 0.062063, bitrate: N/A
  
      Stream #0.0: Video: h264 (Main), yuvj420p, 320x240 [PAR 1:1 DAR 4:3], 90k tbr, 90k tbn, 180k tbc
  
      Stream #0.1: Audio: aac, 16000 Hz, mono, s16
  
  Incompatible pixel format 'yuvj420p' for codec 'flv', auto-selecting format 'yuv420p'
  
  [buffer @ 0x641aa0] w:320 h:240 pixfmt:yuvj420p
  
  [avsink @ 0x6512a0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x645540] w:320 h:240 fmt:yuvj420p -> w:320 h:240 fmt:yuv420p flags:0x4
  
  Output #0, flv, to 'rtmp://192.168.0.107/myapp/test':
  
    Metadata:
  
      title           : Media Presentation
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: flv, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 1024 kb/s, 1k tbn, 5 tbc
  
      Stream #0.1: Audio: aac, 16000 Hz, mono
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Press ctrl-c to stop encoding
  
  frame= 1185 fps=  5 q=1.0 Lsize=    3794kB time=236.80 bitrate= 131.2kbits/s    
  
  video:1889kB audio:1825kB global headers:0kB muxing overhead 2.162866%

• av_interleaved_write_frame() unknown error when streaming WebM

  16 avril 2015, par user1475135

  I’m following a guide to live WebM streaming through FFMpeg / FFServer and running into an interesting error. I have tried using a DirectShow webcam source, and also an existing WebM (finite length) video using -vcodec copy. Initially, both will manage to connect to the FFServer (I can see the POST 200 OKs to /feed1.ffm), and maybe even send a frame or two, but then FFMpeg crashes with av_interleaved_write_frame(): Unknown error. (Meanwhile, FFServer appears to be fine.)

  This appears to be an unusual variant of the error - normally it’s more common to get, say, av_interleaved_write_frame(): I/O error (which indicates file corruption). Has anyone seen this error, and better yet, can anyone tell me how to fix it ?

  ---

  FFMpeg commands

  • ffmpeg -re -i univac.webm -vcodec copy -acodec copy -f webm http://[my server]/feed1.ffm
  • ffmpeg -f dshow -i video="[my dshow source]" -f webm http://[my server]/feed1.ffm

  FFserver command

  ffserver -f ffserver.conf

  ffserver.conf

  This is only a slight variation in the one provided in the aforementioned guide.

  Port 8080  
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 5
  
  # MaxBandwidth 10000 
  
  CustomLog -
  
  NoDaemon  
  
  
  
  <feed>       
  
     File ./feed1.ffm   
  
     FileMaxSize 1G  
  
     ACL allow [IP of the machine with ffmpeg]  
  
  </feed>
  
  
  
  <stream> 
  
     Feed feed1.ffm    
  
     Format webm
  
  
  
     # Audio settings
  
     AudioCodec vorbis
  
     AudioBitRate 64   
  
  
  
     # Video settings
  
     VideoCodec libvpx
  
     VideoSize 640x480
  
     VideoFrameRate 30
  
     AVOptionVideo flags +global_header
  
     AVOptionVideo cpu-used 0
  
     AVOptionVideo qmin 10
  
     AVOptionVideo qmax 42
  
     AVOptionVideo quality good
  
     AVOptionAudio flags +global_header
  
     VideoBitRate 400
  
  
  
     # Streaming settings
  
     PreRoll 15
  
     StartSendOnKey
  
  </stream>

  FFserver logs

  avserver version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers

  built on Mar 30 2013 with gcc 4.7.2

  AVserver started

  [current time] - [GET] "/feed1.ffm HTTP/1.1" 200 4149

  [current time] - [POST] "/feed1.ffm HTTP/1.1" 200 4096

• Linux : Webcam capture not fast enough. Ffmpeg dies half way

  19 août 2013, par user763410

  I am trying to capture webcam output in liux/ubuntu. I have a chico webcam (lenovo laptop). I am running inside a VMWARE virtual machine. The capture is not proceeding beyond 10 seconds. can you please help.

  The command I used is :

  $ ffmpeg -y -f video4linux2 -r 20 -s 160x120 -i /dev/video0 -acodec libfaac -ab 128k /tmp/web.avi

  The most important message I am getting is :

  [video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected

  Complete message from ffmpeg :

  ffmpeg version N-55159-gf118b41 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Aug 18 2013 09:09:13 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
    configuration: --enable-libass --prefix=/opt/ffmpeg --enable-debug --enable-libfreetype
  
    libavutil      52. 40.100 / 52. 40.100
  
    libavcodec     55. 19.100 / 55. 19.100
  
    libavformat    55. 12.102 / 55. 12.102
  
    libavdevice    55.  3.100 / 55.  3.100
  
    libavfilter     3. 82.100 /  3. 82.100
  
    libswscale      2.  4.100 /  2.  4.100
  
    libswresample   0. 17.103 /  0. 17.103
  
  [video4linux2,v4l2 @ 0x9e43fa0] The V4L2 driver changed the video from 160x120 to 320x240
  
  [video4linux2,v4l2 @ 0x9e43fa0] The driver changed the time per frame from 1/20 to 1/15
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 6424.338678, bitrate: 18432 kb/s
  
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 18432 kb/s, 15 fps, 15 tbr, 1000k tbn, 1000k tbc
  
  Codec AVOption ab (set bitrate (in bits/s)) specified for output file #0 (/tmp/web.avi) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
  
  Output #0, avi, to '/tmp/web.avi':
  
    Metadata:
  
      ISFT            : Lavf55.12.102
  
      Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240, q=2-31, 200 kb/s, 20 tbn, 20 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo -> mpeg4)
  
  Press [q] to stop, [?] for help
  
  [video4linux2,v4l2 @ 0x9e43fa0] The v4l2 frame is 46448 bytes, but 153600 bytes are expected
  
  /dev/video0: Invalid data found when processing input
  
  frame=   29 fps= 14 q=3.5 Lsize=      87kB time=00:00:01.45 bitrate= 490.0kbits/s    
  
  video:80kB audio:0kB subtitle:0 global headers:0kB muxing overhead 7.760075%
  
  [video4linux2,v4l2 @ 0x9e43fa0] Some buffers are still owned by the caller on close.