Recherche avancée

Sur d’autres sites (7040)

• av_interleaved_write_frame() : Immediate exit requested when streaming WebM

  21 décembre 2013, par kd0hdf

  Ok, so I am trying to stream live video from my HD Homerun Prime (a network tv tuner that outputs mpeg2 video) to the web as WebM with ffserver. However, when I start ffmpeg it will run normally for a few seconds (and even output video through ffserver) then after 2-3 seconds it will freeze and I have to use ctrl+c to get back to a prompt.What am I missing here ? Sorry if this is a total newbie question.

  I should also mention I followed a tutorial here : https://www.virag.si/2012/11/streaming-live-webm-video-with-ffmpeg/

  FFmpeg command

  new@Desktop:~$ ffmpeg -i <network tuner="tuner"> <ffserver>
  
  ffmpeg version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
  
    configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  
    libavutil      52. 58.100 / 52. 58.100
  
    libavcodec     55. 45.101 / 55. 45.101
  
    libavformat    55. 22.100 / 55. 22.100
  
    libavdevice    55.  5.102 / 55.  5.102
  
    libavfilter     3. 92.100 /  3. 92.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  [mpegts @ 0x326f980] Could not find codec parameters for stream 0 (Unknown: none (ETV1 / 0x31565445)): unknown codec
  
  Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
  
  [mpegts @ 0x326f980] Could not find codec parameters for stream 1 (Unknown: none (ETV1 / 0x31565445)): unknown codec
  
  Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
  
  [mpegts @ 0x326f980] Could not find codec parameters for stream 4 (Unknown: none ([134][0][0][0] / 0x0086)): unknown codec
  
  Consider increasing the value for the &#39;analyzeduration&#39; and &#39;probesize&#39; options
  
  Input #0, mpegts, from &#39;http://192.168.0.199:5004/auto/v39&#39;:
  
    Duration: N/A, start: 85618.589122, bitrate: 192 kb/s
  
    Program 8 
  
      Stream #0:0[0x1093]: Unknown: none (ETV1 / 0x31565445)
  
      Stream #0:1[0x1094]: Unknown: none (ETV1 / 0x31565445)
  
      Stream #0:2[0x1095]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 704x480 [SAR 10:11 DAR 4:3], max. 15000 kb/s, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
  
      Stream #0:3[0x1096](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 192 kb/s
  
      Stream #0:4[0x1097]: Unknown: none ([134][0][0][0] / 0x0086)
  
  [libvpx @ 0x3275060] v1.2.0
  
  Output #0, ffm, to &#39;http://localhost:8090/feed1.ffm&#39;:
  
    Metadata:
  
      creation_time   : now
  
      encoder         : Lavf55.22.100
  
      Stream #0:0(eng): Audio: vorbis (libvorbis), 22050 Hz, mono, fltp, 64 kb/s
  
      Stream #0:1: Video: vp8 (libvpx), yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=10-42, 1000 kb/s, 1000k tbn, 29.97 tbc
  
  Stream mapping:
  
    Stream #0:3 -> #0:0 (ac3 -> libvorbis)
  
    Stream #0:2 -> #0:1 (mpeg2video -> libvpx)
  
  Press [q] to stop, [?] for help
  
  ^Cav_interleaved_write_frame(): Immediate exit requested70 bitrate= 936.1kbits/s dup=51 drop=0    
  
  Received signal 2: terminating.
  
  new@Desktop:~$ 
  
  </ffserver></network>

  FFserver configuration :

  Port 8090                      # Port to bind the server to
  
  BindAddress 0.0.0.0
  
  MaxHTTPConnections 2000
  
  MaxClients 1000
  
  MaxBandwidth 10000             # Maximum bandwidth per client
  
                                 # set this high enough to exceed stream bitrate
  
  CustomLog -
  
  NoDaemon                       # Remove this if you want FFserver to daemonize after start
  
  
  
  <feed>               # This is the input feed where FFmpeg will send
  
     File /tmp/feed1.ffm         # video stream.
  
     FileMaxSize 1G              # Maximum file size for buffering video
  
     #ACL allow 127.0.0.1         # Allowed IPs
  
  </feed>
  
  
  
  <stream>              # Output stream URL definition
  
     Feed feed1.ffm              # Feed from which to receive video
  
     Format webm
  
  
  
     # Audio settings
  
     AudioCodec vorbis
  
     AudioBitRate 64             # Audio bitrate
  
  
  
     # Video settings
  
     VideoCodec libvpx
  
     VideoSize 720x576           # Video resolution
  
     VideoFrameRate 25           # Video FPS
  
     AVOptionVideo flags +global_header  # Parameters passed to encoder
  
                                         # (same as ffmpeg command-line parameters)
  
     AVOptionVideo cpu-used 0
  
     AVOptionVideo qmin 10
  
     AVOptionVideo qmax 42
  
     AVOptionVideo quality good
  
     AVOptionAudio flags +global_header
  
     PreRoll 15
  
     StartSendOnKey
  
     VideoBitRate 1000            # Video bitrate
  
  </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 <removed url="url" to="to" ffmpeg="ffmpeg" homepage="homepage">
  
  </removed></redirect>

  ...and for the FFserver side

  new@Desktop:/var/www$ ffserver -d -f /etc/ffserver.conf
  
  ffserver version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
  
    configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
  
    libavutil      52. 58.100 / 52. 58.100
  
    libavcodec     55. 45.101 / 55. 45.101
  
    libavformat    55. 22.100 / 55. 22.100
  
    libavdevice    55.  5.102 / 55.  5.102
  
    libavfilter     3. 92.100 /  3. 92.100
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Fri Dec 20 23:53:20 2013 FFserver started.
  
  Fri Dec 20 23:53:29 2013 127.0.0.1 - - New connection: GET /feed1.ffm
  
  Fri Dec 20 23:53:29 2013 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175

• avcodec/vqavideo : check destination size on all exit pathes

  21 décembre 2013, par Michael Niedermayer

  avcodec/vqavideo : check destination size on all exit pathes
  Fixes part of msan_uninit-mem_7f841fe2ab3b_4608_cow2_1.vqa
  
  Found-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/vqavideo.c

• FFMPEG JNI wrapper causes Android app exit

  5 décembre 2013, par user3043703

  I'm writing a JNI wrapper to use FFMPEG as a library in my Android project. I'm mainly using as references the halfninja project (and some forks) and this useful guide. I'm making a lot of personalizations but I got a working version with some additional codecs, the only problem is that, after FFMPEG ends, it causes my application to quit with no errors and I'd like to avoid this (for example to invoke FFMPEG again). Looking at the halfninja wrapper, the line of code exit(ret) ; from the cmdutils.c file is commented in the function void exit_program(int ret) but if I do the same with the latest (2.1.1) version of FFMPEG it causes me a signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 6f632494 error. My code looks like this :

  void exit_program(int ret)
  
  {
  
     if (program_exit)
  
        program_exit(ret);
  
  
  
     //exit(ret);
  
    //if I uncomment this the app automatically exits without errors
  
  }

  I see that both my references are a little old, also refering to a very old release of FFMPEG and it seems that meanwhile the source code changed a lot. I invoke FFMPEG through the JNI wrapper inserted in a new thread in the application code.

  All I'd like to know is : there's a way to avoid the automatic exit of my application after the end of FFMPEG thread ?