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Portrait mode video playback problem on DM3730

ninad icp
Intellectual 260 points
Other Parts Discussed in Thread: DM3730

Hello All,

I am using DM3730 and Android 2.3.4 with ti-dvsdk_dm3730-evm_04_03_00_06.

In landscape mode (default mode on our device i.e. fb rotation is 0) the 720P playback is fine using DSP engine. I can see the smooth video playback on the screen.

I  portrait mode (fb rotation is set to 270), the same video playback is seen garbage (pink screen on the overlay window) on screen. If I disable overlay then PSP uses the software renderer and the video playback is fine.

May I know what changes are required to see the proper video in portrait (screen rotation 270) mode. Ideally DSP/overlay engine should read the rotation angle from framebuffer and set the same but if it's not the case then may I know the settings?

Thanks,

-Ninad.

  • 0
    Intellectual 260 points

    There seems to be bug in omap_vout kernel driver.

    The dma buffer is not being assigned correctly in 2.6.37 kernel for the VRFB to perform rotating thus VRFB end up doing processing on incorrect buffer and shows garbage on screen. After passing the correct buffers the rotation is happening properly.

    Also, it seems that the DSP is not being tested properly on 2.6.37 kernel so, the issues for scaling after rotation is still there.