Index: content/common/media/encoded_video_capture_messages.h |
diff --git a/content/common/media/encoded_video_capture_messages.h b/content/common/media/encoded_video_capture_messages.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..cb7cd81539185b803ab063cdc3457dae51c8cd51 |
--- /dev/null |
+++ b/content/common/media/encoded_video_capture_messages.h |
@@ -0,0 +1,128 @@ |
+// Copyright (c) 2013 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. |
+ |
+#include "base/memory/shared_memory.h" |
+#include "ipc/ipc_message_macros.h" |
+#include "media/video/capture/video_capture_types.h" |
+#include "media/video/video_encode_types.h" |
+ |
+#undef IPC_MESSAGE_EXPORT |
+#define IPC_MESSAGE_EXPORT CONTENT_EXPORT |
+#define IPC_MESSAGE_START EncodedVideoCaptureMsgStart |
+ |
+#if !defined(OS_ANDROID) |
+IPC_ENUM_TRAITS(media::VideoCodec) |
+#endif // !defined(OS_ANDROID) |
+ |
+IPC_STRUCT_TRAITS_BEGIN(media::VideoEncodingConfig) |
+ IPC_STRUCT_TRAITS_MEMBER(codec_type) |
+ IPC_STRUCT_TRAITS_MEMBER(codec_name) |
+ IPC_STRUCT_TRAITS_MEMBER(max_resolution) |
+ IPC_STRUCT_TRAITS_MEMBER(max_frames_per_second) |
+ IPC_STRUCT_TRAITS_MEMBER(max_bitrate) |
+IPC_STRUCT_TRAITS_END() |
+ |
+IPC_STRUCT_TRAITS_BEGIN(media::RuntimeVideoEncodingParameters) |
+ IPC_STRUCT_TRAITS_MEMBER(target_bitrate) |
+ IPC_STRUCT_TRAITS_MEMBER(max_bitrate) |
+ IPC_STRUCT_TRAITS_MEMBER(frames_per_second) |
+IPC_STRUCT_TRAITS_END() |
+ |
+IPC_STRUCT_TRAITS_BEGIN(media::VideoEncodingParameters) |
+ IPC_STRUCT_TRAITS_MEMBER(codec_name) |
+ IPC_STRUCT_TRAITS_MEMBER(resolution) |
+ IPC_STRUCT_TRAITS_MEMBER(runtime_params) |
+IPC_STRUCT_TRAITS_END() |
+ |
+IPC_STRUCT_TRAITS_BEGIN(media::BufferEncodingMetadata) |
+ IPC_STRUCT_TRAITS_MEMBER(timestamp) |
+ IPC_STRUCT_TRAITS_MEMBER(key_frame) |
+IPC_STRUCT_TRAITS_END() |
+ |
+//------------------------------------------------------------------------------ |
+// Renderer Source Messages |
+// These are messages from the renderer to the browser process. |
+ |
+// Queries the encoding capabilities for the device. A successful request |
+// results in EncoderVideoSourceMessage_CapabilitiesAvailable message. |
+IPC_MESSAGE_CONTROL2(EncodedVideoCaptureHostMsg_GetCapabilities, |
+ int /* device_id */, |
+ media::VideoCaptureSessionId /* session_id */) |
+ |
+// Message from renderer to browser process to create a bitstream with specific |
+// parameters. A successful request results in beginning of streaming and |
+// EncoderVideoCaptureMsg_BitstreamCreated message to renderer. A failed request |
+// triggers EncodedVideoCaptureMsg_BitstreamDestroyed message. |session_id| is |
+// the capture session id returned by the MediaStreamManager. The renderer is |
+// responsible for generating unique |device_id| within its context that will be |
+// used to identify bitstreams in IPC. |
+IPC_MESSAGE_CONTROL3(EncodedVideoCaptureHostMsg_OpenBitstream, |
+ int /* device_id */, |
+ media::VideoCaptureSessionId /* session_id */, |
+ media::VideoEncodingParameters /* params */) |
+ |
+// Stops streaming a bitstream. When browser has finalized the bitstream it will |
+// trigger EncodedVideoCaptureMsg_BitstreamClosed message back to renderer. |
+// Renderer must be prepared to receive EncodedVideoCaptureMsg_BitstreamReady |
+// messages until it receives EncodedVideoCaptureMsg_BitstreamClosed message. |
+IPC_MESSAGE_CONTROL1(EncodedVideoCaptureHostMsg_CloseBitstream, |
+ int /* device_id */) |
+ |
+// Sets a stream's bitstream configuration. Will always result in |
+// EncodedVideoCaptureMsg_BitstreamConfigChanged message containing |
+// currently active parameters, regardless of whether this call succeeded or |
+// not. |
+IPC_MESSAGE_CONTROL2(EncodedVideoCaptureHostMsg_TryConfigureBitstream, |
+ int /* device_id */, |
+ media::RuntimeVideoEncodingParameters /* params */) |
+ |
+// Notifies that the data within a buffer has been processed and it can be |
+// reused to encode upcoming bitstream. |
+IPC_MESSAGE_CONTROL2(EncodedVideoCaptureHostMsg_BitstreamBufferConsumed, |
+ int /* device_id */, |
+ int /* buffer_id */) |
+ |
+//------------------------------------------------------------------------------ |
+// Renderer Messages |
+// These are messages from the browser to the renderer process. |
+ |
+// Reports the encoding capabilities of the device. |
+IPC_MESSAGE_CONTROL2(EncodedVideoCaptureMsg_CapabilitiesAvailable, |
+ int /* device_id */, |
+ media::VideoEncodingCapabilities /* capabilities */) |
+ |
+// Acknowledges a request to open an encoded video bitstream. When this message |
+// occurs, bitstream can be considered to be streaming, and renderer should be |
+// ready to start accepting EncodedVideoCaptureMsg_BitstreamReady messages and |
+// buffers contained within them. Shared memory buffers used to deliver the |
+// bitstream are assigned with buffer IDs as specified by the buffers parameter. |
+// All buffers have the same size as indicated by |buffer_size|. |
+IPC_MESSAGE_CONTROL4(EncodedVideoCaptureMsg_BitstreamOpened, |
+ int /* device_id */, |
+ media::VideoEncodingParameters /* params */, |
+ std::vector<base::SharedMemoryHandle> /* buffers */, |
+ uint32 /* buffer_size */) |
+ |
+// Acknowledges a request to close an encoded video bitstream. |
+IPC_MESSAGE_CONTROL1(EncodedVideoCaptureMsg_BitstreamClosed, |
+ int /* device_id */) |
+ |
+// Informs the clients of the current encoding parameters, regardless of whether |
+// the previous request to change them has been successful or not. It is usually |
+// called in response to EncodedVideoCaptureHostMsg_TryConfigureBitstream |
+// at runtime, but can occur also as a result of config change initiated by |
+// encoder or other clients in the system, e.g. if there are multiple clients |
+// and bitstream config change is requested from one client, all clients should |
+// be prepared to handle the configuration change. |
+IPC_MESSAGE_CONTROL2(EncodedVideoCaptureMsg_BitstreamConfigChanged, |
+ int /* device_id */, |
+ media::RuntimeVideoEncodingParameters /* current_params */) |
+ |
+// Indicates that a bitstream buffer is available for the stream. The value of |
+// |size| indicates the amount of valid bitstream data (in bytes). |
+IPC_MESSAGE_CONTROL4(EncodedVideoCaptureMsg_BitstreamReady, |
+ int /* device_id */, |
+ int /* buffer_id */, |
+ uint32 /* size */, |
+ media::BufferEncodingMetadata /* metadata */) |