Since workflow operations are blocking, I suggest doing the actual work in a service such as the composer service. This way, jobs can be distributed, can take advantage of failover, etc.
Josh On Wed, May 4, 2011 at 12:17 PM, Greg Logan <[email protected]> wrote: > On 11-05-04 12:57 PM, Ruben Gonzalez Uvigo wrote: > > Hi Greg. > > > > I only have a doubt, if you use a unique file that contains two video > > streams, how to differentiate the flavours of the video streams? > > > > You could use the resolution to put the correct flavour in an especial > > prepare-av workflow operation. > > I was going to give the input capture a flavour of video/epiphan or > something and then catch that with a workflow operation handler per > Chris' suggestion. > > G > > > > > > > 2011/5/4 Greg Logan <[email protected] <mailto:[email protected]>> > > > > 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 > > > > > > _______________________________________________ > > Matterhorn mailing list > > [email protected] <mailto: > [email protected]> > > http://lists.opencastproject.org/mailman/listinfo/matterhorn > > > > > > To unsubscribe please email > > [email protected] > > <mailto:[email protected]> > > _______________________________________________ > > > > > > > > > > -- > > Un Saludo > > > > Ruben Gonzalez Gonzalez > > > > > > > > _______________________________________________ > > Matterhorn mailing list > > [email protected] > > http://lists.opencastproject.org/mailman/listinfo/matterhorn > > > > > > To unsubscribe please email > > [email protected] > > _______________________________________________ > > > > _______________________________________________ > Matterhorn mailing list > [email protected] > http://lists.opencastproject.org/mailman/listinfo/matterhorn > > > To unsubscribe please email > [email protected] > _______________________________________________ >
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