cef/include/capi/cef_audio_handler_capi.h

// Copyright (c) 2019 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
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// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
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// $hash=0385a38b6761c5dec07bb89a95a007ad3c11bea6$
//

#ifndef CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_browser_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

///
// Implement this structure to handle audio events All functions will be called
// on the UI thread
///
typedef struct _cef_audio_handler_t {
  ///
  // Base structure.
  ///
  cef_base_ref_counted_t base;

  ///
  // Called when the stream identified by |audio_stream_id| has started.
  // |audio_stream_id| will uniquely identify the stream across all future
  // cef_audio_handler_t callbacks. OnAudioSteamStopped will always be called
  // after OnAudioStreamStarted; both functions may be called multiple times for
  // the same stream. |channels| is the number of channels, |channel_layout| is
  // the layout of the channels and |sample_rate| is the stream sample rate.
  // |frames_per_buffer| is the maximum number of frames that will occur in the
  // PCM packet passed to OnAudioStreamPacket.
  ///
  void(CEF_CALLBACK* on_audio_stream_started)(
      struct _cef_audio_handler_t* self,
      struct _cef_browser_t* browser,
      int audio_stream_id,
      int channels,
      cef_channel_layout_t channel_layout,
      int sample_rate,
      int frames_per_buffer);

  ///
  // Called when a PCM packet is received for the stream identified by
  // |audio_stream_id|. |data| is an array representing the raw PCM data as a
  // floating point type, i.e. 4-byte value(s). |frames| is the number of frames
  // in the PCM packet. |pts| is the presentation timestamp (in milliseconds
  // since the Unix Epoch) and represents the time at which the decompressed
  // packet should be presented to the user. Based on |frames| and the
  // |channel_layout| value passed to OnAudioStreamStarted you can calculate the
  // size of the |data| array in bytes.
  ///
  void(CEF_CALLBACK* on_audio_stream_packet)(struct _cef_audio_handler_t* self,
                                             struct _cef_browser_t* browser,
                                             int audio_stream_id,
                                             const float** data,
                                             int frames,
                                             int64 pts);

  ///
  // Called when the stream identified by |audio_stream_id| has stopped.
  // OnAudioSteamStopped will always be called after OnAudioStreamStarted; both
  // functions may be called multiple times for the same stream.
  ///
  void(CEF_CALLBACK* on_audio_stream_stopped)(struct _cef_audio_handler_t* self,
                                              struct _cef_browser_t* browser,
                                              int audio_stream_id);
} cef_audio_handler_t;

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_AUDIO_HANDLER_CAPI_H_