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• how create mpeg-ts stream over http with existing hls (stream )

  16 septembre 2019, par xanbi143

  currently i`m using ffmpeg to create hls live stream and the same was delivered by apache server. sample HLS stream url,"http://localhost/cam/live1.m3u8"

  willing add mpegts stream option.. I don`t want to run one more service for mpeg-ts creation like ffserver or vlc.. Anyone guide me to achieve this goal.

  expected transport stream url "http://localhost/cam/live1.ts"

• How do I handle disconnection in the middle of capturing an RTSP stream ?

  16 septembre 2019, par Nikhil Ratna Shakya

  I am currently capturing an RTSP live stream using cv2.Videocapture(). After X minutes, the writer is released and a new video file is created. In case there is a network failure or disconnection however, no exception is thrown, just the same frame is repeated. Is there a way to set a timeout for the read() method?

  Testing the connection every time takes too long.

• Lip sync in audio view

  16 septembre 2019, par user1277872

  Hi I have developed an application in which I am playing music in background and recording live video from the camera. When recording completes by using ffmpeg command I am mixing video and audio. When the output played its working perfectly in some devices lip sync is happening perfectly but in some devises sync is not there. In my app I am using default player. when I play video in VLC everything is perfect. Is there any video view i can add it to my app ?

• Using FFmpeg with Android-NDK

  16 septembre 2019, par iSun

  I want to use FFmpeg with Android-NDK and I am very basic in this section, I need some help and I research about this topic before on the net, but got no satisfactory solution.

  1 - How can I use FFmpeg through Windows OS. (I do not want to use Ubuntu, please do not suggest.)

  2 - How can I inset FFmpeg commands via NDK?

  Last notice : I using android-ndk-r7b and Cygwin.

  Any suggestion would be appreciated.

• ffmpeg error : Too large number of skipped frames xxxxx > 60000

  16 septembre 2019, par Fulkron

  I try to record on RasperryPI from usb Cam (/dev/video0) using segments to obtain sliced video. The command I'm using is:

  ffmpeg -input_format mjpeg -video_size 640x480 -i /dev/video0 -y -y -f v4l2 -an -pix_fmt yuv420p -codec copy -f segment -segment_time 60 -segment_wrap 10 -t 180 stream/looper%02d.avi
  

  I got an error after 2 minutes about skipped frames (see later for detail). Is I run the same command without segmentation is working.

  I tested on different HW, with different segment parameters, with different usb cam but the situation still the same.

  Here there is the output:

     ffmpeg version 4.1.4-1+rpt1~deb10u1 Copyright (c) 2000-2019 the FFmpeg developers
    built with gcc 8 (Raspbian 8.3.0-6+rpi1)
    configuration: --prefix=/usr --extra-version='1+rpt1~deb10u1' --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --arch=arm --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-omx-rpi --enable-mmal --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
    libavutil      56. 22.100 / 56. 22.100
    libavcodec     58. 35.100 / 58. 35.100
    libavformat    58. 20.100 / 58. 20.100
    libavdevice    58.  5.100 / 58.  5.100
    libavfilter     7. 40.101 /  7. 40.101
    libavresample   4.  0.  0 /  4.  0.  0
    libswscale      5.  3.100 /  5.  3.100
    libswresample   3.  3.100 /  3.  3.100
    libpostproc    55.  3.100 / 55.  3.100
  Input #0, video4linux2,v4l2, from '/dev/video0':
    Duration: N/A, start: 40185.241073, bitrate: N/A
      Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 25 fps, 25 tbr, 1000k tbn, 1000k tbc
  [segment @ 0x9800b0] Opening 'stream/looper00.avi' for writing
  Output #0, segment, to 'stream/looper%02d.avi':
    Metadata:
      encoder         : Lavf58.20.100
      Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, q=2-31, 25 fps, 25 tbr, 600 tbn, 1000k tbc
  Stream mapping:
    Stream #0:0 -> #0:0 (copy)
  Press [q] to stop, [?] for help
  [segment @ 0x9800b0] Opening 'stream/looper01.avi' for writing/A speed=1.01x    
  [segment @ 0x9800b0] Opening 'stream/looper02.avi' for writing/A speed=1.01x    
  [avi @ 0x9822a0] Too large number of skipped frames 72034 > 60000speed=1.01x    
  av_interleaved_write_frame(): Invalid argument
  [avi @ 0x9822a0] Too large number of skipped frames 72034 > 60000
  frame= 3011 fps= 25 q=-1.0 Lsize=N/A time=00:02:00.06 bitrate=N/A speed=1.01x 
  

  I did not find any suggestion to solve it. Could you help me?

  Thanks Dario