How to Pull Off a 在线直播 Production
"This is gonna be a fun one,——罗伯·罗斯金, senior manager for video operations and emerging technologies at MTV网络 said at the start of his recent 流媒体 West presentation. 他是对的. Roskin is a familiar face at 流媒体 events thanks to his sense of humor and real-world experience.
In his hour-long talk, Roskin offered specific, practical advice for streaming live events. He included tips for cameras, encoding, bandwidth, CDNs, and social elements. The real topic was "mostly how not to screw it up," he said.
"Make sure that the camera does not face a light source,罗斯金提议道, illustrating his point with a story about shooting Fergie's entrance at the Kid's Choice Awards. A last-minute lighting change ruined his teams perfect shot and left them scrambling for a fix.
When streaming live, having enough bandwidth is crucial. Roskin told the audience how to spot poor connections.
"Watch ping times, which is known as latency, just as much as speed," Roskin said. "You could have a 100-meg pipe that I just need to use this much of, but I can't because it's too slow. When you're sending stuff from an encoder to -- let's hope -- a CDN, that latency can be a real problem. If it takes more than a tenth of a second to get your video to the encoder, you're probably not going to have a good show."
Roskin finished by underlining the importance of testing the entire workflow thoroughly the day ahead of time.
"Do a dry run the day before. 很多时候, people are in a rush -- 'Oh it's the day before a show, we just changed this thing, I gotta run to this meeting, 废话, 废话.' Do a dry run the day before, because if you don't your show is going to suck and you're not going to know why. You're going to think 'What did I plan wrong?“你没有测试. That's all it is," Roskin said.
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How-To: Technical Set-Up of 在线直播 Production
This session provides tips and tricks, 最佳实践, and lessons learned regarding the technical set-up of live streaming production from MTV网络. Learn how to stream multiple formats from a single encoder, use social networking overlays, leverage adaptive bitrate streaming, and transition between live streams from multiple camera angles using multi-encoder synchronization. Come learn how to deliver interactive, high-quality experiences for your next live event.
Speaker: Rob Roskin, Senior Manager, Video Operations and Emerging Technologies, MTV网络
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