video_image_frame.h

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/*
 * Copyright (C) 2013-2017 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2013-2017 Robin Gareus <robin@gareus.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#pragma once
 
#include <string>
#include <glib.h>
 
#include <sigc++/signal.h>
#include <pthread.h>
 
#include "ardour/ardour.h"
#include "pbd/signals.h"
 
#include "canvas/container.h"
#include "canvas/pixbuf.h"
#include "canvas/image.h"
 
namespace ARDOUR {
        class TempoSection;
        class MeterSection;
}
 
class PublicEditor;
 
class VideoImageFrame : public sigc::trackable
{
        public:
        VideoImageFrame (PublicEditor&, ArdourCanvas::Container&, int, int, std::string, std::string);
        virtual ~VideoImageFrame ();
 
        void set_position (samplepos_t);
        void set_videoframe (samplepos_t, int rightend = -1);
        samplepos_t get_video_frame_number() {return video_frame_number;}
 
        int get_height () {return clip_height;}
        int get_width ()  {return clip_width;}
        int get_rightend() { return rightend;}
        samplepos_t get_req_frame () {return req_video_frame_number;}
        std::string get_video_server_url () {return video_server_url;}
        std::string get_video_filename ()   {return video_filename;}
 
        void http_download_done (char *);
        PBD::Signal<void()> ImgChanged;
 
        protected:
 
        PublicEditor& editor;
        ArdourCanvas::Container *_parent;
        ArdourCanvas::Image *image;
        std::shared_ptr<ArdourCanvas::Image::Data> img;
 
        int clip_width;
        int clip_height;
        int rightend;
 
        std::string video_server_url;
        std::string video_filename;
 
        double        unit_position;
        samplepos_t   sample_position;
        samplepos_t   video_frame_number;
 
        void reposition ();
        void exposeimg ();
 
        void fill_frame (const uint8_t r, const uint8_t g, const uint8_t b);
        void draw_line ();
        void draw_x ();
        void cut_rightend ();
 
 
        void http_get (samplepos_t fn);
        void http_get_again (samplepos_t fn);
 
        samplepos_t req_video_frame_number;
        samplepos_t want_video_frame_number;
        bool        queued_request;
 
        pthread_mutex_t request_lock;
        pthread_mutex_t queue_lock;
 
        pthread_t      thread_id_tt;
        bool           thread_active;
 
};