Copyright © 2001-2018 MultiMedia Soft

LoadSoundFromRawMemory method

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Remarks

 

Loads a sound file in RAW format stored inside a memory buffer.

A successful call to this method will fire the SoundLoaded event.

 

IMPORTANT TOPIC: remember that the memory buffer containing song data must not be moved by the garbage collector and needs to be available till the call to the CloseSound method.

 

Syntax

 

[Visual Basic]

control.LoadSoundFromRawMemory (

nPlayer as Integer,

pBuffer as Variant,

nBufferLen as Long,

nEncodeMode as enumRAWEncodeModes,

bIsBigEndian as enumBoolean,

nFrequency as Long,

nChannels as Long

) as enumErrorCodes


 

[C++]

short control.LoadSoundFromRawMemory (

short nPlayer,

const VARIANT FAR& pBuffer,

long nBufferLen,

short nEncodeMode,

short bIsBigEndian,

long nFrequency,

long nChannels

);


 

 

Parameter

Description

 

 

nPlayer

Number representing the zero-based index of the player that will load the memory sound

pBuffer

Variant parameter containing the pointer to sound data previously loaded in memory.

nBufferLen

Length in bytes of the given buffer

nEncodeMode

Encode mode used to encode the RAW file.

Supported values are the following:

Mnemonic constant

Numeric value

Meaning

RAW_ENCODE_PCM_U8

0

RAW PCM 8 bits Unsigned

RAW_ENCODE_PCM_S8

1

RAW PCM 8 bits Signed

RAW_ENCODE_PCM_S16

2

RAW PCM 16 bits Signed

RAW_ENCODE_PCM_S24

3

RAW PCM 24 bits Signed

RAW_ENCODE_PCM_S32

4

RAW PCM 32 bits Signed

RAW_ENCODE_FLOAT32

5

RAW 32 bits floating point

RAW_ENCODE_G711_ULAW

6

RAW G711 U-LAW

RAW_ENCODE_G711_ALAW

7

RAW G711 A-LAW

RAW_ENCODE_GSM_610

8

RAW GSM 6.10

RAW_ENCODE_DIALOGIC_VOX

9

RAW Dialogic ADPCM VOX

bIsBigEndian

Boolean flag that specifies if bits order inside the RAW file are little-endian or big-endian

Supported values are the following:

Mnemonic Value

Meaning

BOOL_FALSE

The RAW file is encoded using little-endian

BOOL_TRUE

The RAW file is encoded using big-endian

nFrequency

Sample rate of the RAW file (e.g. 44100)

nChannels

Number of channels of the RAW file: 1 for Mono or 2 for Stereo

 

 

Return value

 

Value

Meaning

 

 

Negative value

An error occurred (see the LastError property for further error details)

enumErrorCodes.NOERROR (0)

The file has been loaded correctly.