}
-// Returns 1 if frame exists in cache and copies it to the frame argument.
-int FrameCache::get_frame(VFrame *frame,
- int64_t position,
- int layer,
- double frame_rate,
- int source_id)
-{
- lock->lock("FrameCache::get_frame");
- FrameCacheItem *result = 0;
-
- if(frame_exists(frame,
- position,
- layer,
- frame_rate,
- &result,
- source_id))
- {
- if(result->data)
- {
-// Frame may have come from the readahead thread.
-// Those frames are in the codec color model.
-// But to pass frame_exists, they must be identical.
-// BC_CModels::transfer(frame->get_rows(),
-// result->data->get_rows(),
-// result->data->get_y(),
-// result->data->get_u(),
-// result->data->get_v(),
-// frame->get_y(),
-// frame->get_u(),
-// frame->get_v(),
-// 0,
-// 0,
-// result->data->get_w(),
-// result->data->get_h(),
-// 0,
-// 0,
-// frame->get_w(),
-// frame->get_h(),
-// result->data->get_color_model(),
-// frame->get_color_model(),
-// 0,
-// result->data->get_w(),
-// frame->get_w());
-
-// no context data since keyframe updates may vary input
- frame->copy_from(result->data);
- }
- result->age = get_age();
- }
-
-
-
-
- lock->unlock();
- if(result) return 1;
- return 0;
-}
-
-
-VFrame* FrameCache::get_frame_ptr(int64_t position,
- int layer,
- double frame_rate,
- int color_model,
- int w,
- int h,
- int source_id)
+VFrame* FrameCache::get_frame_ptr(int64_t position, int layer, double frame_rate,
+ int color_model, int w, int h, int source_id)
{
lock->lock("FrameCache::get_frame_ptr");
- FrameCacheItem *result = 0;
- if(frame_exists(position,
- layer,
- frame_rate,
- color_model,
- w,
- h,
- &result,
- source_id))
- {
- result->age = get_age();
- return result->data;
- }
-
-
+ VFrame *vframe = get_vframe(position, w, h, color_model,
+ layer, frame_rate, source_id);
+ if( vframe ) return vframe; // not unlocked
lock->unlock();
return 0;
}
-// Puts frame in cache if enough space exists and the frame doesn't already
-// exist.
-void FrameCache::put_frame(VFrame *frame, int64_t position,
- int layer, double frame_rate, int use_copy, Indexable *indexable)
+VFrame *FrameCache::get_vframe(int64_t position, int w, int h,
+ int color_model, int layer, double frame_rate,
+ int source_id)
{
- lock->lock("FrameCache::put_frame");
FrameCacheItem *item = 0;
- int source_id = -1;
- if(indexable) source_id = indexable->id;
-
-//printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
-
- if(frame_exists(frame, position, layer, frame_rate, &item, source_id)) {
+ int ret = frame_exists(position, layer, frame_rate,
+ w, h, color_model, &item, source_id);
+ if( ret && position >= 0 && item )
item->age = get_age();
- lock->unlock();
- return;
- }
+ return ret && item ? item->data : 0;
+}
+VFrame *FrameCache::get_frame(int64_t position, int w, int h,
+ int color_model, int layer, double frame_rate,
+ int source_id)
+{
+ lock->lock("FrameCache::get_frame");
+ VFrame *frame = get_vframe(position, w, h,
+ color_model, layer, frame_rate, source_id);
+ lock->unlock();
+ return frame;
+}
- item = new FrameCacheItem;
+// Returns 1 if frame exists in cache and copies it to the frame argument.
+int FrameCache::get_frame(VFrame *frame, int64_t position,
+ int layer, double frame_rate, int source_id)
+{
+ lock->lock("FrameCache::get_frame");
+ VFrame *vframe = get_vframe(position,
+ frame->get_w(), frame->get_h(), frame->get_color_model(),
+ layer, frame_rate, source_id);
+ if( vframe )
+ frame->copy_from(vframe);
+ lock->unlock();
+ return vframe ? 1 : 0;
+}
- item->data = use_copy ? new VFrame(*frame) : frame;
-// Copy metadata
+void FrameCache::put_vframe(VFrame *frame, int64_t position,
+ int layer, double frame_rate, int source_id)
+{
+ FrameCacheItem *item = new FrameCacheItem;
+ item->data = frame;
item->position = position;
item->layer = layer;
item->frame_rate = frame_rate;
item->source_id = source_id;
- if(indexable)
- item->path = cstrdup(indexable->path);
-
item->age = position < 0 ? INT_MAX : get_age();
-
-//printf("FrameCache::put_frame %d position=%jd\n", __LINE__, position);
put_item(item);
+}
+
+// Puts frame in cache if the frame doesn't already exist.
+void FrameCache::put_frame(VFrame *frame, int64_t position,
+ int layer, double frame_rate, int use_copy, Indexable *idxbl)
+{
+ int source_id = idxbl ? idxbl->id : -1;
+ lock->lock("FrameCache::put_frame");
+ VFrame *vframe = get_vframe(position,
+ frame->get_w(), frame->get_h(), frame->get_color_model(),
+ layer, frame_rate, source_id);
+ if( !vframe ) {
+ if( use_copy ) frame = new VFrame(*frame);
+ put_vframe(frame, position, layer, frame_rate, source_id);
+ }
lock->unlock();
}
-VFrame *FrameCache::new_cache_frame(int64_t position, int w, int h,
- int color_model, int layer, double frame_rate, int first_frame)
+// get vframe for keys, overwrite frame if found
+int FrameCache::get_cache_frame(VFrame *frame, int64_t position,
+ int layer, double frame_rate)
{
+ lock->lock("FrameCache::get_cache_frame");
+ VFrame *vframe = get_vframe(position,
+ frame->get_w(), frame->get_h(), frame->get_color_model(),
+ layer, frame_rate, -1);
+ if( vframe )
+ frame->copy_from(vframe);
+ lock->unlock();
+ return vframe ? 1 : 0;
+}
+
+// adds or replaces vframe, consumes frame if not use_copy
+void FrameCache::put_cache_frame(VFrame *frame, int64_t position,
+ int layer, double frame_rate, int use_copy)
+{
+ lock->lock("FrameCache::put_cache_frame");
FrameCacheItem *item = 0;
- lock->lock("FrameCache::put_vframe");
- if( frame_exists(position, layer, frame_rate, color_model, w, h, &item, -1) ) {
- lock->unlock();
- return 0;
+ int w = frame->get_w(), h = frame->get_h();
+ int color_model = frame->get_color_model();
+ int ret = frame_exists(position, layer, frame_rate,
+ w, h, color_model, &item, -1);
+ if( use_copy ) {
+// do not use shm here, puts too much pressure on 32bit systems
+ VFrame *vframe = new VFrame(w, h, color_model, 0);
+ vframe->copy_from(frame);
+ frame = vframe;
}
- if( first_frame ) {
- while( last ) delete last;
- total_items = 0;
- current_item = 0;
+ if( ret ) {
+ delete item->data;
+ item->data = frame;
}
- item = new FrameCacheItem;
- item->data = new VFrame(w, h, color_model);
- item->position = position;
- item->layer = layer;
- item->frame_rate = frame_rate;
- item->source_id = -1;
- item->age = position < 0 ? INT_MAX : get_age();
- put_item(item);
- return item->data;
-}
-void FrameCache::put_cache_frame()
-{
+ else
+ put_vframe(frame, position, layer, frame_rate, -1);
lock->unlock();
}
+
int FrameCache::frame_exists(VFrame *format, int64_t position,
int layer, double frame_rate, FrameCacheItem **item_return, int source_id)
{
}
int FrameCache::frame_exists(int64_t position, int layer, double frame_rate,
- int color_model, int w, int h, FrameCacheItem **item_return, int source_id)
+ int w, int h, int color_model, FrameCacheItem **item_return, int source_id)
{
FrameCacheItem *item = (FrameCacheItem*)get_item(position);
for( ; item && item->position == position ; item = (FrameCacheItem*)item->next ) {