ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > Core Component API Reference > Core Component Functions Reference > Multimedia Functions > IG_mult_audio_format_get

This function retrieves the format of the audio in a multimedia instance.


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AT_ERRCOUNT ACCUAPI IG_mult_audio_format_get(
        HIGMULT hMult, 
        LPAT_UINT lpSampleRate, 
        LPAT_UINT lpBitsPerSample,
        LPAT_UINT lpChannels


Name Type Description
hMult HIGMULT Multimedia instance handle.
lpSampleRate LPAT_UINT Number of samples per second.
lpBitsPerSample LPAT_UINT Number of bits per sample.
lpChannels LPAT_UINT Number of channels (1 = mono, 2 = stereo).

Return Value:

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.


Copy Code
AT_ERRCOUNT nErrcount;  /* Number of errors on stack */
HIGMULT hMult;          /* Multimedia instance handle */
AT_UINT nSampleRate;    /* Sample rate of audio */
AT_UINT nBitsPerSample; /* Bits per sample */
AT_UINT nChannels;      /* Number of channels */
nErrcount = IG_mult_audio_format_get(hMult, &nSampleRate, &nBitsPerSample, &nChannels);


Note that audio retrieved using IG_mult_audio_get() is always in uncompressed PCM format. If the multimedia instance does not contain audio, an error will occur.

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