i.MX Processors中的主题 Miracast Display Sink Source for Android 4.3

Miracast Display Sink Source for Android 4.3

jaiminthakkar — Wed, 03 May 2017 07:06:40 GMT

Hi,

We are using nitrogen6_max board with wl1837 module over SDIO interface. Android release is boundary-imx-kk4.4.3_2.0.0-ga . We have successfully interfaced WL1837 module. WiFi Direct/P2P functionality is working properly. We are using "WiFi-Display Sink" android application (which is provided by NXP/Freescale) as Miracast "sink" on nitrogen6_max board.

We are getting high latency (around 800 msec) in Mircast Sink. So we want to modify library (libfsl_wfd.so) for performance enhancement as per our requirement. Is it possible to get source code of library (libfsl_wfd.so) and unit test binary(wfd) provided by NXP/Freescale?

Our Setup: Nitrogen6_max + 1024x768 display + wl1837mod WiFi

Re: Miracast Display Sink Source for Android 4.3

jimmychan — Mon, 08 May 2017 07:43:43 GMT

Is the test result show the main cause of "high latency" related to the library?

Re: Miracast Display Sink Source for Android 4.3

jaiminthakkar — Tue, 16 May 2017 11:30:06 GMT

We are getting 200msec latency with Asus Miracast dongle. And we want to do debugging in WiFi-Display Sink library for such high latency. We are also planning to grab raw h264 frames from Miracast sink, for that also we need source code of Sink library.

Re: Miracast Display Sink Source for Android 4.3

pratikagrawal — Sat, 11 Nov 2017 19:59:21 GMT

Hello NXP Support team,

I am from same project, this thread I am resuming as Jaimin earlier asked for wifi-display sink source-code. We need this to debug further to fix quality issue.

We are facing multiple issues using miracast wfd sink ready-made library.

1) Sink always ask for 720p30 resolution for casting, we want to reduce this to 420p30.

2) WFD sink ask for IDR on very frequent, at same time it creates choppy on HDMI.

Earlier we were using Asus dongle in project, which was giving very good quality. Now we decided to make our on dongle device using IMX6D. We are ready with prototype but now, we are stuck with quality issue. Kindly help us on priority, we spent long time to debug this from source end.