Video calling with PJSIP on an iphone

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Dzmitry-

> Yes, we use x264 ( from http://www.videolan.org/developers/x264.html)
> for decode h264.

This is using the ARM core?  I would think that using the ARM core instead of the media (DSP) core would overload the
ARM and cut battery life.  Maybe decode is more feasible, but encode is CPU intensive.

-Jeff

> On 04.12.2010, at 16:41, bo shi wrote:
>
>> Hi Dima,
>>   I learned that the iPhone sdk does not publish the H.264 codec API,
>> so developer can not use hardware decoder to decode raw H.264 stream
>> directly, how can you do that? You decode video in soft way?
>>
>> Thanks in advance!
>> Bo
>>
>>
>> On Saturday, December 4, 2010, Dzmitry Yablonski <grizlik at gmail.com> wrote:
>>> Hello Rob
>>> We have implemented video call with PjSip 1.8.5 on iPhone.
>>> Best regards, Dima.
>>>
>>>
>>> On 04.12.2010, at 15:26, Rob Wilkes wrote:
>>> I also noticed that your roadmap says it will initially be for windows. My requirement is for iphone. I guess my
>>> question is not really a PJSIP question, but rather to developers who may have used PJ to make video work on iPhone
>>> - just wanted to check if it is doable or impossible today due to some iphone restriction :)
>>>
>>> On Sat, Dec 4, 2010 at 8:42 AM, Rob Wilkes <wilkrob at gmail.com> wrote:
>>>
>>> Hi Benny, Yes, I know PJSIP also plans to support it - but for this project, I cannot wait for that update, so I
>>> plan to do it myself. Since you may be ahead of me, I was curious if there are any restrictions in the iPhone APIs
>>> itself that will inhibit PJSIP (or any other stack) to not work with video. For example, it looks like I cannot use
>>> the Movie Player class as it expects a URL.For  this to work, we will need frame/frame encode/decode and display
>>> support on the iPhone.
>>>
>>>
>>> thanks!
>>>
>>> On Fri, Dec 3, 2010 at 10:12 PM, Benny Prijono <bennylp at teluu.com> wrote:
>>>
>>> Hi, FYI we are also working on video and it is planned for the
>>> upcoming 2.0 release. Have a look at our roadmap in the trac site.
>>>
>>> Best regards,
>>>  Benny
>>>
>>>
>>> On Sat, Dec 4, 2010 at 3:51 AM, Rob Wilkes <wilkrob at gmail.com> wrote:
>>>> Hi, I have started on an activity to get a basic Video call working on
>>>> iPhone. It needs be be over RTP, preferably with H.264 codec. Has anyone
>>>> written a video client with PJSIP specifically for the iphone? Are there any
>>>> road blocks? ( I know PJSIP doesnt support video for now, but I plan to
>>>> extend it - my question is more in the iPhone side). Prelim. analysis shows
>>>> I can pass H.264 streams to the iphone media player framework and it can
>>>> instantiate the appropriate player. My approximate plan is to send audio +
>>>> video data using PJSIP, then extend PJSIP to support video decoding and pass
>>>> the decoded H264 buffer to the media framework of iphone.
>>>>
>>>>
>>>> _______________________________________________
>>>> Visit our blog: http://blog.pjsip.org <http://blog.pjsip.org/>
>>>>
>>>> pjsip mailing list
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>>>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>>>>
>>>>
>>>
>>> _______________________________________________
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>>>
>>> pjsip mailing list
>>> pjsip at lists.pjsip.org
>>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>>>
>>>
>>>
>>> _______________________________________________
>>> Visit our blog: http://blog.pjsip.org
>>>
>>> pjsip mailing list
>>> pjsip at lists.pjsip.org
>>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>>>
>>>
>>
>> _______________________________________________
>> Visit our blog: http://blog.pjsip.org
>>
>> pjsip mailing list
>> pjsip at lists.pjsip.org
>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>
>
> _______________________________________________
> Visit our blog: http://blog.pjsip.org
>
> pjsip mailing list
> pjsip at lists.pjsip.org
> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>




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