Youtube-dl and ffmpeg

Download videos with unblock youku proxy

youtube-dl --cn-verification-proxy proxy.uku.im:8888 http://tv.sohu.com/20120726/n349111647.shtml

• --cn-verification-proxy: Use this proxy to verify the IP address for some Chinese sites. The default proxy specified by --proxy (or none, if the options is not present) is used for the actual downloading. (experimental)
• proxy.uku.im:8888 is unblockyouku's default proxy

Use ffmpeg to concatenate videos

• ffmpeg concate wiki
• simple ffmpeg tutorial

  # test.txt
  file 1.mp4
  file 2.mp4
  file 3.mp4
  file 4.mp4
  file 5.mp4
  file 6.mp4
  file 7.mp4
  file 8.mp4
  file 9.mp4
  

  ffmpeg -f concat -i test.txt -c copy output.mp4