/*
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* image_processor.h - 3a image processor
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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_IMAGE_PROCESSOR_H
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#define XCAM_IMAGE_PROCESSOR_H
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#include <xcam_std.h>
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#include <video_buffer.h>
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#include <x3a_result.h>
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#include <safe_list.h>
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namespace XCam {
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class ImageProcessor;
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/* callback interface */
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class ImageProcessCallback {
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public:
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ImageProcessCallback () {}
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virtual ~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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XCAM_DEAD_COPY (ImageProcessCallback);
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};
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class ImageProcessorThread;
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class X3aResultsProcessThread;
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/* base class, ImageProcessor */
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class ImageProcessor
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{
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friend class ImageProcessorThread;
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friend class X3aResultsProcessThread;
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typedef SafeList<VideoBuffer> VideoBufQueue;
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public:
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explicit ImageProcessor (const char* name);
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virtual ~ImageProcessor ();
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const char *get_name () const {
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return _name;
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}
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bool set_callback (ImageProcessCallback *callback);
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XCamReturn start();
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XCamReturn stop ();
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XCamReturn push_buffer (SmartPtr<VideoBuffer> &buf);
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XCamReturn push_3a_results (X3aResultList &results);
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XCamReturn push_3a_result (SmartPtr<X3aResult> &result);
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protected:
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virtual bool can_process_result (SmartPtr<X3aResult> &result) = 0;
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virtual XCamReturn apply_3a_results (X3aResultList &results) = 0;
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virtual XCamReturn apply_3a_result (SmartPtr<X3aResult> &result) = 0;
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// buffer runs in another thread
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virtual XCamReturn process_buffer(SmartPtr<VideoBuffer> &input, SmartPtr<VideoBuffer> &output) = 0;
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virtual XCamReturn emit_start ();
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virtual void emit_stop ();
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void notify_process_buffer_done (const SmartPtr<VideoBuffer> &buf);
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void notify_process_buffer_failed (const SmartPtr<VideoBuffer> &buf);
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private:
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void filter_valid_results (X3aResultList &input, X3aResultList &valid_results);
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XCamReturn buffer_process_loop ();
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XCamReturn process_3a_results (X3aResultList &results);
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XCamReturn process_3a_result (SmartPtr<X3aResult> &result);
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private:
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XCAM_DEAD_COPY (ImageProcessor);
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protected:
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char *_name;
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ImageProcessCallback *_callback;
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SmartPtr<ImageProcessorThread> _processor_thread;
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VideoBufQueue _video_buf_queue;
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SmartPtr<X3aResultsProcessThread> _results_thread;
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};
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};
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#endif //XCAM_IMAGE_PROCESSOR_H
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