[vlc-devel] VLC player 360 degree support in Vetinari 3.0.0-git Vetinari in Linux

[Ajit Kumar]

Hi,
      Now that it is working.
I was now experimenting to see if i could stream the 360 degree video to
another instance of vlc.
So, as to confirm whether changing the viewing angle on the streamed
content is also reflected in another instance of vlc which receives the
content ?

In my observation, i did not see the another vlc instance mimic the change
in viewing angle and am curious to know why it is not possible to do so?

Assuming there are multiple video_output modules compiled in my build:
I want to know if can tell from vlc verbose logs  the module in
"video_output" which is doing the change in viewing angle in my build.

Thanks
Ajit Kumar




On Thu, Oct 5, 2017 at 6:45 PM, Ajit Kumar <ajitku1984 at gmail.com> wrote:

> Hi Adrien/Thomas,
>                   Finally had success, Thanks a lot for the inputs.
>
>     I finally had success and it is working for me now.
>     I am able to change viewing angles using mouse actions and keys on
> keyboard. in my current build.
>     I don't exactly know what different did it t make his time.
>
>      But, this time I used ubuntu 16.04 .
>      I had re-built ffmpeg libs out of the vlc tree and re-configured
> vlc player as mentioned below to get it working at this point.
>
>    ./configure '--disable-vdpau' '--diable-qt'
>
>
> Thanks
> Ajit Kumar
>
>
> On Mon, Oct 2, 2017 at 5:00 PM, Adrien Maglo <magsoft at videolan.org> wrote:
>
>>
>>
>> On 30/09/2017 12:01, Ajit Kumar wrote:
>>
>>> Hi All,
>>>
>>
>> Hello Ajit,
>>
>>               Thanks for confirming 360 degree video works on Linux as
>>> well.
>>>
>>> I am using Ubuntu 14.04 machine to compile the Vetinari 3.0.0-git and
>>> compilation and playback of 360 degree video works.
>>>
>>> I then use my mouse and keyboard to change the viewing angle and notice
>>> no change in video on any mouse/keyboard actions.
>>>
>>>  From logs i could tell , the VOUT_DISPLAY_CHANGE_VIEWPOINT control
>>> request is coming to the module>video_ouput>xcb>x11.c but it is not
>>> honoured.
>>>
>>> Since, there is no appropriate handling for same in xcb found it in my
>>> code walk through.
>>>
>>> (Log snippet below)
>>>
>>> [a4f53650] xcb_x11 vout display error: Unknown request in XCB vout
>>> display
>>> [a4f53650] core vout display error: Failed to change Viewpoint
>>> [a4f87fc8] motiondetect filter debug: Counted 0 moving shapes.
>>>
>>> This makes me think though i have synced to the tip of tree in the
>>> master branch,
>>>
>>> I may not working on a branch in which the 360 support is available
>>> .Please correct me if i am wrong here.
>>>
>>> Or
>>>
>>> my current xcb module in video_output does not process any 360 degree
>>> navigation requests and i need to move to the correct version of xcb which
>>> supports it.
>>>
>>> Please redirect me to a branch which supports navigation of 360 degree
>>> video.
>>>
>>
>> The master branch does support 360 degree navigation.
>> As Thomas previously told you, on Linux you must use the OpenGL video
>> output. This is not currently the case according to your logs.
>>
>> Best regards,
>>
>>
>> --
>> MagSoft
>>
>
>
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