PPB_AudioBuffer Struct Reference - Chrome for Developers

Data Fields

PP_Bool(*	IsAudioBuffer )(PP_Resource resource)
PP_TimeDelta(*	GetTimestamp )(PP_Resource buffer)
void(*	SetTimestamp )(PP_Resource buffer, PP_TimeDelta timestamp)
PP_AudioBuffer_SampleRate(*	GetSampleRate )(PP_Resource buffer)
PP_AudioBuffer_SampleSize(*	GetSampleSize )(PP_Resource buffer)
uint32_t(*	GetNumberOfChannels )(PP_Resource buffer)
uint32_t(*	GetNumberOfSamples )(PP_Resource buffer)
void (	GetDataBuffer )(PP_Resource buffer)
uint32_t(*	GetDataBufferSize )(PP_Resource buffer)

Field Documentation

void*(* PPB_AudioBuffer::GetDataBuffer)(PP_Resource buffer)

Gets the data buffer containing the audio samples.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: A pointer to the beginning of the data buffer.

uint32_t(* PPB_AudioBuffer::GetDataBufferSize)(PP_Resource buffer)

Gets the size of the data buffer in bytes.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: The size of the data buffer in bytes.

uint32_t(* PPB_AudioBuffer::GetNumberOfChannels)(PP_Resource buffer)

Gets the number of channels in the audio buffer.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: The number of channels in the audio buffer.

uint32_t(* PPB_AudioBuffer::GetNumberOfSamples)(PP_Resource buffer)

Gets the number of samples in the audio buffer.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: The number of samples in the audio buffer. For example, at a sampling rate of 44,100 Hz in stereo audio, a buffer containing 4410 * 2 samples would have a duration of 100 milliseconds.

PP_AudioBuffer_SampleRate(* PPB_AudioBuffer::GetSampleRate)(PP_Resource buffer)

Gets the sample rate of the audio buffer.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: The sample rate of the audio buffer.

PP_AudioBuffer_SampleSize(* PPB_AudioBuffer::GetSampleSize)(PP_Resource buffer)

Gets the sample size of the audio buffer.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: The sample size of the audio buffer.

PP_TimeDelta(* PPB_AudioBuffer::GetTimestamp)(PP_Resource buffer)

Gets the timestamp of the audio buffer.

Parameters:

[in] buffer A PP_Resource corresponding to an audio buffer resource.

Returns:: A PP_TimeDelta containing the timestamp of the audio buffer. Given in seconds since the start of the containing audio stream.

PP_Bool(* PPB_AudioBuffer::IsAudioBuffer)(PP_Resource resource)

Determines if a resource is an AudioBuffer resource.

Parameters:

[in] resource The PP_Resource to test.

Returns:: A PP_Bool with PP_TRUE if the given resource is an AudioBuffer resource or PP_FALSE otherwise.

void(* PPB_AudioBuffer::SetTimestamp)(PP_Resource buffer, PP_TimeDelta timestamp)

Sets the timestamp of the audio buffer.

Parameters:

[in]	buffer	A `PP_Resource` corresponding to an audio buffer resource.
[in]	timestamp	A `PP_TimeDelta` containing the timestamp of the audio buffer. Given in seconds since the start of the containing audio stream.

The documentation for this struct was generated from the following file:

ppb_audio_buffer.h