title: FFmpeg video metadata change
body: <p>I am trying to change the video stream metadata. See (Change This Metadata) below. I can change the title of the movie ok but not any others. What is the ffmpeg line to change this.</p>
  
  <p>This line below changes "Title Of The Movie" only</p>
  
  <p>ffmpeg -i Input.mkv -metadata title="New Title" -c:v copy -c:a copy -c:s copy Output.mkv</p>
  
  <pre><code>Input #0, matroska,webm, from 'Input.mkv':
  Metadata:
  title           : Title Of The Movie
  encoder         : libebml v1.2.3 + libmatroska v1.3.0
  creation_time   : 2014-08-02 12:58:30
  Duration: 02:15:54.21, start: 0.000000, bitrate: 8177 kb/s
  Chapter #0.0: start 0.000000, end 208.666778
  Metadata:
    title           : Chapter 01
  Chapter #0.1: start 208.666778, end 811.727578
  Metadata:
    title           : Chapter 02
  Chapter #0.2: start 811.727578, end 1077.868444
  Metadata:
    title           : Chapter 03
  Chapter #0.3: start 1077.868444, end 1345.302289
  Metadata:
    title           : Chapter 04
  Chapter #0.4: start 1345.302289, end 2000.415067
  Metadata:
    title           : Chapter 05
  Chapter #0.5: start 2000.415067, end 2487.276444
  Metadata:
    title           : Chapter 06
  Chapter #0.6: start 2487.276444, end 3097.302533
  Metadata:
    title           : Chapter 07
  Chapter #0.7: start 3097.302533, end 3503.958778
  Metadata:
    title           : Chapter 08
  Chapter #0.8: start 3503.958778, end 4060.347956
  Metadata:
    title           : Chapter 09
  Chapter #0.9: start 4060.347956, end 4582.202622
  Metadata:
    title           : Chapter 10
  Chapter #0.10: start 4582.202622, end 5083.078000
  Metadata:
    title           : Chapter 11
  Chapter #0.11: start 5083.078000, end 5537.698822
  Metadata:
    title           : Chapter 12
  Chapter #0.12: start 5537.698822, end 5826.612444
  Metadata:
    title           : Chapter 13
  Chapter #0.13: start 5826.612444, end 6553.088200
  Metadata:
    title           : Chapter 14
  Chapter #0.14: start 6553.088200, end 6903.730156
  Metadata:
    title           : Chapter 15
  Chapter #0.15: start 6903.730156, end 7271.055444
  Metadata:
    title           : Chapter 16
  Chapter #0.16: start 7271.055444, end 7582.241333
  Metadata:
    title           : Chapter 17
  Chapter #0.17: start 7582.241333, end 8153.937444
  Metadata:
    title           : Chapter 18
  Chapter #0.18: start 8153.937444, end 8154.208000
  Metadata:
    title           : Chapter 19
  Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x800 [SAR 1:1 DAR 12:5], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
  Metadata:
    title           : Change This Metadata
  Stream #0:1(eng): Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s (default)
  Metadata:
    title           : Eng
  Stream #0:2(eng): Subtitle: subrip (default)
  Metadata:
    title           : Eng
  </code></pre>