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A collection of 130 posts

YouTube Ingest by Hand (Part 4)

I spent the last day merging the initialization segments and media segments emitted by the two AVAssetWriter's (audio + video). The result at the moment is that VLC won't play it, and YouTube is still broadcasting a black rectangle. I pulled down some example M4F files from

YouTube Ingest by Hand (Part 3)

Progress! "The ingestion stream does not contain any audio streams, but it must contain exactly one audio stream." First thing this morning I noticed that while the MPD's SegmentTemplate "media" attribute was set to "file=media$Number$.mp4", I was sending files

YouTube Ingest by Hand (Part 2)

After last night: I was trying to psych myself to manually put the encoded H264 frames into a fragmented MP4 container. I'd need to get some 3rd party tool to validate my work. There was nothing exciting to this "solution". And then I found this: Author

YouTube Ingest by Hand (Part 1)

Has anyone ever actually got YouTube's MPEG-DASH live streaming ingest thing to work? I've got all of the API stuff handled correctly. I'm producing an MPD that YouTube's API accepts without error. And I'm pushing the media MP4 files which

CameraMan or Who Watches the Watchmen?

Meet CameraMan. This app (Mac OS X, 10.11.x or greater) is my most recent personal project to fall victim to the demands of the day job. It's a Mac OS X app for video camera streaming. It'll work with most IP or USB cameras.

App Distribution in the Post-TestFlight World or How Apple Restored Balance to iOS App Development

First, let me say that this blog post is about two years too late, almost to the day. But maybe a few people will still find it useful. Step back in time with me, back to early 2014, back before Apple acquired Burstly (the parent company of TestFlight). I used

Parallela

I haven't been this excited about a Kickstart project in, well, forever, actually. Parallela. If all goes well, I'll have a 64-core RISC-based Ubuntu-running computer to play with this coming May. The DSP stuff I could do with that ... I wonder if I should start writing

Free, Throw-Away Email Addresses

For a free throw-away email address for use with annoying registration forms: http://spamass.net

print_number() - an alternative for sprintf()

In most situations this probably falls clearly into the category of premature optimization, but if you need that extra ounce of efficiency in a situation where you're converting a numeric value into its ascii equivalent via sprintf(), you might find this print_number() solution useful. It has precisely

Phil "Boring" Schiller

The one executive at Apple who can consistently take an exciting, world-changing product and introduce it with the world's most boring half hour monologue -- is supposedly becoming the "public face" of Apple. I thought Tim Cook was smarter than that. I look forward to reading

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