MediaPlayerSetVideoCallbacks 方法

Set callbacks and private data to render decoded video to a custom area in memory. Use libvlc_video_set_format() or libvlc_video_set_format_callbacks() to configure the decoded format. Warning Rendering video into custom memory buffers is considerably less efficient than rendering in a custom window as normal. For optimal perfomances, VLC media player renders into a custom window, and does not use this function and associated callbacks. It is highly recommended that other LibVLC-based application do likewise. To embed video in a window, use libvlc_media_player_set_xid() or equivalent depending on the operating system. If window embedding does not fit the application use case, then a custom LibVLC video output display plugin is required to maintain optimal video rendering performances. The following limitations affect performance: Hardware video decoding acceleration will either be disabled completely, or require(relatively slow) copy from video/DSP memory to main memory. Sub-pictures(subtitles, on-screen display, etc.) must be blent into the main picture by the CPU instead of the GPU. Depending on the video format, pixel format conversion, picture scaling, cropping and/or picture re-orientation, must be performed by the CPU instead of the GPU. Memory copying is required between LibVLC reference picture buffers and application buffers (between lock and unlock callbacks).

public void SetVideoCallbacks(
	MediaPlayerLibVLCVideoLockCb lockCb,
	MediaPlayerLibVLCVideoUnlockCb unlockCb,
	MediaPlayerLibVLCVideoDisplayCb displayCb
)