/*----------------------------------------------------------------------------
*
* File:
* eas.h
*
* Contents and purpose:
* The public interface header for the EAS synthesizer.
*
* This header only contains declarations that are specific
* to this implementation.
*
* DO NOT MODIFY THIS FILE!
*
* Copyright Sonic Network Inc. 2005, 2006
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*----------------------------------------------------------------------------
* Revision Control:
* $Revision: 852 $
* $Date: 2007-09-04 11:43:49 -0700 (Tue, 04 Sep 2007) $
*----------------------------------------------------------------------------
*/
#ifndef _EAS_H
#define _EAS_H
#include "eas_types.h"
/* for C++ linkage */
#ifdef __cplusplus
extern "C" {
#endif
/* library version macro */
#define MAKE_LIB_VERSION(a,b,c,d) (((((((EAS_U32) a <<8) | (EAS_U32) b) << 8) | (EAS_U32) c) << 8) | (EAS_U32) d)
#define LIB_VERSION MAKE_LIB_VERSION(3, 6, 10, 14)
typedef struct
{
EAS_U32 libVersion;
EAS_BOOL checkedVersion;
EAS_I32 maxVoices;
EAS_I32 numChannels;
EAS_I32 sampleRate;
EAS_I32 mixBufferSize;
EAS_BOOL filterEnabled;
EAS_U32 buildTimeStamp;
EAS_CHAR *buildGUID;
} S_EAS_LIB_CONFIG;
/* enumerated effects module numbers for configuration */
typedef enum
{
EAS_MODULE_ENHANCER = 0,
EAS_MODULE_COMPRESSOR,
EAS_MODULE_REVERB,
EAS_MODULE_CHORUS,
EAS_MODULE_WIDENER,
EAS_MODULE_GRAPHIC_EQ,
EAS_MODULE_WOW,
EAS_MODULE_MAXIMIZER,
EAS_MODULE_TONECONTROLEQ,
NUM_EFFECTS_MODULES
} E_FX_MODULES;
/* enumerated optional module numbers for configuration */
typedef enum
{
EAS_MODULE_MMAPI_TONE_CONTROL = 0,
EAS_MODULE_METRICS
} E_OPT_MODULES;
#define NUM_OPTIONAL_MODULES 2
/* enumerated audio decoders for configuration */
typedef enum
{
EAS_DECODER_PCM = 0,
EAS_DECODER_SMAF_ADPCM,
EAS_DECODER_IMA_ADPCM,
EAS_DECODER_7BIT_SMAF_ADPCM,
EAS_DECODER_NOT_SUPPORTED
} E_DECODER_MODULES;
#define NUM_DECODER_MODULES 4
/* defines for EAS_PEOpenStream flags parameter */
#define PCM_FLAGS_STEREO 0x00000100 /* stream is stereo */
#define PCM_FLAGS_8_BIT 0x00000001 /* 8-bit format */
#define PCM_FLAGS_UNSIGNED 0x00000010 /* unsigned format */
#define PCM_FLAGS_STREAMING 0x80000000 /* streaming mode */
/* maximum volume setting */
#define EAS_MAX_VOLUME 100
/*----------------------------------------------------------------------------
* EAS_Init()
*----------------------------------------------------------------------------
* Purpose:
* Initialize the synthesizer library
*
* Inputs:
* polyphony - number of voices to play (dynamic memory model only)
* ppLibData - pointer to data handle variable for this instance
*
* Outputs:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Init (EAS_DATA_HANDLE *ppEASData);
/*----------------------------------------------------------------------------
* EAS_Config()
*----------------------------------------------------------------------------
* Purpose:
* Returns a pointer to a structure containing the configuration options
* in this library build.
*
* Inputs:
*
* Outputs:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC const S_EAS_LIB_CONFIG *EAS_Config (void);
/*----------------------------------------------------------------------------
* EAS_Shutdown()
*----------------------------------------------------------------------------
* Purpose:
* Shuts down the library. Deallocates any memory associated with the
* synthesizer (dynamic memory model only)
*
* Inputs:
* pEASData - handle to data for this instance
*
* Outputs:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Shutdown (EAS_DATA_HANDLE pEASData);
/*----------------------------------------------------------------------------
* EAS_Render()
*----------------------------------------------------------------------------
* Purpose:
* Parse the Midi data and render PCM audio data.
*
* Inputs:
* pEASData - buffer for internal EAS data
* pOut - output buffer pointer
* nNumRequested - requested num samples to generate
* pnNumGenerated - actual number of samples generated
*
* Outputs:
* EAS_SUCCESS if PCM data was successfully rendered
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Render (EAS_DATA_HANDLE pEASData, EAS_PCM *pOut, EAS_I32 numRequested, EAS_I32 *pNumGenerated);
/*----------------------------------------------------------------------------
* EAS_SetRepeat()
*----------------------------------------------------------------------------
* Purpose:
* Set the selected stream to repeat.
*
* Inputs:
* pEASData - handle to data for this instance
* streamHandle - handle to stream
* repeatCount - repeat count (0 = no repeat, -1 = repeat forever)
*
* Outputs:
*
* Side Effects:
*
* Notes:
* 0 = no repeat
* 1 = repeat once, i.e. play through twice
* -1 = repeat forever
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetRepeat (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 repeatCount);
/*----------------------------------------------------------------------------
* EAS_GetRepeat()
*----------------------------------------------------------------------------
* Purpose:
* Gets the current repeat count for the selected stream.
*
* Inputs:
* pEASData - handle to data for this instance
* streamHandle - handle to stream
* pRrepeatCount - pointer to variable to hold repeat count
*
* Outputs:
*
* Side Effects:
*
* Notes:
* 0 = no repeat
* 1 = repeat once, i.e. play through twice
* -1 = repeat forever
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetRepeat (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pRepeatCount);
/*----------------------------------------------------------------------------
* EAS_SetPlaybackRate()
*----------------------------------------------------------------------------
* Purpose:
* Set the playback rate.
*
* Inputs:
* pEASData - handle to data for this instance
* streamHandle - handle to stream
* rate - rate (28-bit fractional amount)
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetPlaybackRate (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_U32 rate);
#define MAX_PLAYBACK_RATE (EAS_U32)(1L << 29)
#define MIN_PLAYBACK_RATE (EAS_U32)(1L << 27)
/*----------------------------------------------------------------------------
* EAS_SetTransposition)
*----------------------------------------------------------------------------
* Purpose:
* Sets the key tranposition for the synthesizer. Transposes all
* melodic instruments by the specified amount. Range is limited
* to +/-12 semitones.
*
* Inputs:
* pEASData - handle to data for this instance
* streamHandle - handle to stream
* transposition - +/-12 semitones
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetTransposition (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 transposition);
#define MAX_TRANSPOSE 12
/*----------------------------------------------------------------------------
* EAS_SetSynthPolyphony()
*----------------------------------------------------------------------------
* Purpose:
* Set the polyphony of the synthesizer. Value must be >= 1 and <= the
* maximum number of voices. This function will pin the polyphony
* at those limits
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* synthNum - synthesizer number (0 = onboard, 1 = DSP)
* polyphonyCount - the desired polyphony count
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 synthNum, EAS_I32 polyphonyCount);
/*----------------------------------------------------------------------------
* EAS_GetSynthPolyphony()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current polyphony setting of the synthesizer
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* synthNum - synthesizer number (0 = onboard, 1 = DSP)
* pPolyphonyCount - pointer to variable to receive polyphony count
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 synthNum, EAS_I32 *pPolyphonyCount);
/*----------------------------------------------------------------------------
* EAS_SetPolyphony()
*----------------------------------------------------------------------------
* Purpose:
* Set the polyphony of the stream. Value must be >= 1 and <= the
* maximum number of voices. This function will pin the polyphony
* at those limits
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - handle returned by EAS_OpenFile
* polyphonyCount - the desired polyphony count
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 polyphonyCount);
/*----------------------------------------------------------------------------
* EAS_GetPolyphony()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current polyphony setting of the stream
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - handle returned by EAS_OpenFile
* pPolyphonyCount - pointer to variable to receive polyphony count
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pPolyphonyCount);
/*----------------------------------------------------------------------------
* EAS_SetPriority()
*----------------------------------------------------------------------------
* Purpose:
* Set the priority of the stream. Determines which stream's voices
* are stolen when there are insufficient voices for all notes.
* Value must be in the range of 1-255, lower values are higher
* priority. The default priority is 50.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - handle returned by EAS_OpenFile
* polyphonyCount - the desired polyphony count
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 priority);
/*----------------------------------------------------------------------------
* EAS_GetPriority()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current priority setting of the stream
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - handle returned by EAS_OpenFile
* pPriority - pointer to variable to receive priority
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pPriority);
/*----------------------------------------------------------------------------
* EAS_SetVolume()
*----------------------------------------------------------------------------
* Purpose:
* Set the master volume for the mixer. The default volume setting is
* 90 (-10 dB). The volume range is 0 to 100 in 1dB increments.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* volume - the desired master volume
*
* Outputs:
*
*
* Side Effects:
* overrides any previously set master volume from sysex
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 volume);
/*----------------------------------------------------------------------------
* EAS_GetVolume()
*----------------------------------------------------------------------------
* Purpose:
* Returns the master volume for the mixer in 1dB increments.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* volume - the desired master volume
*
* Outputs:
*
*
* Side Effects:
* overrides any previously set master volume from sysex
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_I32 EAS_GetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_SetMaxLoad()
*----------------------------------------------------------------------------
* Purpose:
* Sets the maximum workload the parsers will do in a single call to
* EAS_Render. The units are currently arbitrary, but should correlate
* well to the actual CPU cycles consumed. The primary effect is to
* reduce the occasional peaks in CPU cycles consumed when parsing
* dense parts of a MIDI score. Setting maxWorkLoad to zero disables
* the workload limiting function.
*
* Inputs:
* pEASData - handle to data for this instance
* maxLoad - the desired maximum workload
*
* Outputs:
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetMaxLoad (EAS_DATA_HANDLE pEASData, EAS_I32 maxLoad);
/*----------------------------------------------------------------------------
* EAS_SetMaxPCMStreams()
*----------------------------------------------------------------------------
* Sets the maximum number of PCM streams allowed in parsers that
* use PCM streaming.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - handle returned by EAS_OpenFile
* maxNumStreams - maximum number of PCM streams
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetMaxPCMStreams (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 maxNumStreams);
/*----------------------------------------------------------------------------
* EAS_OpenFile()
*----------------------------------------------------------------------------
* Purpose:
* Opens a file for audio playback.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* locator - pointer to filename or other locating information
* pStreamHandle - pointer to stream handle variable
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_OpenFile (EAS_DATA_HANDLE pEASData, EAS_FILE_LOCATOR locator, EAS_HANDLE *pStreamHandle);
#ifdef MMAPI_SUPPORT
/*----------------------------------------------------------------------------
* EAS_MMAPIToneControl()
*----------------------------------------------------------------------------
* Purpose:
* Opens a ToneControl file for audio playback.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* locator - pointer to filename or other locating information
* pStreamHandle - pointer to stream handle variable
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_MMAPIToneControl (EAS_DATA_HANDLE pEASData, EAS_FILE_LOCATOR locator, EAS_HANDLE *pStreamHandle);
/*----------------------------------------------------------------------------
* EAS_GetWaveFmtChunk
*----------------------------------------------------------------------------
* Helper function to retrieve WAVE file fmt chunk for MMAPI
*----------------------------------------------------------------------------
* pEASData - pointer to EAS persistent data object
* streamHandle - stream handle
* pFmtChunk - pointer to pointer to FMT chunk data
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetWaveFmtChunk (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_VOID_PTR *ppFmtChunk);
#endif
/*----------------------------------------------------------------------------
* EAS_GetFileType
*----------------------------------------------------------------------------
* Returns the file type (see eas_types.h for enumerations)
*----------------------------------------------------------------------------
* pEASData - pointer to EAS persistent data object
* streamHandle - stream handle
* pFileType - pointer to variable to receive file type
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetFileType (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pFileType);
/*----------------------------------------------------------------------------
* EAS_ParseMetaData()
*----------------------------------------------------------------------------
* Purpose:
*
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
* playLength - pointer to variable to store the play length (in msecs)
*
* Outputs:
*
*
* Side Effects:
* - resets the parser to the start of the file
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_ParseMetaData (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pPlayLength);
/*----------------------------------------------------------------------------
* EAS_Prepare()
*----------------------------------------------------------------------------
* Purpose:
* Prepares the synthesizer to play the file or stream. Parses the first
* frame of data from the file and arms the synthesizer.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Prepare (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_State()
*----------------------------------------------------------------------------
* Purpose:
* Returns the state of an audio file or stream.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_State (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_STATE *pState);
/*----------------------------------------------------------------------------
* EAS_RegisterMetaDataCallback()
*----------------------------------------------------------------------------
* Purpose:
* Registers a metadata callback function for parsed metadata. To
* de-register the callback, call this function again with parameter
* cbFunc set to NULL.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
* cbFunc - pointer to host callback function
* metaDataBuffer - pointer to metadata buffer
* metaDataBufSize - maximum size of the metadata buffer
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_RegisterMetaDataCallback (
EAS_DATA_HANDLE pEASData,
EAS_HANDLE streamHandle,
EAS_METADATA_CBFUNC cbFunc,
char *metaDataBuffer,
EAS_I32 metaDataBufSize,
EAS_VOID_PTR pUserData);
/*----------------------------------------------------------------------------
* EAS_GetNoteCount ()
*----------------------------------------------------------------------------
* Returns the total number of notes played in this stream
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
* pNoteCount - pointer to variable to receive note count
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetNoteCount (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pNoteCount);
/*----------------------------------------------------------------------------
* EAS_CloseFile()
*----------------------------------------------------------------------------
* Purpose:
* Closes an audio file or stream. Playback should have either paused or
* completed (EAS_State returns EAS_PAUSED or EAS_STOPPED).
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_CloseFile (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_OpenMIDIStream()
*----------------------------------------------------------------------------
* Purpose:
* Opens a raw MIDI stream allowing the host to route MIDI cable data directly to the synthesizer
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* pStreamHandle - pointer to variable to hold file or stream handle
* streamHandle - open stream or NULL for new synthesizer instance
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_OpenMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE *pStreamHandle, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_WriteMIDIStream()
*----------------------------------------------------------------------------
* Purpose:
* Send data to the MIDI stream device
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - stream handle
* pBuffer - pointer to buffer
* count - number of bytes to write
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_WriteMIDIStream(EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_U8 *pBuffer, EAS_I32 count);
/*----------------------------------------------------------------------------
* EAS_CloseMIDIStream()
*----------------------------------------------------------------------------
* Purpose:
* Closes a raw MIDI stream
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - stream handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_CloseMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_Locate()
*----------------------------------------------------------------------------
* Purpose:
* Locate into the file associated with the handle.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file handle
* milliseconds - playback offset from start of file in milliseconds
*
* Outputs:
*
*
* Side Effects:
* the actual offset will be quantized to the closest update period, typically
* a resolution of 5.9ms. Notes that are started prior to this time will not
* sound. Any notes currently playing will be shut off.
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Locate (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 milliseconds, EAS_BOOL offset);
/*----------------------------------------------------------------------------
* EAS_GetRenderTime()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current playback offset
*
* Inputs:
* pEASData - pointer to overall EAS data structure
*
* Outputs:
* Gets the render time clock in msecs.
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetRenderTime (EAS_DATA_HANDLE pEASData, EAS_I32 *pTime);
/*----------------------------------------------------------------------------
* EAS_GetLocation()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current playback offset
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file handle
*
* Outputs:
* The offset in milliseconds from the start of the current sequence, quantized
* to the nearest update period. Actual resolution is typically 5.9 ms.
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetLocation (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_I32 *pTime);
/*----------------------------------------------------------------------------
* EAS_Pause()
*----------------------------------------------------------------------------
* Purpose:
* Pauses the playback of the data associated with this handle. The audio
* is gracefully ramped down to prevent clicks and pops. It may take several
* buffers of audio before the audio is muted.
*
* Inputs:
* psEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
*
* Outputs:
*
*
* Side Effects:
*
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Pause (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_Resume()
*----------------------------------------------------------------------------
* Purpose:
* Resumes the playback of the data associated with this handle. The audio
* is gracefully ramped up to prevent clicks and pops.
*
* Inputs:
* psEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
*
* Outputs:
*
*
* Side Effects:
*
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_Resume (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle);
/*----------------------------------------------------------------------------
* EAS_GetParameter()
*----------------------------------------------------------------------------
* Purpose:
* Set the parameter of a module. See E_MODULES for a list of modules
* and the header files of the modules for a list of parameters.
*
* Inputs:
* psEASData - pointer to overall EAS data structure
* module - enumerated module number
* param - enumerated parameter number
* pValue - pointer to variable to receive parameter value
*
* Outputs:
*
*
* Side Effects:
*
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module, EAS_I32 param, EAS_I32 *pValue);
/*----------------------------------------------------------------------------
* EAS_SetParameter()
*----------------------------------------------------------------------------
* Purpose:
* Set the parameter of a module. See E_MODULES for a list of modules
* and the header files of the modules for a list of parameters.
*
* Inputs:
* psEASData - pointer to overall EAS data structure
* handle - file or stream handle
* module - enumerated module number
* param - enumerated parameter number
* value - new parameter value
*
* Outputs:
*
*
* Side Effects:
*
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module, EAS_I32 param, EAS_I32 value);
#ifdef _METRICS_ENABLED
/*----------------------------------------------------------------------------
* EAS_MetricsReport()
*----------------------------------------------------------------------------
* Purpose:
* Displays the current metrics through the EAS_Report interface.
*
* Inputs:
* pEASData - instance data handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_MetricsReport (EAS_DATA_HANDLE pEASData);
/*----------------------------------------------------------------------------
* EAS_MetricsReset()
*----------------------------------------------------------------------------
* Purpose:
* Displays the current metrics through the EAS_Report interface.
*
* Inputs:
* pEASData - instance data handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_MetricsReset (EAS_DATA_HANDLE pEASData);
#endif
/*----------------------------------------------------------------------------
* EAS_SetSoundLibrary()
*----------------------------------------------------------------------------
* Purpose:
* Sets the location of the sound library.
*
* Inputs:
* pEASData - instance data handle
* streamHandle - file or stream handle
* pSoundLib - pointer to sound library
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetSoundLibrary (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_SNDLIB_HANDLE pSndLib);
/*----------------------------------------------------------------------------
* EAS_SetHeaderSearchFlag()
*----------------------------------------------------------------------------
* By default, when EAS_OpenFile is called, the parsers check the
* first few bytes of the file looking for a specific header. Some
* mobile devices may add a header to the start of a file, which
* will prevent the parser from recognizing the file. If the
* searchFlag is set to EAS_TRUE, the parser will search the entire
* file looking for the header. This may enable EAS to recognize
* some files that it would ordinarily reject. The negative is that
* it make take slightly longer to process the EAS_OpenFile request.
*
* Inputs:
* pEASData - instance data handle
* searchFlag - search flag (EAS_TRUE or EAS_FALSE)
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetHeaderSearchFlag (EAS_DATA_HANDLE pEASData, EAS_BOOL searchFlag);
/*----------------------------------------------------------------------------
* EAS_SetPlayMode()
*----------------------------------------------------------------------------
* Some file formats support special play modes, such as iMode partial
* play mode. This call can be used to change the play mode. The
* default play mode (usually straight playback) is always zero.
*
* Inputs:
* pEASData - instance data handle
* handle - file or stream handle
* playMode - play mode (see eas_types.h for enumerations)
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetPlayMode (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 playMode);
#ifdef DLS_SYNTHESIZER
/*----------------------------------------------------------------------------
* EAS_LoadDLSCollection()
*----------------------------------------------------------------------------
* Purpose:
* Downloads a DLS collection
*
* Inputs:
* pEASData - instance data handle
* streamHandle - file or stream handle
* locator - file locator
*
* Outputs:
*
*
* Side Effects:
* May overlay instruments in the GM sound set
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_LoadDLSCollection (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_FILE_LOCATOR locator);
#endif
/*----------------------------------------------------------------------------
* EAS_SetFrameBuffer()
*----------------------------------------------------------------------------
* Purpose:
* Sets the frame buffer pointer passed to the IPC communications functions
*
* Inputs:
* pEASData - instance data handle
* locator - file locator
*
* Outputs:
*
*
* Side Effects:
* May overlay instruments in the GM sound set
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_SetFrameBuffer (EAS_DATA_HANDLE pEASData, EAS_FRAME_BUFFER_HANDLE pFrameBuffer);
#ifdef EXTERNAL_AUDIO
/*----------------------------------------------------------------------------
* EAS_RegExtAudioCallback()
*----------------------------------------------------------------------------
* Purpose:
* Registers callback functions for audio events.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
* cbProgChgFunc - pointer to host callback function for program change
* cbEventFunc - pointer to host callback functio for note events
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_RegExtAudioCallback (EAS_DATA_HANDLE pEASData,
EAS_HANDLE streamHandle,
EAS_VOID_PTR pInstData,
EAS_EXT_PRG_CHG_FUNC cbProgChgFunc,
EAS_EXT_EVENT_FUNC cbEventFunc);
/*----------------------------------------------------------------------------
* EAS_GetMIDIControllers()
*----------------------------------------------------------------------------
* Purpose:
* Returns the current state of MIDI controllers on the requested channel.
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* streamHandle - file or stream handle
* pControl - pointer to structure to receive data
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
EAS_PUBLIC EAS_RESULT EAS_GetMIDIControllers (EAS_DATA_HANDLE pEASData, EAS_HANDLE streamHandle, EAS_U8 channel, S_MIDI_CONTROLLERS *pControl);
#endif
/*----------------------------------------------------------------------------
* EAS_SearchFile
*----------------------------------------------------------------------------
* Search file for specific sequence starting at current file
* position. Returns offset to start of sequence.
*
* Inputs:
* pEASData - pointer to EAS persistent data object
* fileHandle - file handle
* searchString - pointer to search sequence
* len - length of search sequence
* pOffset - pointer to variable to store offset to sequence
*
* Returns EAS_EOF if end-of-file is reached
*----------------------------------------------------------------------------
*/
EAS_RESULT EAS_SearchFile (EAS_DATA_HANDLE pEASData, EAS_FILE_HANDLE fileHandle, const EAS_U8 *searchString, EAS_I32 len, EAS_I32 *pOffset);
#ifdef __cplusplus
} /* end extern "C" */
#endif
#endif /* #ifndef _EAS_H */