5 ms·

Does anyone know how hard it would be to port an h264 decoder to asm.js? If it worked, it could be used to shim h264 support into Firefox.

• jeresig 14y ago
  I believe one has already been ported using Emscripten - but this was a while ago, I'd be curious to see how fast it runs now with Asm.js: https://github.com/mbebenita/Broadway https://github.com/mbebenita/Broadway
• robin_reala 14y ago
  Fairly easily if you start with Broadway: it’s an Emscripten port of Android’s H264 software decoder that writes to a WebGL canvas. https://github.com/mbebenita/Broadway https://github.com/mbebenita/Broadway
• dave1010uk 14y ago
  The reverse has been done: WebM has been ported to JavaScript with Emscripten, which means all browsers (IE9+) can play WebM to some degree. http://badassjs.com/post/17218459521/webm-and-webp-hand-ported-to-javascript-for-all http://badassjs.com/post/17218459521/webm-and-webp-hand-port...
• ysangkok 14y ago
  Wasn't Firefox 20 supposed to have H264 support?
  • fakeer 14y ago
    Yes. But it hasn't somehow on Mac, because I have been reading it's already there on Windows(never tried myself though).