Index: content/common/audio_messages.h |
=================================================================== |
--- content/common/audio_messages.h (revision 0) |
+++ content/common/audio_messages.h (revision 0) |
@@ -0,0 +1,115 @@ |
+// Copyright (c) 2011 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. |
+ |
+// IPC messages for the audio. |
+// Multiply-included message file, hence no include guard. |
+ |
+#include "base/shared_memory.h" |
+#include "base/sync_socket.h" |
+#include "content/common/audio_stream_state.h" |
+#include "ipc/ipc_message_macros.h" |
+#include "media/audio/audio_buffers_state.h" |
+#include "media/audio/audio_parameters.h" |
+ |
+#define IPC_MESSAGE_START AudioMsgStart |
+ |
+IPC_ENUM_TRAITS(AudioStreamState) |
+IPC_ENUM_TRAITS(AudioParameters::Format) |
+ |
+IPC_STRUCT_TRAITS_BEGIN(AudioBuffersState) |
+ IPC_STRUCT_TRAITS_MEMBER(pending_bytes) |
+ IPC_STRUCT_TRAITS_MEMBER(hardware_delay_bytes) |
+ IPC_STRUCT_TRAITS_MEMBER(timestamp) |
+IPC_STRUCT_TRAITS_END() |
+ |
+IPC_STRUCT_TRAITS_BEGIN(AudioParameters) |
+ IPC_STRUCT_TRAITS_MEMBER(format) |
+ IPC_STRUCT_TRAITS_MEMBER(channels) |
+ IPC_STRUCT_TRAITS_MEMBER(sample_rate) |
+ IPC_STRUCT_TRAITS_MEMBER(bits_per_sample) |
+ IPC_STRUCT_TRAITS_MEMBER(samples_per_packet) |
+IPC_STRUCT_TRAITS_END() |
+ |
+// Messages sent from the browser to the renderer. |
+ |
+// Sent by AudioRendererHost to renderer to request an audio packet. |
+IPC_MESSAGE_ROUTED2(AudioMsg_RequestPacket, |
+ int /* stream id */, |
+ AudioBuffersState) |
+ |
+// Tell the renderer process that the audio stream has been created, renderer |
+// process would be given a ShareMemoryHandle that it should write to from |
+// then on. |
+IPC_MESSAGE_ROUTED3(AudioMsg_NotifyStreamCreated, |
+ int /* stream id */, |
+ base::SharedMemoryHandle /* handle */, |
+ uint32 /* length */) |
+ |
+// Tell the renderer process that a low latency audio stream has been created, |
+// renderer process would be given a SyncSocket that it should write to from |
+// then on. |
+#if defined(OS_WIN) |
+IPC_MESSAGE_ROUTED4(AudioMsg_NotifyLowLatencyStreamCreated, |
+ int /* stream id */, |
+ base::SharedMemoryHandle /* handle */, |
+ base::SyncSocket::Handle /* socket handle */, |
+ uint32 /* length */) |
+#else |
+IPC_MESSAGE_ROUTED4(AudioMsg_NotifyLowLatencyStreamCreated, |
+ int /* stream id */, |
+ base::SharedMemoryHandle /* handle */, |
+ base::FileDescriptor /* socket handle */, |
+ uint32 /* length */) |
+#endif |
+ |
+// Notification message sent from AudioRendererHost to renderer for state |
+// update after the renderer has requested a Create/Start/Close. |
+IPC_MESSAGE_ROUTED2(AudioMsg_NotifyStreamStateChanged, |
+ int /* stream id */, |
+ AudioStreamState /* new state */) |
+ |
+IPC_MESSAGE_ROUTED2(AudioMsg_NotifyStreamVolume, |
+ int /* stream id */, |
+ double /* volume */) |
+ |
+// Messages sent from the renderer to the browser. |
+ |
+// Request that got sent to browser for creating an audio output stream |
+IPC_MESSAGE_ROUTED3(AudioHostMsg_CreateStream, |
+ int /* stream_id */, |
+ AudioParameters /* params */, |
+ bool /* low-latency */) |
+ |
+// Tell the browser the audio buffer prepared for stream |
+// (render_view_id, stream_id) is filled and is ready to be consumed. |
+IPC_MESSAGE_ROUTED2(AudioHostMsg_NotifyPacketReady, |
+ int /* stream_id */, |
+ uint32 /* packet size */) |
+ |
+// Start buffering and play the audio stream specified by |
+// (render_view_id, stream_id). |
+IPC_MESSAGE_ROUTED1(AudioHostMsg_PlayStream, |
+ int /* stream_id */) |
+ |
+// Pause the audio stream specified by (render_view_id, stream_id). |
+IPC_MESSAGE_ROUTED1(AudioHostMsg_PauseStream, |
+ int /* stream_id */) |
+ |
+// Discard all buffered audio data for the specified audio stream. |
+IPC_MESSAGE_ROUTED1(AudioHostMsg_FlushStream, |
+ int /* stream_id */) |
+ |
+// Close an audio stream specified by (render_view_id, stream_id). |
+IPC_MESSAGE_ROUTED1(AudioHostMsg_CloseStream, |
+ int /* stream_id */) |
+ |
+// Get audio volume of the stream specified by (render_view_id, stream_id). |
+IPC_MESSAGE_ROUTED1(AudioHostMsg_GetVolume, |
+ int /* stream_id */) |
+ |
+// Set audio volume of the stream specified by (render_view_id, stream_id). |
+// TODO(hclam): change this to vector if we have channel numbers other than 2. |
+IPC_MESSAGE_ROUTED2(AudioHostMsg_SetVolume, |
+ int /* stream_id */, |
+ double /* volume */) |
Property changes on: content\common\audio_messages.h |
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Added: svn:eol-style |
+ LF |