Copyright © 2005-2018 MultiMedia Soft

MediaFileDecoder.FileOpenRaw method

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Remarks

 

Opens and decodes the specified file in RAW format.

 

An opened file can be closed through the MediaFileDecoder.FileClose method.

 

For details about management of media files decoding, refer to the How to decode media files tutorial.

 

 

Syntax

 

[Visual Basic]

Public Function FileOpenRaw (

strPathname as String,

nEncodeMode as enumRAWEncodeModes,

bIsBigEndian as bool,

nFrequency as Int32,

nChannels as Int32

) as Int32


 

[C#]

public Int32 FileOpenRaw (

string strPathname,

enumRAWEncodeModes nEncodeMode,

bool bIsBigEndian,

Int32 nFrequency,

Int32 nChannels

);


 

[C++]

public: Int32 FileOpenRaw (

string strPathname,

enumRAWEncodeModes nEncodeMode,

bool bIsBigEndian,

Int32 nFrequency,

Int32 nChannels

);


 

 

Parameter

Description

 

 

strPathname

String containing the absolute pathname of the media file to load.

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

false

The RAW file is encoded using little-endian

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

 

 

enumErrorCodes.NOERROR (0)

The media file has been decoded successfully.

Negative value

An error occurred: see the LastError property for further error details or for a list of the possible error values.