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• Join videos without interruption with removing extra scenes automatically

  19 janvier 2014, par RarLines

  I've tens of splitted videos from a video.

  My english is poor so I will try explain with a simple example :

  The original video scenes like so: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

  But I had never the original video. I've these videos :

  Video_1.part scenes: 1, 2, 3, 4, 5
  
  Video_2.part scenes: 5, 6, 7, 8, 9 (5 is extra !)
  
  Video_3.part scenes: 9, 10, 11, 12, 13, 14 (9 is extra !)

  When I try to concatenate (or join, merge, combine...etc) these videos with using ffmpeg, the scenes the output file are liked that :

  The output video scenes: 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 14

  As you can see, when I watch the output video there are interruptions between videos.

  Is there any technical way to join videos without interruption (or nonstop, continuous...etc) ?

  Please note that, my example is so simple. I'm not sure that the splitted videos have regularly extra scenes. If I was sure, I could crop equally. Maybe the length of extra scenes are equal. But I couldn't check.

  Hope you will show an intelligent method. Thanks

• FFmpeg youtube streaming crash

  27 septembre 2020, par UkaszYTPolak

  I'm using vps with Ubuntu 18.04.1 LTS

  


  And i want to create stream 24/7 on youtube.

  


  Script :

  


  #! /bin/bash
 
VBR="1500k"
FPS="29"
QUAL="ultrafast"
YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2"
YOUTUBE_KEY="xxxx-xxxx-xxxx-xxxx-xxxx"
VIDEO_SOURCE="undefajnd.mp4"
AUDIO_SOURCE="marynaura.mp3"
AUDIO_ENCODER="aac"
 
ffmpeg \
 -stream_loop -1 \
 -re \
 -r $FPS \
 -i "$VIDEO_SOURCE" \
 -thread_queue_size 512 \
 -i "$AUDIO_SOURCE" \
 -c:v libx264 -tune stillimage -pix_fmt yuv420p -preset $QUAL -r $FPS -g $(($FPS *2)) -b:v $VBR \
 -c:a $AUDIO_ENCODER -threads 6 -ar 44100 -b:a 128k -bufsize 512k -pix_fmt yuv420p \
 -f flv \
 -flvflags no_duration_filesize  $YOUTUBE_URL/$YOUTUBE_KEY


  


  Stream is in loop,but "Crash" on video end
Video - from terminal

  


  sorry for my English D :

  


• YouTube_dl doesn't find ffmpeg

  10 octobre 2019, par user702846

  I would like to download a set of youtube file as audio, mp3.

  import youtube_dl
  
  
  
  ydl_opts = {
  
      'format': 'bestaudio/best',
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
      }],
  
  }
  
  with youtube_dl.YoutubeDL(ydl_opts) as ydl:
  
      ydl.download(['https://www.youtube.com/watch?v=cmNEDz7YZSw']) 

  It successfully download the file as m4a - however complains about ffmpeg installation.

  ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.

  I do have ffmpeg installed and located at /usr/local/bin/ffmpeg and also have added to my PATH using

  os.environ["PATH"] += '/usr/local/bin/ffmpeg'

  but still the error is there. I am using MacOS Mojave and my ffmpeg specification are as following,

  fmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
  
    configuration: --disable-encoder=vorbis --enable-libvorbis --enable-libmp3lame --disable-x86asm