Video Call Research 001

Preface: I do not know how to write, how to write, think of what to write about it

Environment: Media server Windows7 + FreeSWITCH 1.4, LAN, client imsdroid, mobile small chili

With imsdroid default parameters set in the LAN no problem, however, put on the public online test, there will be mosaic (vase) phenomenon, need to solve; yesterday, the boss said that the resolution is not enough to use the resolution in the local area network to improve the resolutions ~ ~ Good, say dry

Digression: For imsdroid This knock, a long time ago probably swept a glance, June did a week, the video from Imsdroid proposed, integrated into the project; Wednesday get the app code, build, test, understand the problem, decide or use the Imsdroid bar, Anyway is based on Doubango this library (import into Eclipse is Android-ngn-stack), actually, actually, also has been engaged for 1 days, even if make a work record

The process has gone a lot of detours ~ ~

1. Android-ngn-stack has such a file with a few parameters in it:

Just started to think that these parameters: Mwidth, Mheight, Mframewidth, Mframeheight is the video transmission resolution, various modifications, after testing found that it does not work, because it is not set here!!!!

Ah ~ ~ again have to spit groove: Halfway decent, do not understand sip, do not understand the video, do not understand Android ...

Looking back or really want to study the code, the analysis is what to do with, what impact!!! These days urge the urgency, first take care of the need to say ~ ~

2. When you are discouraged, stumble upon the location where you set the video resolution:

Click Qos/qoe to enter after

Set the video format in "Preferred video Size", the default is CIF (352x288), Spit it out!!!!

3. Test results

3.1 Test on LAN with 720p,30fps, Mosaic (huaping) will appear

3.2 Server Traffic

Upload Peak: 2000kbit/s

Download Peak: 2000kbit/s

As for why the mosaic, a lot of reasons, and so determined to talk to you crossing, but also today's work

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Video Call Research 001