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Re: [rtcweb] Platforms that support H264 (was: Congratuiations on the Cisco announcement - but we still prefer VP8)

Bossiel thioriguel <bossiel@yahoo.fr> Sat, 02 November 2013 17:28 UTC

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Date: Sat, 02 Nov 2013 17:27:46 +0000
From: Bossiel thioriguel <bossiel@yahoo.fr>
To: Emil Ivov <emcho@jitsi.org>, tim panton <tim@phonefromhere.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Platforms that support H264 (was: Congratuiations on the Cisco announcement - but we still prefer VP8)
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@Emil
Both Windows 8 and 7 natively contain H.264 *encoder* (Thanks for Media foundation). The only issue with Windows 7 is the the encoder doesn't support realtime encoding (up to 3s delay).
You can also rely on the GPU (Cuda for Nvidia and Intel Quick Sync for Intel). Nothing to install for the end-user.
If you want reference code:
Media Foundation (Windows OS and Intel Quick Sync): https://code.google.com/p/doubango/source/browse/#svn%2Fbranches%2F2.0%2Fdoubango%2Fplugins%2FpluginWinMF
Nvidia Cuda: https://code.google.com/p/doubango/source/browse/#svn%2Fbranches%2F2.0%2Fdoubango%2Fplugins%2FpluginCUDA




Le Samedi 2 novembre 2013 18h14, Emil Ivov <emcho@jitsi.org> a écrit :
 
Same questions for OS X and Windows actually. Last time we checked (which was also some time ago) there was no way to get the OS to *encode* H.264 for you.
--sent from my mobile
On 2 Nov 2013 17:57, "tim panton" <tim@phonefromhere.com> wrote:


>On 2 Nov 2013, at 15:02, Martin Thomson <martin.thomson@gmail.com> wrote:
>
>> On 2 November 2013 07:37, cowwoc <cowwoc@bbs.darktech.org> wrote:
>>>    I can't think of a single platform that supports real-time H.264
>>> encoding/decoding natively today.
>>
>> That's a very strange way to put the question.
>>
>> Let me put another spin on it, and please excuse the example...
>>
>> Skype runs on more platforms than you might think.  Those platforms
>> can all support H.264 to the extent that Skype requires.
>
>Martin, can I ask you to talk with your Skype engineering team and check up on
>the exact way that works on iOS. Last time I looked, it seemed you couldn’t use the
>Apple supplied (hardware accelerated) h264 library for realtime encode/decode and
>it wasn’t at all clear to me that the hardware encoder licence covered any soft implementation of h264 we
>added.
>
>I’d like to caveat that:
> 1) it was a while ago. 2) I’m not a lawyer. 3) it was a thought experiment.
>So it would be interesting to get a current view from the trenches.
>
>T.
>
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