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Regular Member
加入日期: Jan 2005 您的住址: 台灣台北
文章: 80
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有沒人試過直接餵CCIR656訊號給BT878
如此篇文章:
http://www.avsforum.com/avs-vb/arch...p/t-267735.html 我看了這篇文章, 我們的做法是把BT878的8個pin腳GPIO[0:7]接到 CCIR 656訊號DATA[0:7], 並把CCIR 656的clock接到BT878的GPCLK腳. 結果, 我在Windows下不灌任何BT878 WDM driver, 而用Dscaler來看, 發覺找不到任何訊號, 就像上述鏈結中LiOn作者所做的一樣, 故意選了 SDI silk capture card, 軟體選過所有的input(包含類比輸入端), 沒訊號, 就是沒訊號. 已經找人測過CCIR 656訊號來源應沒問題. 會用這個的目的, 是不想把已經是digital video的訊號再轉成類比再接給 BT878. 知道的前輩能否幫幫忙..拜拖..謝謝.. |
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2005-06-29, 04:36 PM
#1
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Master Member
  加入日期: Jun 2003
文章: 1,593
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DScaler的input type選CCIR或SDI(INPUTTYPE_CCIR).
DScaler的video format選NTSC. 你用的DScaler 版本 ? DScaler 硬體設定? Card Number 87 -SDI Silk 100 (S-Video Jumper) ? Card Number 88 -SDI Silk 100 (C-Video Jumper) ? Card Number 90 - SDI Silk 200 (S-Video Jumper) Card Number 91 - SDI Silk 200 (C-Video Jumper) ? // Card Number 87 - SDI Silk 100 (S-Video Jumper) { "SDI Silk 100 (S-Video Jumper)", 5, { { "Composite 1", INPUTTYPE_COMPOSITE, 0x00, }, { "Composite 2", INPUTTYPE_COMPOSITE, 0x01, }, { "Composite 3", INPUTTYPE_COMPOSITE, 0x03, }, { "S-Video", INPUTTYPE_SVIDEO, 0xD2, }, { "SDI", INPUTTYPE_CCIR, 0x00, }, }, PLL_28, TUNER_ABSENT, SOUNDCHIP_NONE, InitSasem, Sasem4ChannelInputSelect, SetAnalogContrastBrightness, SetAnalogSaturationU, SetAnalogSaturationV, SetAnalogHue, StandardSetFormat, CAudioDecoder::AUDIODECODERTYPE_DETECT, 0x1F800, {0xD, 0xE, 0xB, 0x7, 0, 0, } }, // Card Number 88 - SDI Silk 100 (C-Video Jumper) { "SDI Silk 100 (C-Video Jumper)", 5, { { "Composite 1", INPUTTYPE_COMPOSITE, 0x00, }, { "Composite 2", INPUTTYPE_COMPOSITE, 0x01, }, { "Composite 3", INPUTTYPE_COMPOSITE, 0x02, }, { "Composite 4", INPUTTYPE_COMPOSITE, 0x03, }, { "SDI", INPUTTYPE_CCIR, 0x00, }, }, PLL_28, TUNER_ABSENT, SOUNDCHIP_NONE, InitSasem, Sasem4ChannelInputSelect, SetAnalogContrastBrightness, SetAnalogSaturationU, SetAnalogSaturationV, SetAnalogHue, StandardSetFormat, CAudioDecoder::AUDIODECODERTYPE_DETECT, 0x1F800, {0xD, 0xE, 0xB, 0x7, 0, 0, } }, // Card Number 90 - SDI Silk 200 (S-Video Jumper) { "SDI Silk 200 (S-Video Jumper)", 7, { { "Composite 1", INPUTTYPE_COMPOSITE, 0x00, }, { "Composite 2", INPUTTYPE_COMPOSITE, 0x01, }, { "Composite 3", INPUTTYPE_COMPOSITE, 0x03, }, { "S-Video", INPUTTYPE_SVIDEO, 0xD2, }, { "SDI 1", INPUTTYPE_CCIR, 0x00, }, { "SDI 2", INPUTTYPE_CCIR, 0x01, }, { "SDI 3", INPUTTYPE_CCIR, 0x02, }, }, PLL_28, TUNER_ABSENT, SOUNDCHIP_NONE, InitSasem, Silk200InputSelect, SetAnalogContrastBrightness, SetAnalogSaturationU, SetAnalogSaturationV, SetAnalogHue, StandardSetFormat, CAudioDecoder::AUDIODECODERTYPE_DETECT, 0x1F800, {0xD, 0xE, 0xB, 0x7, 0, 0, } }, // Card Number 91 - SDI Silk 200 (C-Video Jumper) { "SDI Silk 200 (C-Video Jumper)", 7, { { "Composite 1", INPUTTYPE_COMPOSITE, 0x00, }, { "Composite 2", INPUTTYPE_COMPOSITE, 0x01, }, { "Composite 3", INPUTTYPE_COMPOSITE, 0x02, }, { "Composite 4", INPUTTYPE_COMPOSITE, 0x03, }, { "SDI 1", INPUTTYPE_CCIR, 0x00, }, { "SDI 2", INPUTTYPE_CCIR, 0x01, }, { "SDI 3", INPUTTYPE_CCIR, 0x02, }, }, PLL_28, TUNER_ABSENT, SOUNDCHIP_NONE, InitSasem, Silk200InputSelect, SetAnalogContrastBrightness, SetAnalogSaturationU, SetAnalogSaturationV, SetAnalogHue, StandardSetFormat, CAudioDecoder::AUDIODECODERTYPE_DETECT, 0x1F800, {0xD, 0xE, 0xB, 0x7, 0, 0, } }, // Card Number 54 - RS BT Card { "RS BT Card", 7, { { "Composite", INPUTTYPE_COMPOSITE, 3, }, { "S-Video", INPUTTYPE_SVIDEO, 1, }, { "Composite over S-Video", INPUTTYPE_COMPOSITE, 1, }, { "CCIR 1", INPUTTYPE_CCIR, 0, }, { "CCIR 2", INPUTTYPE_CCIR, 0, }, { "CCIR 3", INPUTTYPE_CCIR, 0, }, { "CCIR 4", INPUTTYPE_CCIR, 0, }, }, PLL_28, TUNER_ABSENT, SOUNDCHIP_NONE, InitRSBT, RSBTCardInputSelect, SetAnalogContrastBrightness, SetAnalogSaturationU, SetAnalogSaturationV, SetAnalogHue, StandardSetFormat, CAudioDecoder::AUDIODECODERTYPE_DETECT, 0, {0, 0, 0, 0, 0, 0, } }, 此文章於 2005-06-29 05:35 PM 被 tw1965 編輯. |
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2005-06-29, 05:23 PM
#2
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Regular Member
加入日期: Jan 2005 您的住址: 台灣台北
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引用:
我用的是4.1.11版的Dscaler 還要設定硬體嗎? 我的bt878卡是沒牌的, 我軟體設定是選一個叫 sdi silk 100的卡, 選的input是SDI.... 我忘了選video format.... 請問一下, 這樣的video input, BT878也是用DMA在傳資料給host memory嗎? Bt878上的硬體down scale功能還有用嗎? (因為BT878好像有不只一種的digital video輸入的方法) 實在太感激了.. |
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2005-06-29, 05:55 PM
#3
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Master Member
加入日期: Jun 2003
文章: 1,593
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DScaler 4.1.12支援的SDI Silk 100 有2種:
Card Number 87 -SDI Silk 100 (S-Video Jumper) Composite 1/Composite 2/Composite 3/S-VIDEO/SDI Card Number 88 -SDI Silk 100 (C-Video Jumper) Composite 1/Composite 2/Composite 3/Composite 4/SDI |
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2005-06-29, 06:38 PM
#4
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Regular Member
加入日期: Jan 2005 您的住址: 台灣台北
文章: 80
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引用:
謝謝...有訊號了...把兩個版子(一張是ccir656的generator, 另一張是Bt878也就是receiver)的地線綁在一起接地, 就可以了. dscaler軟體的設定我是選sdi silk (C-jumper)....可能線接的不好, 所以有雜訊. 謝謝您 |
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2005-06-30, 12:50 PM
#5
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