Source code of Windows XP (NT5)
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/*++
Copyright (c) 1994 - 1995 Microsoft Corporation. All Rights Reserved.
Module Name:
mpeg.h
Abstract:
These are the structures and defines that are used in the MPEG port driver.
Author:
Paul Shih (paulsh) 27-Mar-1994
Revision History:
--*/#ifndef _DDMPEG_H
#define _DDMPEG_H
#include "mpegcmn.h"
//
// Define the various device type values. Note that values used by Microsoft
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
// by customers.
//
#define FILE_DEVICE_MPEG_OVERLAY 0x00008200U
#define FILE_DEVICE_MPEG_VIDEO 0x00008300U
#define FILE_DEVICE_MPEG_AUDIO 0x00008600U
//
// Macro definition for defining IOCTL and FSCTL function control codes. Note
// that function codes 0-2047 are reserved for Microsoft Corporation, and
// 2048-4095 are reserved for customers.
//
#define MPEG_OVERLAY_IOCTL_BASE 0x820U
#define MPEG_VIDEO_IOCTL_BASE 0x830U
#define MPEG_AUDIO_IOCTL_BASE 0x860U
//
// Defines used in simplifying actual declarations of device IOCTL values below
//
#define CTL_CODE_MPEG_AUDIO(offset) CTL_CODE(FILE_DEVICE_MPEG_AUDIO, \
MPEG_AUDIO_IOCTL_BASE + offset, \ METHOD_BUFFERED, \ FILE_ANY_ACCESS)
#define CTL_CODE_MPEG_VIDEO(offset) CTL_CODE(FILE_DEVICE_MPEG_VIDEO, \
MPEG_VIDEO_IOCTL_BASE + offset, \ METHOD_BUFFERED, \ FILE_ANY_ACCESS)
#define CTL_CODE_MPEG_OVERLAY(offset) CTL_CODE(FILE_DEVICE_MPEG_OVERLAY, \
MPEG_OVERLAY_IOCTL_BASE + offset, \ METHOD_BUFFERED, \ FILE_ANY_ACCESS)
//****************************************************************************
// MPEG_AUDIO device IOCTLs
//****************************************************************************
// Input: None
// Output: None
#define IOCTL_MPEG_AUDIO_RESET CTL_CODE_MPEG_AUDIO(0)
// Input: None
// Output: MPEG_TIME_STAMP
#define IOCTL_MPEG_AUDIO_GET_STC CTL_CODE_MPEG_AUDIO(1)
// Input: MPEG_TIME_STAMP
// Output: None
#define IOCTL_MPEG_AUDIO_SET_STC CTL_CODE_MPEG_AUDIO(2)
// Input: None
// Output: None
#define IOCTL_MPEG_AUDIO_PLAY CTL_CODE_MPEG_AUDIO(3)
// Input: None
// Output: None
#define IOCTL_MPEG_AUDIO_PAUSE CTL_CODE_MPEG_AUDIO(4)
// Input: None
// Output: None
#define IOCTL_MPEG_AUDIO_STOP CTL_CODE_MPEG_AUDIO(5)
// Input: None
// Output: MPEG_AUDIO_DEVICE_INFO
#define IOCTL_MPEG_AUDIO_QUERY_DEVICE CTL_CODE_MPEG_AUDIO(6)
// Input: None
// Output: None
#define IOCTL_MPEG_AUDIO_END_OF_STREAM CTL_CODE_MPEG_AUDIO(7)
// Input: MPEG_ATTRIBUTE
// Output: none
#define IOCTL_MPEG_AUDIO_SET_ATTRIBUTE CTL_CODE_MPEG_AUDIO(8)
// Input: none
// Output: MPEG_ATTRIBUTE
#define IOCTL_MPEG_AUDIO_GET_ATTRIBUTE CTL_CODE_MPEG_AUDIO(9)
// Input: MPEG_PACKET_LIST[]
// Output: none
#define IOCTL_MPEG_AUDIO_WRITE_PACKETS CTL_CODE_MPEG_AUDIO(10)
//****************************************************************************
// MPEG_VIDEO device IOCTLs
//****************************************************************************
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_RESET CTL_CODE_MPEG_VIDEO(0)
// Input: None
// Output: MPEG_TIME_STAMP
#define IOCTL_MPEG_VIDEO_GET_STC CTL_CODE_MPEG_VIDEO(1)
// Input: MPEG_TIME_STAMP
// Output: None
#define IOCTL_MPEG_VIDEO_SET_STC CTL_CODE_MPEG_VIDEO(2)
// Input: MPEG_TIME_STAMP (optional)
// Output: MPEG_TIME_STAMP (optional)
#define IOCTL_MPEG_VIDEO_SYNC CTL_CODE_MPEG_VIDEO(3)
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_PLAY CTL_CODE_MPEG_VIDEO(4)
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_PAUSE CTL_CODE_MPEG_VIDEO(5)
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_STOP CTL_CODE_MPEG_VIDEO(6)
// Input: None
// Output: MPEG_VIDEO_DEVICE_INFO
#define IOCTL_MPEG_VIDEO_QUERY_DEVICE CTL_CODE_MPEG_VIDEO(7)
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_END_OF_STREAM CTL_CODE_MPEG_VIDEO(8)
// Input: None
// Output: None
#define IOCTL_MPEG_VIDEO_CLEAR_BUFFER CTL_CODE_MPEG_VIDEO(9)
// Input: MPEG_ATTRIBUTE
// Output: none
#define IOCTL_MPEG_VIDEO_SET_ATTRIBUTE CTL_CODE_MPEG_VIDEO(10)
// Input: none
// Output: MPEG_ATTRIBUTE
#define IOCTL_MPEG_VIDEO_GET_ATTRIBUTE CTL_CODE_MPEG_VIDEO(11)
// Input: MPEG_PACKET_LIST[]
// Output: none
#define IOCTL_MPEG_VIDEO_WRITE_PACKETS CTL_CODE_MPEG_VIDEO(12)
//****************************************************************************
// MPEG_OVERLAY device IOCTLs
//****************************************************************************
// Input: MPEG_OVERLAY_MODE
// Output: None
#define IOCTL_MPEG_OVERLAY_MODE CTL_CODE_MPEG_OVERLAY(0)
// Input: MPEG_OVERLAY_PLACEMENT
// Output: None
#define IOCTL_MPEG_OVERLAY_SET_DESTINATION CTL_CODE_MPEG_OVERLAY(1)
// Input: MPEG_OVERLAY_PLACEMENT (optional)
// Output: MPEG_OVERLAY_PLACEMENT (optional)
//#define IOCTL_MPEG_OVERLAY_ALIGN_WINDOW CTL_CODE_MPEG_OVERLAY(2)
// Input: MPEG_OVERLAY_KEY
// Output: None
#define IOCTL_MPEG_OVERLAY_SET_VGAKEY CTL_CODE_MPEG_OVERLAY(3)
// Input: MPEG_ATTRIBUTE
// Output: none
#define IOCTL_MPEG_OVERLAY_SET_ATTRIBUTE CTL_CODE_MPEG_OVERLAY(4)
// Input: none
// Output: MPEG_ATTRIBUTE
#define IOCTL_MPEG_OVERLAY_GET_ATTRIBUTE CTL_CODE_MPEG_OVERLAY(5)
// Input: MPEG_OVERLAY_BIT_MASK
// Output: none
#define IOCTL_MPEG_OVERLAY_SET_BIT_MASK CTL_CODE_MPEG_OVERLAY(6)
// Input: None
// Output: MPEG_OVERLAY_DEVICE_INFO
#define IOCTL_MPEG_OVERLAY_QUERY_DEVICE CTL_CODE_MPEG_OVERLAY(7)
//****************************************************************************
// Data Structures
//****************************************************************************
// Used with: IOCTL_MPEG_VIDEO_QUERY_DEVICE
typedef struct _MPEG_IOCTL_VIDEO_DEVICE_INFO { MPEG_DEVICE_STATE DeviceState; // Current MPEG device decode state
ULONG DecoderBufferSize; // Size of the decoder buffer
ULONG DecoderBufferFullness; // Used bytes in docoder buffer
ULONG DecompressHeight; // Native MPEG decode height
ULONG DecompressWidth; // Native MPEG decode width
//!! below is bogus
ULONG MaximumPendingRequest; // max allowable packet entries in queue
ULONG CurrentPendingRequest; // number of requests not yet serviced
ULONG StatusFlags; // Flags on the current driver status
ULONG BytesOutstanding; // number of bytes outstand of current packet
// !! above is bogus
ULONG StarvationCounter; // The numer of times the device has
// entered the starvation state
} MPEG_IOCTL_VIDEO_DEVICE_INFO, *PMPEG_IOCTL_VIDEO_DEVICE_INFO;
typedef struct _MPEG_IOCTL_AUDIO_PACKET { PVOID Packet; // Pointer to start of ISO MPEG packet
ULONG Length; // Total length of packet
} MPEG_IOCTL_AUDIO_PACKET, *PMPEG_IOCTL_AUDIO_PACKET;
// Used with: IOCTL_MPEG_AUDIO_QUERY_DEVICE
typedef struct _MPEG_IOCTL_AUDIO_DEVICE_INFO { MPEG_DEVICE_STATE DeviceState; // Current MPEG device decode state
ULONG DecoderBufferSize; // Size of the decoder buffer
ULONG DecoderBufferFullness; // Used bytes in docoder buffer
//!! below is bogus
ULONG MaximumPendingRequest; // max allowable packet entries in queue
ULONG CurrentPendingRequest; // number of requests not yet serviced
ULONG StatusFlags; // Flags on the current driver status
ULONG DecoderBufferBytesInUse; // Number of bytes currently in buffer
ULONG BytesOutstanding; // number of bytes outstand of current packet
// !! above is bogus
ULONG StarvationCounter; // The numer of times the device has
// entered the starvation state
} MPEG_IOCTL_AUDIO_DEVICE_INFO, *PMPEG_IOCTL_AUDIO_DEVICE_INFO;
// Used with: IOCTL_MPEG_OVERLAY_QUERY_DEVICE
typedef struct _MPEG_IOCTL_OVERLAY_DEVICE_INFO { ULONG MinDestinationHeight; // Minimum height of overlay
ULONG MaxDestinationHeight; // Maximum height of overlay
ULONG MinDestinationWidth; // Minimum width of overlay
ULONG MaxDestinationWidth; // Maximum width of overlay
} MPEG_IOCTL_OVERLAY_DEVICE_INFO, *PMPEG_IOCTL_OVERLAY_DEVICE_INFO;
// Used with: IOCTL_MPEG_OVERLAY_SET_VGAKEY
typedef struct _MPEG_IOCTL_OVERLAY_KEY { ULONG Color; // palette index or RGB color
ULONG Mask; // significant bits in color
} MPEG_IOCTL_OVERLAY_KEY,*PMPEG_IOCTL_OVERLAY_KEY;
// Used with: IOCTL_MPEG_VIDEO_WRITE_PACKETS
// IOCTL_MPEG_AUDIO_WRITE_PACKETS
// This structure is passed as an array containing a list of packets.
// The entry in the list can be a 0/NULL entry indicating End Of Stream
// Used with: IOCTL_MPEG_AUDIO_GET_ATTRIBUTE
// IOCTL_MPEG_AUDIO_SET_ATTRIBUTE
// IOCTL_MPEG_VIDEO_GET_ATTRIBUTE
// IOCTL_MPEG_VIDEO_SET_ATTRIBUTE
// IOCTL_MPEG_OVERLAY_GET_ATTRIBUTE
// IOCTL_MPEG_OVERLAY_SET_ATTRIBUTE
#endif // #if _MPEG_H
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