CM-T3530: WinCE: Video playback
Contents
Introduction
The OMAP3530 includes a built-in TMS320C64X+ DSP Core that provides advanced hardware acceleration support for media encoding / decoding.
For further details, refer to the OMAP35x Technical Reference Manual.
Windows CE Media Codec Framework
The OMAP35x Media Codec Framework for Windows CE is comprised of a set of software components integrated into the operating system environment:
- DirectShow Filter - Direct Show is the standard media streaming architecture within the Windows CE operating system.
- Codec Engine - Codec Engine is a framework for creation and interaction with multimedia codecs, running either locally or on another processor (DSP).
DSP codecs (i.e. the ones in the DSP server/combo) can be utilized through the DirectShow framework in Windows Media Player.
Creating Videos
The DirectShow video application framework currently supports accelerated MPEG4, MPEG2, H.264 and MP3 wrapped in an AVI container with video quality up to D1 (720x480p @ 30 fps).
The framework also supports WMV content playback. WMV hardware acceleration is not implemented, therefore only videos of up to 640x480 @ 15 fps are supported.
Example video clips can be downloaded from Apple trailers. Use Quicktime Pro to download and save the trailer videos. Apple trailer videos must be converted for compatibility with Windows CE media player. Use the Super conversion tool.
The tables below provide sample Super configuration settings for video conversion.
Output Container:
| Format : | AVI |
| Encoder : | FFMPEG |
| DirectShow Decode : | OFF |
Output Audio Codec:
| Codec : | mp3 |
| Sampling Freq : | 22050 Hz |
| Channels : | 2 |
| Bit rate : | 96 Kbps |
Output Video Codecs:
| Codec : | MPEG-II |
| Width : | 848 pixels |
| Height : | 480 pixels |
| Frame rate : | 30 fps |
| Bit rate : | 2064 Kbps |
| Hi Quality : | Unchecked |
| Top Quality : | Unchecked |
| Stretch It : | Checked |
| 48K Audio : | Checked |
| Codec : | MPEG-4 |
| Width : | 848 pixels |
| Height : | 480 pixels |
| Frame rate : | 30 fps |
| Bit rate : | 2064 Kbps |
| Hi Quality : | Unchecked |
| Top Quality : | Unchecked |
| Stretch It : | Checked |
| 48K Audio : | Checked |
| FourCC : | DIVX |
| Codec : | H.264/AVC |
| Width : | 720 pixels |
| Height : | 480 pixels |
| Frame rate : | 30 fps |
| Bit rate : | 1008 Kbps |
| Hi Quality : | Unchecked |
| Top Quality : | Unchecked |
| Stretch It : | Checked |
| 48K Audio : | Checked |
| H.264 Profile : | Baseline (CABAC off) |
| H.264 Level : | 3 |
| FourCC : | DIVX |
Troubleshooting
Known Issues
- Media Player (ceplayer.exe) registry settings might get corrupted during video playback. If rebooting the system does not fix the problem, please delete the following registry key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\CEPlayer]
