You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
5.1 KiB
142 lines
5.1 KiB
/*
|
|
* File: appavcap.h
|
|
*
|
|
* Network audio/video application capability interface. Provides
|
|
* data structures for adding, removing, enumerating, prioritizing,\
|
|
* and enabling/disabling codecs independently for send/receive.
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef _APPAVCAP_H
|
|
#define _APPAVCAP_H
|
|
|
|
#include <mmreg.h>
|
|
#include <msacm.h>
|
|
|
|
#include <pshpack8.h> /* Assume 8 byte packing throughout */
|
|
|
|
// For use as dimension for variable size arrays
|
|
#define VARIABLE_DIM 1
|
|
|
|
// CPU utilization numbers for NetMeeting-provided codecs
|
|
#define LNH_48_CPU 97
|
|
#define LNH_8_CPU 47
|
|
#define LNH_12_CPU 48
|
|
#define LNH_16_CPU 49
|
|
#define MS_G723_CPU 70
|
|
#define CCITT_A_CPU 24
|
|
#define CCITT_U_CPU 25
|
|
#define MSRT24_CPU 55
|
|
|
|
|
|
// AUDIO_FORMAT_ID is an index into an array of AUDCAPS structures
|
|
typedef DWORD AUDIO_FORMAT_ID;
|
|
#define INVALID_AUDIO_FORMAT 0xffffffff
|
|
typedef DWORD MEDIA_FORMAT_ID;
|
|
#define INVALID_MEDIA_FORMAT 0xffffffff
|
|
// VIDEO_FORMAT_ID is an index into an array of VIDCAPS structures
|
|
typedef DWORD VIDEO_FORMAT_ID;
|
|
#define INVALID_VIDEO_FORMAT 0xffffffff
|
|
|
|
/*
|
|
* @doc EXTERNAL DATASTRUC
|
|
*
|
|
* AUDIO capabilities info structure
|
|
*
|
|
* @struct AUDCAP_INFO | AUDIO capabilities info structure.
|
|
* Use for both input and output when calling capabilties APIs.
|
|
* The fields are input-only, output-only or input/output depending on the API used.
|
|
* Behavior is undefined if these are altered.
|
|
*/
|
|
|
|
// basic audcap structure
|
|
typedef struct BasicAudCapInfo
|
|
{
|
|
WORD wFormatTag; // @field The ACM format tag
|
|
AUDIO_FORMAT_ID Id; // @field (OUTPUT only) The local id (a.k.a. *Handle*) of this capability entry
|
|
char szFormat[ACMFORMATDETAILS_FORMAT_CHARS]; // @field (OUTPUT only) Descriptive string of
|
|
// the format, e.g. "Microsoft GSM 6.10"
|
|
UINT uMaxBitrate; // @field (OUTPUT only) Worst case bitrate
|
|
UINT uAvgBitrate; // @field The average bitrate for this codec
|
|
WORD wCPUUtilizationEncode; // @field % of Pentium 90Mhz needed for compress
|
|
WORD wCPUUtilizationDecode; // @field % of Pentium 90Mhz needed for decompress
|
|
|
|
BOOL bSendEnabled; // @field OK to use this format for sending
|
|
BOOL bRecvEnabled; // @field OK to use this format for receiving
|
|
WORD wSortIndex; // @field The ordered position of this entry
|
|
// in the capability table. Can be used as input only
|
|
// in ReorderFormats
|
|
}BASIC_AUDCAP_INFO, *PBASIC_AUDCAP_INFO, AUDCAP_INFO, *PAUDCAP_INFO;
|
|
|
|
/*
|
|
* @struct AUDCAP_INFO_LIST | List of AUDCAP_INFO structures
|
|
*/
|
|
typedef struct _audcapinfolist
|
|
{
|
|
ULONG cFormats; // @field Number of AUDCAP_INFO structures in this list
|
|
AUDCAP_INFO aFormats[VARIABLE_DIM]; // @field cFormats AUDCAP_INFO structures
|
|
} AUDCAP_INFO_LIST, *PAUDCAP_INFO_LIST;
|
|
|
|
/*
|
|
* @enum VIDEO_SIZES | Enumeration values for the three video sizes supported by NetMeeting
|
|
*/
|
|
typedef enum
|
|
{
|
|
Small = 0, // @emem Small size video
|
|
Medium, // @emem Medium size video
|
|
Large // @emem Large size video
|
|
} VIDEO_SIZES;
|
|
|
|
/*
|
|
* VIDEO capabilities info structure
|
|
*
|
|
* @struct VIDCAP_INFO | VIDEO capabilities info structure.
|
|
* Use for both input and output when calling capabilties APIs.
|
|
* The fields are input-only, output-only or input/output depending on the API used.
|
|
* Behavior is undefined if these are altered.
|
|
*/
|
|
|
|
// VIDCAP_INFO structure
|
|
typedef struct BasicVidCapInfo
|
|
{
|
|
// format identification
|
|
DWORD dwFormatTag; // @field The format tag of this format
|
|
VIDEO_FORMAT_ID Id; // @field (OUTPUT only) The local id (a.k.a. *Handle*) of this capability entry
|
|
char szFormat[ACMFORMATDETAILS_FORMAT_CHARS]; // @field (OUTPUT only) Descriptive string of,
|
|
// the formate.g. "Microsoft H.263"
|
|
// NetMeeting specific info
|
|
WORD wCPUUtilizationEncode; // @field % of Pentium 90Mhz needed for compress
|
|
WORD wCPUUtilizationDecode; // @field % of Pentium 90Mhz needed for decompress
|
|
BOOL bSendEnabled; // @field OK to use this format for sending
|
|
BOOL bRecvEnabled; // @field OK to use this format for receiving
|
|
WORD wSortIndex; // @field (OUTPUT only) The ordered position of this entry
|
|
// in the capability table.
|
|
|
|
// video format details
|
|
VIDEO_SIZES enumVideoSize; // @field The video size for this format. Different video sizes for
|
|
// the same formats must be added as separate formats
|
|
BITMAPINFOHEADER bih; // @field The BITMAPINFOHEADER sturcture for the video
|
|
// size in enumVideosize
|
|
UINT uFrameRate; // @field Number of frames per second
|
|
DWORD dwBitsPerSample; // @field number of bits per sample for this format. Must
|
|
// match the value in bih.biBitCount
|
|
UINT uAvgBitrate; // @field The average bitrate for this codec
|
|
UINT uMaxBitrate; // @field (OUTPUT only) Worst case bitrate
|
|
}BASIC_VIDCAP_INFO, *PBASIC_VIDCAP_INFO, VIDCAP_INFO, *PVIDCAP_INFO;
|
|
|
|
|
|
/*
|
|
* @struct VIDCAP_INFO_LIST | List of VIDCAP_INFO structures
|
|
*/
|
|
typedef struct _vidcapinfolist
|
|
{
|
|
ULONG cFormats;// @field Number of VIDCAP_INFO structures in this list
|
|
VIDCAP_INFO aFormats[VARIABLE_DIM]; // @field cFormats VIDCAP_INFO structures
|
|
} VIDCAP_INFO_LIST, *PVIDCAP_INFO_LIST;
|
|
|
|
#include <poppack.h> /* End byte packing */
|
|
|
|
|
|
#endif //#ifndef _APPAVCAP_H
|
|
|