[AndyK]

I understand that XBMC somehow fails to output a resolution higher than 720p even though 1080p is selected in Apple TV OS. But I nevertheless I have some questions about 1080p display support:

Can the Apple TV OS output 1080p24?

As far as I know, the HDMI standard(s) doesn't support 720p at 24 Hz, only at 50 and 60 Hz. What will XBMC then do when playing back a 1080p24 file? Will it do 2:3 pulldown?

[davilla]

This is a piece of my logging...

22:05:47 T:53722624 M: 35876864 DEBUG: CoreAudioRenderer::Initialize: Input Stream Format [lpcm] Mixable 2 Channel 16-bit Signed Integer (48000Hz)
22:05:47 T:53722624 M: 35885056 DEBUG: CoreAudioRenderer::Initialize: Output Stream Format [lpcm] Mixable 4 Channel 32-bit Floating Point (48000Hz)
22:05:47 T:53722624 M: 35872768 DEBUG: CoreAudioRenderer::Initialize: Renderer Configuration - Chunk Len: 2048, Max Cache: 192000 (1000ms).
22:05:47 T:53722624 M: 35868672 INFO: CoreAudioRenderer::Initialize: Successfully configured audio output.
22:05:47 T:53722624 M: 35868672 DEBUG: CDVDPlayerAudio:: synctype set to 0: clock feedback
22:05:47 T:53722624 M: 35864576 DEBUG: CoreAudioRenderer::Resume: Resuming Playback.
22:05:47 T:53703680 M: 35352576 DEBUG: CrystalHD: Added a new Buffer, ReadyListCount: 0
22:05:47 T:52688384 M: 32899072 NOTICE: fps: 23.976025, pwidth: 1920, pheight: 800, dwidth: 1920, dheight: 800
22:05:47 T:52688384 M: 32899072 DEBUG: OutputPicture - change configuration. 1920x800. framerate: 23.98
22:05:47 T:52688384 M: 32899072 NOTICE: Display resolution DESKTOP : 1280x720 @ 60.00 - Full Screen (12)
22:05:47 T:52688384 M: 32894976 DEBUG: CVideoReferenceClock: Clock speed 100.099997%
22:05:47 T:53868544 M: 32718848 DEBUG: CDVDPlayer::HandleMessages - player started 2
22:05:47 T:53868544 M: 32718848 DEBUG: CDVDPlayer::HandleMessages - player started 1
22:05:47 T:53868544 M: 32718848 DEBUG: CDVDPlayer::SetCaching - caching state 3
22:05:47 T:53722624 M: 32718848 DEBUG: CDVDPlayerAudio:: Discontinuity - was:41689.000000, should be:41689.000000, error:0.000000
22:05:47 T:53868544 M: 32718848 DEBUG: CDVDPlayer::SetCaching - caching state 0
22:05:47 T:51561472 M: 32698368 DEBUG: Thread 51561472 terminating (autodelete)
22:05:47 T:53703680 M: 31621120 DEBUG: CrystalHD: Added a new Buffer, ReadyListCount: 0

If you notice the fat part....Does it rescale back to 720P output or is it just a NOTICE message as is...not really doing that...

scales to desktop resolution, DEBUG vs NOTICE is just how the log message is formatted, All DEBUG logging goes away in a release build unless you have debugger logging enabled.

[dan1son]

I understand that XBMC somehow fails to output a resolution higher than 720p even though 1080p is selected in Apple TV OS. But I nevertheless I have some questions about 1080p display support:

Can the Apple TV OS output 1080p24?

As far as I know, the HDMI standard(s) doesn't support 720p at 24 Hz, only at 50 and 60 Hz. What will XBMC then do when playing back a 1080p24 file? Will it do 2:3 pulldown?

Yes.