AUDIO_STREAM_CONFIG_CAPS (Compact 2013)

3/26/2014

This 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.

Requirements

See Also

Reference

DirectShow Structures