--- /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 "bchash.h"
+#include "filexml.h"
+#include "guicast.h"
+#include "language.h"
+#include "pluginaclient.h"
+#include "samples.h"
+#include "transportque.h"
+
+#include <string.h>
+
+class ReverseAudio;
+
+class ReverseAudioConfig
+{
+public:
+ ReverseAudioConfig();
+ int enabled;
+};
+
+
+class ReverseAudioEnabled : public BC_CheckBox
+{
+public:
+ ReverseAudioEnabled(ReverseAudio *plugin,
+ int x,
+ int y);
+ int handle_event();
+ ReverseAudio *plugin;
+};
+
+class ReverseAudioWindow : public PluginClientWindow
+{
+public:
+ ReverseAudioWindow(ReverseAudio *plugin);
+ ~ReverseAudioWindow();
+ void create_objects();
+
+ ReverseAudio *plugin;
+ ReverseAudioEnabled *enabled;
+};
+
+
+
+class ReverseAudio : public PluginAClient
+{
+public:
+ ReverseAudio(PluginServer *server);
+ ~ReverseAudio();
+
+ PLUGIN_CLASS_MEMBERS(ReverseAudioConfig)
+
+ void save_data(KeyFrame *keyframe);
+ void read_data(KeyFrame *keyframe);
+ void update_gui();
+ int is_realtime();
+ int process_buffer(int64_t size,
+ Samples *buffer,
+ int64_t start_position,
+ int sample_rate);
+
+ int64_t input_position;
+ int fragment_size;
+};
+
+
+
+
+
+
+
+REGISTER_PLUGIN(ReverseAudio);
+
+
+
+ReverseAudioConfig::ReverseAudioConfig()
+{
+ enabled = 1;
+}
+
+
+
+
+
+ReverseAudioWindow::ReverseAudioWindow(ReverseAudio *plugin)
+ : PluginClientWindow(plugin,
+ 210,
+ 160,
+ 200,
+ 160,
+ 0)
+{
+ this->plugin = plugin;
+}
+
+ReverseAudioWindow::~ReverseAudioWindow()
+{
+}
+
+void ReverseAudioWindow::create_objects()
+{
+ int x = 10, y = 10;
+
+ add_subwindow(enabled = new ReverseAudioEnabled(plugin,
+ x,
+ y));
+ show_window();
+ flush();
+}
+
+
+
+
+
+
+ReverseAudioEnabled::ReverseAudioEnabled(ReverseAudio *plugin,
+ int x,
+ int y)
+ : BC_CheckBox(x,
+ y,
+ plugin->config.enabled,
+ _("Enabled"))
+{
+ this->plugin = plugin;
+}
+
+int ReverseAudioEnabled::handle_event()
+{
+ plugin->config.enabled = get_value();
+ plugin->send_configure_change();
+ return 1;
+}
+
+
+
+
+
+
+
+
+
+ReverseAudio::ReverseAudio(PluginServer *server)
+ : PluginAClient(server)
+{
+
+}
+
+
+ReverseAudio::~ReverseAudio()
+{
+
+}
+
+const char* ReverseAudio::plugin_title() { return _("Reverse audio"); }
+int ReverseAudio::is_realtime() { return 1; }
+
+
+NEW_WINDOW_MACRO(ReverseAudio, ReverseAudioWindow)
+
+
+int ReverseAudio::process_buffer(int64_t size,
+ Samples *buffer,
+ int64_t start_position,
+ int sample_rate)
+{
+ for(int i = 0; i < size; i += fragment_size)
+ {
+ fragment_size = size - i;
+ load_configuration();
+ if(config.enabled)
+ {
+ int offset = buffer->get_offset();
+ buffer->set_offset(offset + i);
+ read_samples(buffer,
+ 0,
+ sample_rate,
+ input_position,
+ fragment_size);
+ buffer->set_offset(offset);
+ double *buffer_samples = buffer->get_data();
+
+ for(int start = i, end = i + fragment_size - 1;
+ end > start;
+ start++, end--)
+ {
+ double temp = buffer_samples[start];
+ buffer_samples[start] = buffer_samples[end];
+ buffer_samples[end] = temp;
+ }
+ }
+ else
+ {
+ int offset = buffer->get_offset();
+ buffer->set_offset(offset + i);
+ read_samples(buffer,
+ 0,
+ sample_rate,
+ start_position,
+ fragment_size);
+ buffer->set_offset(offset);
+ }
+
+ if(get_direction() == PLAY_FORWARD)
+ start_position += fragment_size;
+ else
+ start_position -= fragment_size;
+ }
+
+
+ return 0;
+}
+
+
+
+
+int ReverseAudio::load_configuration()
+{
+ KeyFrame *prev_keyframe, *next_keyframe;
+ next_keyframe = get_next_keyframe(get_source_position());
+ prev_keyframe = get_prev_keyframe(get_source_position());
+ read_data(next_keyframe);
+// Previous keyframe stays in config object.
+ read_data(prev_keyframe);
+
+ int64_t prev_position = edl_to_local(prev_keyframe->position);
+ int64_t next_position = edl_to_local(next_keyframe->position);
+
+// printf("ReverseAudio::load_configuration 1 %lld %lld %lld %lld\n",
+// prev_position,
+// next_position,
+// prev_keyframe->position,
+// next_keyframe->position);
+// Defeat default keyframe
+ if(prev_position == 0 && next_position == 0)
+ {
+ next_position = prev_position = get_source_start();
+ }
+
+// Get range to flip in requested rate
+ int64_t range_start = prev_position;
+ int64_t range_end = next_position;
+
+// Between keyframe and edge of range or no keyframes
+ if(range_start == range_end)
+ {
+// Between first keyframe and start of effect
+ if(get_source_position() >= get_source_start() &&
+ get_source_position() < range_start)
+ {
+ range_start = get_source_start();
+ }
+ else
+// Between last keyframe and end of effect
+ if(get_source_position() >= range_start &&
+ get_source_position() < get_source_start() + get_total_len())
+ {
+ range_end = get_source_start() + get_total_len();
+ }
+ else
+ {
+// Should never get here
+ ;
+ }
+ }
+
+// Convert start position to new direction
+ if(get_direction() == PLAY_FORWARD)
+ {
+// Truncate next buffer to keyframe
+ if(range_end - get_source_position() < fragment_size)
+ fragment_size = range_end - get_source_position();
+ input_position = get_source_position() - range_start;
+ input_position = range_end - input_position - fragment_size;
+ }
+ else
+ {
+ if(get_source_position() - range_start < fragment_size)
+ fragment_size = get_source_position() - range_start;
+ input_position = range_end - get_source_position();
+ input_position = range_start + input_position + fragment_size;
+ }
+// printf("ReverseAudio::load_configuration 20 start=%lld end=%lld current=%lld input=%lld\n",
+// range_start,
+// range_end,
+// get_source_position(),
+// input_position);
+
+ return 0;
+}
+
+
+void ReverseAudio::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("REVERSEAUDIO");
+ output.tag.set_property("ENABLED", config.enabled);
+ output.append_tag();
+ output.tag.set_title("/REVERSEAUDIO");
+ output.append_tag();
+ output.append_newline();
+ output.terminate_string();
+}
+
+void ReverseAudio::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("REVERSEAUDIO"))
+ {
+ config.enabled = input.tag.get_property("ENABLED", config.enabled);
+ }
+ }
+}
+
+void ReverseAudio::update_gui()
+{
+ if(thread)
+ {
+ load_configuration();
+ thread->window->lock_window();
+ ((ReverseAudioWindow*)thread->window)->enabled->update(config.enabled);
+ thread->window->unlock_window();
+ }
+}
+
+
+
+
+
projects / goodguy / history.git / blobdiff