Re: Regarding the demo shown at CES 2019

[developers-linux@xxxxxxxxxxxxx]

Hi Zheng-san

Thanks for the response.

>→Based on server-static.js, just change video_path to pipe file.
I tried the above but the video was not displayed.
(Sample out.h 264 has been successfully displayed.)

The storage location of pipe file seems to be OK.
Writing to pipe file does not seem to have any problem.
If there are points that can be considered as causes, please pointed out.

>→No, It doesn't use ffmpeg or gstreamer. Use boardway like this.
>   https://github.com/mbebenita/Broadway
Thank you for the information.

Regards,
Kikugawa

>Hi Kikugawa-san
>
> > 　1. Is this done based on the sample code of server-tcp.js ?
> > 　　 * https://github.com/131/h264-live-player/blob/master/server-tcp.js
>→Based on server-static.js, just change video_path to pipe file.
>
> > 　2. The decode of H.264 is performed inside javascript of 
>h264-live-player.
> >       Does that mean it does not use anything like FFmpeg or GStreamer ?
>→No, It doesn't use ffmpeg or gstreamer. Use boardway like this.
>   https://github.com/mbebenita/Broadway
>
>BR,
>Zheng
>
>On 2019/02/07 16:04, developers-linux@xxxxxxxxxxxxx wrote:
>> Hi Ohiwa-san
>> 
>> I have additional questions.
>> I'm afraid of asking these kinds of basic questions,
>> but that is because I don't have much experience with h264-live-player and 
>> JavaScript.
>> 
>> <List of questions>
>> 　1. Is this done based on the sample code of server-tcp.js ?
>> 　　 * https://github.com/131/h264-live-player/blob/master/server-tcp.js
>> 
>> 　2. The decode of H.264 is performed inside javascript of h264-live-player.
>>       Does that mean it does not use anything like FFmpeg or GStreamer ?
>> 
>> Regards,
>> Kikugawa
>> 
>>> Hi Ohiwa-san
>>>
>>> Thanks for the response.
>>>
>>>> This demo uses HTML5 instead of Qt and draws with chromium.
>>>> Current SDL core on AGL cannot use Qt lib.
>>>>
>>>> The video stream output from SDL core is raw H.264 and cannot be played
>>>> as it is.
>>>> In this demo, h264-live-player decodes raw H.264 and Javascript's
>>>> Canvas draws on chromium as PoC.
>>>
>>> Thank you for providing various information.
>>> I will try.
>>> If I have further questions, I will ask again.
>>>
>>> Thank you very much.
>>>
>>> Regards,
>>> Kikugawa
>>>
>>>> Hi Kikugawa-san,
>>>>
>>>>> For the No.2,
>>>>> It is using the navigation image from the smartphone by using SDL.
>>>>> Could you tell me how you achieve it ?
>>>>
>>>> This demo uses HTML5 instead of Qt and draws with chromium.
>>>> Current SDL core on AGL cannot use Qt lib.
>>>>
>>>> The video stream output from SDL core is raw H.264 and cannot be played 
>>>> as
>>>> it
>>>> is.
>>>> In this demo, h264-live-player decodes raw H.264 and Javascript's Canvas
>>>> draws on chromium as PoC.
>>>>
>>>> We cannot post the SDL cord of the demo
>>>> because we use some binary codes by the demo of this SDL.
>>>> We're going to post other cords of demo 3.
>>>>
>>>> BR,
>>>> Oiwa
>>>>
>>>> -----Original Message-----
>>>> From: developers-linux@xxxxxxxxxxxxx [mailto:developers-linux@brison-inc.
>>>> jp]
>>>> Sent: Tuesday, February 05, 2019 8:46 AM
>>>> To: 大岩　敏和/TOSHIKAZU OHIWA; automotive-discussions@lists.
>>>> linuxfoundation.
>>>> org
>>>> Subject: RE:  Regarding the demo shown at CES 2019
>>>>
>>>> Hello Ohiwa-san,Walt-san,
>>>>
>>>> Thanks for the response.
>>>>
>>>>> For the No.1,
>>>>> as Walt-san said, only a few can be posted.
>>>>> Currently posting in order.
>>>>
>>>>> That is a picture of Demo 3. The source code is not available for that 
>>>>> demo
>>>>> yet. Some of it has been posted in gerrit. Hopefully one of the demo 3
>>>>> developers can chime in.
>>>> I understand.
>>>>
>>>>> For the No.2,
>>>>> It is using the navigation image from the smartphone by using SDL.
>>>> Could you tell me how you achieve it ?
>>>>
>>>> We are currently trying to achieve the video streaming of the navigation
>>>> image(h.264) written in pipe from SDL core by using WebEngineView(+
>>>> Gstreamer) and QMediaPlayer of Qt.
>>>>
>>>> For the above demo, is it implemented by Qt ?
>>>> Or is it using something other than Qt ( for instance WaylandSink ) ?
>>>>
>>>> ※The R-Car M3 is used in the demo machine.
>>>>
>>>>> By the way,
>>>>> I've seen an article where your company is runnig SDL in AGL.
>>>>> Are you still continuing now?
>>>> Yes, we are still doing various things.
>>>>
>>>> Regards,
>>>> Kikugawa
>>>>
>>>>> Hello kikugawa-san,
>>>>>
>>>>> I reply to your questions.
>>>>>
>>>>> For the No.1,
>>>>> as Walt-san said, only a few can be posted.
>>>>> Currently posting in order.
>>>>>
>>>>> For the No.2,
>>>>> It is using the navigation image from the smartphone by using SDL.
>>>>>
>>>>> By the way,
>>>>> I've seen an article where your company is runnig SDL in AGL.
>>>>> Are you still continuing now?
>>>>>
>>>>> BR,
>>>>> Toshikazu Oiwa
>>>>>
>>>>> -----Original Message-----
>>>>> From: automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx [mailto:
>>>>> automotive-discussions-bounces@xxxxxxxxxxxxxxxxxxxxxxxxx] On Behalf Of
>>>>> developers-linux@xxxxxxxxxxxxx
>>>>> Sent: Friday, February 01, 2019 8:18 PM
>>>>> To: automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx
>>>>> Subject:  Regarding the demo shown at CES 2019
>>>>>
>>>>> Hello,
>>>>>
>>>>> I'd like to know the details about the demo that was exibited at CES 
>>>>> 2019(*
>>>>> 1)
>>>>> ?
>>>>> (*1)http://monoist.atmarkit.co.jp/mn/articles/1901/16/news070.html
>>>>>
>>>>> I have the following questions. Could you send me the answers for them ?
>>>>>
>>>>> 1. Is the source of the demo at CES 2019 opened to the public ?
>>>>>    If it is not yet opened, do you have the plan to make it open to the
>>>>> public ?
>>>>>
>>>>> 2. There is the picture(the 4th) that the navigation and the music 
>>>>> screen
>>>>> (Spotify) are both displayed.
>>>>>    For the navigation image, is it using the navigation image from the
>>>>> smartphone by using SDL ?
>>>>>    Or the navigation image is displayed by using Mapbox ?
>>>>>
>>>>> Regards,
>>>>> kikugawa
>>>>> _______________________________________________
>>>>> automotive-discussions mailing list
>>>>> automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx
>>>>> https://lists.linuxfoundation.org/mailman/listinfo/automotive-
>>>>> discussions
>> _______________________________________________
>> automotive-discussions mailing list
>> automotive-discussions@xxxxxxxxxxxxxxxxxxxxxxxxx
>> https://lists.linuxfoundation.org/mailman/listinfo/automotive-discussions
>> 
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