最終更新:2015-12-11 (金) 16:10:42 (3051d)
非圧縮フレームディスクリプタ
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Uncompressed Frame Descriptor
- こっちは"Video"はつかない
| オフセット | フィールド | サイズ | メモ |
| 0 | bLength? | 1 | bFrameIntervalType?が0なら38 |
| 1 | bDescriptorType | 1 | |
| 2 | bDescriptorSubType | 1 | VS_FRAME_UNCOMPRESSED |
| 3 | bFrameIndex? | 1 | このフレームディスクリプタの番号 |
| 4 | bmCapabilities? | 1 | ビット0:スチルイメージサポート,ビット1:固定フレームレート |
| 5 | wWidth? | 2 | |
| 7 | wHeight? | 2 | |
| 9 | dwMinBitRate? | 4 | Specifies the minimum bit rate at the longest frame interval in units of bps at which the data can be transmitted. |
| 13 | dwMaxBitRate | 4 | Specifies the maximum bit rate at the shortest frame interval in units of bps at which the data can be transmitted. |
| 17 | dwMaxVideoFrameBufferSize? | 4 | Use of this field has been deprecated.Specifies the maximum number of bytes that the compressor will produce for a video frame or still image. |
| 21 | dwDefaultFrameInterval? | 4 | デフォルトのフレームレート |
| 25 | bFrameIntervalType? | 1 | 0:連続、1～255:The number of discrete frame intervals supported (n) |
| 26 | dwMinFrameInterval? | 4 | bFrameIntervalType?=0の場合。Shortest frame interval supported (at highest frame rate), in 100 ns units. |
| 30 | dwMaxFrameInterval? | 4 | bFrameIntervalType?=0の場合。Longest frame interval supported (at lowest frame rate), in 100 ns units. |
| 34 | dwFrameIntervalStep? | 4 | bFrameIntervalType?=0の場合。Indicates granularity of frame interval range, in 100 ns units. |
| 26 | dwFrameInterval(1) | 4 | bFrameIntervalType?=1の場合。個数分続く。 |
| 26+(4*n)-4 | dwFrameInterval(n) | 4 |
bLength
- Size of this descriptor in bytes when bFrameIntervalType? is 0: 38
- Size of this descriptor in bytes when bFrameIntervalType? > 0: 26+(4*n)
