Windows 7 system N card, A card HD hard solution playback optimal settings

Recent readers have recently reported that in Win7 I do not know how to enable HD video playback mode, because the same settings in XP and Win7 effect is very different. Through repeated practice, the author summarizes the three common HD formats of MPEG2, H.264 and VC-1, and the best way to open them under N card and A card.

step 01: How to hard-play MPEG2 video playback

Start the "Perfect Decoding 20091225 Edition" setting center. In the case of an N card, the decoding mode seeks HDTV (Nvidia PureVideo) and cancels the "auto mode"; if it is an A card, the HDTV (ATI UVD) is played and the "auto mode" is canceled. The main player finds kmplayer"; the video renderer finds VMR9 without rendering (corrected black bit); MPEG2 TS/PS splitter seeks Haali" and "Nero"; MPEG2 video decoder seeks CyberLink (DXVA)"; audio decoder seeks Sonic". Then run the perfect decoding test MPEG2 HD video "sample.mpg". Press the Tab key to display the playback information, the output mode is "DXVA", the CPU usage is 5%, that is, the hard solution is successfully turned on.

step 02: How to harden the playback of H.264 video

Start the perfect decoding setting center. For N card, decode mode to play HDTV (Nvidia PureVideo), and cancel the "auto mode"; if it is A The card should play HDTV (ATI UVD) and cancel the "auto mode". The main player looks for kmplayer"; the video renderer finds EVR enhanced rendering (C/A)"; both the AVI splitter and the MKV splitter Looking for Haali"; H.264 video decoder looking for CyberLink (DXVA)"; audio decoder looking for CyberLink". Then run the perfect decoding and open the HD video file "HD Auto Show.mts" for testing. Press the Tab key to display the playback information. The output mode is “DXVA” and the CPU usage is 6%, which means that the hard solution is successfully enabled.

step 03: Enable A card hard release to play VC-1 video

Start perfect decoding setting center, decode mode to find HDTV (ATI UVD), and cancel the following "auto mode" "The main player is looking for kmplayer"; the video renderer is looking for VMR9 without rendering (correcting black bit)"; both the AVI splitter and the MKV splitter are looking for Haali"; the VC-1 video decoder is for CyberLink (DXVA)"; audio decoding Looking for CyberLink." Then run the perfect decoding and open the video file "HD Album.wmv" test. Press the Tab key to display the playback information. The output mode is “DXVA” and the CPU usage is 14%, which means that the hard solution is successfully enabled.

Which kinds of renderers support VC-1 hard release playback?

In addition to the "VMR9 No Rendering (Fixed Black Bit)" renderer, the "VMR9 No Rendering" and "Overlay Synthesizer (Default)" modes also support VC-1 hard solutions.

step 04: Use WMP12 hard solution to play VC-1
In the "perfect decoding" setting, VC-1 video decoder finds Microsoft", and enable hardware acceleration function, can enable N card VC -1 hard solution. But after the actual measurement, N card playing VC-1 in Win7 is unstable, often can not be hard solved or error. And the use of the system's own WMP12 to play is the most simple hard solution. Start WMP12, single Click “Tools” → “Options” → “Performance” to search for DirectX Video Acceleration (X) for WMV files. Then open "HD Album.wmv" to test the playback fluency. Check the CPU usage of the WMP12 to play VC-1 video in the Task Manager. The average CPU usage is about 5%, indicating that the VC-1 hard solution is successfully enabled. (图/文吴青)