992caacf11
This patch fixes typos in various Documentation txts. The patch addresses some words starting with the letters 'N'-'P'. Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
695 lines
18 KiB
Plaintext
695 lines
18 KiB
Plaintext
Encoder firmware API description
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================================
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_PING_FW
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Enum 128/0x80
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Description
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Does nothing. Can be used to check if the firmware is responding.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_START_CAPTURE
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Enum 129/0x81
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Description
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Commences the capture of video, audio and/or VBI data. All encoding
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parameters must be initialized prior to this API call. Captures frames
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continuously or until a predefined number of frames have been captured.
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Param[0]
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Capture stream type:
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0=MPEG
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1=Raw
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2=Raw passthrough
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3=VBI
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Param[1]
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Bitmask:
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Bit 0 when set, captures YUV
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Bit 1 when set, captures PCM audio
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Bit 2 when set, captures VBI (same as param[0]=3)
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Bit 3 when set, the capture destination is the decoder
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(same as param[0]=2)
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Bit 4 when set, the capture destination is the host
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Note: this parameter is only meaningful for RAW capture type.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_STOP_CAPTURE
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Enum 130/0x82
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Description
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Ends a capture in progress
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Param[0]
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0=stop at end of GOP (generates IRQ)
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1=stop immediate (no IRQ)
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Param[1]
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Stream type to stop, see param[0] of API 0x81
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Param[2]
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Subtype, see param[1] of API 0x81
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_AUDIO_ID
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Enum 137/0x89
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Description
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Assigns the transport stream ID of the encoded audio stream
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Param[0]
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Audio Stream ID
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_VIDEO_ID
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Enum 139/0x8B
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Description
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Set video transport stream ID
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Param[0]
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Video stream ID
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_PCR_ID
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Enum 141/0x8D
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Description
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Assigns the transport stream ID for PCR packets
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Param[0]
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PCR Stream ID
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_FRAME_RATE
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Enum 143/0x8F
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Description
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Set video frames per second. Change occurs at start of new GOP.
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Param[0]
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0=30fps
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1=25fps
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_FRAME_SIZE
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Enum 145/0x91
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Description
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Select video stream encoding resolution.
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Param[0]
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Height in lines. Default 480
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Param[1]
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Width in pixels. Default 720
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_BIT_RATE
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Enum 149/0x95
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Description
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Assign average video stream bitrate. Note on the last three params:
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Param[3] and [4] seem to be always 0, param [5] doesn't seem to be used.
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Param[0]
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0=variable bitrate, 1=constant bitrate
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Param[1]
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bitrate in bits per second
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Param[2]
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peak bitrate in bits per second, divided by 400
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Param[3]
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Mux bitrate in bits per second, divided by 400. May be 0 (default).
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Param[4]
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Rate Control VBR Padding
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Param[5]
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VBV Buffer used by encoder
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_GOP_PROPERTIES
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Enum 151/0x97
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Description
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Setup the GOP structure
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Param[0]
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GOP size (maximum is 34)
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Param[1]
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Number of B frames between the I and P frame, plus 1.
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For example: IBBPBBPBBPBB --> GOP size: 12, number of B frames: 2+1 = 3
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Note that GOP size must be a multiple of (B-frames + 1).
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_ASPECT_RATIO
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Enum 153/0x99
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Description
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Sets the encoding aspect ratio. Changes in the aspect ratio take effect
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at the start of the next GOP.
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Param[0]
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'0000' forbidden
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'0001' 1:1 square
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'0010' 4:3
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'0011' 16:9
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'0100' 2.21:1
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'0101' reserved
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....
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'1111' reserved
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_DNR_FILTER_MODE
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Enum 155/0x9B
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Description
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Assign Dynamic Noise Reduction operating mode
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Param[0]
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Bit0: Spatial filter, set=auto, clear=manual
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Bit1: Temporal filter, set=auto, clear=manual
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Param[1]
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Median filter:
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0=Disabled
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1=Horizontal
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2=Vertical
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3=Horiz/Vert
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4=Diagonal
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_DNR_FILTER_PROPS
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Enum 157/0x9D
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Description
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These Dynamic Noise Reduction filter values are only meaningful when
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the respective filter is set to "manual" (See API 0x9B)
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Param[0]
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Spatial filter: default 0, range 0:15
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Param[1]
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Temporal filter: default 0, range 0:31
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_CORING_LEVELS
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Enum 159/0x9F
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Description
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Assign Dynamic Noise Reduction median filter properties.
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Param[0]
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Threshold above which the luminance median filter is enabled.
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Default: 0, range 0:255
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Param[1]
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Threshold below which the luminance median filter is enabled.
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Default: 255, range 0:255
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Param[2]
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Threshold above which the chrominance median filter is enabled.
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Default: 0, range 0:255
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Param[3]
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Threshold below which the chrominance median filter is enabled.
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Default: 255, range 0:255
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_SPATIAL_FILTER_TYPE
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Enum 161/0xA1
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Description
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Assign spatial prefilter parameters
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Param[0]
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Luminance filter
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0=Off
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1=1D Horizontal
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2=1D Vertical
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3=2D H/V Separable (default)
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4=2D Symmetric non-separable
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Param[1]
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Chrominance filter
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0=Off
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1=1D Horizontal (default)
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_3_2_PULLDOWN
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Enum 177/0xB1
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Description
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3:2 pulldown properties
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Param[0]
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0=enabled
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1=disabled
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_VBI_LINE
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Enum 183/0xB7
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Description
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Selects VBI line number.
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Param[0]
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Bits 0:4 line number
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Bit 31 0=top_field, 1=bottom_field
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Bits 0:31 all set specifies "all lines"
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Param[1]
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VBI line information features: 0=disabled, 1=enabled
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Param[2]
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Slicing: 0=None, 1=Closed Caption
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Almost certainly not implemented. Set to 0.
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Param[3]
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Luminance samples in this line.
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Almost certainly not implemented. Set to 0.
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Param[4]
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Chrominance samples in this line
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Almost certainly not implemented. Set to 0.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_STREAM_TYPE
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Enum 185/0xB9
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Description
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Assign stream type
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Note: Transport stream is not working in recent firmwares.
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And in older firmwares the timestamps in the TS seem to be
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unreliable.
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Param[0]
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0=Program stream
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1=Transport stream
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2=MPEG1 stream
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3=PES A/V stream
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5=PES Video stream
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7=PES Audio stream
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10=DVD stream
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11=VCD stream
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12=SVCD stream
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13=DVD_S1 stream
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14=DVD_S2 stream
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_OUTPUT_PORT
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Enum 187/0xBB
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Description
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Assign stream output port. Normally 0 when the data is copied through
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the PCI bus (DMA), and 1 when the data is streamed to another chip
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(pvrusb and cx88-blackbird).
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Param[0]
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0=Memory (default)
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1=Streaming
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2=Serial
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Param[1]
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Unknown, but leaving this to 0 seems to work best. Indications are that
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this might have to do with USB support, although passing anything but 0
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only breaks things.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_AUDIO_PROPERTIES
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Enum 189/0xBD
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Description
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Set audio stream properties, may be called while encoding is in progress.
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Note: all bitfields are consistent with ISO11172 documentation except
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bits 2:3 which ISO docs define as:
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'11' Layer I
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'10' Layer II
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'01' Layer III
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'00' Undefined
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This discrepancy may indicate a possible error in the documentation.
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Testing indicated that only Layer II is actually working, and that
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the minimum bitrate should be 192 kbps.
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Param[0]
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Bitmask:
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0:1 '00' 44.1Khz
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'01' 48Khz
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'10' 32Khz
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'11' reserved
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2:3 '01'=Layer I
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'10'=Layer II
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4:7 Bitrate:
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Index | Layer I | Layer II
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------+-------------+------------
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'0000' | free format | free format
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'0001' | 32 kbit/s | 32 kbit/s
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'0010' | 64 kbit/s | 48 kbit/s
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'0011' | 96 kbit/s | 56 kbit/s
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'0100' | 128 kbit/s | 64 kbit/s
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'0101' | 160 kbit/s | 80 kbit/s
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'0110' | 192 kbit/s | 96 kbit/s
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'0111' | 224 kbit/s | 112 kbit/s
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'1000' | 256 kbit/s | 128 kbit/s
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'1001' | 288 kbit/s | 160 kbit/s
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'1010' | 320 kbit/s | 192 kbit/s
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'1011' | 352 kbit/s | 224 kbit/s
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'1100' | 384 kbit/s | 256 kbit/s
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'1101' | 416 kbit/s | 320 kbit/s
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'1110' | 448 kbit/s | 384 kbit/s
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Note: For Layer II, not all combinations of total bitrate
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and mode are allowed. See ISO11172-3 3-Annex B, Table 3-B.2
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8:9 '00'=Stereo
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'01'=JointStereo
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'10'=Dual
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'11'=Mono
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Note: testing seems to indicate that Mono and possibly
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JointStereo are not working (default to stereo).
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Dual does work, though.
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10:11 Mode Extension used in joint_stereo mode.
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In Layer I and II they indicate which subbands are in
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intensity_stereo. All other subbands are coded in stereo.
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'00' subbands 4-31 in intensity_stereo, bound==4
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'01' subbands 8-31 in intensity_stereo, bound==8
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'10' subbands 12-31 in intensity_stereo, bound==12
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'11' subbands 16-31 in intensity_stereo, bound==16
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12:13 Emphasis:
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'00' None
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'01' 50/15uS
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'10' reserved
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'11' CCITT J.17
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14 CRC:
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'0' off
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'1' on
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15 Copyright:
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'0' off
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'1' on
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16 Generation:
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'0' copy
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'1' original
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_HALT_FW
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Enum 195/0xC3
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Description
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The firmware is halted and no further API calls are serviced until the
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firmware is uploaded again.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_GET_VERSION
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Enum 196/0xC4
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Description
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Returns the version of the encoder firmware.
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Result[0]
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Version bitmask:
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Bits 0:15 build
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Bits 16:23 minor
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Bits 24:31 major
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_GOP_CLOSURE
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Enum 197/0xC5
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Description
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Assigns the GOP open/close property.
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Param[0]
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0=Open
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1=Closed
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_GET_SEQ_END
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Enum 198/0xC6
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Description
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Obtains the sequence end code of the encoder's buffer. When a capture
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is started a number of interrupts are still generated, the last of
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which will have Result[0] set to 1 and Result[1] will contain the size
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of the buffer.
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Result[0]
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State of the transfer (1 if last buffer)
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Result[1]
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If Result[0] is 1, this contains the size of the last buffer, undefined
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otherwise.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_PGM_INDEX_INFO
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Enum 199/0xC7
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Description
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Sets the Program Index Information.
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Param[0]
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Picture Mask:
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0=No index capture
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1=I frames
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3=I,P frames
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7=I,P,B frames
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Param[1]
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Elements requested (up to 400)
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Result[0]
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Offset in SDF memory of the table.
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Result[1]
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Number of allocated elements up to a maximum of Param[1]
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_VBI_CONFIG
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Enum 200/0xC8
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Description
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Configure VBI settings
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Param[0]
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Bitmap:
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0 Mode '0' Sliced, '1' Raw
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1:3 Insertion:
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'000' insert in extension & user data
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'001' insert in private packets
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'010' separate stream and user data
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'111' separate stream and private data
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8:15 Stream ID (normally 0xBD)
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Param[1]
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Frames per interrupt (max 8). Only valid in raw mode.
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Param[2]
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Total raw VBI frames. Only valid in raw mode.
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Param[3]
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Start codes
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Param[4]
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Stop codes
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Param[5]
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Lines per frame
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Param[6]
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Byte per line
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Result[0]
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Observed frames per interrupt in raw mode only. Rage 1 to Param[1]
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Result[1]
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Observed number of frames in raw mode. Range 1 to Param[2]
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Result[2]
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Memory offset to start or raw VBI data
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_DMA_BLOCK_SIZE
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Enum 201/0xC9
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Description
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Set DMA transfer block size
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Param[0]
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DMA transfer block size in bytes or frames. When unit is bytes,
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supported block sizes are 2^7, 2^8 and 2^9 bytes.
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Param[1]
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Unit: 0=bytes, 1=frames
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_GET_PREV_DMA_INFO_MB_10
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Enum 202/0xCA
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Description
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Returns information on the previous DMA transfer in conjunction with
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bit 27 of the interrupt mask. Uses mailbox 10.
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Result[0]
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Type of stream
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Result[1]
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Address Offset
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Result[2]
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Maximum size of transfer
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_GET_PREV_DMA_INFO_MB_9
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Enum 203/0xCB
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Description
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Returns information on the previous DMA transfer in conjunction with
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bit 27 of the interrupt mask. Uses mailbox 9.
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Result[0]
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Status bits:
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Bit 0 set indicates transfer complete
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Bit 2 set indicates transfer error
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Bit 4 set indicates linked list error
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Result[1]
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DMA type
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Result[2]
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Presentation Time Stamp bits 0..31
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Result[3]
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Presentation Time Stamp bit 32
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SCHED_DMA_TO_HOST
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Enum 204/0xCC
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Description
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Setup DMA to host operation
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Param[0]
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Memory address of link list
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Param[1]
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Length of link list (wtf: what units ???)
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Param[2]
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DMA type (0=MPEG)
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_INITIALIZE_INPUT
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Enum 205/0xCD
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Description
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Initializes the video input
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_FRAME_DROP_RATE
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Enum 208/0xD0
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Description
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For each frame captured, skip specified number of frames.
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Param[0]
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Number of frames to skip
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_PAUSE_ENCODER
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Enum 210/0xD2
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Description
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During a pause condition, all frames are dropped instead of being encoded.
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Param[0]
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0=Pause encoding
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1=Continue encoding
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_REFRESH_INPUT
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Enum 211/0xD3
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Description
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Refreshes the video input
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_COPYRIGHT
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Enum 212/0xD4
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Description
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Sets stream copyright property
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Param[0]
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0=Stream is not copyrighted
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1=Stream is copyrighted
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_EVENT_NOTIFICATION
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Enum 213/0xD5
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Description
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Setup firmware to notify the host about a particular event. Host must
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unmask the interrupt bit.
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Param[0]
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Event (0=refresh encoder input)
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Param[1]
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Notification 0=disabled 1=enabled
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Param[2]
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Interrupt bit
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Param[3]
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Mailbox slot, -1 if no mailbox required.
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-------------------------------------------------------------------------------
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Name CX2341X_ENC_SET_NUM_VSYNC_LINES
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Enum 214/0xD6
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Description
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Depending on the analog video decoder used, this assigns the number
|
|
of lines for field 1 and 2.
|
|
Param[0]
|
|
Field 1 number of lines:
|
|
0x00EF for SAA7114
|
|
0x00F0 for SAA7115
|
|
0x0105 for Micronas
|
|
Param[1]
|
|
Field 2 number of lines:
|
|
0x00EF for SAA7114
|
|
0x00F0 for SAA7115
|
|
0x0106 for Micronas
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Name CX2341X_ENC_SET_PLACEHOLDER
|
|
Enum 215/0xD7
|
|
Description
|
|
Provides a mechanism of inserting custom user data in the MPEG stream.
|
|
Param[0]
|
|
0=extension & user data
|
|
1=private packet with stream ID 0xBD
|
|
Param[1]
|
|
Rate at which to insert data, in units of frames (for private packet)
|
|
or GOPs (for ext. & user data)
|
|
Param[2]
|
|
Number of data DWORDs (below) to insert
|
|
Param[3]
|
|
Custom data 0
|
|
Param[4]
|
|
Custom data 1
|
|
Param[5]
|
|
Custom data 2
|
|
Param[6]
|
|
Custom data 3
|
|
Param[7]
|
|
Custom data 4
|
|
Param[8]
|
|
Custom data 5
|
|
Param[9]
|
|
Custom data 6
|
|
Param[10]
|
|
Custom data 7
|
|
Param[11]
|
|
Custom data 8
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Name CX2341X_ENC_MUTE_VIDEO
|
|
Enum 217/0xD9
|
|
Description
|
|
Video muting
|
|
Param[0]
|
|
Bit usage:
|
|
0 '0'=video not muted
|
|
'1'=video muted, creates frames with the YUV color defined below
|
|
1:7 Unused
|
|
8:15 V chrominance information
|
|
16:23 U chrominance information
|
|
24:31 Y luminance information
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Name CX2341X_ENC_MUTE_AUDIO
|
|
Enum 218/0xDA
|
|
Description
|
|
Audio muting
|
|
Param[0]
|
|
0=audio not muted
|
|
1=audio muted (produces silent mpeg audio stream)
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Name CX2341X_ENC_UNKNOWN
|
|
Enum 219/0xDB
|
|
Description
|
|
Unknown API, it's used by Hauppauge though.
|
|
Param[0]
|
|
0 This is the value Hauppauge uses, Unknown what it means.
|
|
|
|
-------------------------------------------------------------------------------
|
|
|
|
Name CX2341X_ENC_MISC
|
|
Enum 220/0xDC
|
|
Description
|
|
Miscellaneous actions. Not known for 100% what it does. It's really a
|
|
sort of ioctl call. The first parameter is a command number, the second
|
|
the value.
|
|
Param[0]
|
|
Command number:
|
|
1=set initial SCR value when starting encoding.
|
|
2=set quality mode (apparently some test setting).
|
|
3=setup advanced VIM protection handling (supposedly only for the cx23416
|
|
for raw YUV).
|
|
Actually it looks like this should be 0 for saa7114/5 based card and 1
|
|
for cx25840 based cards.
|
|
4=generate artificial PTS timestamps
|
|
5=USB flush mode
|
|
6=something to do with the quantization matrix
|
|
7=set navigation pack insertion for DVD
|
|
8=enable scene change detection (seems to be a failure)
|
|
9=set history parameters of the video input module
|
|
10=set input field order of VIM
|
|
11=set quantization matrix
|
|
12=reset audio interface
|
|
13=set audio volume delay
|
|
14=set audio delay
|
|
|
|
Param[1]
|
|
Command value.
|