4 * Copyright (C) 2009 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
23 #include "bcsignals.h"
26 #include "edlsession.h"
30 #include "playabletracks.h"
31 #include "preferences.h"
32 #include "mainsession.h"
33 #include "trackcanvas.h"
35 #include "transportque.h"
42 VEdit::VEdit(EDL *edl, Edits *edits)
50 int VEdit::load_properties_derived(FileXML *xml)
52 channel = xml->tag.get_property("CHANNEL", (int64_t)0);
56 Asset* VEdit::get_nested_asset(int64_t *source_position,
57 int64_t position, int direction)
59 double edit_frame_rate = nested_edl ?
60 nested_edl->session->frame_rate : asset->frame_rate;
61 // Make position relative to edit
62 double edit_position = (position - startproject + startsource) *
63 edit_frame_rate / edl->session->frame_rate;
64 *source_position = Units::to_int64(edit_position);
65 if( !nested_edl ) return asset;
67 // Descend into nested EDLs
68 PlayableTracks playable_tracks(nested_edl,
69 *source_position, direction, TRACK_VIDEO, 1);
70 if( !playable_tracks.size() ) return 0;
71 VTrack *nested_track = (VTrack*)playable_tracks[0];
72 VEdit* nested_edit = (VEdit*)nested_track->edits->
73 editof(*source_position, direction, 1);
74 if( !nested_edit ) return 0;
75 return nested_edit->get_nested_asset(source_position,
76 *source_position, direction);
79 int VEdit::read_frame(VFrame *video_out, int64_t input_position, int direction,
80 CICache *cache, int use_nudge, int use_cache, int use_asynchronous)
84 int64_t source_position = 0;
87 if(use_nudge) input_position += track->nudge;
88 if(debug) printf("VEdit::read_frame %d source_position=%jd input_position=%jd\n",
89 __LINE__, source_position, input_position);
91 Asset *asset = get_nested_asset(&source_position, input_position, direction);
92 if( !asset ) result = 1;
94 if(debug) printf("VEdit::read_frame %d source_position=%jd input_position=%jd\n",
95 __LINE__, source_position, input_position);
98 file = cache->check_out(asset, edl);
99 if( !file ) result = 1;
101 if(debug) printf("VEdit::read_frame %d path=%s source_position=%jd\n",
102 __LINE__, asset->path, source_position);
105 if(direction == PLAY_REVERSE && source_position > 0)
108 file->start_video_decode_thread();
110 file->stop_video_thread();
111 if(debug) printf("VEdit::read_frame %d\n", __LINE__);
113 file->set_layer(channel);
114 //printf("VEdit::read_frame %d %lld\n", __LINE__, source_position);
115 file->set_video_position(source_position, 0);
117 if(use_cache) file->set_cache_frames(use_cache);
118 result = file->read_frame(video_out);
119 if(debug) printf("VEdit::read_frame %d\n", __LINE__);
120 if(use_cache) file->set_cache_frames(0);
122 if(debug) printf("VEdit::read_frame %d\n", __LINE__);
123 cache->check_in(asset);
124 if(debug) printf("VEdit::read_frame %d\n", __LINE__);
127 //for(int i = 0; i < video_out->get_w() * 3 * 20; i++) video_out->get_rows()[0][i] = 128;
131 int VEdit::copy_properties_derived(FileXML *xml, int64_t length_in_selection)
136 int VEdit::dump_derived()
138 printf(" VEdit::dump_derived\n");
139 printf(" startproject %jd\n", startproject);
140 printf(" length %jd\n", length);
144 int64_t VEdit::get_source_end(int64_t default_)
146 if(!nested_edl && !asset) return default_; // Infinity
150 return (int64_t)(nested_edl->tracks->total_length() *
151 edl->session->frame_rate + 0.5);
154 return (int64_t)((double)asset->video_length /
156 edl->session->frame_rate + 0.5);