[media] cx2341x.rst: Add the contents of fw-encoder-api.txt

Convert its contents to ReST and add to cx2341x.rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

Documentation/media/v4l-drivers/cx2341x.rst

 The cx2341x driver
 ==================
 
+Encoder firmware API description
+--------------------------------
+
+CX2341X_ENC_PING_FW
+~~~~~~~~~~~~~~~~~~~
+
+Enum: 128/0x80
+
+Description
+^^^^^^^^^^^
+
+Does nothing. Can be used to check if the firmware is responding.
+
+
+
+CX2341X_ENC_START_CAPTURE
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 129/0x81
+
+Description
+^^^^^^^^^^^
+
+Commences the capture of video, audio and/or VBI data. All encoding
+parameters must be initialized prior to this API call. Captures frames
+continuously or until a predefined number of frames have been captured.
+
+Param[0]
+^^^^^^^^
+
+Capture stream type:
+
+	- 0=MPEG
+	- 1=Raw
+	- 2=Raw passthrough
+	- 3=VBI
+
+
+Param[1]
+^^^^^^^^
+
+Bitmask:
+
+	- Bit 0 when set, captures YUV
+	- Bit 1 when set, captures PCM audio
+	- Bit 2 when set, captures VBI (same as param[0]=3)
+	- Bit 3 when set, the capture destination is the decoder
+	  (same as param[0]=2)
+	- Bit 4 when set, the capture destination is the host
+
+.. note:: this parameter is only meaningful for RAW capture type.
+
+
+
+CX2341X_ENC_STOP_CAPTURE
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 130/0x82
+
+Description
+^^^^^^^^^^^
+
+Ends a capture in progress
+
+Param[0]
+^^^^^^^^
+
+- 0=stop at end of GOP (generates IRQ)
+- 1=stop immediate (no IRQ)
+
+Param[1]
+^^^^^^^^
+
+Stream type to stop, see param[0] of API 0x81
+
+Param[2]
+^^^^^^^^
+
+Subtype, see param[1] of API 0x81
+
+
+
+CX2341X_ENC_SET_AUDIO_ID
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 137/0x89
+
+Description
+^^^^^^^^^^^
+
+Assigns the transport stream ID of the encoded audio stream
+
+Param[0]
+^^^^^^^^
+
+Audio Stream ID
+
+
+
+CX2341X_ENC_SET_VIDEO_ID
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 139/0x8B
+
+Description
+^^^^^^^^^^^
+
+Set video transport stream ID
+
+Param[0]
+^^^^^^^^
+
+Video stream ID
+
+
+
+CX2341X_ENC_SET_PCR_ID
+~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 141/0x8D
+
+Description
+^^^^^^^^^^^
+
+Assigns the transport stream ID for PCR packets
+
+Param[0]
+^^^^^^^^
+
+PCR Stream ID
+
+
+
+CX2341X_ENC_SET_FRAME_RATE
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 143/0x8F
+
+Description
+^^^^^^^^^^^
+
+Set video frames per second. Change occurs at start of new GOP.
+
+Param[0]
+^^^^^^^^
+
+- 0=30fps
+- 1=25fps
+
+
+
+CX2341X_ENC_SET_FRAME_SIZE
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 145/0x91
+
+Description
+^^^^^^^^^^^
+
+Select video stream encoding resolution.
+
+Param[0]
+^^^^^^^^
+
+Height in lines. Default 480
+
+Param[1]
+^^^^^^^^
+
+Width in pixels. Default 720
+
+
+
+CX2341X_ENC_SET_BIT_RATE
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 149/0x95
+
+Description
+^^^^^^^^^^^
+
+Assign average video stream bitrate.
+
+Param[0]
+^^^^^^^^
+
+0=variable bitrate, 1=constant bitrate
+
+Param[1]
+^^^^^^^^
+
+bitrate in bits per second
+
+Param[2]
+^^^^^^^^
+
+peak bitrate in bits per second, divided by 400
+
+Param[3]
+^^^^^^^^
+
+Mux bitrate in bits per second, divided by 400. May be 0 (default).
+
+Param[4]
+^^^^^^^^
+
+Rate Control VBR Padding
+
+Param[5]
+^^^^^^^^
+
+VBV Buffer used by encoder
+
+.. note::
+
+	#) Param\[3\] and Param\[4\] seem to be always 0
+	#) Param\[5\] doesn't seem to be used.
+
+
+
+CX2341X_ENC_SET_GOP_PROPERTIES
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 151/0x97
+
+Description
+^^^^^^^^^^^
+
+Setup the GOP structure
+
+Param[0]
+^^^^^^^^
+
+GOP size (maximum is 34)
+
+Param[1]
+^^^^^^^^
+
+Number of B frames between the I and P frame, plus 1.
+For example: IBBPBBPBBPBB --> GOP size: 12, number of B frames: 2+1 = 3
+
+.. note::
+
+	GOP size must be a multiple of (B-frames + 1).
+
+
+
+CX2341X_ENC_SET_ASPECT_RATIO
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 153/0x99
+
+Description
+^^^^^^^^^^^
+
+Sets the encoding aspect ratio. Changes in the aspect ratio take effect
+at the start of the next GOP.
+
+Param[0]
+^^^^^^^^
+
+- '0000' forbidden
+- '0001' 1:1 square
+- '0010' 4:3
+- '0011' 16:9
+- '0100' 2.21:1
+- '0101' to '1111' reserved
+
+
+
+CX2341X_ENC_SET_DNR_FILTER_MODE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 155/0x9B
+
+Description
+^^^^^^^^^^^
+
+Assign Dynamic Noise Reduction operating mode
+
+Param[0]
+^^^^^^^^
+
+Bit0: Spatial filter, set=auto, clear=manual
+Bit1: Temporal filter, set=auto, clear=manual
+
+Param[1]
+^^^^^^^^
+
+Median filter:
+
+- 0=Disabled
+- 1=Horizontal
+- 2=Vertical
+- 3=Horiz/Vert
+- 4=Diagonal
+
+
+
+CX2341X_ENC_SET_DNR_FILTER_PROPS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 157/0x9D
+
+Description
+^^^^^^^^^^^
+
+These Dynamic Noise Reduction filter values are only meaningful when
+the respective filter is set to "manual" (See API 0x9B)
+
+Param[0]
+^^^^^^^^
+
+Spatial filter: default 0, range 0:15
+
+Param[1]
+^^^^^^^^
+
+Temporal filter: default 0, range 0:31
+
+
+
+CX2341X_ENC_SET_CORING_LEVELS
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 159/0x9F
+
+Description
+^^^^^^^^^^^
+
+Assign Dynamic Noise Reduction median filter properties.
+
+Param[0]
+^^^^^^^^
+
+Threshold above which the luminance median filter is enabled.
+Default: 0, range 0:255
+
+Param[1]
+^^^^^^^^
+
+Threshold below which the luminance median filter is enabled.
+Default: 255, range 0:255
+
+Param[2]
+^^^^^^^^
+
+Threshold above which the chrominance median filter is enabled.
+Default: 0, range 0:255
+
+Param[3]
+^^^^^^^^
+
+Threshold below which the chrominance median filter is enabled.
+Default: 255, range 0:255
+
+
+
+CX2341X_ENC_SET_SPATIAL_FILTER_TYPE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 161/0xA1
+
+Description
+^^^^^^^^^^^
+
+Assign spatial prefilter parameters
+
+Param[0]
+^^^^^^^^
+
+Luminance filter
+
+- 0=Off
+- 1=1D Horizontal
+- 2=1D Vertical
+- 3=2D H/V Separable (default)
+- 4=2D Symmetric non-separable
+
+Param[1]
+^^^^^^^^
+
+Chrominance filter
+
+- 0=Off
+- 1=1D Horizontal (default)
+
+
+
+CX2341X_ENC_SET_VBI_LINE
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 183/0xB7
+
+Description
+^^^^^^^^^^^
+
+Selects VBI line number.
+
+Param[0]
+^^^^^^^^
+
+- Bits 0:4 	line number
+- Bit  31		0=top_field, 1=bottom_field
+- Bits 0:31 	all set specifies "all lines"
+
+Param[1]
+^^^^^^^^
+
+VBI line information features: 0=disabled, 1=enabled
+
+Param[2]
+^^^^^^^^
+
+Slicing: 0=None, 1=Closed Caption
+Almost certainly not implemented. Set to 0.
+
+Param[3]
+^^^^^^^^
+
+Luminance samples in this line.
+Almost certainly not implemented. Set to 0.
+
+Param[4]
+^^^^^^^^
+
+Chrominance samples in this line
+Almost certainly not implemented. Set to 0.
+
+
+
+CX2341X_ENC_SET_STREAM_TYPE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 185/0xB9
+
+Description
+^^^^^^^^^^^
+
+Assign stream type
+
+.. note::
+
+	Transport stream is not working in recent firmwares.
+	And in older firmwares the timestamps in the TS seem to be
+	unreliable.
+
+Param[0]
+^^^^^^^^
+
+- 0=Program stream
+- 1=Transport stream
+- 2=MPEG1 stream
+- 3=PES A/V stream
+- 5=PES Video stream
+- 7=PES Audio stream
+- 10=DVD stream
+- 11=VCD stream
+- 12=SVCD stream
+- 13=DVD_S1 stream
+- 14=DVD_S2 stream
+
+
+
+CX2341X_ENC_SET_OUTPUT_PORT
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 187/0xBB
+
+Description
+^^^^^^^^^^^
+
+Assign stream output port. Normally 0 when the data is copied through
+the PCI bus (DMA), and 1 when the data is streamed to another chip
+(pvrusb and cx88-blackbird).
+
+Param[0]
+^^^^^^^^
+
+- 0=Memory (default)
+- 1=Streaming
+- 2=Serial
+
+Param[1]
+^^^^^^^^
+
+Unknown, but leaving this to 0 seems to work best. Indications are that
+this might have to do with USB support, although passing anything but 0
+only breaks things.
+
+
+
+CX2341X_ENC_SET_AUDIO_PROPERTIES
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 189/0xBD
+
+Description
+^^^^^^^^^^^
+
+Set audio stream properties, may be called while encoding is in progress.
+
+.. note::
+
+	All bitfields are consistent with ISO11172 documentation except
+	bits 2:3 which ISO docs define as:
+
+	- '11' Layer I
+	- '10' Layer II
+	- '01' Layer III
+	- '00' Undefined
+
+	This discrepancy may indicate a possible error in the documentation.
+	Testing indicated that only Layer II is actually working, and that
+	the minimum bitrate should be 192 kbps.
+
+Param[0]
+^^^^^^^^
+
+Bitmask:
+
+.. code-block:: none
+
+	   0:1  '00' 44.1Khz
+		'01' 48Khz
+		'10' 32Khz
+		'11' reserved
+
+	   2:3  '01'=Layer I
+		'10'=Layer II
+
+	   4:7  Bitrate:
+		     Index | Layer I     | Layer II
+		     ------+-------------+------------
+		    '0000' | free format | free format
+		    '0001' |  32 kbit/s  |  32 kbit/s
+		    '0010' |  64 kbit/s  |  48 kbit/s
+		    '0011' |  96 kbit/s  |  56 kbit/s
+		    '0100' | 128 kbit/s  |  64 kbit/s
+		    '0101' | 160 kbit/s  |  80 kbit/s
+		    '0110' | 192 kbit/s  |  96 kbit/s
+		    '0111' | 224 kbit/s  | 112 kbit/s
+		    '1000' | 256 kbit/s  | 128 kbit/s
+		    '1001' | 288 kbit/s  | 160 kbit/s
+		    '1010' | 320 kbit/s  | 192 kbit/s
+		    '1011' | 352 kbit/s  | 224 kbit/s
+		    '1100' | 384 kbit/s  | 256 kbit/s
+		    '1101' | 416 kbit/s  | 320 kbit/s
+		    '1110' | 448 kbit/s  | 384 kbit/s
+
+		.. note::
+
+			For Layer II, not all combinations of total bitrate
+			and mode are allowed. See ISO11172-3 3-Annex B,
+			Table 3-B.2
+
+	   8:9  '00'=Stereo
+		'01'=JointStereo
+		'10'=Dual
+		'11'=Mono
+
+		.. note::
+
+			The cx23415 cannot decode Joint Stereo properly.
+
+	  10:11 Mode Extension used in joint_stereo mode.
+		In Layer I and II they indicate which subbands are in
+		intensity_stereo. All other subbands are coded in stereo.
+		    '00' subbands 4-31 in intensity_stereo, bound==4
+		    '01' subbands 8-31 in intensity_stereo, bound==8
+		    '10' subbands 12-31 in intensity_stereo, bound==12
+		    '11' subbands 16-31 in intensity_stereo, bound==16
+
+	  12:13 Emphasis:
+		    '00' None
+		    '01' 50/15uS
+		    '10' reserved
+		    '11' CCITT J.17
+
+	  14 	CRC:
+		    '0' off
+		    '1' on
+
+	  15    Copyright:
+		    '0' off
+		    '1' on
+
+	  16    Generation:
+		    '0' copy
+		    '1' original
+
+
+
+CX2341X_ENC_HALT_FW
+~~~~~~~~~~~~~~~~~~~
+
+Enum: 195/0xC3
+
+Description
+^^^^^^^^^^^
+
+The firmware is halted and no further API calls are serviced until the
+firmware is uploaded again.
+
+
+
+CX2341X_ENC_GET_VERSION
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 196/0xC4
+
+Description
+^^^^^^^^^^^
+
+Returns the version of the encoder firmware.
+
+Result[0]
+^^^^^^^^^
+
+Version bitmask:
+- Bits  0:15 build
+- Bits 16:23 minor
+- Bits 24:31 major
+
+
+
+CX2341X_ENC_SET_GOP_CLOSURE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 197/0xC5
+
+Description
+^^^^^^^^^^^
+
+Assigns the GOP open/close property.
+
+Param[0]
+^^^^^^^^
+
+- 0=Open
+- 1=Closed
+
+
+
+CX2341X_ENC_GET_SEQ_END
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 198/0xC6
+
+Description
+^^^^^^^^^^^
+
+Obtains the sequence end code of the encoder's buffer. When a capture
+is started a number of interrupts are still generated, the last of
+which will have Result[0] set to 1 and Result[1] will contain the size
+of the buffer.
+
+Result[0]
+^^^^^^^^^
+
+State of the transfer (1 if last buffer)
+
+Result[1]
+^^^^^^^^^
+
+If Result[0] is 1, this contains the size of the last buffer, undefined
+otherwise.
+
+
+
+CX2341X_ENC_SET_PGM_INDEX_INFO
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 199/0xC7
+
+Description
+^^^^^^^^^^^
+
+Sets the Program Index Information.
+The information is stored as follows:
+
+.. code-block:: c
+
+	struct info {
+		u32 length;		// Length of this frame
+		u32 offset_low;		// Offset in the file of the
+		u32 offset_high;	// start of this frame
+		u32 mask1;		// Bits 0-2 are the type mask:
+					// 1=I, 2=P, 4=B
+					// 0=End of Program Index, other fields
+					//   are invalid.
+		u32 pts;		// The PTS of the frame
+		u32 mask2;		// Bit 0 is bit 32 of the pts.
+	};
+	u32 table_ptr;
+	struct info index[400];
+
+The table_ptr is the encoder memory address in the table were
+*new* entries will be written.
+
+.. note:: This is a ringbuffer, so the table_ptr will wraparound.
+
+Param[0]
+^^^^^^^^
+
+Picture Mask:
+- 0=No index capture
+- 1=I frames
+- 3=I,P frames
+- 7=I,P,B frames
+
+(Seems to be ignored, it always indexes I, P and B frames)
+
+Param[1]
+^^^^^^^^
+
+Elements requested (up to 400)
+
+Result[0]
+^^^^^^^^^
+
+Offset in the encoder memory of the start of the table.
+
+Result[1]
+^^^^^^^^^
+
+Number of allocated elements up to a maximum of Param[1]
+
+
+
+CX2341X_ENC_SET_VBI_CONFIG
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 200/0xC8
+
+Description
+^^^^^^^^^^^
+
+Configure VBI settings
+
+Param[0]
+^^^^^^^^
+
+Bitmap:
+
+.. code-block:: none
+
+	    0    Mode '0' Sliced, '1' Raw
+	    1:3  Insertion:
+		     '000' insert in extension & user data
+		     '001' insert in private packets
+		     '010' separate stream and user data
+		     '111' separate stream and private data
+	    8:15 Stream ID (normally 0xBD)
+
+Param[1]
+^^^^^^^^
+
+Frames per interrupt (max 8). Only valid in raw mode.
+
+Param[2]
+^^^^^^^^
+
+Total raw VBI frames. Only valid in raw mode.
+
+Param[3]
+^^^^^^^^
+
+Start codes
+
+Param[4]
+^^^^^^^^
+
+Stop codes
+
+Param[5]
+^^^^^^^^
+
+Lines per frame
+
+Param[6]
+^^^^^^^^
+
+Byte per line
+
+Result[0]
+^^^^^^^^^
+
+Observed frames per interrupt in raw mode only. Rage 1 to Param[1]
+
+Result[1]
+^^^^^^^^^
+
+Observed number of frames in raw mode. Range 1 to Param[2]
+
+Result[2]
+^^^^^^^^^
+
+Memory offset to start or raw VBI data
+
+
+
+CX2341X_ENC_SET_DMA_BLOCK_SIZE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 201/0xC9
+
+Description
+^^^^^^^^^^^
+
+Set DMA transfer block size
+
+Param[0]
+^^^^^^^^
+
+DMA transfer block size in bytes or frames. When unit is bytes,
+supported block sizes are 2^7, 2^8 and 2^9 bytes.
+
+Param[1]
+^^^^^^^^
+
+Unit: 0=bytes, 1=frames
+
+
+
+CX2341X_ENC_GET_PREV_DMA_INFO_MB_10
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 202/0xCA
+
+Description
+^^^^^^^^^^^
+
+Returns information on the previous DMA transfer in conjunction with
+bit 27 of the interrupt mask. Uses mailbox 10.
+
+Result[0]
+^^^^^^^^^
+
+Type of stream
+
+Result[1]
+^^^^^^^^^
+
+Address Offset
+
+Result[2]
+^^^^^^^^^
+
+Maximum size of transfer
+
+
+
+CX2341X_ENC_GET_PREV_DMA_INFO_MB_9
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 203/0xCB
+
+Description
+^^^^^^^^^^^
+
+Returns information on the previous DMA transfer in conjunction with
+bit 27 or 18 of the interrupt mask. Uses mailbox 9.
+
+Result[0]
+^^^^^^^^^
+
+Status bits:
+- 0   read completed
+- 1   write completed
+- 2   DMA read error
+- 3   DMA write error
+- 4   Scatter-Gather array error
+
+Result[1]
+^^^^^^^^^
+
+DMA type
+
+Result[2]
+^^^^^^^^^
+
+Presentation Time Stamp bits 0..31
+
+Result[3]
+^^^^^^^^^
+
+Presentation Time Stamp bit 32
+
+
+
+CX2341X_ENC_SCHED_DMA_TO_HOST
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 204/0xCC
+
+Description
+^^^^^^^^^^^
+
+Setup DMA to host operation
+
+Param[0]
+^^^^^^^^
+
+Memory address of link list
+
+Param[1]
+^^^^^^^^
+
+Length of link list (wtf: what units ???)
+
+Param[2]
+^^^^^^^^
+
+DMA type (0=MPEG)
+
+
+
+CX2341X_ENC_INITIALIZE_INPUT
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 205/0xCD
+
+Description
+^^^^^^^^^^^
+
+Initializes the video input
+
+
+
+CX2341X_ENC_SET_FRAME_DROP_RATE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 208/0xD0
+
+Description
+^^^^^^^^^^^
+
+For each frame captured, skip specified number of frames.
+
+Param[0]
+^^^^^^^^
+
+Number of frames to skip
+
+
+
+CX2341X_ENC_PAUSE_ENCODER
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 210/0xD2
+
+Description
+^^^^^^^^^^^
+
+During a pause condition, all frames are dropped instead of being encoded.
+
+Param[0]
+^^^^^^^^
+
+- 0=Pause encoding
+- 1=Continue encoding
+
+
+
+CX2341X_ENC_REFRESH_INPUT
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 211/0xD3
+
+Description
+^^^^^^^^^^^
+
+Refreshes the video input
+
+
+
+CX2341X_ENC_SET_COPYRIGHT
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 212/0xD4
+
+Description
+^^^^^^^^^^^
+
+Sets stream copyright property
+
+Param[0]
+^^^^^^^^
+
+
+- 0=Stream is not copyrighted
+- 1=Stream is copyrighted
+
+
+
+CX2341X_ENC_SET_EVENT_NOTIFICATION
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 213/0xD5
+
+Description
+^^^^^^^^^^^
+
+Setup firmware to notify the host about a particular event. Host must
+unmask the interrupt bit.
+
+Param[0]
+^^^^^^^^
+
+Event (0=refresh encoder input)
+
+Param[1]
+^^^^^^^^
+
+Notification 0=disabled 1=enabled
+
+Param[2]
+^^^^^^^^
+
+Interrupt bit
+
+Param[3]
+^^^^^^^^
+
+Mailbox slot, -1 if no mailbox required.
+
+
+
+CX2341X_ENC_SET_NUM_VSYNC_LINES
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 214/0xD6
+
+Description
+^^^^^^^^^^^
+
+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
+
+
+
+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
+
+
+
+CX2341X_ENC_MUTE_VIDEO
+~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 217/0xD9
+
+Description
+^^^^^^^^^^^
+
+Video muting
+
+Param[0]
+^^^^^^^^
+
+Bit usage:
+
+.. code-block:: none
+
+	 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
+
+
+
+CX2341X_ENC_MUTE_AUDIO
+~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 218/0xDA
+
+Description
+^^^^^^^^^^^
+
+Audio muting
+
+Param[0]
+^^^^^^^^
+
+- 0=audio not muted
+- 1=audio muted (produces silent mpeg audio stream)
+
+
+
+CX2341X_ENC_SET_VERT_CROP_LINE
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Enum: 219/0xDB
+
+Description
+^^^^^^^^^^^
+
+Something to do with 'Vertical Crop Line'
+
+Param[0]
+^^^^^^^^
+
+If saa7114 and raw VBI capture and 60 Hz, then set to 10001.
+Else 0.
+
+
+
+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:
+
+.. code-block:: none
+
+	 1=set initial SCR value when starting encoding (works).
+	 2=set quality mode (apparently some test setting).
+	 3=setup advanced VIM protection handling.
+	   Always 1 for the cx23416 and 0 for cx23415.
+	 4=generate DVD compatible PTS timestamps
+	 5=USB flush mode
+	 6=something to do with the quantization matrix
+	 7=set navigation pack insertion for DVD: adds 0xbf (private stream 2)
+	   packets to the MPEG. The size of these packets is 2048 bytes (including
+	   the header of 6 bytes: 0x000001bf + length). The payload is zeroed and
+	   it is up to the application to fill them in. These packets are apparently
+	   inserted every four frames.
+	 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 after channel change or input switch (has no argument).
+	   Needed for the cx2584x, not needed for the mspx4xx, but it doesn't seem to
+	   do any harm calling it regardless.
+	13=set audio volume delay
+	14=set audio delay
+
+
+Param[1]
+^^^^^^^^
+
+Command value.
+
 Decoder firmware API description
 --------------------------------
 

Documentation/video4linux/cx2341x/fw-encoder-api.txt

-Encoder firmware API description
-================================
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_PING_FW
-Enum 	128/0x80
-Description
-	Does nothing. Can be used to check if the firmware is responding.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_START_CAPTURE
-Enum 	129/0x81
-Description
-	Commences the capture of video, audio and/or VBI data. All encoding
-	parameters must be initialized prior to this API call. Captures frames
-	continuously or until a predefined number of frames have been captured.
-Param[0]
-	Capture stream type:
-	    0=MPEG
-	    1=Raw
-	    2=Raw passthrough
-	    3=VBI
-
-Param[1]
-	Bitmask:
-	    Bit 0 when set, captures YUV
-	    Bit 1 when set, captures PCM audio
-	    Bit 2 when set, captures VBI (same as param[0]=3)
-	    Bit 3 when set, the capture destination is the decoder
-		(same as param[0]=2)
-	    Bit 4 when set, the capture destination is the host
-	Note: this parameter is only meaningful for RAW capture type.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_STOP_CAPTURE
-Enum 	130/0x82
-Description
-	Ends a capture in progress
-Param[0]
-	0=stop at end of GOP (generates IRQ)
-	1=stop immediate (no IRQ)
-Param[1]
-	Stream type to stop, see param[0] of API 0x81
-Param[2]
-	Subtype, see param[1] of API 0x81
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_AUDIO_ID
-Enum 	137/0x89
-Description
-	Assigns the transport stream ID of the encoded audio stream
-Param[0]
-	Audio Stream ID
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_VIDEO_ID
-Enum 	139/0x8B
-Description
-	Set video transport stream ID
-Param[0]
-	Video stream ID
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_PCR_ID
-Enum 	141/0x8D
-Description
-	Assigns the transport stream ID for PCR packets
-Param[0]
-	PCR Stream ID
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_FRAME_RATE
-Enum 	143/0x8F
-Description
-	Set video frames per second. Change occurs at start of new GOP.
-Param[0]
-	0=30fps
-	1=25fps
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_FRAME_SIZE
-Enum 	145/0x91
-Description
-	Select video stream encoding resolution.
-Param[0]
-	Height in lines. Default 480
-Param[1]
-	Width in pixels. Default 720
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_BIT_RATE
-Enum 	149/0x95
-Description
-	Assign average video stream bitrate. Note on the last three params:
-	Param[3] and [4] seem to be always 0, param [5] doesn't seem to be used.
-Param[0]
-	0=variable bitrate, 1=constant bitrate
-Param[1]
-	bitrate in bits per second
-Param[2]
-	peak bitrate in bits per second, divided by 400
-Param[3]
-	Mux bitrate in bits per second, divided by 400. May be 0 (default).
-Param[4]
-	Rate Control VBR Padding
-Param[5]
-	VBV Buffer used by encoder
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_GOP_PROPERTIES
-Enum 	151/0x97
-Description
-	Setup the GOP structure
-Param[0]
-	GOP size (maximum is 34)
-Param[1]
-	Number of B frames between the I and P frame, plus 1.
-	For example: IBBPBBPBBPBB --> GOP size: 12, number of B frames: 2+1 = 3
-	Note that GOP size must be a multiple of (B-frames + 1).
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_ASPECT_RATIO
-Enum 	153/0x99
-Description
-	Sets the encoding aspect ratio. Changes in the aspect ratio take effect
-	at the start of the next GOP.
-Param[0]
-	'0000' forbidden
-	'0001' 1:1 square
-	'0010' 4:3
-	'0011' 16:9
-	'0100' 2.21:1
-	'0101' reserved
-	 ....
-	'1111' reserved
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_DNR_FILTER_MODE
-Enum 	155/0x9B
-Description
-	Assign Dynamic Noise Reduction operating mode
-Param[0]
-	Bit0: Spatial filter, set=auto, clear=manual
-	Bit1: Temporal filter, set=auto, clear=manual
-Param[1]
-	Median filter:
-	    0=Disabled
-	    1=Horizontal
-	    2=Vertical
-	    3=Horiz/Vert
-	    4=Diagonal
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_DNR_FILTER_PROPS
-Enum 	157/0x9D
-Description
-	These Dynamic Noise Reduction filter values are only meaningful when
-	the respective filter is set to "manual" (See API 0x9B)
-Param[0]
-	Spatial filter: default 0, range 0:15
-Param[1]
-	Temporal filter: default 0, range 0:31
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_CORING_LEVELS
-Enum 	159/0x9F
-Description
-	Assign Dynamic Noise Reduction median filter properties.
-Param[0]
-	Threshold above which the luminance median filter is enabled.
-	Default: 0, range 0:255
-Param[1]
-	Threshold below which the luminance median filter is enabled.
-	Default: 255, range 0:255
-Param[2]
-	Threshold above which the chrominance median filter is enabled.
-	Default: 0, range 0:255
-Param[3]
-	Threshold below which the chrominance median filter is enabled.
-	Default: 255, range 0:255
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_SPATIAL_FILTER_TYPE
-Enum 	161/0xA1
-Description
-	Assign spatial prefilter parameters
-Param[0]
-	Luminance filter
-	    0=Off
-	    1=1D Horizontal
-	    2=1D Vertical
-	    3=2D H/V Separable (default)
-	    4=2D Symmetric non-separable
-Param[1]
-	Chrominance filter
-	    0=Off
-	    1=1D Horizontal (default)
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_VBI_LINE
-Enum 	183/0xB7
-Description
-	Selects VBI line number.
-Param[0]
-	Bits 0:4 	line number
-	Bit  31		0=top_field, 1=bottom_field
-	Bits 0:31 	all set specifies "all lines"
-Param[1]
-	VBI line information features: 0=disabled, 1=enabled
-Param[2]
-	Slicing: 0=None, 1=Closed Caption
-	Almost certainly not implemented. Set to 0.
-Param[3]
-	Luminance samples in this line.
-	Almost certainly not implemented. Set to 0.
-Param[4]
-	Chrominance samples in this line
-	Almost certainly not implemented. Set to 0.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_STREAM_TYPE
-Enum 	185/0xB9
-Description
-	Assign stream type
-	Note: Transport stream is not working in recent firmwares.
-	And in older firmwares the timestamps in the TS seem to be
-	unreliable.
-Param[0]
-	 0=Program stream
-	 1=Transport stream
-	 2=MPEG1 stream
-	 3=PES A/V stream
-	 5=PES Video stream
-	 7=PES Audio stream
-	10=DVD stream
-	11=VCD stream
-	12=SVCD stream
-	13=DVD_S1 stream
-	14=DVD_S2 stream
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_OUTPUT_PORT
-Enum 	187/0xBB
-Description
-	Assign stream output port. Normally 0 when the data is copied through
-	the PCI bus (DMA), and 1 when the data is streamed to another chip
-	(pvrusb and cx88-blackbird).
-Param[0]
-	0=Memory (default)
-	1=Streaming
-	2=Serial
-Param[1]
-	Unknown, but leaving this to 0 seems to work best. Indications are that
-	this might have to do with USB support, although passing anything but 0
-	only breaks things.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_AUDIO_PROPERTIES
-Enum 	189/0xBD
-Description
-	Set audio stream properties, may be called while encoding is in progress.
-	Note: all bitfields are consistent with ISO11172 documentation except
-	bits 2:3 which ISO docs define as:
-		'11' Layer I
-		'10' Layer II
-		'01' Layer III
-		'00' Undefined
-	This discrepancy may indicate a possible error in the documentation.
-	Testing indicated that only Layer II is actually working, and that
-	the minimum bitrate should be 192 kbps.
-Param[0]
-	Bitmask:
-	   0:1  '00' 44.1Khz
-		'01' 48Khz
-		'10' 32Khz
-		'11' reserved
-
-	   2:3  '01'=Layer I
-		'10'=Layer II
-
-	   4:7  Bitrate:
-		     Index | Layer I     | Layer II
-		     ------+-------------+------------
-		    '0000' | free format | free format
-		    '0001' |  32 kbit/s  |  32 kbit/s
-		    '0010' |  64 kbit/s  |  48 kbit/s
-		    '0011' |  96 kbit/s  |  56 kbit/s
-		    '0100' | 128 kbit/s  |  64 kbit/s
-		    '0101' | 160 kbit/s  |  80 kbit/s
-		    '0110' | 192 kbit/s  |  96 kbit/s
-		    '0111' | 224 kbit/s  | 112 kbit/s
-		    '1000' | 256 kbit/s  | 128 kbit/s
-		    '1001' | 288 kbit/s  | 160 kbit/s
-		    '1010' | 320 kbit/s  | 192 kbit/s
-		    '1011' | 352 kbit/s  | 224 kbit/s
-		    '1100' | 384 kbit/s  | 256 kbit/s
-		    '1101' | 416 kbit/s  | 320 kbit/s
-		    '1110' | 448 kbit/s  | 384 kbit/s
-		Note: For Layer II, not all combinations of total bitrate
-		and mode are allowed. See ISO11172-3 3-Annex B, Table 3-B.2
-
-	   8:9  '00'=Stereo
-		'01'=JointStereo
-		'10'=Dual
-		'11'=Mono
-		Note: the cx23415 cannot decode Joint Stereo properly.
-
-	  10:11 Mode Extension used in joint_stereo mode.
-		In Layer I and II they indicate which subbands are in
-		intensity_stereo. All other subbands are coded in stereo.
-		    '00' subbands 4-31 in intensity_stereo, bound==4
-		    '01' subbands 8-31 in intensity_stereo, bound==8
-		    '10' subbands 12-31 in intensity_stereo, bound==12
-		    '11' subbands 16-31 in intensity_stereo, bound==16
-
-	  12:13 Emphasis:
-		    '00' None
-		    '01' 50/15uS
-		    '10' reserved
-		    '11' CCITT J.17
-
-	  14 	CRC:
-		    '0' off
-		    '1' on
-
-	  15    Copyright:
-		    '0' off
-		    '1' on
-
-	  16    Generation:
-		    '0' copy
-		    '1' original
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_HALT_FW
-Enum 	195/0xC3
-Description
-	The firmware is halted and no further API calls are serviced until the
-	firmware is uploaded again.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_GET_VERSION
-Enum 	196/0xC4
-Description
-	Returns the version of the encoder firmware.
-Result[0]
-	Version bitmask:
-	    Bits  0:15 build
-	    Bits 16:23 minor
-	    Bits 24:31 major
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_GOP_CLOSURE
-Enum 	197/0xC5
-Description
-	Assigns the GOP open/close property.
-Param[0]
-	0=Open
-	1=Closed
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_GET_SEQ_END
-Enum 	198/0xC6
-Description
-	Obtains the sequence end code of the encoder's buffer. When a capture
-	is started a number of interrupts are still generated, the last of
-	which will have Result[0] set to 1 and Result[1] will contain the size
-	of the buffer.
-Result[0]
-	State of the transfer (1 if last buffer)
-Result[1]
-	If Result[0] is 1, this contains the size of the last buffer, undefined
-	otherwise.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_PGM_INDEX_INFO
-Enum 	199/0xC7
-Description
-	Sets the Program Index Information.
-	The information is stored as follows:
-
-	struct info {
-		u32 length;		// Length of this frame
-		u32 offset_low;		// Offset in the file of the
-		u32 offset_high;	// start of this frame
-		u32 mask1;		// Bits 0-2 are the type mask:
-					// 1=I, 2=P, 4=B
-					// 0=End of Program Index, other fields
-					//   are invalid.
-		u32 pts;		// The PTS of the frame
-		u32 mask2;		// Bit 0 is bit 32 of the pts.
-	};
-	u32 table_ptr;
-	struct info index[400];
-
-	The table_ptr is the encoder memory address in the table were
-	*new* entries will be written. Note that this is a ringbuffer,
-	so the table_ptr will wraparound.
-Param[0]
-	Picture Mask:
-	    0=No index capture
-	    1=I frames
-	    3=I,P frames
-	    7=I,P,B frames
-	(Seems to be ignored, it always indexes I, P and B frames)
-Param[1]
-	Elements requested (up to 400)
-Result[0]
-	Offset in the encoder memory of the start of the table.
-Result[1]
-	Number of allocated elements up to a maximum of Param[1]
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_VBI_CONFIG
-Enum 	200/0xC8
-Description
-	Configure VBI settings
-Param[0]
-	Bitmap:
-	    0    Mode '0' Sliced, '1' Raw
-	    1:3  Insertion:
-		     '000' insert in extension & user data
-		     '001' insert in private packets
-		     '010' separate stream and user data
-		     '111' separate stream and private data
-	    8:15 Stream ID (normally 0xBD)
-Param[1]
-	Frames per interrupt (max 8). Only valid in raw mode.
-Param[2]
-	Total raw VBI frames. Only valid in raw mode.
-Param[3]
-	Start codes
-Param[4]
-	Stop codes
-Param[5]
-	Lines per frame
-Param[6]
-	Byte per line
-Result[0]
-	Observed frames per interrupt in raw mode only. Rage 1 to Param[1]
-Result[1]
-	Observed number of frames in raw mode. Range 1 to Param[2]
-Result[2]
-	Memory offset to start or raw VBI data
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_DMA_BLOCK_SIZE
-Enum 	201/0xC9
-Description
-	Set DMA transfer block size
-Param[0]
-	DMA transfer block size in bytes or frames. When unit is bytes,
-	supported block sizes are 2^7, 2^8 and 2^9 bytes.
-Param[1]
-	Unit: 0=bytes, 1=frames
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_GET_PREV_DMA_INFO_MB_10
-Enum 	202/0xCA
-Description
-	Returns information on the previous DMA transfer in conjunction with
-	bit 27 of the interrupt mask. Uses mailbox 10.
-Result[0]
-	Type of stream
-Result[1]
-	Address Offset
-Result[2]
-	Maximum size of transfer
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_GET_PREV_DMA_INFO_MB_9
-Enum 	203/0xCB
-Description
-	Returns information on the previous DMA transfer in conjunction with
-	bit 27 or 18 of the interrupt mask. Uses mailbox 9.
-Result[0]
-	Status bits:
-		0   read completed
-		1   write completed
-		2   DMA read error
-		3   DMA write error
-		4   Scatter-Gather array error
-Result[1]
-	DMA type
-Result[2]
-	Presentation Time Stamp bits 0..31
-Result[3]
-	Presentation Time Stamp bit 32
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SCHED_DMA_TO_HOST
-Enum 	204/0xCC
-Description
-	Setup DMA to host operation
-Param[0]
-	Memory address of link list
-Param[1]
-	Length of link list (wtf: what units ???)
-Param[2]
-	DMA type (0=MPEG)
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_INITIALIZE_INPUT
-Enum 	205/0xCD
-Description
-	Initializes the video input
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_FRAME_DROP_RATE
-Enum 	208/0xD0
-Description
-	For each frame captured, skip specified number of frames.
-Param[0]
-	Number of frames to skip
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_PAUSE_ENCODER
-Enum 	210/0xD2
-Description
-	During a pause condition, all frames are dropped instead of being encoded.
-Param[0]
-	0=Pause encoding
-	1=Continue encoding
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_REFRESH_INPUT
-Enum 	211/0xD3
-Description
-	Refreshes the video input
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_COPYRIGHT
-Enum 	212/0xD4
-Description
-	Sets stream copyright property
-Param[0]
-	0=Stream is not copyrighted
-	1=Stream is copyrighted
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_EVENT_NOTIFICATION
-Enum 	213/0xD5
-Description
-	Setup firmware to notify the host about a particular event. Host must
-	unmask the interrupt bit.
-Param[0]
-	Event (0=refresh encoder input)
-Param[1]
-	Notification 0=disabled 1=enabled
-Param[2]
-	Interrupt bit
-Param[3]
-	Mailbox slot, -1 if no mailbox required.
-
--------------------------------------------------------------------------------
-
-Name 	CX2341X_ENC_SET_NUM_VSYNC_LINES
-Enum 	214/0xD6
-Description
-	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_SET_VERT_CROP_LINE
-Enum 	219/0xDB
-Description
-	Something to do with 'Vertical Crop Line'
-Param[0]
-	If saa7114 and raw VBI capture and 60 Hz, then set to 10001.
-	Else 0.
-
--------------------------------------------------------------------------------
-
-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 (works).
-	 2=set quality mode (apparently some test setting).
-	 3=setup advanced VIM protection handling.
-	   Always 1 for the cx23416 and 0 for cx23415.
-	 4=generate DVD compatible PTS timestamps
-	 5=USB flush mode
-	 6=something to do with the quantization matrix
-	 7=set navigation pack insertion for DVD: adds 0xbf (private stream 2)
-	   packets to the MPEG. The size of these packets is 2048 bytes (including
-	   the header of 6 bytes: 0x000001bf + length). The payload is zeroed and
-	   it is up to the application to fill them in. These packets are apparently
-	   inserted every four frames.
-	 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 after channel change or input switch (has no argument).
-	   Needed for the cx2584x, not needed for the mspx4xx, but it doesn't seem to
-	   do any harm calling it regardless.
-	13=set audio volume delay
-	14=set audio delay
-
-Param[1]
-	Command value.