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• How can i make drawtext filter start the text scrolling from the center while scrolling from right to left

  16 janvier 2018, par Femzy

  Hello How can i make the text start from the center when the video play ? Currently it start from the left side and people dont see the first words before it goes. I want the text to start from either the center of the video or the right while moving from right to left. Thanks in advance for helping me...
  This is my code that currently works for the text, but it starts from the edge of the of the left while moving from right to left

  echo shell_exec('ffmpeg -loop 1 -i slide2.jpg -vf scale=-2:1080,drawtext="textfile=text.txt:expansion=normal:fontfile=FreeSerif.otf: y=h-line_h-20:x=-200*t: fontcolor=white: fontsize=50" -pix_fmt yuv420p -t '.$words_count.' -movflags +faststart textover10.mp4 -report');

• Which player can play call center recoding file or convert

  26 août 2018, par Wida

  I’m working with call center recording file but it’s sound gibberish which mediainfo shows detail

  Format                                   : Wave
  
  File size                                : 239 KiB
  
  Duration                                 : 3 min 3 s
  
  Overall bit rate                         : 10.7 kb/s
  
  
  
  Audio
  
  Format                                   : G.723.1
  
  Codec ID                                 : A100
  
  Duration                                 : 3 min 3 s
  
  Bit rate                                 : 10.7 kb/s
  
  Channel(s)                               : 2 channels
  
  Sampling rate                            : 8 000 Hz
  
  Stream size                              : 239 KiB (100%)

  and detail in from ffmpeg show as

  ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
  
    libavutil      56. 14.100 / 56. 14.100
  
    libavcodec     58. 18.100 / 58. 18.100
  
    libavformat    58. 12.100 / 58. 12.100
  
    libavdevice    58.  3.100 / 58.  3.100
  
    libavfilter     7. 16.100 /  7. 16.100
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  1.100 /  5.  1.100
  
    libswresample   3.  1.100 /  3.  1.100
  
    libpostproc    55.  1.100 / 55.  1.100
  
  Input #0, wav, from 'test.wav':
  
    Duration: 00:03:03.84, bitrate: 10 kb/s
  
      Stream #0:0: Audio: g723_1 ([0][161][0][0] / 0xA100), 8000 Hz, mono, s16, 10 kb/s
  
  At least one output file must be specified

  I have used so many player : Audacity, VLC, WMP. But it’s sound gibberish.
  My case is very similar to

  Converting a call center recording to something useful

  in this link, he can fix by using Goldwave for converting file. I also tried Goldwave too but still didn’t work.

  So, Do I have to config more with Goldwave or any solution at least I want to listen to it

  I use MacOs but don’t mind if have to use window for open it.

  Ps. can listen sample audio in the link (my recoding is the same as the sample in this link)

  more detail from Switch by NCH Software

  format : WAVE
  
  codec : Comverse Infosys Ltd. G723 1
  
  Sample Rate : 8000
  
  Channels : 1 (Mono)

• Facebook live video can only be previewed while streaming my Mac screen

  24 janvier 2017, par iownthegame

  I use the following ffmpeg command to share my screen streaming to Facebook.

  

  ffmpeg -f avfoundation -r 10 -video_size 352x288 -i "0" -c:v h264 -f flv 
  
  "rtmp://rtmp-api.facebook.com:80/rtmp/1269140699772419?ds=1&a=AaYsXcYcdHQrrrUF"

  then I can see the video preview scenes
  

  however, once I press the ’Go Live’ button, and go to my facebook page, I can find a post said I am Live Now. When I press the ’play button’, there are only black scenes that last for 1 2 seconds, and the video ends.

  

  And there is also a weird thing, the video can be played when I end up the live stream. When refreshing the page, I can find a post said I was Live, the video of this post can be played successfully.

  Anyone knows why the video can be watched when previewing and finishing live but not the exact live moment ?

  [updated]

  During the live streaming period, if I press the play button, there are only 1 2 seconds black scenes and the live stream ends.
  

  However if I press the video frame again, another modal pops up then I can see the live streaming. Is it a facebook bug ?