Difference between revisions of "Unit Codec"
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| − | '' | + | |
| + | <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;"> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Codec specific constants''' <code> CODEC_* </code></div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | | <code>CODEC_NAME_PREFIX = 'Codec';</code> | ||
| + | | Name prefix for Codec Devices | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
| + | <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;"> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Codec device type constants''' <code> CODEC_TYPE_* </code></div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | | <code>CODEC_TYPE_NONE = 0;</code> | ||
| + | | style="width: 50%;"| | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
| + | <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;"> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Codec device state constants''' <code> CODEC_STATE_* </code></div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | | <code>CODEC_STATE_DISABLED = 0;</code> | ||
| + | | style="width: 50%;"| | ||
| + | |- | ||
| + | | <code>CODEC_STATE_ENABLED = 1;</code> | ||
| + | | | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
| + | <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;"> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Codec device flag constants''' <code> CODEC_FLAG_* </code></div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | | <code>CODEC_FLAG_NONE = $00000000;</code> | ||
| + | | style="width: 50%;"| | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
| + | <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;"> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Codec logging constants''' <code> CODEC_LOG_* </code></div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | | <code>CODEC_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;</code> | ||
| + | | Codec debugging messages | ||
| + | |- | ||
| + | | <code>CODEC_LOG_LEVEL_INFO = LOG_LEVEL_INFO;</code> | ||
| + | | Codec informational messages, such as a device being attached or detached | ||
| + | |- | ||
| + | | <code>CODEC_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;</code> | ||
| + | | Codec error messages | ||
| + | |- | ||
| + | | <code>CODEC_LOG_LEVEL_NONE = LOG_LEVEL_NONE;</code> | ||
| + | | No Codec messages | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
=== Type definitions === | === Type definitions === | ||
Revision as of 06:00, 25 November 2016
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Description
To be documented
Constants
Codec specific constants
CODEC_* CODEC_NAME_PREFIX = 'Codec';
|
Name prefix for Codec Devices |
Codec device type constants
CODEC_TYPE_* CODEC_TYPE_NONE = 0;
|
Codec device state constants
CODEC_STATE_* CODEC_STATE_DISABLED = 0;
|
|
CODEC_STATE_ENABLED = 1;
|
Codec device flag constants
CODEC_FLAG_* CODEC_FLAG_NONE = $00000000;
|
Codec logging constants
CODEC_LOG_* CODEC_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;
|
Codec debugging messages |
CODEC_LOG_LEVEL_INFO = LOG_LEVEL_INFO;
|
Codec informational messages, such as a device being attached or detached |
CODEC_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;
|
Codec error messages |
CODEC_LOG_LEVEL_NONE = LOG_LEVEL_NONE;
|
No Codec messages |
Type definitions
To be documented
Public variables
To be documented
Function declarations
Initialization functions
procedure CodecInit;
Description: Initialize the Codec unit and Codec device table
| Note | Called only during system startup |
|---|
Codec device functions
function CodecDeviceProperties(Codec:PCodecDevice; Properties:PCodecProperties):LongWord;
Description: Get the properties for the specified Codec device
| Codec | The Codec device to get properties from |
|---|---|
| Properties | Pointer to a TCodecProperties structure to fill in |
| Return | ERROR_SUCCESS if completed or another error code on failure |
function CodecDeviceCreate:PCodecDevice;
Description: Create a new Codec device entry
| Return | Pointer to new Codec device entry or nil if Codec device could not be created |
|---|
function CodecDeviceCreateEx(Size:LongWord):PCodecDevice;
Description: Create a new Codec device entry
| Size | Size in bytes to allocate for new Codec device (Including the Codec device entry) |
|---|---|
| Return | Pointer to new Codec device entry or nil if Codec device could not be created |
function CodecDeviceDestroy(Codec:PCodecDevice):LongWord;
Description: Destroy an existing Codec device entry
| Note | None documented |
|---|
function CodecDeviceRegister(Codec:PCodecDevice):LongWord;
Description: Register a new Codec device in the Codec device table
| Note | None documented |
|---|
function CodecDeviceDeregister(Codec:PCodecDevice):LongWord;
Description: Deregister an Codec device from the Codec device table
| Note | None documented |
|---|
function CodecDeviceFind(CodecId:LongWord):PCodecDevice;
Description: To be documented
| Note | None documented |
|---|
function CodecDeviceFindByName(const Name:String):PCodecDevice; inline;
Description: To be documented
| Note | None documented |
|---|
function CodecDeviceFindByDescription(const Description:String):PCodecDevice; inline;
Description: To be documented
| Note | None documented |
|---|
function CodecDeviceEnumerate(Callback:TCodecEnumerate; Data:Pointer):LongWord;
Description: To be documented
| Note | None documented |
|---|
function CodecDeviceNotification(Codec:PCodecDevice; Callback:TCodecNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
Codec helper functions
function CodecGetCount:LongWord; inline;
Description: Get the current Codec device count
| Note | None documented |
|---|
function CodecDeviceGetDefault:PCodecDevice; inline;
Description: Get the current default Codec device
| Note | None documented |
|---|
function CodecDeviceSetDefault(Codec:PCodecDevice):LongWord;
Description: Set the current default Codec device
| Note | None documented |
|---|
function CodecDeviceCheck(Codec:PCodecDevice):PCodecDevice;
Description: Check if the supplied Codec device is in the Codec device table
| Note | None documented |
|---|
procedure CodecLog(Level:LongWord; Codec:PCodecDevice; const AText:String);
Description: To be documented
| Note | None documented |
|---|
procedure CodecLogInfo(Codec:PCodecDevice; const AText:String); inline;
Description: To be documented
| Note | None documented |
|---|
procedure CodecLogError(Codec:PCodecDevice; const AText:String); inline;
Description: To be documented
| Note | None documented |
|---|
procedure CodecLogDebug(Codec:PCodecDevice; const AText:String); inline;
Description: To be documented
| Note | None documented |
|---|
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