| // 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_AUDIO_ENCODER_HOST_H_ |
| #define CONTENT_RENDERER_PEPPER_PEPPER_AUDIO_ENCODER_HOST_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/numerics/safe_math.h" |
| #include "content/common/content_export.h" |
| #include "ppapi/c/pp_codecs.h" |
| #include "ppapi/host/host_message_context.h" |
| #include "ppapi/host/resource_host.h" |
| #include "ppapi/proxy/resource_message_params.h" |
| #include "ppapi/proxy/serialized_structs.h" |
| #include "ppapi/shared_impl/media_stream_buffer_manager.h" |
| |
| namespace content { |
| |
| class RendererPpapiHost; |
| |
| class CONTENT_EXPORT PepperAudioEncoderHost |
| : public ppapi::host::ResourceHost, |
| public ppapi::MediaStreamBufferManager::Delegate { |
| public: |
| PepperAudioEncoderHost(RendererPpapiHost* host, |
| PP_Instance instance, |
| PP_Resource resource); |
| ~PepperAudioEncoderHost() override; |
| |
| private: |
| class AudioEncoderImpl; |
| |
| // ResourceHost implementation. |
| int32_t OnResourceMessageReceived( |
| const IPC::Message& msg, |
| ppapi::host::HostMessageContext* context) override; |
| |
| int32_t OnHostMsgGetSupportedProfiles( |
| ppapi::host::HostMessageContext* context); |
| int32_t OnHostMsgInitialize( |
| ppapi::host::HostMessageContext* context, |
| const ppapi::proxy::PPB_AudioEncodeParameters& parameters); |
| int32_t OnHostMsgGetAudioBuffers(ppapi::host::HostMessageContext* context); |
| int32_t OnHostMsgEncode(ppapi::host::HostMessageContext* context, |
| int32_t buffer_id); |
| int32_t OnHostMsgRecycleBitstreamBuffer( |
| ppapi::host::HostMessageContext* context, |
| int32_t buffer_id); |
| int32_t OnHostMsgRequestBitrateChange( |
| ppapi::host::HostMessageContext* context, |
| uint32_t bitrate); |
| int32_t OnHostMsgClose(ppapi::host::HostMessageContext* context); |
| |
| void GetSupportedProfiles(std::vector<PP_AudioProfileDescription>* profiles); |
| bool IsInitializationValid( |
| const ppapi::proxy::PPB_AudioEncodeParameters& parameters); |
| bool AllocateBuffers( |
| const ppapi::proxy::PPB_AudioEncodeParameters& parameters, |
| int32_t samples_per_frame); |
| void DoEncode(); |
| void BitstreamBufferReady(int32_t audio_buffer_id, |
| int32_t bitstream_buffer_id, |
| int32_t size); |
| void NotifyPepperError(int32_t error); |
| void Close(); |
| |
| static void StopAudioEncoder( |
| std::unique_ptr<AudioEncoderImpl> encoder, |
| std::unique_ptr<ppapi::MediaStreamBufferManager> audio_buffer_manager, |
| std::unique_ptr<ppapi::MediaStreamBufferManager> |
| bitstream_buffer_manager); |
| |
| // Non-owning pointer. |
| RendererPpapiHost* renderer_ppapi_host_; |
| |
| // Whether the encoder has been successfully initialized. |
| bool initialized_; |
| |
| // Last error reported by the encoder. |
| // 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_; |
| |
| // Manages buffers containing audio samples from the plugin. |
| std::unique_ptr<ppapi::MediaStreamBufferManager> audio_buffer_manager_; |
| |
| // Manages buffers containing encoded audio from the browser. |
| std::unique_ptr<ppapi::MediaStreamBufferManager> bitstream_buffer_manager_; |
| |
| // Media task runner used to run the encoder. |
| scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_; |
| |
| // The encoder actually doing the work. |
| std::unique_ptr<AudioEncoderImpl> encoder_; |
| |
| base::WeakPtrFactory<PepperAudioEncoderHost> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PepperAudioEncoderHost); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_PEPPER_PEPPER_AUDIO_ENCODER_HOST_H_ |