| // Copyright 2015 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 CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_ENCODER_HOST_H_ |
| #define CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_ENCODER_HOST_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/shared_memory_mapping.h" |
| #include "base/memory/unsafe_shared_memory_region.h" |
| #include "content/common/content_export.h" |
| #include "content/renderer/pepper/video_encoder_shim.h" |
| #include "gpu/command_buffer/client/gpu_control_client.h" |
| #include "ppapi/c/pp_codecs.h" |
| #include "ppapi/c/ppb_video_frame.h" |
| #include "ppapi/host/host_message_context.h" |
| #include "ppapi/host/resource_host.h" |
| #include "ppapi/proxy/resource_message_params.h" |
| #include "ppapi/shared_impl/media_stream_buffer_manager.h" |
| |
| namespace gpu { |
| class CommandBufferProxyImpl; |
| } |
| |
| namespace media { |
| struct BitstreamBufferMetadata; |
| } // namespace media |
| |
| namespace content { |
| |
| class RendererPpapiHost; |
| |
| class CONTENT_EXPORT PepperVideoEncoderHost |
| : public ppapi::host::ResourceHost, |
| public VideoEncoderShim::Client, |
| public ppapi::MediaStreamBufferManager::Delegate, |
| public gpu::GpuControlClient { |
| public: |
| PepperVideoEncoderHost(RendererPpapiHost* host, |
| PP_Instance instance, |
| PP_Resource resource); |
| ~PepperVideoEncoderHost() override; |
| |
| private: |
| friend class VideoEncoderShim; |
| |
| // Shared memory buffers. |
| struct ShmBuffer { |
| ShmBuffer(uint32_t id, base::UnsafeSharedMemoryRegion shm_region); |
| ~ShmBuffer(); |
| |
| media::BitstreamBuffer ToBitstreamBuffer(); |
| |
| // Index of the buffer in the |shm_buffers_|. Buffers have the same id in |
| // the plugin and the host. |
| uint32_t id; |
| base::UnsafeSharedMemoryRegion region; |
| base::WritableSharedMemoryMapping mapping; |
| bool in_use; |
| }; |
| |
| // VideoEncoderShim implementation. |
| void RequireBitstreamBuffers(unsigned int input_count, |
| const gfx::Size& input_coded_size, |
| size_t output_buffer_size) override; |
| void BitstreamBufferReady( |
| int32_t bitstream_buffer_id, |
| const media::BitstreamBufferMetadata& metadata) override; |
| void NotifyError(media::VideoEncodeAccelerator::Error error) override; |
| |
| // ResourceHost implementation. |
| int32_t OnResourceMessageReceived( |
| const IPC::Message& msg, |
| ppapi::host::HostMessageContext* context) override; |
| |
| // GpuControlClient implementation. |
| void OnGpuControlLostContext() final; |
| void OnGpuControlLostContextMaybeReentrant() final; |
| void OnGpuControlErrorMessage(const char* msg, int id) final {} |
| void OnGpuControlSwapBuffersCompleted( |
| const gpu::SwapBuffersCompleteParams& params) final {} |
| void OnSwapBufferPresented(uint64_t swap_id, |
| const gfx::PresentationFeedback& feedback) final {} |
| void OnGpuControlReturnData(base::span<const uint8_t> data) final; |
| |
| int32_t OnHostMsgGetSupportedProfiles( |
| ppapi::host::HostMessageContext* context); |
| int32_t OnHostMsgInitialize(ppapi::host::HostMessageContext* context, |
| PP_VideoFrame_Format input_format, |
| const PP_Size& input_visible_size, |
| PP_VideoProfile output_profile, |
| uint32_t initial_bitrate, |
| PP_HardwareAcceleration acceleration); |
| int32_t OnHostMsgGetVideoFrames(ppapi::host::HostMessageContext* context); |
| int32_t OnHostMsgEncode(ppapi::host::HostMessageContext* context, |
| uint32_t frame_id, |
| bool force_keyframe); |
| int32_t OnHostMsgRecycleBitstreamBuffer( |
| ppapi::host::HostMessageContext* context, |
| uint32_t buffer_id); |
| int32_t OnHostMsgRequestEncodingParametersChange( |
| ppapi::host::HostMessageContext* context, |
| uint32_t bitrate, |
| uint32_t framerate); |
| int32_t OnHostMsgClose(ppapi::host::HostMessageContext* context); |
| |
| // Internal methods. |
| void GetSupportedProfiles( |
| std::vector<PP_VideoProfileDescription>* pp_profiles); |
| bool IsInitializationValid(const PP_Size& input_size, |
| PP_VideoProfile ouput_profile, |
| PP_HardwareAcceleration acceleration); |
| bool EnsureGpuChannel(); |
| bool InitializeHardware(media::VideoPixelFormat input_format, |
| const gfx::Size& input_visible_size, |
| media::VideoCodecProfile output_profile, |
| uint32_t initial_bitrate); |
| void Close(); |
| void AllocateVideoFrames(); |
| void SendGetFramesErrorReply(int32_t error); |
| scoped_refptr<media::VideoFrame> CreateVideoFrame( |
| uint32_t frame_id, |
| const ppapi::host::ReplyMessageContext& reply_context); |
| void FrameReleased(const ppapi::host::ReplyMessageContext& reply_context, |
| uint32_t frame_id); |
| void NotifyPepperError(int32_t error); |
| |
| // Helper method for VideoEncoderShim. |
| uint8_t* ShmHandleToAddress(int32_t buffer_id); |
| |
| // Non-owning pointer. |
| RendererPpapiHost* renderer_ppapi_host_; |
| |
| std::vector<std::unique_ptr<ShmBuffer>> shm_buffers_; |
| |
| // Buffer manager for shared memory that holds video frames. |
| ppapi::MediaStreamBufferManager buffer_manager_; |
| |
| std::unique_ptr<gpu::CommandBufferProxyImpl> command_buffer_; |
| |
| std::unique_ptr<VideoEncoderShim> encoder_; |
| |
| // Whether the encoder has been successfully initialized. |
| bool initialized_; |
| |
| // Saved context to answer an Initialize message from the plugin. |
| ppapi::host::ReplyMessageContext initialize_reply_context_; |
| |
| // Saved context to answer a GetVideoFrames message from the plugin. |
| ppapi::host::ReplyMessageContext get_video_frames_reply_context_; |
| |
| // This represents the current error state of the encoder, i.e. PP_OK |
| // normally, or a Pepper error code if the encoder is uninitialized, |
| // has been notified of an encoder error, has encountered some |
| // other unrecoverable error, or has been closed by the plugin. |
| // This field is checked in most message handlers to decide whether |
| // operations should proceed or fail. |
| int32_t encoder_last_error_; |
| |
| // Size of the frames allocated for the encoder (matching hardware |
| // constraints). |
| gfx::Size input_coded_size_; |
| |
| // Number of frames the encoder needs. |
| uint32_t frame_count_; |
| |
| // Format of the frames to give to the encoder. |
| media::VideoPixelFormat media_input_format_; |
| |
| #if DCHECK_IS_ON() |
| bool lost_context_ = false; |
| #endif |
| |
| base::WeakPtrFactory<PepperVideoEncoderHost> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(PepperVideoEncoderHost); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_PEPPER_VIDEO_ENCODER_HOST_H_ |