From 1c5a71ecbacdc7bbae608d6d34ca836929d09d4b Mon Sep 17 00:00:00 2001
From: Comment <tim@gray.(none)>
Date: Sun, 20 Oct 2013 17:20:53 -0700
Subject: automatic reuse of source index files

---
 rotord/src/libavwrapper.cpp | 29 +++++++++++++++++++++++++++--
 rotord/src/libavwrapper.h   |  2 ++
 2 files changed, 29 insertions(+), 2 deletions(-)

(limited to 'rotord/src')

diff --git a/rotord/src/libavwrapper.cpp b/rotord/src/libavwrapper.cpp
index d9207bb..26523fc 100644
--- a/rotord/src/libavwrapper.cpp
+++ b/rotord/src/libavwrapper.cpp
@@ -32,7 +32,32 @@ void libav::maybeInitFFMpegLib()
 bool libav::video_decoder::open(const std::string& filename){
     Mutex::ScopedLock lock(mutex);
     loaded=false;
-    FFMS_Index *index = FFMS_MakeIndex(filename.c_str(), 0, 0, NULL, NULL, FFMS_IEH_IGNORE, NULL, NULL, &err);
+
+    //first check if an index object exists
+    Poco::StringTokenizer tokens(filename,".");
+    string idxfile="";
+    for (int i=0;i<tokens.count()-1;i++){
+        idxfile+=tokens[i];
+        idxfile+=".";
+    }
+    idxfile+="idx";
+    Poco::File f=Poco::File(idxfile);
+    bool makeindex=true;
+    FFMS_Index *index;
+    if (f.exists()) {
+        index=FFMS_ReadIndex(idxfile.c_str(),&err);
+        if (index) {
+            cerr<<"FFMS2: loaded index "<<idxfile<<endl;
+            if (FFMS_IndexBelongsToFile(index,filename.c_str(),&err)==0){        
+                makeindex=false;
+            }
+        }
+    }
+    if (makeindex) {
+        cerr<<"FFMS2: created index "<<idxfile<<endl;
+        index = FFMS_MakeIndex(filename.c_str(), 0, 0, NULL, NULL, FFMS_IEH_IGNORE, NULL, NULL, &err);
+        FFMS_WriteIndex(idxfile.c_str(),index,&err);
+    }
     if (index == NULL) {
         std::cerr<<"ffmpegsource: "<<err.Buffer<<std::endl;
         return false;
@@ -61,7 +86,7 @@ bool libav::video_decoder::open(const std::string& filename){
     int framenumber = 0; /* valid until next call to FFMS_GetFrame* on the same video object */
     
     
-    std::cerr<<"ffmpegsource: successfully opened "<<filename<<std::endl;
+    //std::cerr<<"ffmpegsource: successfully opened "<<filename<<std::endl;
     loaded=true;
     return loaded;
 }
diff --git a/rotord/src/libavwrapper.h b/rotord/src/libavwrapper.h
index bf073fc..0de9e74 100644
--- a/rotord/src/libavwrapper.h
+++ b/rotord/src/libavwrapper.h
@@ -8,6 +8,8 @@
 
 #include "Poco/Mutex.h"
 #include "Poco/ScopedLock.h"
+#include "Poco/StringTokenizer.h"
+#include "Poco/File.h"
 
 extern "C" {
 #include <libavcodec/avcodec.h>
-- 
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