1. Video Production Using Open Source Tools

• Scott C. Frase

• webmaster

2. blogger, musician, video enthusiast

3. travails of video editing on linux

crazedmuleproductions.blogspot.com

You

Video editors in the crowd?

Preferred OS?Any Linux users?

Total beginners? 4. Video Production Using Open Source Tools

Agenda

Why use Open Source to work with video?

5. Video production in Linux

Take some video

6. Edit it 7. Output it to common formats 8. Automate repetitive tasks Examples Feel free to interrupt and ask questions! 9. Why You Shouldn't Use Linux for Video

Steep learning curve

Not for novice computer users

Be ready to deal with unexpected problems

If you don't mind troubleshooting, you'll like editing with Linux

New version -> new problems

Ubuntu, Gentoo, Fedora, Debian, SUSE

10. Why You Should Use Linux for Video

Software wants to be free

The tools cost nothing but your time and effort

Open source

Change it if you want

Script repetitive tasks, like exporting video 11. Open ended and powerful

Can create most any effect you want through a variety of tools

12. Why do I choose to edit in Linux?

Cost

13. Feeling of satisfaction 14. High quality results 15. Creative freedom 16. Giving back to the community 17. But sometimes I ask..

Lord, why do I put myself through this torture?

18. ..for the results! 19. Cinelerra example

Oil painting effect

http://www.youtube.com/watch?v=46C-HJUlOyY

20. Cinelerra example

Chroma keying

http://www.youtube.com/watch?v=-baOOOAgneE

21. Cinelerra example

Camera automation and chroma key

http://www.youtube.com/watch?v=bsL2lFpzduA

22. Cinelerra example

Rotate and Perspective

http://www.youtube.com/watch?v=rlbJc8q-LxA

23. Editing results

Motion stabilization .. before

http://www.youtube.com/watch?v=gAQnboWCxEU

24. Editing results

Motion stabilization .. after

http://www.youtube.com/watch?v=LuQ-pa46OZc

25. Cinelerra example

And you can make a neat animated map

http://www.youtube.com/watch?v=nYzqicH1g3g

26. The Work of Video Production

Take some video with a camera

27. Bring it into your PC 28. Edit it with specialized software 29. Burn a DVD of the video 30. Share with others 31. Video Production, 2009

Take some video with a camera

32. Bring it into your PC 33. Edit it with specialized software 34. Export the video to different formats

DVD, also HDTV, Internet, iPod

35. Test to make sure they work Have the world view your creations

Distribute it via online services

36. Get the word out by syndication (RSS) 37. Video Production with Linux

Take some video with a camera

38. Bring it into your PCwith DVGRAB 39. Edit itwith Cinelerra 40. Export the videousing mplex and FFmpeg

DVD, also HDTV, Internet, iPod

41. Test to make sure they work Have the world view your creations

Distribute it via online services

42. Get the word out by syndication (RSS) 43. Capturing Video from Tape/Live

Use DVGRAB

Comes standard with most distributions

44. If not, download it

yum install dvgrab*

45. apt-get install dvgrab Let's grab some video

Turn on camera

46. Verify it is working (dmesg, plugreport) 47. dvgrab 48. DVGRAB

Once grabbed, let's import the video into our editing software, Cinelerra

Import video

49. See it on the timeline

Video stream

50. Audio stream 51. Video File Formats

Container

contains both video & audio streams

52. Quicktime, MPEG-PS, MPEG-TS, AVI Video stream

Compressed formats (smaller size, artifacts)

MPEG1/2/4, H.264, JPEG, MJPEG

Uncompressed formats (huge, best quality)

RGB/RGBA/YUV

Audio stream

MPEG2, MP3, MPEG4/AAC, PCM, Twos

53. Video File Format

Output from my cam: MPEG2-TS

Container: transport stream

54. Video Stream: 720P video 55. Audio Stream: MPEG, Layer II 56. Cinelerra Editing

Set Your Preferences (shift-P)

ALSA sound driver, Stop Playback Lockups

Set Project Format (shift-F) 57. Timeline

CTRL-click on it to cycle timeline scale

58. Playback, video fader, audio fader 59. Video fade, audio fade Viewer 60. Cinelerra Editing

Compositor

Camera

61. Projector

Patchbay

Play, record, tab, shift-tab

Masking

Shift-alt to move entire mask

Automation via keyframes 62. Cinelerra Effects

Fun

63. Video effects take a LOT of CPU power 64. Render overnight

Confirm effect by rendering small sections at a time

65. Use a renderfarm for more power 66. Cinelerra Output

Rendering

Where will the video be seen?

DVD, YouTube, iPod, HDTV

DVD

MPEG-PS: MPEG2 video, MPEG layer II audio

YouTube

Quicktime: most video/audio formats

iPod/iPhone

Quicktime: H.264 video, AAC audio

67. Cinelerra Output

Rendering

Shift-R

68. Cin's rendering engine is a GUI front end to a command line interface 69. Output

• • Video stream
• 70. Audio stream

• • Combined into a container in the next step

71. Test, Test, Test

Render small sections (< 30 sec)

72. Test the output in multiple apps

mplayer

73. totem 74. ffplay 75. vlc 76. xine 77. Automate the File Conversions

Here is where Linux is your friend!

78. Automate via scripts wherever possible

convert our source file to other formats

DVD

79. HDTV 80. iPod/iPhone via iTunes 81. Internet

YouTube, Vimeo

82. iTunes

Copy iPod file to USB flash drive

83. Reboot to Mac 84. Load to iTunes 85. Load up to Vimeo 86. Open Source Video Production

That's all folks.. I'm available for questions after the presentation Scott C. Frase http://crazedmuleproductions.blogspot.com

87. Cinelerra

Requirements

HD editing

Dual core, 2.4Ghz, 2GB minimum

88. Use 64-bit OS best 89. Recommended: dual core, fast Ghz, 4GB min

My main system: dual quad core, 1.6Ghz, 10GB

DV editing

Single core, 2.4Ghz, 1GB

Always go 64-bit 90. CinelerraInstallation, easy

Fedora 10, x86_64

Add Kwizart repository

http://rpms.kwizart.net/kwizart-release-10.rpm

sudo yum install cinelerra-cv*Ubuntu Gutsy

sudo gedit /etc/apt/sources.list

91. deb http://giss.tv/~vale/ubuntu64 ./ 92. sudo apt-get update 93. sudo aptitude install cinelerra 94. CinelerraInstallation from Source

Anyone done this before?

95. install the dependencies for Cinelerra 96. get the Cinelerra source

git clone git://git.cinelerra.org/j6t/cinelerra.git cinelerra_source

run ./autogen.sh 97. run ./configure 98. run "make" 99. run "make install" 100. Cinelerra

Optimizations

Stripe set working drive (RAID0)

101. Mirror your assets directory (RAID1)

You don't want to lose your work!!

102. Hardware RAID usually faster 103. Linux doesn't like hardware RAID 104. Software RAID fine Create large ramdisk for temp files

Background rendering

105. Index files (.bcast directory) 106. Cinelerra Problem

Knowing which container and compression schemes work!

107. Cinelerra Problem

Audio, video synchronization

Solved via audio or video delay effects

108. Also, the nudge feature in the patchbay