--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "bcdisplayinfo.h"
+#include "clip.h"
+#include "bchash.h"
+#include "filexml.h"
+#include "guicast.h"
+#include "language.h"
+#include "pluginvclient.h"
+#include "transportque.h"
+
+#include <string.h>
+
+class LoopVideo;
+
+class LoopVideoConfig
+{
+public:
+ LoopVideoConfig();
+ int64_t frames;
+};
+
+
+class LoopVideoFrames : public BC_TextBox
+{
+public:
+ LoopVideoFrames(LoopVideo *plugin,
+ int x,
+ int y);
+ int handle_event();
+ LoopVideo *plugin;
+};
+
+class LoopVideoWindow : public PluginClientWindow
+{
+public:
+ LoopVideoWindow(LoopVideo *plugin);
+ ~LoopVideoWindow();
+ void create_objects();
+ LoopVideo *plugin;
+ LoopVideoFrames *frames;
+};
+
+
+class LoopVideo : public PluginVClient
+{
+public:
+ LoopVideo(PluginServer *server);
+ ~LoopVideo();
+
+ PLUGIN_CLASS_MEMBERS(LoopVideoConfig)
+
+ void save_data(KeyFrame *keyframe);
+ void read_data(KeyFrame *keyframe);
+ void update_gui();
+ int is_realtime();
+ int is_synthesis();
+ int process_buffer(VFrame *frame,
+ int64_t start_position,
+ double frame_rate);
+};
+
+
+
+
+
+
+
+REGISTER_PLUGIN(LoopVideo);
+
+
+
+LoopVideoConfig::LoopVideoConfig()
+{
+ frames = 30;
+}
+
+
+
+
+
+LoopVideoWindow::LoopVideoWindow(LoopVideo *plugin)
+ : PluginClientWindow(plugin,
+ 210,
+ 160,
+ 200,
+ 160,
+ 0)
+{
+ this->plugin = plugin;
+}
+
+LoopVideoWindow::~LoopVideoWindow()
+{
+}
+
+void LoopVideoWindow::create_objects()
+{
+ int x = 10, y = 10;
+
+ add_subwindow(new BC_Title(x, y, _("Frames to loop:")));
+ y += 20;
+ add_subwindow(frames = new LoopVideoFrames(plugin,
+ x,
+ y));
+ show_window();
+ flush();
+}
+
+
+
+
+
+
+
+
+
+
+
+LoopVideoFrames::LoopVideoFrames(LoopVideo *plugin,
+ int x,
+ int y)
+ : BC_TextBox(x,
+ y,
+ 100,
+ 1,
+ plugin->config.frames)
+{
+ this->plugin = plugin;
+}
+
+int LoopVideoFrames::handle_event()
+{
+ plugin->config.frames = atol(get_text());
+ plugin->config.frames = MAX(1, plugin->config.frames);
+ plugin->send_configure_change();
+ return 1;
+}
+
+
+
+
+
+
+
+
+
+LoopVideo::LoopVideo(PluginServer *server)
+ : PluginVClient(server)
+{
+
+}
+
+
+LoopVideo::~LoopVideo()
+{
+
+}
+
+const char* LoopVideo::plugin_title() { return _("Loop video"); }
+int LoopVideo::is_realtime() { return 1; }
+int LoopVideo::is_synthesis() { return 1; }
+
+
+NEW_WINDOW_MACRO(LoopVideo, LoopVideoWindow)
+
+
+
+int LoopVideo::process_buffer(VFrame *frame,
+ int64_t start_position,
+ double frame_rate)
+{
+ int64_t current_loop_position;
+
+// Truncate to next keyframe
+ if(get_direction() == PLAY_FORWARD)
+ {
+// Get start of current loop
+ KeyFrame *prev_keyframe = get_prev_keyframe(start_position);
+ int64_t prev_position = edl_to_local(prev_keyframe->position);
+ if(prev_position == 0)
+ prev_position = get_source_start();
+ read_data(prev_keyframe);
+
+// Get start of fragment in current loop
+ current_loop_position = prev_position +
+ ((start_position - prev_position) %
+ config.frames);
+ while(current_loop_position < prev_position) current_loop_position += config.frames;
+ while(current_loop_position >= prev_position + config.frames) current_loop_position -= config.frames;
+ }
+ else
+ {
+ KeyFrame *prev_keyframe = get_next_keyframe(start_position);
+ int64_t prev_position = edl_to_local(prev_keyframe->position);
+ if(prev_position == 0)
+ prev_position = get_source_start() + get_total_len();
+ read_data(prev_keyframe);
+
+ current_loop_position = prev_position -
+ ((prev_position - start_position) %
+ config.frames);
+ while(current_loop_position <= prev_position - config.frames) current_loop_position += config.frames;
+ while(current_loop_position > prev_position) current_loop_position -= config.frames;
+ }
+
+
+// printf("LoopVideo::process_buffer 100 %lld %lld %lld %d\n",
+// current_position, current_loop_position, current_loop_end, fragment_size);
+ read_frame(frame,
+ 0,
+ current_loop_position,
+ frame_rate,
+ 0);
+
+ return 0;
+}
+
+
+
+
+int LoopVideo::load_configuration()
+{
+ KeyFrame *prev_keyframe;
+ int64_t old_frames = config.frames;
+ prev_keyframe = get_prev_keyframe(get_source_position());
+ read_data(prev_keyframe);
+ config.frames = MAX(config.frames, 1);
+ return old_frames != config.frames;
+}
+
+
+void LoopVideo::save_data(KeyFrame *keyframe)
+{
+ FileXML output;
+
+// cause data to be stored directly in text
+ output.set_shared_output(keyframe->get_data(), MESSAGESIZE);
+ output.tag.set_title("LOOPVIDEO");
+ output.tag.set_property("FRAMES", config.frames);
+ output.append_tag();
+ output.tag.set_title("/LOOPVIDEO");
+ output.append_tag();
+ output.append_newline();
+ output.terminate_string();
+}
+
+void LoopVideo::read_data(KeyFrame *keyframe)
+{
+ FileXML input;
+
+ input.set_shared_input(keyframe->get_data(), strlen(keyframe->get_data()));
+
+ while(!input.read_tag())
+ {
+ if(input.tag.title_is("LOOPVIDEO"))
+ {
+ config.frames = input.tag.get_property("FRAMES", config.frames);
+ }
+ }
+}
+
+void LoopVideo::update_gui()
+{
+ if(thread)
+ {
+ load_configuration();
+ thread->window->lock_window();
+ ((LoopVideoWindow*)thread->window)->frames->update(config.frames);
+ thread->window->unlock_window();
+ }
+}
+
+
+
+
+
projects / goodguy / history.git / blobdiff