PCDVD數位科技討論區 - 瀏覽單個文章 - 請問wmv hd 檔案怎樣開硬解？

引用:

作者ccii

把Internal Filters部分中的Transform Filters中的WMV 1/2/3勾勾取消後

所有wmv 檔案都出現DXVA 的字樣，但還和本來一樣，WVC1 的wmv hd 檔播放很流暢，
但其他wmv 但卻很慢。
留意了DXVA1 裡面的字，WVC1 的wmv 檔和其他wmv 檔是不同的~

播WVC1 的wmv hd 檔, 很流暢：
DXVA1: vc-1 bitstream decoder
http://fs1.yourupload.com/image/dir...0/untitled1.jpg

播Windows Media Video 9 的wmv hd 檔, 很慢：
DXVA1: WMV9 Post Processing
http://fs1.yourupload.com/image/dir...Yo/untitled.jpg

請問vxr ，如果你的電腦看這裡的檔案，DXVA1: 裡面是什麽字呢？我想知道是不是和我一樣而已~ 還是顯卡不同，也不可能一樣呢？
http://www.microsoft.com/windows/wi...ntshowcase.aspx

這要看dxva profile...
以及GPU對DXVA Profile的支援層級...
我們可以看一下msdn提供的關於一些dxva的巨集..
表達出dxva profile..
以下是目前最常見的profile:
DEFINE_GUID(DXVADDI_ModeMPEG2_MoComp, 0xe6a9f44b, 0x61b0, 0x4563,0x9e,0xa4,0x63,0xd2,0xa3,0xc6,0xfe,0x66);
DEFINE_GUID(DXVADDI_ModeMPEG2_IDCT, 0xbf22ad00, 0x03ea, 0x4690,0x80,0x77,0x47,0x33,0x46,0x20,0x9b,0x7e);
DEFINE_GUID(DXVADDI_ModeMPEG2_VLD, 0xee27417f, 0x5e28, 0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);

DEFINE_GUID(DXVADDI_ModeH264_A, 0x1b81be64, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeH264_B, 0x1b81be65, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeH264_C, 0x1b81be66, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeH264_D, 0x1b81be67, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeH264_E, 0x1b81be68, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeH264_F, 0x1b81be69, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);

DEFINE_GUID(DXVADDI_ModeWMV8_A, 0x1b81be80, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeWMV8_B, 0x1b81be81, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);

DEFINE_GUID(DXVADDI_ModeWMV9_A, 0x1b81be90, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeWMV9_B, 0x1b81be91, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeWMV9_C, 0x1b81be94, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);

DEFINE_GUID(DXVADDI_ModeVC1_A, 0x1b81beA0, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeVC1_B, 0x1b81beA1, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeVC1_C, 0x1b81beA2, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_ModeVC1_D, 0x1b81beA3, 0xa0c7, 0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);

通常是英文字母愈後面..
表示實作的層級(Level)愈高..
就你的ATi對WMV加速能力來看...
僅能支援WMV8/9_A...
也就是Post Processing部分..
而且還是丟給Pixel Shader做..
不是直接硬線設計...

個人手邊目前正在用的是nVIDIA的GPU..
VP 2.0的版本..
雖然說就VC-1 DXVA能力來看..
沒有做到ModeVC1_D(VLD)..
但是就整個方案來看..
他是最完整的(意思就是幾乎通吃整個DXVA Profile)..
如果是VP3.0的話(只有G98晶片有做到VP3.0的支持..)..
這是目前配套DXVA Profile極為完整的(可以說是全部通吃...)...
nVIDIA的全部都是硬線設計...!!
沒有丟給Pixel Shader做..

看這種東西很單純..
直接分廠商最快..
ATi就是UVD方案..
nVIDIA就是PureVideo(對應VP版本..)..

DXVA1後面那個數字指的是使用的API版本..
Vista下(或著更新的OS)提供2.0版本的function可以呼叫..