Hi Greg, I'd write a workflow operation handler to split this into different media files before anything else happened, then just normal matterhorn workflows could happen and you wouldn't have to make operations sensitive to this kind of media.
There's a template for an operation handler in the contrib directory, Chris On Wed, 04 May 2011 08:42:32 -0600 Greg Logan <[email protected]> wrote: > Hi folks, > > I am finally at the stage where I have some media from the new Epiphan > capture agent to test against. The media contains two video streams > and one audio stream in a single .avi file. In terms of workflow at > the core, what do I need to add or change? Do I need to split one > video out into its own file, or will we be able to write a workflow > that does not require creating additional files? > > The output of mediainfo on the example media: > > General > Complete name : capture.avi > Format : AVI > Format/Info : Audio Video Interleave > File size : 1.34 MiB > Duration : 11s 367ms > Overall bit rate : 993 Kbps > Writing application : Lavf52.32.0 > > Video #1 > ID : 0 > Format : AVC > Format/Info : Advanced Video Codec > Format profile : [email protected] > Format settings, CABAC : No > Format settings, ReFrames : 1 frame > Codec ID : H264 > Duration : 11s 367ms > Bit rate mode : Variable > Bit rate : 817 Kbps > Maximum bit rate : 600 Kbps > Width : 1 920 pixels > Height : 1 200 pixels > Display aspect ratio : 1.600 > Frame rate mode : Variable > Frame rate : 30.000 fps / 5.000 fps > Standard : NTSC > Color space : YUV > Chroma subsampling : 4:2:0 > Bit depth : 8 bits > Scan type : Progressive > Bits/(Pixel*Frame) : 0.012 > Stream size : 1.11 MiB (82%) > > Video #2 > ID : 2 > Format : AVC > Format/Info : Advanced Video Codec > Codec ID : H264 > Width : 720 pixels > Height : 480 pixels > Display aspect ratio : 3:2 > Standard : NTSC > Color space : YUV > Chroma subsampling : 4:2:0 > Stream size : 33.0 KiB (2%) > > Audio > ID : 1 > Format : MPEG Audio > Format version : Version 2 > Format profile : Layer 3 > Codec ID : 55 > Codec ID/Hint : MP3 > Duration : 11s 363ms > Bit rate mode : Constant > Bit rate : 128 Kbps > Channel(s) : 1 channel > Sampling rate : 22.05 KHz > Stream size : 178 KiB (13%) > Alignment : Split accross interleaves > Interleave, duration : 26 ms (0.78 video frame) > > > G > -- Christopher Brooks, BSc, MSc ARIES Laboratory, University of Saskatchewan Web: http://www.cs.usask.ca/~cab938 Phone: 1.306.966.1442 Mail: Advanced Research in Intelligent Educational Systems Laboratory Department of Computer Science University of Saskatchewan 176 Thorvaldson Building 110 Science Place Saskatoon, SK S7N 5C9 _______________________________________________ Matterhorn mailing list [email protected] http://lists.opencastproject.org/mailman/listinfo/matterhorn To unsubscribe please email [email protected] _______________________________________________
