Chromecast: IPC messages for browser-based media pipeline.

chromecast/common/media/cma_messages.h

Index: chromecast/common/media/cma_messages.h
diff --git a/chromecast/common/media/cma_messages.h b/chromecast/common/media/cma_messages.h
new file mode 100644
index 0000000000000000000000000000000000000000..06127bcf9ba2d66370a6188d7a0007d392451b40
--- /dev/null
+++ b/chromecast/common/media/cma_messages.h
@@ -0,0 +1,144 @@
+// 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.
+
+// IPC messages for the Cast Media Acceleration (CMA) pipeline.
+// Multiply-included message file, hence no include guard.
+
+#include "chromecast/common/media/cma_param_traits.h"
+#include "chromecast/media/cma/pipeline/load_type.h"
+#include "content/public/common/common_param_traits.h"
+#include "ipc/ipc_message_macros.h"
+#include "media/base/audio_decoder_config.h"
+#include "media/base/buffering_state.h"
+#include "media/base/pipeline_status.h"
+#include "media/base/video_decoder_config.h"
+#include "ui/gfx/ipc/gfx_param_traits.h"
+
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_START CastMediaMsgStart
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(chromecast::media::LoadType,
+                              chromecast::media::kLoadTypeURL,
+                              chromecast::media::kLoadTypeMediaStream)
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::AudioCodec,
+                              media::kUnknownAudioCodec,
+                              media::kAudioCodecMax)
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::SampleFormat,
+                              media::kUnknownSampleFormat,
+                              media::kSampleFormatMax)
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::VideoCodec,
+                              media::kUnknownVideoCodec,
+                              media::kVideoCodecMax)
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::BufferingState,
+                              media::BUFFERING_HAVE_NOTHING,
+                              media::BUFFERING_HAVE_ENOUGH)
+
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::PipelineStatus,
+                              media::PIPELINE_OK,
+                              media::PIPELINE_STATUS_MAX)
+
+IPC_STRUCT_TRAITS_BEGIN(media::PipelineStatistics)
+  IPC_STRUCT_TRAITS_MEMBER(audio_bytes_decoded)
+  IPC_STRUCT_TRAITS_MEMBER(video_bytes_decoded)
+  IPC_STRUCT_TRAITS_MEMBER(video_frames_decoded)
+  IPC_STRUCT_TRAITS_MEMBER(video_frames_dropped)
+IPC_STRUCT_TRAITS_END()
+
+// Messages sent from the renderer to the browser process.
+
+IPC_MESSAGE_CONTROL2(CmaHostMsg_CreateMedia,
+                     int /* Media pipeline ID */,
+                     chromecast::media::LoadType /* Load type */)
+IPC_MESSAGE_CONTROL1(CmaHostMsg_DestroyMedia,
+                     int /* Media pipeline ID */)
+IPC_MESSAGE_CONTROL3(CmaHostMsg_SetCdm,
+                     int /* Media pipeline ID */,
+                     int /* render_frame_id */,
+                     int /* cdm_id */)
+IPC_MESSAGE_CONTROL2(CmaHostMsg_StartPlayingFrom,
+                     int /* Media pipeline ID */,
+                     base::TimeDelta /* Timestamp */)
+IPC_MESSAGE_CONTROL1(CmaHostMsg_Flush,
+                     int /* Media pipeline ID */)
+IPC_MESSAGE_CONTROL1(CmaHostMsg_Stop,
+                     int /* Media pipeline ID */)
+IPC_MESSAGE_CONTROL2(CmaHostMsg_SetPlaybackRate,
+                     int /* Media pipeline ID */,
+                     float /* Playback rate */)
+
+IPC_MESSAGE_CONTROL3(CmaHostMsg_CreateAvPipe,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     size_t /* Fifo size */);
+IPC_MESSAGE_CONTROL3(CmaHostMsg_AudioInitialize,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     media::AudioDecoderConfig /* Audio config */)
+IPC_MESSAGE_CONTROL3(CmaHostMsg_VideoInitialize,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     media::VideoDecoderConfig /* Video config */)
+IPC_MESSAGE_CONTROL3(CmaHostMsg_SetVolume,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     float /* Volume */)
+IPC_MESSAGE_CONTROL2(CmaHostMsg_NotifyPipeWrite,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */)
+
+IPC_MESSAGE_CONTROL5(CmaHostMsg_NotifyExternalSurface,
+                     int /* Surface ID */,
+                     gfx::PointF /* Quad video top left */,
+                     gfx::PointF /* Quad video top right */,
+                     gfx::PointF /* Quad video bottim right */,
+                     gfx::PointF /* Quad video bottom left */)
+
+// Messages from the browser to the renderer process.
+
+IPC_MESSAGE_CONTROL2(CmaMsg_MediaStateChanged,
+                     int /* Media pipeline ID */,
+                     media::PipelineStatus /* Status */)
+IPC_MESSAGE_CONTROL4(CmaMsg_TimeUpdate,
+                     int /* Media pipeline ID */,
+                     base::TimeDelta /* Media time */,
+                     base::TimeDelta /* Max media time */,
+                     base::TimeTicks /* STC */)
+IPC_MESSAGE_CONTROL2(CmaMsg_BufferingNotification,
+                     int /* Media pipeline ID */,
+                     media::BufferingState /* Buffering state */)
+
+IPC_MESSAGE_CONTROL5(CmaMsg_AvPipeCreated,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     bool /* Status */,
+                     base::SharedMemoryHandle /* Shared memory */,
+                     base::FileDescriptor /* socket handle */)
+IPC_MESSAGE_CONTROL3(CmaMsg_TrackStateChanged,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     media::PipelineStatus /* Status */)
+IPC_MESSAGE_CONTROL2(CmaMsg_NotifyPipeRead,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */)
+
+IPC_MESSAGE_CONTROL2(CmaMsg_Eos,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */)
+IPC_MESSAGE_CONTROL3(CmaMsg_PlaybackError,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     media::PipelineStatus /* status */)
+IPC_MESSAGE_CONTROL3(CmaMsg_PlaybackStatistics,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     media::PipelineStatistics /* status */)
+IPC_MESSAGE_CONTROL3(CmaMsg_NaturalSizeChanged,
+                     int /* Media pipeline ID */,
+                     int /* Track ID */,
+                     gfx::Size /* Size */)