[Spice-devel] QUIC Image Decompression Method takes much time

[Ritesh Prajapati]

Hi,

Currently, I am working and porting *Android Kitkat 4.4.2* on 
*All-winner A20 Soc* board with following hardware and software details.

  * A20 Allwinner SoC
  * 1 GB RAM
  * 8 GB NAND MMC
  * Linux Kernel Version 3.4.39
  * Malli 400 GPU
  * Android Kitkat Version 4.4.2
  * SPICE GTK Version 0.22


I have configured and installed *Linux Virtual Manager* in one *Ubuntu 
Desktop 14.04 Linux System* to configure and run SPICE Server on it. 
Then, I have developed one Android based application which is used to 
configure SPICE Client settings and to start SPICE Client for connecting 
with SPICE Server which is running on Ubuntu Desktop System.

After connecting to SPICE Server from SPICE Client, I have started one 
video sample which is stored in Ubuntu Desktop System on which SPICE 
Server is running.

Now, The issue is that the Video Sample which is streamed on A20 board 
is too much slow compare to playing it in normal mode using video player.

So, I have tried to debug SPICE Client code on A20 board and found that 
it takes around *300**to **400**millisecond* in 
*QUIC_UNCOMPRESS_RGB(prefix, type)* with prefix as 32 and type is RGB32 
to uncompress and decode one display frame which is coming from SPICE 
Server.

I have also observed that SPICE Client is using *QUIC Image 
decompression method* to uncompress compressed Image Frame.

So, Does anyone has idea or solution to decrease time in QUIC Image 
De-compression Method or any alternative De-compression Method which is 
faster than QUIC Mode?


-- 
Regards,
Ritesh Prajapati,
System Level Solutions (India) Pvt.Ltd.

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