4 * Copyright (C) 2008 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
22 #include "bcsignals.h"
26 #include "framecache.h"
27 #include "indexable.h"
38 FrameCacheItem::FrameCacheItem()
43 frame_rate = (double)30000.0 / 1001;
46 FrameCacheItem::~FrameCacheItem()
51 int FrameCacheItem::get_size()
53 if(data) return data->get_data_size() + (path ? strlen(path)+1 : 0);
71 FrameCache::FrameCache()
76 FrameCache::~FrameCache()
81 // Returns 1 if frame exists in cache and copies it to the frame argument.
82 int FrameCache::get_frame(VFrame *frame,
88 lock->lock("FrameCache::get_frame");
89 FrameCacheItem *result = 0;
91 if(frame_exists(frame,
100 // Frame may have come from the readahead thread.
101 // Those frames are in the codec color model.
102 // But to pass frame_exists, they must be identical.
103 // BC_CModels::transfer(frame->get_rows(),
104 // result->data->get_rows(),
105 // result->data->get_y(),
106 // result->data->get_u(),
107 // result->data->get_v(),
113 // result->data->get_w(),
114 // result->data->get_h(),
119 // result->data->get_color_model(),
120 // frame->get_color_model(),
122 // result->data->get_w(),
126 frame->copy_from(result->data);
129 // This would have copied the color matrix for interpolate, but
130 // required the same plugin stack as the reader.
131 // frame->copy_stacks(result->data);
132 frame->copy_params(result->data);
134 result->age = get_age();
146 VFrame* FrameCache::get_frame_ptr(int64_t position,
154 lock->lock("FrameCache::get_frame_ptr");
155 FrameCacheItem *result = 0;
156 if(frame_exists(position,
165 result->age = get_age();
174 // Puts frame in cache if enough space exists and the frame doesn't already
176 void FrameCache::put_frame(VFrame *frame,
181 Indexable *indexable)
183 lock->lock("FrameCache::put_frame");
184 FrameCacheItem *item = 0;
186 if(indexable) source_id = indexable->id;
188 //printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
190 if(frame_exists(frame,
197 item->age = get_age();
203 item = new FrameCacheItem;
207 item->data = new VFrame(*frame);
215 item->position = position;
217 item->frame_rate = frame_rate;
218 item->source_id = source_id;
220 item->path = cstrdup(indexable->path);
222 item->age = get_age();
224 //printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
232 int FrameCache::frame_exists(VFrame *format,
236 FrameCacheItem **item_return,
239 FrameCacheItem *item = (FrameCacheItem*)get_item(position);
240 // printf("FrameCache::frame_exists %d item=%p item->position=%jd position=%jd\n",
243 // item ? item->position : 0,
246 while(item && item->position == position)
248 // printf("FrameCache::frame_exists %d %f,%f %d,%d %d,%d format match=%d item->data=%p\n",
256 // format->equivalent(item->data, 1),
258 // format->dump_params();
260 // This originally tested the frame stacks because a change in the
261 // interpolate plugin could cause CR2 to interpolate or not interpolate.
262 // This was disabled.
263 if(EQUIV(item->frame_rate, frame_rate) &&
264 layer == item->layer &&
265 format->equivalent(item->data, 0) &&
266 (source_id == -1 || item->source_id == -1 || source_id == item->source_id))
272 item = (FrameCacheItem*)item->next;
277 int FrameCache::frame_exists(int64_t position,
283 FrameCacheItem **item_return,
286 FrameCacheItem *item = (FrameCacheItem*)get_item(position);
287 while(item && item->position == position)
289 // printf("FrameCache::frame_exists %d %f,%f %d,%d %d,%d %d,%d\n",
295 // item->data->get_color_model(),
297 // item->data->get_w(),
299 // item->data->get_h(),
302 if(EQUIV(item->frame_rate, frame_rate) &&
303 layer == item->layer &&
304 color_model == item->data->get_color_model() &&
305 w == item->data->get_w() &&
306 h == item->data->get_h() &&
307 (source_id == -1 || item->source_id == -1 || source_id == item->source_id))
313 item = (FrameCacheItem*)item->next;
319 void FrameCache::dump()
321 // lock->lock("FrameCache::dump");
322 printf("FrameCache::dump 1 %d\n", total());
323 FrameCacheItem *item = (FrameCacheItem *)first;
325 printf(" position=%jd frame_rate=%f age=%d size=%jd\n",
326 item->position, item->frame_rate, item->age,
327 item->data->get_data_size());
328 item = (FrameCacheItem*)item->next;