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• Overlay Image on moving object in Video

  10 mai 2017, par Karandeep Atwal

  I am using FFmpeg to overlay image/emoji on video by this command -

  "-i "+inputfilePath+" -filter_complex "+"[0][1]overlay=enable='between(t,"+startTime+","+endTime+")'[v1]"+" -map [v0] -map 0:a "+OutputfilePath;  

  But above command only overlay image over video and stays still.

  In Instagram and Snapchat there is New pin feature . I want exactly same ,eg blur on moving faces or as in below videos -

  

  Here is link.

  Is it possible via FFmpeg ?

• FFmpeg create output directory hierarchy

  23 avril 2017, par David

  Recently bought an ip-cam which outputs a RTSP stream. I’m using the segment option of FFmpeg to create 60 minute long recordings.

  I want FFmpeg to write the files to a directory based on Year/Month/Date, and write to a file Hour-Minute.mp4 For example :
  /raid1/homes/share/public/recordings/queue/bedroom/2017/04/23/13-05.mp4 for a recording started on 23 april 2017, 13:05.

  Unfortunately FFmpeg seems to not create the directory hierarchy. FFmpeg quits since the directory can not be found.

  Input #0, rtsp, from 'rtsp://192.168.1.240/unicast':
  
    Metadata:
  
      title           : LIVE555 Streaming Media v2014.07.04
  
      comment         : LIVE555 Streaming Media v2014.07.04
  
    Duration: N/A, start: 0.000750, bitrate: N/A
  
      Stream #0:0: Video: h264 (High), yuv420p, 1920x1080, 90k tbr, 90k tbn, 180k tbc
  
      Stream #0:1: Audio: pcm_alaw, 8000 Hz, 1 channels, s16, 64 kb/s
  
  [segment @ 0x2557300] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  [segment @ 0x2557300] Failed to open segment '/raid1/homes/share/public/recordings/queue/bedroom/2017/04/23/14-19.mp4'
  
  Output #0, segment, to '/raid1/homes/share/public/recordings/queue/bedroom/%Y/%m/%d/%H-%M.mp4':
  
    Metadata:
  
      title           : LIVE555 Streaming Media v2014.07.04
  
      comment         : LIVE555 Streaming Media v2014.07.04
  
      encoder         : Lavf57.41.100
  
      Stream #0:0: Video: h264, yuv420p, 1920x1080, q=2-31, 90k tbr, 90k tbn, 90k tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Could not write header for output file #0 (incorrect codec parameters ?): No such file or directory

  record.sh is as follows :

  #!/bin/sh
  
  ffmpeg -stimeout 600\
  
   -rtsp_transport udp \
  
   -i rtsp://192.168.1.240/unicast \
  
   -c copy \
  
   -map 0:0 \
  
   -f segment \
  
   -segment_time 3600 \
  
   -segment_wrap 100 \
  
   -segment_format mov \
  
   -strftime 1 \
  
   -reset_timestamps 1 \
  
   "/raid1/homes/share/public/recordings/queue/bedroom/%Y/%m/%d/%H-%M.mp4"

  I’ve tried not using a directory hierachy : "/raid1/homes/share/public/recordings/queue/bedroom/%Y-%m-%d_%H-%M.mp4". This works fine.

  $ ffmpeg -version
  
  ffmpeg version N-80901-gfebc862 Copyright (c) 2000-2016 the FFmpeg developers
  
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
  
  libavutil      55. 28.100 / 55. 28.100
  
  libavcodec     57. 48.101 / 57. 48.101
  
  libavformat    57. 41.100 / 57. 41.100
  
  libavdevice    57.  0.102 / 57.  0.102
  
  libavfilter     6. 47.100 /  6. 47.100
  
  libavresample   3.  0.  0 /  3.  0.  0
  
  libswscale      4.  1.100 /  4.  1.100
  
  libswresample   2.  1.100 /  2.  1.100
  
  libpostproc    54.  0.100 / 54.  0.100

  Can FFmpeg create output directories on the go ?

• FFMPEG build still resulting in `Illegal instruction` on raspberry pi ZERO, but not PI 2+

  17 mai 2017, par zyeek

  The process in which I do it configures the lib and ffmpeg files on the zero then move over to a pi 3 to make and install it (for speed).

  Build process :

  # x264
  
  git clone git://git.videolan.org/x264.git
  
  cd x264
  
  sudo ./configure --host=arm-unknown-linux-gnueabi --enable-shared --disable-opencl
  
  sudo make
  
  sudo make install
  
  sudo ldconfig
  
  
  
  # FFMPEG
  
  git clone git://source.ffmpeg.org/ffmpeg.git
  
  cd ffmpeg
  
  sudo ./configure --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
  sudo make
  
  sudo make install

  I tried following this cross compile type build but complained I was missing a C compiler, but GCC was installed. SO I just went to follow my previous method.

  Results of trying to run it :

  pi@raspberrypi:~ $ ffmpeg -f v4l2 -i /dev/video0 -c:v libx264 -preset ultrafast -crf 0 http://localhost:8090/feed1.ffm
  
  ffmpeg version N-85747-gc4be288 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.9.2 (Raspbian 4.9.2-10)
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
    libavutil      55. 61.100 / 55. 61.100
  
    libavcodec     57. 93.100 / 57. 93.100
  
    libavformat    57. 72.101 / 57. 72.101
  
    libavdevice    57.  7.100 / 57.  7.100
  
    libavfilter     6. 88.100 /  6. 88.100
  
    libswscale      4.  7.101 /  4.  7.101
  
    libswresample   2.  8.100 /  2.  8.100
  
    libpostproc    54.  6.100 / 54.  6.100
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 682.500534, bitrate: 110592 kb/s
  
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x360, 110592 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
  
  [tcp @ 0x2cba570] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Wed May  3 12:30:16 2017 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
  
  [tcp @ 0x2cbf1b0] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  No pixel format specified, yuv422p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  Wed May  3 12:30:16 2017 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 0
  
  Illegal instruction