AUDIO_STREAM_CONFIG_CAPS Structure

Contains information about all possible audio formats supported.

Syntax

typedef struct _AUDIO_STREAM_CONFIG_CAPS {
        GUID guid;
        ULONG MinimumChannels;
        ULONG MaximumChannels;
        ULONG ChannelsGranularity;
        ULONG MinimumBitsPerSample;
        ULONG MaximumBitsPerSample;
        ULONG BitsPerSampleGranularity;
        ULONG MinimumSampleFrequency;
        ULONG MaximumSampleFrequency;
        ULONG SampleFrequencyGranularity;
    } AUDIO_STREAM_CONFIG_CAPS;

Members

guid
Will be set to MEDIATYPE_Audio to indicate an audio sample.
MinimumChannels
Minimum number of channels this pin supports.
MaximumChannels
Maximum number of channels this pin supports (for example, 2 for stereo).
ChannelsGranularity
Granularity of the channels. For example, you could specify channels 2 through 4 in steps of 2.
MinimumBitsPerSample
Minimum bits per sample.
MaximumBitsPerSample
Maximum bits per sample.
BitsPerSampleGranularity
Granularity of the bits. For example, you could specify 8 bits or 32 bits in steps of 8.
MinimumSampleFrequency
Minimum frequency allowed.
MaximumSampleFrequency
Maximum frequency allowed.
SampleFrequencyGranularity
Granularity of the frequency. For example, you could specify 11025 Hz to 44100 Hz in steps of 11025 Hz.

Remarks

This structure is returned by an audio capture or compression filter.