--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 1997-2011 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
+ *
+ */
+
+#ifndef ECHOCANCEL_H
+#define ECHOCANCEL_H
+
+
+
+
+
+
+#include "bchash.inc"
+#include "bctimer.inc"
+#include "fourier.h"
+#include "guicast.h"
+#include "mutex.h"
+#include "pluginaclient.h"
+#include "vframe.inc"
+
+
+
+
+class EchoCancel;
+
+#define MIN_XZOOM 1
+#define MAX_XZOOM 6
+#define MIN_PEAKS 1
+#define MAX_PEAKS 8
+#define MIN_DAMP 1
+#define MAX_DAMP 8
+#define MIN_CUTOFF 10
+#define MAX_CUTOFF 1000
+#define MIN_WINDOW 1024
+#define MAX_WINDOW 262144
+#define DIVISIONS 10
+#define DIVISION_W 60
+#define MARGIN 10
+#define MAX_HISTORY 32
+#define MIN_HISTORY 1
+#define MIN_FREQ 1
+#define MAX_FREQ 30000
+
+#define CANCEL_OFF 0
+#define CANCEL_ON 1
+#define CANCEL_MAN 2
+
+class EchoCancelLevel : public BC_FPot
+{
+public:
+ EchoCancelLevel(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelMode : public BC_PopupMenu
+{
+public:
+ EchoCancelMode(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ static const char *to_text(int mode);
+ static int to_mode(const char *text);
+ void create_objects();
+ EchoCancel *plugin;
+};
+
+class EchoCancelHistory : public BC_IPot
+{
+public:
+ EchoCancelHistory(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelWindowSize : public BC_PopupMenu
+{
+public:
+ EchoCancelWindowSize(EchoCancel *plugin, int x, int y, const char *text);
+ int handle_event();
+ static const char *to_text(int size);
+ static int to_size(const char *text);
+ EchoCancel *plugin;
+};
+
+class EchoCancelWindowSizeTumbler : public BC_Tumbler
+{
+public:
+ EchoCancelWindowSizeTumbler(EchoCancel *plugin, int x, int y);
+ int handle_up_event();
+ int handle_down_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelNormalize : public BC_CheckBox
+{
+public:
+ EchoCancelNormalize(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelXZoom : public BC_IPot
+{
+public:
+ EchoCancelXZoom(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelPeaks : public BC_IPot
+{
+public:
+ EchoCancelPeaks(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelDamp : public BC_IPot
+{
+public:
+ EchoCancelDamp(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelCutoff : public BC_IPot
+{
+public:
+ EchoCancelCutoff(EchoCancel *plugin, int x, int y);
+ int handle_event();
+ EchoCancel *plugin;
+};
+
+class EchoCancelCanvas : public BC_SubWindow
+{
+public:
+ EchoCancelCanvas(EchoCancel *plugin, int x, int y, int w, int h);
+ int button_press_event();
+ int button_release_event();
+ int cursor_motion_event();
+ void calculate_point(int do_overlay);
+ void draw_frame(float *data, int len, int hh);
+ void draw_overlay();
+ enum { NONE, DRAG };
+ int current_operation;
+ bool is_dragging() { return current_operation == DRAG; }
+ EchoCancel *plugin;
+};
+
+
+class EchoCancelPrefix {
+public:
+ const char *prefix;
+ EchoCancelPrefix(const char *p) : prefix(p) {}
+ ~EchoCancelPrefix() {}
+};
+
+class EchoCancelTitle : public EchoCancelPrefix, public BC_Title {
+ char string[BCSTRLEN];
+ char *preset(int value) {
+ sprintf(string, "%s%d", prefix, value);
+ return string;
+ }
+ char *preset(double value) {
+ sprintf(string, "%s%.3f", prefix, value);
+ return string;
+ }
+public:
+ void update(int value) { BC_Title::update(preset(value)); }
+ void update(double value) { BC_Title::update(preset(value)); }
+
+ EchoCancelTitle(int x, int y, const char *pfx, int value)
+ : EchoCancelPrefix(pfx), BC_Title(x, y, preset(value)) {}
+ EchoCancelTitle(int x, int y, const char *pfx, double value)
+ : EchoCancelPrefix(pfx),BC_Title(x, y, preset(value)) {}
+ ~EchoCancelTitle() {}
+};
+
+
+
+class EchoCancelWindow : public PluginClientWindow
+{
+public:
+ EchoCancelWindow(EchoCancel *plugin);
+ ~EchoCancelWindow();
+
+ void create_objects();
+ void update_gui();
+ int resize_event(int w, int h);
+ void calculate_frequency(int x, int y, int do_overlay);
+
+ EchoCancelCanvas *canvas;
+
+ BC_Title *level_title;
+ EchoCancelLevel *level;
+ BC_Title *window_size_title;
+ EchoCancelWindowSize *window_size;
+ EchoCancelWindowSizeTumbler *window_size_tumbler;
+ BC_Title *mode_title;
+ EchoCancelMode *mode;
+ BC_Title *history_title;
+ EchoCancelHistory *history;
+
+ EchoCancelTitle *gain_title;
+ EchoCancelTitle *offset_title;
+ BC_Title *freq_title;
+ BC_Title *amplitude_title;
+
+ BC_Title *xzoom_title;
+ EchoCancelXZoom *xzoom;
+ BC_Title *peaks_title;
+ EchoCancelPeaks *peaks;
+ BC_Title *damp_title;
+ EchoCancelDamp *damp;
+ BC_Title *cutoff_title;
+ EchoCancelCutoff *cutoff;
+
+ EchoCancelNormalize *normalize;
+ EchoCancel *plugin;
+ int probe_x, probe_y;
+};
+
+
+
+
+
+class EchoCancelConfig
+{
+public:
+ EchoCancelConfig();
+ int equivalent(EchoCancelConfig &that);
+ void copy_from(EchoCancelConfig &that);
+ void interpolate(EchoCancelConfig &prev,
+ EchoCancelConfig &next,
+ int64_t prev_frame,
+ int64_t next_frame,
+ int64_t current_frame);
+ double level;
+ int normalize;
+ int xzoom;
+ int peaks;
+ int damp;
+ int cutoff;
+ double gain;
+ int offset;
+ int window_size;
+ int mode;
+ int history_size;
+};
+
+//unattributed data class
+class DataHeader {
+public:
+ int window_size;
+ int total_windows; // Total windows in this buffer
+ int interrupted; // playback stopped, config changed
+ int sample_rate; // Samplerate
+ float level; // Linearized user level
+ float samples[0];
+ int size() { return sizeof(DataHeader)+ window_size/2 * total_windows; }
+};
+
+// data buffer
+class DataBuffer {
+ int allocated, data_len;
+ DataHeader *data_header;
+ float *sample_data; // offset sample data
+public:
+ void set_buffer(int ofs, int len);
+ float *get_buffer() { return sample_data; }
+ DataHeader *new_data_header(int data_size) {
+ int size = sizeof(DataHeader) + data_size*sizeof(float);
+ return (DataHeader*)(new char[size]);
+ }
+ DataHeader *get_header() { return data_header; }
+
+ DataBuffer(int len) : allocated(0),data_header(0) {
+ //printf("DataBuffer new %p\n",this);
+ set_buffer(0,len); }
+ ~DataBuffer() {
+ //printf("DataBuffer delete %p\n",this);
+ delete [] (char*) data_header; }
+};
+
+class AudioBuffer {
+ int allocated, data_len;
+ Samples *samples;
+ double *sample_data;
+public:
+ double *get_buffer(int ofs=0) {
+ return samples->get_data() + (ofs>=0 ? ofs : buffer_size()+ofs);
+ }
+ double *get_data(int ofs=0) { return sample_data + ofs; }
+ void set_buffer(int ofs, int len);
+ int buffer_size() { return get_data(data_len)-get_buffer(); }
+ int size() { return data_len; }
+ void append(double *bfr, int len);
+ void remove(int len);
+
+ AudioBuffer(int len) : allocated(0),samples(0) { set_buffer(0,len); }
+ ~AudioBuffer() { delete samples; }
+
+};
+
+class EchoCancelFrame {
+ float *data;
+ int len;
+public:
+ int cut_offset;
+
+ EchoCancelFrame(int n);
+ ~EchoCancelFrame();
+ float scale() { return data[0]; }
+ float *samples() { return &data[1]; }
+ int size() { return len; }
+ void rescale(float s) {
+ data[0] = s;
+ for( int i=1; i<=len; ++i ) data[i] *= s;
+ }
+ void todb() {
+ for( int i=1; i<=len; ++i ) data[i] = DB::todb(data[i]);
+ }
+};
+
+class EchoCancel : public PluginAClient
+{
+public:
+ EchoCancel(PluginServer *server);
+ ~EchoCancel();
+
+ PLUGIN_CLASS_MEMBERS2(EchoCancelConfig)
+ int is_realtime();
+ int process_buffer(int64_t size, Samples *buffer,
+ int64_t start_position, int sample_rate);
+ void read_data(KeyFrame *keyframe);
+ void save_data(KeyFrame *keyframe);
+ void update_gui();
+ void render_gui(void *data, int size);
+ void render_stop();
+
+ void reset();
+ void cepstrum(double *audio);
+ void calculate_envelope(int sample_rate, int peaks, int bsz);
+ void create_envelope(int sample_rate);
+ int cancel_echo(double *bp, int size);
+ void delete_buffers();
+ void alloc_buffers(int fft_sz);
+
+ FFT *fft;
+// Data buffer for frequency & magnitude
+ DataBuffer *data;
+// time weighted data
+ float *time_frame;
+ int time_frames;
+// envelope
+ double *envelope, *env_data;
+ double *env_real, *env_imag;
+// correlation
+ double *cor, *aud_real, *aud_imag;
+// Accumulate data for windowing
+ AudioBuffer *audio_buffer;
+// Header from last data buffer
+ DataHeader header;
+// Last window size rendered
+ int window_size, half_window;
+ int interrupted;
+// Accumulates canvas pixels until the next update_gui
+ ArrayList<EchoCancelFrame*> frame_buffer;
+// Probing data for horizontal mode
+ ArrayList<EchoCancelFrame*> frame_history;
+// Time of last GUI update
+ Timer *timer;
+// Window dimensions
+ int w, h;
+// Help for the wicked
+ static void dfile_dump(const char *fn, double *dp, int n);
+ static void ffile_dump(const char *fn, float *dp, int n);
+};
+
+
+#endif
projects / goodguy / history.git / blobdiff