Commit: 1678cb9af291c86fda2c5d1b65e6dca7554e3886
Author: Antony Riakiotakis
Date:   Wed Jan 28 11:48:22 2015 +0100
Branches: master
https://developer.blender.org/rB1678cb9af291c86fda2c5d1b65e6dca7554e3886

Fix dreaded black screen for missing proxies - if requested proxy size
is not found, use the original footage instead

===================================================================

M       source/blender/blenkernel/intern/sequencer.c

===================================================================

diff --git a/source/blender/blenkernel/intern/sequencer.c 
b/source/blender/blenkernel/intern/sequencer.c
index 76527d9..903c660 100644
--- a/source/blender/blenkernel/intern/sequencer.c
+++ b/source/blender/blenkernel/intern/sequencer.c
@@ -2758,12 +2758,19 @@ static ImBuf *do_render_strip_uncached(const 
SeqRenderData *context, Sequence *s
                        seq_open_anim_file(seq);
 
                        if (seq->anim) {
+                               IMB_Proxy_Size proxy_size = 
seq_rendersize_to_proxysize(context->preview_render_size);
                                IMB_anim_set_preseek(seq->anim, 
seq->anim_preseek);
 
                                ibuf = IMB_anim_absolute(seq->anim, nr + 
seq->anim_startofs,
                                                         seq->strip->proxy ? 
seq->strip->proxy->tc : IMB_TC_RECORD_RUN,
-                                                        
seq_rendersize_to_proxysize(context->preview_render_size));
+                                                        proxy_size);
 
+                               /* fetching for requested proxy sze failed, try 
fetching the original isntead */
+                               if (!ibuf && proxy_size != IMB_PROXY_NONE) {
+                                       ibuf = IMB_anim_absolute(seq->anim, nr 
+ seq->anim_startofs,
+                                                                
seq->strip->proxy ? seq->strip->proxy->tc : IMB_TC_RECORD_RUN,
+                                                                
IMB_PROXY_NONE);
+                               }
                                if (ibuf) {
                                        
BKE_sequencer_imbuf_to_sequencer_space(context->scene, ibuf, false);

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