/*
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* device_manager.h - device manager
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*
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* Copyright (c) 2014-2015 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#ifndef XCAM_DEVICE_MANAGER_H
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#define XCAM_DEVICE_MANAGER_H
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#include <xcam_std.h>
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#include <v4l2_device.h>
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#include <v4l2_buffer_proxy.h>
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#include <x3a_analyzer.h>
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#include <smart_analyzer.h>
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#include <x3a_image_process_center.h>
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#include <image_processor.h>
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#include <poll_thread.h>
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#include <stats_callback_interface.h>
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namespace XCam {
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enum XCamMessageType {
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XCAM_MESSAGE_BUF_OK = 0,
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XCAM_MESSAGE_BUF_ERROR,
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XCAM_MESSAGE_STATS_OK,
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XCAM_MESSAGE_STATS_ERROR,
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XCAM_MESSAGE_3A_RESULTS_OK,
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XCAM_MESSAGE_3A_RESULTS_ERROR,
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};
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struct XCamMessage {
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int64_t timestamp;
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XCamMessageType msg_id;
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char *msg;
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XCamMessage (
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XCamMessageType type,
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int64_t timestamp = InvalidTimestamp,
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const char *message = NULL);
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~XCamMessage ();
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XCAM_DEAD_COPY (XCamMessage);
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};
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class MessageThread;
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class DeviceManager
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: public PollCallback
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, public StatsCallback
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, public AnalyzerCallback
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, public ImageProcessCallback
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{
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friend class MessageThread;
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public:
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DeviceManager();
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virtual ~DeviceManager();
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bool set_capture_device (SmartPtr<V4l2Device> device);
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bool set_event_device (SmartPtr<V4l2SubDevice> device);
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bool set_3a_analyzer (SmartPtr<X3aAnalyzer> analyzer);
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bool set_smart_analyzer (SmartPtr<SmartAnalyzer> analyzer);
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bool add_image_processor (SmartPtr<ImageProcessor> processor);
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bool set_poll_thread (SmartPtr<PollThread> thread);
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SmartPtr<V4l2Device>& get_capture_device () {
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return _device;
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}
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SmartPtr<V4l2SubDevice>& get_event_device () {
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return _subdevice;
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}
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SmartPtr<X3aAnalyzer>& get_analyzer () {
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return _3a_analyzer;
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}
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bool is_running () const {
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return _is_running;
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}
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bool has_3a () const {
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return _has_3a;
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}
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XCamReturn start ();
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XCamReturn stop ();
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protected:
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virtual void handle_message (const SmartPtr<XCamMessage> &msg) = 0;
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virtual void handle_buffer (const SmartPtr<VideoBuffer> &buf) = 0;
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protected:
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//virtual functions derived from PollCallback
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virtual XCamReturn poll_buffer_ready (SmartPtr<VideoBuffer> &buf);
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virtual XCamReturn poll_buffer_failed (int64_t timestamp, const char *msg);
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virtual XCamReturn x3a_stats_ready (const SmartPtr<X3aStats> &stats);
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virtual XCamReturn dvs_stats_ready ();
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virtual XCamReturn scaled_image_ready (const SmartPtr<VideoBuffer> &buffer);
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//virtual functions derived from AnalyzerCallback
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virtual void x3a_calculation_done (XAnalyzer *analyzer, X3aResultList &results);
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virtual void x3a_calculation_failed (XAnalyzer *analyzer, int64_t timestamp, const char *msg);
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//virtual functions derived from ImageProcessCallback
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virtual void process_buffer_done (ImageProcessor *processor, const SmartPtr<VideoBuffer> &buf);
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virtual void process_buffer_failed (ImageProcessor *processor, const SmartPtr<VideoBuffer> &buf);
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virtual void process_image_result_done (ImageProcessor *processor, const SmartPtr<X3aResult> &result);
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private:
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void post_message (XCamMessageType type, int64_t timestamp, const char *msg);
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XCamReturn message_loop ();
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XCAM_DEAD_COPY (DeviceManager);
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protected:
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SmartPtr<V4l2Device> _device;
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SmartPtr<V4l2SubDevice> _subdevice;
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SmartPtr<PollThread> _poll_thread;
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/* 3A calculation and image processing*/
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bool _has_3a;
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SmartPtr<X3aAnalyzer> _3a_analyzer;
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SmartPtr<X3aImageProcessCenter> _3a_process_center;
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/* msg queue */
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SafeList<XCamMessage> _msg_queue;
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SmartPtr<MessageThread> _msg_thread;
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bool _is_running;
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/* smart analysis */
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SmartPtr<SmartAnalyzer> _smart_analyzer;
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};
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};
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#endif //XCAM_DEVICE_MANAGER_H
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