/*
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* xcam_analyzer.h - libxcam analyzer
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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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* Zong Wei <wei.zong@intel.com>
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*/
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#ifndef XCAM_ANALYZER_H
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#define XCAM_ANALYZER_H
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#include <xcam_std.h>
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#include <handler_interface.h>
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#include <xcam_thread.h>
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#include <video_buffer.h>
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#include <safe_list.h>
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namespace XCam {
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class XAnalyzer;
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class AnalyzerThread
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: public Thread
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{
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public:
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AnalyzerThread (XAnalyzer *analyzer);
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~AnalyzerThread ();
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void triger_stop() {
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_stats_queue.pause_pop ();
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}
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bool push_stats (const SmartPtr<VideoBuffer> &buffer);
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protected:
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virtual bool started ();
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virtual void stopped () {
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_stats_queue.clear ();
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}
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virtual bool loop ();
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private:
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XAnalyzer *_analyzer;
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SafeList<VideoBuffer> _stats_queue;
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};
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class AnalyzerCallback {
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public:
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explicit AnalyzerCallback () {}
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virtual ~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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private:
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XCAM_DEAD_COPY (AnalyzerCallback);
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};
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class AnalyzerThread;
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class XAnalyzer {
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friend class AnalyzerThread;
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public:
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explicit XAnalyzer (const char *name = NULL);
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virtual ~XAnalyzer ();
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bool set_results_callback (AnalyzerCallback *callback);
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XCamReturn prepare_handlers ();
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// prepare_handlers must called before init
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XCamReturn init (uint32_t width, uint32_t height, double framerate);
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XCamReturn deinit ();
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// set_sync_mode must be called before start
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XCamReturn set_sync_mode (bool sync);
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bool get_sync_mode () const {
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return _sync;
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};
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XCamReturn start ();
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XCamReturn stop ();
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XCamReturn push_buffer (const SmartPtr<VideoBuffer> &buffer);
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uint32_t get_width () const {
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return _width;
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}
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uint32_t get_height () const {
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return _height;
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}
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double get_framerate () const {
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return _framerate;
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}
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const char * get_name () const {
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return _name;
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}
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protected:
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/* virtual function list */
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virtual XCamReturn create_handlers () = 0;
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virtual XCamReturn release_handlers () = 0;
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virtual XCamReturn internal_init (uint32_t width, uint32_t height, double framerate) = 0;
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virtual XCamReturn internal_deinit () = 0;
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// in analyzer thread
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virtual XCamReturn configure () = 0;
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virtual XCamReturn analyze (const SmartPtr<VideoBuffer> &buffer) = 0;
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protected:
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void notify_calculation_done (X3aResultList &results);
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void notify_calculation_failed (AnalyzerHandler *handler, int64_t timestamp, const char *msg);
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void set_results_timestamp (X3aResultList &results, int64_t timestamp);
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private:
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XCAM_DEAD_COPY (XAnalyzer);
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protected:
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SmartPtr<AnalyzerThread> _analyzer_thread;
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private:
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char *_name;
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bool _sync;
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bool _started;
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uint32_t _width;
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uint32_t _height;
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double _framerate;
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AnalyzerCallback *_callback;
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};
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}
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#endif //XCAM_ANALYZER_H
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