4 * Copyright (C) 2008-2013 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 #include "amodule.inc"
35 #include "aplugin.inc"
40 #include "filexml.inc"
41 #include "floatautos.inc"
42 #include "maxchannels.h"
45 #include "samples.inc"
46 #include "sharedlocation.inc"
50 class AModuleResample : public Resample
53 AModuleResample(AModule *module);
56 // All positions are in source sample rate
57 int read_samples(Samples *buffer, int64_t start, int64_t len);
60 // output for nested EDL if resampled
61 Samples *nested_output[MAX_CHANNELS];
62 // number of samples allocated
63 int nested_allocation;
66 class AModule : public Module
69 AModule(RenderEngine *renderengine,
70 CommonRender *commonrender,
71 PluginArray *plugin_array,
75 void create_objects();
78 int import_samples(AEdit *playable_edit,
79 int64_t start_project,
80 int64_t edit_startproject,
81 int64_t edit_startsource,
85 int64_t fragment_len);
88 int render(Samples *buffer,
90 int64_t input_position,
94 int get_buffer_size();
96 AttachmentPoint* new_attachment(Plugin *plugin);
101 // synchronization with tracks
102 FloatAutos* get_pan_automation(int channel); // get pan automation
103 FloatAutos* get_fade_automation(); // get the fade automation for this module
106 double *level_history;
107 int64_t *level_samples;
110 // Temporary buffer for rendering transitions
111 Samples *transition_temp;
112 // Temporary buffer for rendering speed curve
114 // Previous buffers for rendering speed curve
115 #define SPEED_OVERLAP 4
116 double prev_head[SPEED_OVERLAP];
117 double prev_tail[SPEED_OVERLAP];
119 // Pointer to an asset for the resampler
121 // Channel to import from the source
123 // File being read if source is a file.
126 // Temporary buffer for rendering a nested audio EDL.
127 // Sharing nested output between modules wouldn't work because if the
128 // segment was cut inside input_len, the shared channels would have to
129 // initialize their EDL's at different starting points and botch their
131 Samples *nested_output[MAX_CHANNELS];
132 // number of samples allocated
133 int nested_allocation;
134 // resampling for nested output
135 AModuleResample *resample;