From f9694b7d4f1648a0fa984e7cc428bbc9eea86ca0 Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Wed, 11 Sep 2013 16:11:47 +0100
Subject: ffms2 library for video loader

---
 rotord/src/libavwrapper.cpp | 60 +++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 55 insertions(+), 5 deletions(-)

(limited to 'rotord/src/libavwrapper.cpp')

diff --git a/rotord/src/libavwrapper.cpp b/rotord/src/libavwrapper.cpp
index b7b5688..321725e 100644
--- a/rotord/src/libavwrapper.cpp
+++ b/rotord/src/libavwrapper.cpp
@@ -80,8 +80,9 @@ void libav::maybeInitFFMpegLib()
 {
     if (b_is_one_time_inited)
         return;
-    av_register_all();
-    avcodec_register_all();
+    FFMS_Init(0, 0); //should do for all
+    //av_register_all();
+    //avcodec_register_all();
     avformat_network_init();
     b_is_one_time_inited = true;
 }
@@ -556,7 +557,56 @@ bool libav::decoder::avtry(int result, const std::string& msg) {
     return true;
 }
 
+ void libav::ffms2_decoder::cleanup(){
+    if (loaded) {
+        mutex.lock();
+        FFMS_DestroyVideoSource(videosource);
+        mutex.unlock();
+        loaded=false;
+    }
+}
 
+bool libav::ffms2_decoder::open(const std::string& filename){
+    mutex.lock();
+    loaded=false;
+    FFMS_Index *index = FFMS_MakeIndex(filename.c_str(), 0, 0, NULL, NULL, FFMS_IEH_ABORT, NULL, NULL, &errinfo);
+    if (index == NULL) {
+        std::cerr<<"ffmpegsource: "<<errinfo.Buffer<<std::endl;
+        mutex.unlock();
+        return false;
+    }
+    int trackno = FFMS_GetFirstTrackOfType(index, FFMS_TYPE_VIDEO, &errinfo);
+    if (trackno < 0) {
+        std::cerr<<"ffmpegsource: "<<errinfo.Buffer<<std::endl;
+        mutex.unlock();
+        return false;
+    }
+    videosource = FFMS_CreateVideoSource(filename.c_str(), trackno, index, 1, FFMS_SEEK_NORMAL, &errinfo);
+    if (videosource == NULL) {
+        std::cerr<<"ffmpegsource: "<<errinfo.Buffer<<std::endl;
+        mutex.unlock();
+        return false;
+    }
+    FFMS_DestroyIndex(index);
+    videoprops = FFMS_GetVideoProperties(videosource);
+    const FFMS_Frame *propframe = FFMS_GetFrame(videosource, 0, &errinfo);
+    w=propframe->EncodedWidth;
+    h=propframe->EncodedHeight;
+    //propframe->EncodedPixelFormat;
+    
+    if (FFMS_SetOutputFormatV2(videosource, pixfmts, propframe->EncodedWidth, propframe->EncodedHeight, FFMS_RESIZER_BICUBIC, &errinfo)) {
+        std::cerr<<"ffmpegsource: "<<errinfo.Buffer<<std::endl;
+        mutex.unlock();
+        return false;
+    }
+    int framenumber = 0; /* valid until next call to FFMS_GetFrame* on the same video object */
+    
+    
+    std::cerr<<"ffmpegsource: successfully opened "<<filename<<std::endl;
+    loaded=true;
+    mutex.unlock();
+    return loaded;
+}
 
 ///////////////////////////
 // encoder methods //
@@ -1245,7 +1295,7 @@ void libav::exporter::open_video(AVFormatContext *oc, AVCodec *codec, AVStream *
         AVFrame *frame = avcodec_alloc_frame(); 
         int got_packet, ret;
 
-        av_init_packet(&pkt);
+        //av_init_packet(&pkt);  111013 NOT NECESSARY
         c = st->codec;
 
         //get_audio_frame(samples, audio_input_frame_size, c->channels);
@@ -1406,7 +1456,7 @@ void libav::exporter::open_video(AVFormatContext *oc, AVCodec *codec, AVStream *
         if (oc->oformat->flags & AVFMT_RAWPICTURE) {
             // Raw video case - directly store the picture in the packet //
             AVPacket pkt;
-            av_init_packet(&pkt);
+            //av_init_packet(&pkt); ///removed 101013  NOT NECESSARY
 
             pkt.flags        |= AV_PKT_FLAG_KEY;
             pkt.stream_index  = st->index;
@@ -1418,7 +1468,7 @@ void libav::exporter::open_video(AVFormatContext *oc, AVCodec *codec, AVStream *
         } else {
             AVPacket pkt = { 0 };
             int got_packet;
-            av_init_packet(&pkt);
+           //av_init_packet(&pkt); ///removed 101013 NOT NECESSARY
 
             // encode the image //
 
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