[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer

ppapi/c/ppb_audio_buffer.h

+/* Copyright 2014 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* From ppb_audio_buffer.idl modified Thu Feb  6 15:31:48 2014. */
+
+#ifndef PPAPI_C_PPB_AUDIO_BUFFER_H_
+#define PPAPI_C_PPB_AUDIO_BUFFER_H_
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/c/pp_macros.h"
+#include "ppapi/c/pp_resource.h"
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/c/pp_time.h"
+
+#define PPB_AUDIOBUFFER_INTERFACE_0_1 "PPB_AudioBuffer;0.1" /* dev */
+/**
+ * @file
+ * Defines the <code>PPB_AudioBuffer</code> interface.
+ */
+
+
+/**
+ * @addtogroup Enums
+ * @{
+ */
+/**
+ * PP_AudioBuffer_SampleRate is an enumeration of the different audio sample
+ * rates.
+ */
+typedef enum {
+  PP_AUDIOBUFFER_SAMPLERATE_UNKNOWN = 0,
+  PP_AUDIOBUFFER_SAMPLERATE_8000 = 8000,
+  PP_AUDIOBUFFER_SAMPLERATE_44100 = 44100
+} PP_AudioBuffer_SampleRate;
+
+/**
+ * PP_AudioBuffer_SampleSize is an enumeration of the different audio sample
+ * sizes.
+ */
+typedef enum {
+  PP_AUDIOBUFFER_SAMPLESIZE_UNKNOWN = 0,
+  PP_AUDIOBUFFER_SAMPLESIZE_16_BITS = 2
+} PP_AudioBuffer_SampleSize;
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup Interfaces
+ * @{
+ */
+struct PPB_AudioBuffer_0_1 { /* dev */
+  /**
+   * Determines if a resource is an AudioBuffer resource.
+   *
+   * @param[in] resource The <code>PP_Resource</code> to test.
+   *
+   * @return A <code>PP_Bool</code> with <code>PP_TRUE</code> if the given
+   * resource is an AudioBuffer resource or <code>PP_FALSE</code> otherwise.
+   */
+  PP_Bool (*IsAudioBuffer)(PP_Resource resource);
+  /**
+   * Gets the timestamp of the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return A <code>PP_TimeDelta</code> containing the timestamp of the audio
+   * buffer. Given in seconds since the start of the containing audio stream.
+   */
+  PP_TimeDelta (*GetTimestamp)(PP_Resource buffer);
+  /**
+   * Sets the timestamp of the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   * @param[in] timestamp A <code>PP_TimeDelta</code> containing the timestamp
+   * of the audio buffer. Given in seconds since the start of the containing
+   * audio stream.
+   */
+  void (*SetTimestamp)(PP_Resource buffer, PP_TimeDelta timestamp);
+  /**
+   * Gets the sample rate of the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return The sample rate of the audio buffer.
+   */
+  PP_AudioBuffer_SampleRate (*GetSampleRate)(PP_Resource buffer);
+  /**
+   * Gets the sample size of the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return The sample size of the audio buffer.
+   */
+  PP_AudioBuffer_SampleSize (*GetSampleSize)(PP_Resource buffer);
+  /**
+   * Gets the number of channels in the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return The number of channels in the audio buffer.
+   */
+  uint32_t (*GetNumberOfChannels)(PP_Resource buffer);
+  /**
+   * Gets the number of samples in the audio buffer.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return 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.
+   */
+  uint32_t (*GetNumberOfSamples)(PP_Resource buffer);
+  /**
+   * Gets the data buffer containing the audio samples.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return A pointer to the beginning of the data buffer.
+   */
+  void* (*GetDataBuffer)(PP_Resource buffer);
+  /**
+   * Gets the size of the data buffer in bytes.
+   *
+   * @param[in] buffer A <code>PP_Resource</code> corresponding to an audio
+   * buffer resource.
+   *
+   * @return The size of the data buffer in bytes.
+   */
+  uint32_t (*GetDataBufferSize)(PP_Resource buffer);
+};
+/**
+ * @}
+ */
+
+#endif  /* PPAPI_C_PPB_AUDIO_BUFFER_H_ */
+