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ペイロードフォーマットディスクリプタ

MJPEGビデオフォーマットディスクリプタ

Top / MJPEGビデオフォーマットディスクリプタ

The MJPEG Video Format Descriptor defines the characteristics of a specific video stream. It is used for formats that carry MJPEG video information, including all YUV/RGB variants.

フィールド

• Offset	Field	Size	Value	Description
  0	bLength?	1	Number	Size of this descriptor in bytes: 11
  1	bDescriptorType	1	Constant	CS_INTERFACE descriptor type
  2	bDescriptorSubtype	1	Constant	VS_FORMAT_MJPEG descriptor subtype
  3	bFormatIndex	1	Number	Index of this format descriptor
  4	bNumFrameDescriptors?	1	Number	Number of frame descriptors following that correspond to this format
  5	bmFlags?	1	Number	Specifies characteristics of this format
  6	bDefaultFrameIndex?	1	Number	Optimum Frame Index (used to select resolution) for this stream
  7	bAspectRatioX?	1	Number	The X dimension of the picture aspect ratio.
  8	bAspectRatioY?	1	Number	The Y dimension of the picture aspect ratio.
  9	bmInterlaceFlags?	1	Bitmap	Specifies interlace information.
  10	bCopyProtect?	1	Boolean	Specifies whether duplication of the video stream is restricted

bmFlags

• D0: FixedSizeSamples? indicates whether all video samples are the same size.

関連

• MJPEGビデオフレームディスクリプタ