Recent Posts

H.264 Main or High Profile? Use High says Ben Waggonner

Interesting line of questions on the Advanced Streaming List recently. One producer shared that he was encoding using the following parameters: 768kbps512×288H.264 Main Profile Level 3.1 Microsoft’s Ben Waggoner, author of Compression for Great Video and Audio, who has an encyclopedic knowledge of compression related matters, responded: “High Profile instead of Main Profile; decode complexity is the same, and you …

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An essential gizmo for Mac video producers

This is not an earthshaking post, but I thought I would share it anyway. I’ve never been a fan of Apple’s decision to use FireWire 800 adapters on their most recent lines of computers since it meant that I couldn’t connect my camcorders to them without an adapter. I’ve resisted purchasing a FireWire 800 to 400 adapter because I have …

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What’s the right keyframe interval?

Interesting post came from the StreamingMedia Advanced list today: Question:  Anyone have any advise on key frame placement in h264 flash? I felt like I should know the answer to this, so I pulled together the following: Answer: Interesting question. For single file streaming, make sure that keyframes at scene changes are enabled. In terms of interval, ESPN uses one …

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