-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 13/12/13 03:24 AM, Ulrich Aumann wrote:
> Is there a plan to add MP4-Streaming support via Byte-Range > requests in upcoming versions of Firefox? It sounds like you're asking about seeking over http Range requests, since progressive playback during download works. I think we plan to implement that eventually, but it may be a while. In the meantime I recommend using a more stream-oriented video format like WebM or Theora. > Because I read that MP4-Support depends on underlying OS support > for H.264 decoding: Will this feature depend on the actual > OS/device, Firefox is running on? That's true right now because we forward to the whole mp4 stream to the platform-specific decoder. We're currently rewriting mp4 support to do the demuxing in native firefox code, and rely on platform-specific modules only for decode of compressed audio and video frame data. That will let us support seeking in the same way on all platforms, but we have to finish the rewrite first. What will work sooner is the MediaSource extension, which allows a web page to feed compressed data to the playback pipeline. This allows direct control over download and buffering. You could use this to implement your own byte-range seeking in javascript until Firefox supports is natively, or use one of the libraries for DASH for HTTP Live Streaming. We'll be supporting fragmented mp4 playback for the MediaSource extensions (currently works, behind a pref, in Firefox Aurora or Nightly on Windows only), then non-fragmented mp4 for normal <video> playback, and finally seeking, in that order of priority. That's the current plan, anyway. Hope it helps with your planning. -r -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJSq1f3AAoJEEcAD3uxRB3vbkkH/RNEVVllQKh4qXdFtEus/X9k YSHDPnr15TndzzeVpGoVE3SZgH2kzcrqesAm4OF078sb58Vuwd84XR/4DGYLQtGO 8lniYQbHCK7AQs4lf163uMWuAZOxF/fGo8D8/bTZO7MdL1jGSU+0/mDD/vpV8X+S XjmGVWESGh8x3tpt3QheEKWp6k+x8IJ+EKbHrpld8vLOEMuFxlqY4ZXLWWmMC8wA 6XshxbiNFS3Aqlfi8i+4eicAoHFQ3dGYjk2VbsO5SYuO1/mRD/j7VNBD+kC4GTB1 /3RVeA92yMIiuklI+KKmWWNmzPsnjsL5moKg0zKpPMrL0wmPuH6ae74mPHDsfKk= =Z2OB -----END PGP SIGNATURE----- _______________________________________________ dev-media mailing list [email protected] https://lists.mozilla.org/listinfo/dev-media
