- Configure Audio Hardware
- Render Method
- Controls the method used by the player to render the video. The options are:
- High Quality Pixel Shader - This is the highest quality of the output methods. It uses 44bits/pixel of memory, plus a further 512kB of memory for lookup textures. It does the YV12->RGB conversion in 2 passes, using a lookup texture to maintain 100% accuracy. It is the slowest of the renderers, but for most material this will have no effect whatsoever – it only effects videos with very high resolution (which the xbox struggles to decode anyway) such as 720p material. Memory is also a problem when you are dealing with videos this large, anyway, so the low quality pixel shader is often the only option. Screen shot and alpha-blending work perfectly.
- Low Quality Pixel Shader - This is the most memory efficient output method, using only 12bits/pixel. It uses a fast pixel shader to do the YV12->RGB conversion which while reasonably accurate, is not 100% accurate. It may suffer from slight colour-banding in softly graduated scenes. It is almost as fast as the Hardware Overlays method, and should be used whenever memory is a priority. Screenshot + alpha blending work perfectly.
- Hardware Overlays - This uses a dedicated path on the GPU for optimal performance speed-wise. It is the fastest of the renderers, and generally provides very good quality (equivalent to the High Quality Pixel Shader) but it does have some problems. It is the most memory hungry renderer (56 bits/pixel), and may get some extreme colours quite incorrect, due to the fact that it doesn't clamp the YV12->RGB conversion. These show up as extremely strong green/cyan colours appearing as red/magenta. This does NOT tend to happen with good source material though – it usually only shows up with material captured + digitized using sub-standard equipment. With Hardware Overlays you also lose support for alpha-blending, so the video on screen display may appear to have black blobs around it rather than nice drop-shadows. Lastly, you also lose support for accurate screenshots – the screenshots are only approximations of what occurs on screen, and will not exhibit any of these problems.
- Resolution
- Controls the resolution at which video is displayed. It causes XBMC to upsample / downsample the video to the selected format.
- Framerate Conversion
- Allows you to play PAL videos at NTSC framerates and vice-versa
- Bypass CD Selection
- Allows you to skip the CD Selection dialog, which is usually displayed after clicking on a stacked movie file.
- Auto resume from last position
- When enabled, XBMC will automatically resume videos always from the last position that you were viewing them, even after restarting the system.
Note: You can also start a movie from the last stopped position by opening the context-menu on a movie file (white button on the gamepad) or by just clicking the "Play" button on the remote without the need to have this option enabled.
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