Re: MPEG4 part 2 video support

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Re: MPEG4 part 2 video support
Germany	2008-03-26 16:07:48

Hi Sergio, Firts, about licenses, they don't apply if you only recieve the mpeg-4 stream and store in an mp4, just the same as in the AMR licenes. (for private use) You are right. But usually within business cases of companies, the story continues. And at a certain point of time some companies want to publish content, and that is covered with royalties. It is like Peer-to-peer software. Downloading is not the fact. Publishing is the issue. About video quality, I really don't beleive there is any significant gain moving from h263 to mpeg4 part 2. I believe 50% but my colleague nailed me down to 10% for L0">SPL0. Perhaps it depends on the content, the bitrate, the targeted bitrate, and quantisation, etc. mpeg4 part 10 (=AVC) (h264) is another history, but there aren't many handsets supporting it yet. Most new handsets from Nokia support it. They are already enabled for DVB-H/T or whatsoever. Since 2 years a lot of Nokia handsets have H.264 support onboard. CU, Michael
Re: MPEG4 part 2 video support
	2008-03-27 02:49:25

Hi, On Wed, Mar 26, 2008 at 10:07 PM, Michael (qq12345) < qq12345web.de">qq12345web.de>; wrote: Hi Sergio, Firts, about licenses, they don't apply if you only recieve the mpeg-4 stream and store in an mp4, just the same as in the AMR licenes. (for private use) You are right. But usually within business cases of companies, the story continues. And at a certain point of time some companies want to publish content, and that is covered with royalties. It is like Peer-to-peer software. Downloading is not the fact. Publishing is the issue. About video quality, I really don't beleive there is any significant gain moving from h263 to mpeg4 part 2. I believe 50% but my colleague nailed me down to 10% for SPL0" target="_blank">SPL0. Perhaps it depends on the content, the bitrate, the targeted bitrate, and quantisation, etc. mpeg4 part 10 (=AVC) (h264) is another history, but there aren't many handsets supporting it yet. Most new handsets from Nokia support it. They are already enabled for DVB-H/T or whatsoever. Since 2 years a lot of Nokia handsets have H.264 support onboard. Most of nokia phones support h.264 for video playback from streaming protocols or a file, but I have never seen a 3g stack (h245 negociation) that support it. Have you a example ? CU, Michael _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-video mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-video -- Mustafa Ozveren

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