hvirtual/cinelerra/track.C

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#include "asset.h"
#include "autoconf.h"
#include "automation.h"
#include "bcsignals.h"
#include "clip.h"
#include "edit.h"
#include "edits.h"
#include "edl.h"
#include "edlsession.h"
#include "filexml.h"
#include "floatauto.h"
#include "floatautos.h"
#include "keyframe.h"
#include "localsession.h"
#include "module.h"
#include "patch.h"
#include "patchbay.h"
#include "plugin.h"
#include "pluginset.h"
#include "mainsession.h"
#include "theme.h"
#include "intautos.h"
#include "track.h"
#include "trackcanvas.h"
#include "tracks.h"
#include "transition.h"
#include "transportque.inc"
#include "vedit.h"
#include "vframe.h"
#include <string.h>


Track::Track(EDL *edl, Tracks *tracks) : ListItem<Track>()
{
        this->edl = edl;
        this->tracks = tracks;
        y_pixel = 0;
        expand_view = 0;
        draw = 1;
        gang = 1;
        title[0] = 0;
        record = 1;
        play = 1;
        nudge = 0;
        track_w = edl->session->output_w;
        track_h = edl->session->output_h;
        id = EDL::next_id();
}

Track::~Track()
{
        delete automation;
        delete edits;
        plugin_set.remove_all_objects();
}

int Track::create_objects()
{
        return 0;
}


int Track::copy_settings(Track *track)
{
        this->expand_view = track->expand_view;
        this->draw = track->draw;
        this->gang = track->gang;
        this->record = track->record;
        this->nudge = track->nudge;
        this->play = track->play;
        this->track_w = track->track_w;
        this->track_h = track->track_h;
        strcpy(this->title, track->title);
        return 0;
}

int Track::get_id()
{
        return id;
}


int Track::load_defaults(BC_Hash *defaults)
{
        return 0;
}

void Track::equivalent_output(Track *track, double *result)
{
        if(data_type != track->data_type ||
                track_w != track->track_w ||
                track_h != track->track_h ||
                play != track->play ||
                nudge != track->nudge)
                *result = 0;

// Convert result to track units
        int64_t result2 = -1;
        automation->equivalent_output(track->automation, &result2);
        edits->equivalent_output(track->edits, &result2);

        int plugin_sets = MIN(plugin_set.total, track->plugin_set.total);
// Test existing plugin sets
        for(int i = 0; i < plugin_sets; i++)
        {
                plugin_set.values[i]->equivalent_output(
                        track->plugin_set.values[i], 
                        &result2);
        }

// New EDL has more plugin sets.  Get starting plugin in new plugin sets
        for(int i = plugin_sets; i < plugin_set.total; i++)
        {
                Plugin *current = plugin_set.values[i]->get_first_plugin();
                if(current)
                {
                        if(result2 < 0 || current->startproject < result2)
                                result2 = current->startproject;
                }
        }

// New EDL has fewer plugin sets.  Get starting plugin in old plugin set
        for(int i = plugin_sets; i < track->plugin_set.total; i++)
        {
                Plugin *current = track->plugin_set.values[i]->get_first_plugin();
                if(current)
                {
                        if(result2 < 0 || current->startproject < result2)
                                result2 = current->startproject;
                }
        }

// Number of plugin sets differs but somehow we didn't find the start of the
// change.  Assume 0
        if(track->plugin_set.total != plugin_set.total && result2 < 0)
                result2 = 0;

        if(result2 >= 0 && 
                (*result < 0 || from_units(result2) < *result))
                *result = from_units(result2);
}


int Track::is_synthesis(RenderEngine *renderengine, 
        int64_t position, 
        int direction)
{
        int is_synthesis = 0;
        for(int i = 0; i < plugin_set.total; i++)
        {
                Plugin *plugin = get_current_plugin(position,
                        i,
                        direction,
                        0,
                        0);
                if(plugin)
                {
// Assume data from a shared track is synthesized
                        if(plugin->plugin_type == PLUGIN_SHAREDMODULE) 
                                is_synthesis = 1;
                        else
                                is_synthesis = plugin->is_synthesis(renderengine, 
                                        position, 
                                        direction);
                        if(is_synthesis) break;
                }
        }
        return is_synthesis;
}

void Track::copy_from(Track *track)
{
        copy_settings(track);
        edits->copy_from(track->edits);
        for(int i = 0; i < this->plugin_set.total; i++)
                delete this->plugin_set.values[i];
        this->plugin_set.remove_all_objects();

        for(int i = 0; i < track->plugin_set.total; i++)
        {
                PluginSet *new_plugin_set = plugin_set.append(new PluginSet(edl, this));
                new_plugin_set->copy_from(track->plugin_set.values[i]);
        }
        automation->copy_from(track->automation);
        this->track_w = track->track_w;
        this->track_h = track->track_h;
}

Track& Track::operator=(Track& track)
{
printf("Track::operator= 1\n");
        copy_from(&track);
        return *this;
}

int Track::vertical_span(Theme *theme)
{
        int result = 0;
        if(expand_view)
                result = edl->local_session->zoom_track + 
                        plugin_set.total * 
                        theme->get_image("plugin_bg_data")->get_h();
        else
                result = edl->local_session->zoom_track;

        if(edl->session->show_titles)
                result += theme->get_image("title_bg_data")->get_h();

        return result;
}

double Track::get_length()
{
        double total_length = 0;
        double length = 0;

// Test edits
        int64_t unit_end;
        unit_end = edits->last->startproject;
        if (edits->last->transition)
                unit_end += edits->last->transition->length + 1; // add one so transition is finished...
        length = from_units(unit_end);
        if(length > total_length) total_length = length;

// Test plugins
        for(int i = 0; i < plugin_set.total; i++)
        {
                length = from_units(plugin_set.values[i]->last->startproject);
                if(length > total_length) total_length = length;
        }

// Test keyframes
        length = from_units(automation->get_length());
        if(length > total_length) total_length = length;
        

        return total_length;
}



void Track::get_source_dimensions(double position, int &w, int &h)
{
        int64_t native_position = to_units(position, 0);
        for(Edit *current = edits->first; current; current = NEXT)
        {
                if(current->startproject <= native_position &&
                        current->startproject + current->length > native_position &&
                        current->asset)
                {
                        w = current->asset->width;
                        h = current->asset->height;
                        return;
                }
        }
}


int64_t Track::horizontal_span()
{
        return (int64_t)(get_length() * 
                edl->session->sample_rate / 
                edl->local_session->zoom_sample + 
                0.5);
}


int Track::load(FileXML *file, int track_offset, uint32_t load_flags)
{
        int result = 0;
        int current_channel = 0;
        int current_plugin = 0;


        record = file->tag.get_property("RECORD", record);
        play = file->tag.get_property("PLAY", play);
        gang = file->tag.get_property("GANG", gang);
        draw = file->tag.get_property("DRAW", draw);
        nudge = file->tag.get_property("NUDGE", nudge);
        expand_view = file->tag.get_property("EXPAND", expand_view);
        track_w = file->tag.get_property("TRACK_W", track_w);
        track_h = file->tag.get_property("TRACK_H", track_h);

        load_header(file, load_flags);

        do{
                result = file->read_tag();

                if(!result)
                {
                        if(file->tag.title_is("/TRACK"))
                        {
                                result = 1;
                        }
                        else
                        if(file->tag.title_is("TITLE"))
                        {
                                file->read_text_until("/TITLE", title, BCTEXTLEN);
                        }
                        else
                        if(load_flags && automation->load(file)
                        /* strstr(file->tag.get_title(), "AUTOS") */)
                        {
                                ;
                        }
                        else
                        if(file->tag.title_is("EDITS"))
                        {
                                if(load_flags & LOAD_EDITS)
                                        edits->load(file, track_offset);
                        }
                        else
                        if(file->tag.title_is("PLUGINSET"))
                        {
                                if(load_flags & LOAD_EDITS)
                                {
                                        PluginSet *plugin_set = new PluginSet(edl, this);
                                        this->plugin_set.append(plugin_set);
                                        plugin_set->load(file, load_flags);
                                }
                                else
                                if(load_flags & LOAD_AUTOMATION)
                                {
                                        if(current_plugin < this->plugin_set.total)
                                        {
                                                PluginSet *plugin_set = this->plugin_set.values[current_plugin];
                                                plugin_set->load(file, load_flags);
                                                current_plugin++;
                                        }
                                }
                        }
                        else
                                load_derived(file, load_flags);
                }
        }while(!result);



        return 0;
}

void Track::insert_asset(Asset *asset, 
                double length, 
                double position, 
                int track_number)
{
//printf("Track::insert_asset %f\n", length);
        edits->insert_asset(asset, 
                to_units(length, 1), 
                to_units(position, 0), 
                track_number);
        edits->loaded_length += to_units(length, 1);
}

// Insert data

// Default keyframes: We don't replace default keyframes in pasting but
// when inserting the first EDL of a load operation we need to replace
// the default keyframes.

// Plugins:  This is an arbitrary behavior
//
// 1) No plugin in source track: Paste silence into destination
// plugin sets.
// 2) Plugin in source track: plugin in source track is inserted into
// existing destination track plugin sets, new sets being added when
// necessary.

void Track::insert_track(Track *track, 
        double position, 
        int replace_default,
        int edit_plugins)
{

// Decide whether to copy settings based on load_mode
        if(replace_default) copy_settings(track);

        edits->insert_edits(track->edits, to_units(position, 0));

        if(edit_plugins)
                insert_plugin_set(track, position);

        automation->insert_track(track->automation, 
                to_units(position, 0), 
                to_units(track->get_length(), 1),
                replace_default);

        optimize();

}

// Called by insert_track
void Track::insert_plugin_set(Track *track, double position)
{
// Extend plugins if no incoming plugins
        if(!track->plugin_set.total)
        {
                shift_effects(position, 
                        track->get_length(), 
                        1);
        }
        else
        for(int i = 0; i < track->plugin_set.total; i++)
        {
                if(i >= plugin_set.total)
                        plugin_set.append(new PluginSet(edl, this));

                plugin_set.values[i]->insert_edits(track->plugin_set.values[i], 
                        to_units(position, 0));
        }
}


Plugin* Track::insert_effect(char *title, 
                SharedLocation *shared_location, 
                KeyFrame *default_keyframe,
                PluginSet *plugin_set,
                double start,
                double length,
                int plugin_type)
{
        if(!plugin_set)
        {
                plugin_set = new PluginSet(edl, this);
                this->plugin_set.append(plugin_set);
        }

        Plugin *plugin = 0;

// Position is identical to source plugin
        if(plugin_type == PLUGIN_SHAREDPLUGIN)
        {
                Track *source_track = tracks->get_item_number(shared_location->module);
                if(source_track)
                {
                        Plugin *source_plugin = source_track->get_current_plugin(
                                edl->local_session->get_selectionstart(), 
                                shared_location->plugin, 
                                PLAY_FORWARD, 
                                1,
                                0);

// From an attach operation
                        if(source_plugin)
                        {
                                plugin = plugin_set->insert_plugin(title, 
                                        source_plugin->startproject, 
                                        source_plugin->length,
                                        plugin_type, 
                                        shared_location,
                                        default_keyframe,
                                        1);
                        }
                        else
// From a drag operation
                        {
                                plugin = plugin_set->insert_plugin(title, 
                                        to_units(start, 0), 
                                        to_units(length, 1),
                                        plugin_type, 
                                        shared_location,
                                        default_keyframe,
                                        1);
                        }
                }
        }
        else
        {
// This should be done in the caller
                if(EQUIV(length, 0))
                {
                        if(edl->local_session->get_selectionend() > 
                                edl->local_session->get_selectionstart())
                        {
                                start = edl->local_session->get_selectionstart();
                                length = edl->local_session->get_selectionend() - start;
                        }
                        else
                        {
                                start = 0;
                                length = get_length();
                        }
                }
//printf("Track::insert_effect %f %f %d %d\n", start, length, to_units(start, 0), 
//                      to_units(length, 0));

                plugin = plugin_set->insert_plugin(title, 
                        to_units(start, 0), 
                        to_units(length, 1),
                        plugin_type, 
                        shared_location,
                        default_keyframe,
                        1);
        }
//printf("Track::insert_effect 2 %f %f\n", start, length);

        expand_view = 1;
        return plugin;
}

void Track::move_plugins_up(PluginSet *plugin_set)
{
        for(int i = 0; i < this->plugin_set.total; i++)
        {
                if(this->plugin_set.values[i] == plugin_set)
                {
                        if(i == 0) break;

                        PluginSet *temp = this->plugin_set.values[i - 1];
                        this->plugin_set.values[i - 1] = this->plugin_set.values[i];
                        this->plugin_set.values[i] = temp;

                        SharedLocation old_location, new_location;
                        new_location.module = old_location.module = tracks->number_of(this);
                        old_location.plugin = i;
                        new_location.plugin = i - 1;
                        tracks->change_plugins(old_location, new_location, 1);
                        break;
                }
        }
}

void Track::move_plugins_down(PluginSet *plugin_set)
{
        for(int i = 0; i < this->plugin_set.total; i++)
        {
                if(this->plugin_set.values[i] == plugin_set)
                {
                        if(i == this->plugin_set.total - 1) break;

                        PluginSet *temp = this->plugin_set.values[i + 1];
                        this->plugin_set.values[i + 1] = this->plugin_set.values[i];
                        this->plugin_set.values[i] = temp;

                        SharedLocation old_location, new_location;
                        new_location.module = old_location.module = tracks->number_of(this);
                        old_location.plugin = i;
                        new_location.plugin = i + 1;
                        tracks->change_plugins(old_location, new_location, 1);
                        break;
                }
        }
}


void Track::remove_asset(Asset *asset)
{
        for(Edit *edit = edits->first; edit; edit = edit->next)
        {
                if(edit->asset && edit->asset == asset)
                {
                        edit->asset = 0;
                }
        }
        optimize();
}

void Track::remove_pluginset(PluginSet *plugin_set)
{
        int i;
        for(i = 0; i < this->plugin_set.total; i++)
                if(plugin_set == this->plugin_set.values[i]) break;

        this->plugin_set.remove_object(plugin_set);
        for(i++ ; i < this->plugin_set.total; i++)
        {
                SharedLocation old_location, new_location;
                new_location.module = old_location.module = tracks->number_of(this);
                old_location.plugin = i;
                new_location.plugin = i - 1;
                tracks->change_plugins(old_location, new_location, 0);
        }
}

void Track::shift_keyframes(double position, double length, int convert_units)
{
        if(convert_units)
        {
                position = to_units(position, 0);
                length = to_units(length, 1);
        }

        automation->paste_silence(Units::to_int64(position), 
                Units::to_int64(position + length));
// Effect keyframes are shifted in shift_effects
}

void Track::shift_effects(double position, double length, int convert_units)
{
        if(convert_units)
        {
                position = to_units(position, 0);
                length = to_units(length, 1);
        }

        for(int i = 0; i < plugin_set.total; i++)
        {
                plugin_set.values[i]->shift_effects(Units::to_int64(position), Units::to_int64(length));
        }
}

void Track::detach_effect(Plugin *plugin)
{
//printf("Track::detach_effect 1\n");           
        for(int i = 0; i < plugin_set.total; i++)
        {
                PluginSet *plugin_set = this->plugin_set.values[i];
                for(Plugin *dest = (Plugin*)plugin_set->first; 
                        dest; 
                        dest = (Plugin*)dest->next)
                {
                        if(dest == plugin)
                        {
                                int64_t start = plugin->startproject;
                                int64_t end = plugin->startproject + plugin->length;

                                plugin_set->clear(start, end);
                                plugin_set->paste_silence(start, end);

// Delete 0 length pluginsets   
                                plugin_set->optimize();
//printf("Track::detach_effect 2 %d\n", plugin_set->length());
                                if(plugin_set->last == plugin_set->first && plugin_set->last->silence())
                                        remove_pluginset(plugin_set);
                                return;
                        }
                }
        }
}

void Track::resample(double old_rate, double new_rate)
{
        edits->resample(old_rate, new_rate);
        automation->resample(old_rate, new_rate);
        for(int i = 0; i < plugin_set.total; i++)
                plugin_set.values[i]->resample(old_rate, new_rate);
        nudge = (int64_t)(nudge * new_rate / old_rate);
}

void Track::detach_shared_effects(int module)
{
        for(int i = 0; i < plugin_set.total; i++)
        {
                PluginSet *plugin_set = this->plugin_set.values[i];
                for(Plugin *dest = (Plugin*)plugin_set->first; 
                        dest; 
                        dest = (Plugin*)dest->next)
                {
                        if ((dest->plugin_type == PLUGIN_SHAREDPLUGIN ||
                                dest->plugin_type == PLUGIN_SHAREDMODULE)
                            &&
                                dest->shared_location.module == module)
                        {
                                int64_t start = dest->startproject;
                                int64_t end = dest->startproject + dest->length;

                                plugin_set->clear(start, end);
                                plugin_set->paste_silence(start, end);

// Delete 0 length pluginsets   
                                plugin_set->optimize();
                                if(plugin_set->last == plugin_set->first && plugin_set->last->silence())
                                {
                                        this->plugin_set.remove_object_number(i);
                                        --i;
                                }
                        }
                }
        }
}


void Track::optimize()
{
        edits->optimize();
        for(int i = 0; i < plugin_set.total; i++)
        {
                PluginSet *plugin_set = this->plugin_set.values[i];
                plugin_set->optimize();
//printf("Track::optimize %d\n", plugin_set.values[i]->total());
// new definition of empty track...
                if(plugin_set->last == plugin_set->first && plugin_set->last->silence())
                {
                        remove_pluginset(plugin_set);
                        i--;
                }
        }
}

Plugin* Track::get_current_plugin(double position, 
        int plugin_set, 
        int direction, 
        int convert_units,
        int use_nudge)
{
        Plugin *current;
        if(convert_units) position = to_units(position, 0);
        if(use_nudge) position += nudge;
        
        if(plugin_set >= this->plugin_set.total || plugin_set < 0) return 0;

//printf("Track::get_current_plugin 1 %d %d %d\n", position, this->plugin_set.total, direction);
        if(direction == PLAY_FORWARD)
        {
                for(current = (Plugin*)this->plugin_set.values[plugin_set]->last; 
                        current; 
                        current = (Plugin*)PREVIOUS)
                {
// printf("Track::get_current_plugin 2 %d %ld %ld\n", 
// current->startproject, 
// current->startproject + current->length, 
// position);
                        if(current->startproject <= position && 
                                current->startproject + current->length > position)
                        {
                                return current;
                        }
                }
        }
        else
        if(direction == PLAY_REVERSE)
        {
                for(current = (Plugin*)this->plugin_set.values[plugin_set]->first; 
                        current; 
                        current = (Plugin*)NEXT)
                {
                        if(current->startproject < position && 
                                current->startproject + current->length >= position)
                        {
                                return current;
                        }
                }
        }

        return 0;
}

Plugin* Track::get_current_transition(double position, 
        int direction, 
        int convert_units,
        int use_nudge)
{
        Edit *current;
        Plugin *result = 0;
        if(convert_units) position = to_units(position, 0);
        if(use_nudge) position += nudge;

        if(direction == PLAY_FORWARD)
        {
                for(current = edits->last; current; current = PREVIOUS)
                {
                        if(current->startproject <= position && current->startproject + current->length > position)
                        {
//printf("Track::get_current_transition %p\n", current->transition);
                                if(current->transition && position < current->startproject + current->transition->length)
                                {
                                        result = current->transition;
                                        break;
                                }
                        }
                }
        }
        else
        if(direction == PLAY_REVERSE)
        {
                for(current = edits->first; current; current = NEXT)
                {
                        if(current->startproject < position && current->startproject + current->length >= position)
                        {
                                if(current->transition && position <= current->startproject + current->transition->length)
                                {
                                        result = current->transition;
                                        break;
                                }
                        }
                }
        }

        return result;
}

void Track::synchronize_params(Track *track)
{
        for(Edit *this_edit = edits->first, *that_edit = track->edits->first;
                this_edit && that_edit;
                this_edit = this_edit->next, that_edit = that_edit->next)
        {
                this_edit->synchronize_params(that_edit);
        }

        for(int i = 0; i < plugin_set.total && i < track->plugin_set.total; i++)
                plugin_set.values[i]->synchronize_params(track->plugin_set.values[i]);

        automation->copy_from(track->automation);
        this->nudge = track->nudge;
}





int Track::dump()
{
        printf("   Data type %d\n", data_type);
        printf("   Title %s\n", title);
        printf("   Edits:\n");
        for(Edit* current = edits->first; current; current = NEXT)
        {
                current->dump();
        }
        automation->dump();
        printf("   Plugin Sets: %d\n", plugin_set.total);

        for(int i = 0; i < plugin_set.total; i++)
                plugin_set.values[i]->dump();
//printf("Track::dump 2\n");
        return 0;
}





















Track::Track() : ListItem<Track>()
{
        y_pixel = 0;
}

// ======================================== accounting

int Track::number_of() 
{ 
        return tracks->number_of(this); 
}





        
        






// ================================================= editing

int Track::select_auto(AutoConf *auto_conf, int cursor_x, int cursor_y)
{
        return 0;
}

int Track::move_auto(AutoConf *auto_conf, int cursor_x, int cursor_y, int shift_down)
{
        return 0;
}

int Track::release_auto()
{
        return 0;
}

// used for copying automation alone
int Track::copy_automation(double selectionstart, 
        double selectionend, 
        FileXML *file,
        int default_only,
        int autos_only)
{
        int64_t start = to_units(selectionstart, 0);
        int64_t end = to_units(selectionend, 1);

        file->tag.set_title("TRACK");
// Video or audio
    save_header(file);
        file->append_tag();
        file->append_newline();

        automation->copy(start, end, file, default_only, autos_only);

        if(edl->session->auto_conf->plugins)
        {
                file->tag.set_title("PLUGINSETS");
                file->append_tag();
                file->append_newline();
                for(int i = 0; i < plugin_set.total; i++)
                {
                
                        plugin_set.values[i]->copy_keyframes(start, 
                                end, 
                                file, 
                                default_only,
                                autos_only);
                }
                file->tag.set_title("/PLUGINSETS");
                file->append_tag();
                file->append_newline();
        }

        file->tag.set_title("/TRACK");
        file->append_tag();
        file->append_newline();
        file->append_newline();
        file->append_newline();
        file->append_newline();

        return 0;
}

int Track::paste_automation(double selectionstart, 
        double total_length, 
        double frame_rate,
        int64_t sample_rate,
        FileXML *file,
        int default_only)
{
// Only used for pasting automation alone.
        int64_t start;
        int64_t length;
        int result;
        double scale;

        if(data_type == TRACK_AUDIO)
                scale = edl->session->sample_rate / sample_rate;
        else
                scale = edl->session->frame_rate / frame_rate;

        total_length *= scale;
        start = to_units(selectionstart, 0);
        length = to_units(total_length, 1);
        result = 0;
//printf("Track::paste_automation 1\n");

        while(!result)
        {
                result = file->read_tag();

                if(!result)
                {
                        if(file->tag.title_is("/TRACK"))
                                result = 1;
                        else
                        if(automation->paste(start, 
                                        length, 
                                        scale,
                                        file,
                                        default_only,
                                        0))
                        /* strstr(file->tag.get_title(), "AUTOS")) */
                        {
                                ;
                        }
                        else
                        if(file->tag.title_is("PLUGINSETS"))
                        {
//printf("Track::paste_automation 2 %d\n", current_pluginset);
                                PluginSet::paste_keyframes(start, 
                                        length, 
                                        file,
                                        default_only,
                                        this);
                        }
                }
        }
//printf("Track::paste_automation 3\n");
        

        return 0;
}

void Track::clear_automation(double selectionstart, 
        double selectionend, 
        int shift_autos,
        int default_only)
{
        int64_t start = to_units(selectionstart, 0);
        int64_t end = to_units(selectionend, 1);

        automation->clear(start, end, edl->session->auto_conf, 0);

        if(edl->session->auto_conf->plugins)
        {
                for(int i = 0; i < plugin_set.total; i++)
                {
                        plugin_set.values[i]->clear_keyframes(start, end);
                }
        }

}

void Track::straighten_automation(double selectionstart, 
        double selectionend)
{
        int64_t start = to_units(selectionstart, 0);
        int64_t end = to_units(selectionend, 1);

        automation->straighten(start, end, edl->session->auto_conf);
}




int Track::copy(double start, 
        double end, 
        FileXML *file, 
        char *output_path)
{
// Use a copy of the selection in converted units
// So copy_automation doesn't reconvert.
        int64_t start_unit = to_units(start, 0);
        int64_t end_unit = to_units(end, 1);




        file->tag.set_title("TRACK");
        file->tag.set_property("RECORD", record);
        file->tag.set_property("NUDGE", nudge);
        file->tag.set_property("PLAY", play);
        file->tag.set_property("GANG", gang);
        file->tag.set_property("DRAW",