media: gpu process ipc video decoder implementation

chrome/common/gpu_video_common.h

+// Copyright (c) 2010 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.
+
+#ifndef CHROME_COMMON_GPU_VIDEO_COMMON_H_
+#define CHROME_COMMON_GPU_VIDEO_COMMON_H_
+
+#include "base/basictypes.h"
+#include "base/shared_memory.h"
+#include "chrome/common/common_param_traits.h"
+
+class GpuVideoServiceInfoParam {
+ public:
+  // route id for GpuVideoService on GPU process side for this channel.
+  int32 video_service_route_id_;
+  // route id for GpuVideoServiceHost on Render process side for this channel.
+  int32 video_service_host_route_id_;
+  // TODO(jiesun): define capabilities of video service.
+  int32 service_available_;
+};
+
+class GpuVideoDecoderInfoParam {
+ public:
+  // global decoder id.
+  int32 decoder_id_;
+  // route id for GpuVideoDecoder on GPU process side for this channel.
+  int32 decoder_route_id_;
+  // route id for GpuVideoServiceHost on Render process side for this channel.
+  int32 decoder_host_route_id_;
+};
+
+class GpuVideoDecoderInitParam {
+ public:
+  int32 codec_id_;
+  int32 width_;
+  int32 height_;
+  int32 profile_;
+  int32 level_;
+  int32 frame_rate_den_;
+  int32 frame_rate_num_;
+  int32 aspect_ratio_den_;
+  int32 aspect_ratio_num_;
+};
+
+class GpuVideoDecoderInitDoneParam {
+ public:
+  enum SurfaceType {
+    SurfaceTypeSystemMemory,
+    SurfaceTypeD3D,
+    SurfaceTypeEGLImage,
+  };
+  enum SurfaceFormat {
+    SurfaceFormat_YV12,
+    SurfaceFormat_NV12,
+    SurfaceFormat_XRGB,
+  };
+  int32 success_;  // other parameter is only meaningful when this is true.
+  int32 provides_buffer;
+  int32 format_;
+  int32 surface_type_;
+  int32 stride_;
+  int32 input_buffer_size_;
+  int32 output_buffer_size_;
+  base::SharedMemoryHandle input_buffer_handle_;
+  // we do not need this if hardware composition is ready.
+  base::SharedMemoryHandle output_buffer_handle_;
+};
+
+class GpuVideoDecoderInputBufferParam {
+ public:
+  int64 timestamp_;  // In unit of microseconds.
+  int32 offset_;
+  int32 size_;
+  int32 flags_;      // miscellaneous flag bit mask
+};
+
+class GpuVideoDecoderOutputBufferParam {
+ public:
+  int64 timestamp_;  // In unit of microseconds.
+  int64 duration_;   // In unit of microseconds.
+  int32 flags_;      // miscellaneous flag bit mask
+
+  enum {
+    kFlagsEndOfStream     = 0x00000001,
+    kFlagsDiscontinuous   = 0x00000002,
+  };
+};
+
+class GpuVideoDecoderErrorInfoParam {
+ public:
+  int32 error_id;  // TODO(jiesun): define enum.
+};
+
+// TODO(jiesun): define this.
+class GpuVideoDecoderFormatChangeParam {
+ public:
+  int32 stride_;
+  int32 input_buffer_size_;
+  int32 output_buffer_size_;
+  base::SharedMemoryHandle input_buffer_handle_;
+  base::SharedMemoryHandle output_buffer_handle_;
+};
+
+namespace IPC {
+
+template <>
+struct ParamTraits<GpuVideoServiceInfoParam> {
+  typedef GpuVideoServiceInfoParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderInfoParam> {
+  typedef GpuVideoDecoderInfoParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderInitParam> {
+  typedef GpuVideoDecoderInitParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderInitDoneParam> {
+  typedef GpuVideoDecoderInitDoneParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderInputBufferParam> {
+  typedef GpuVideoDecoderInputBufferParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderOutputBufferParam> {
+  typedef GpuVideoDecoderOutputBufferParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderErrorInfoParam> {
+  typedef GpuVideoDecoderErrorInfoParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+
+template <>
+struct ParamTraits<GpuVideoDecoderFormatChangeParam> {
+  typedef GpuVideoDecoderFormatChangeParam param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, void** iter, param_type* r);
+  static void Log(const param_type& p, std::wstring* l);
+};
+};
+
+#endif  // CHROME_COMMON_GPU_VIDEO_COMMON_H_
+