08-18-2004, 02:27 AM
|
|
Thinker
Join Date: Nov 2003
Posts: 484
|
|
New PocketTV much faster!
We have implemented a new fast stretching routine in PocketTV, which improves the overall performances (i.e. fps) up to 300% in some cases.
On devices that have the ATI Imageon 3200-series (like the Toshiba e800 series), this optimization is not useful, since the ATI chip provides much better stretching performances. So if you have a Toshiba e800 series, no need to read further!
But on most other devices, especially the new VGA devices that do not have the ATI chip, it should increase the performances very significantly.
Our new optimization is used when you play video with "Option > Size > Fit Screen" (i.e. strech to fit the display area), in either normal or Fullscreen mode, and when "Option > Fast Video" is selected (and "Option > Use ATI" is not selected).
Until now, when you selected "Option > Size > Fit Screen", PocketTV was using the GDI stretching routine, even if "Option > Fast Video" was selected. But on some devices, the GDI stretching routine est extremely slow, due to poor optimization in the OEM's video driver.
If you are interested to try it before we release it officially, please download and install PocketTV Classic 0.14.13 from http://pockettv.com/bin/PocketTVSetup-0.14.13.exe . If you have an earlier version of PocketTV installed and are not familiar with the upgrade process, please read the upgrade instructions.
To test the improvement, compare the fps you get with, both in Portrait and Fullscreen. In both tests below, "Options > Size > Fit Screen" must be selected.
Test 1: Performance using the old GDI streching routine (used in previous versions of PocketTV). For this, you should DE-SELECT "Option > Fast Video". Look at the fps. When doing the test in Fullscreen, fps can be seen after pausing (RIGHT D-pad key) and returning to normal mode (tapping on the screen).
Test 2: Performance using the new optimized streching routine. For this, you should SELECT "Option > Fast Video". Look at the fps. When doing the test in Fullscreen, fps can be seen after pausing (RIGHT D-pad key) and returning to normal mode (tapping on the screen).
In most cases, the fps will more than double in Test 2 (compared to Test 1). Naturally, you will still get better performances when selecting "Option > Size > Nominal (fast)", but often this causes the video to either be cropped or appear too small.
Please report your observations in this thread! (please indicate your device make and model).
If you don't have suitable mpeg files for testing, can use torme.mpg or other test streams located at www.pockettv.com/mpg . Don't use a QVGA-resolution stream if you intend to test on a QVGA device, since it would not require stretching in Fullscreen!
|
| |
|
|
|
|
|
|
Threaded Mode