Changeset 6003 in orxonox.OLD for branches/avi_play/src/lib/graphics/importer

Timestamp:

Dec 9, 2005, 6:07:05 PM (19 years ago)

Author:

hdavid

Message:

branches/avi_play: some init stuff

Location:

branches/avi_play/src/lib/graphics/importer

Files:

• media_container.cc (modified) (4 diffs)
• media_container.h (modified) (3 diffs)

branches/avi_play/src/lib/graphics/importer/media_container.cc

@@ -40 +40 @@
   av_register_all();
 
+        current_frame = 0;
+        num_frames = 0;
+
   if (filename != NULL)
     this->loadMedia(filename);
@@ -50 +53 @@
 MediaContainer::~MediaContainer()
 {
+        //av_free(pFrameRGB);
+
+        /* Free the frame */
+  av_free(frame);
+
+  /* Close the codec */
+  avcodec_close(codec_context);
+
+  /* Close the video file */
+  av_close_input_file(format_context);
 
 }
 
-GLuint MediaContainer::getFrame(int frame_number)
+/*GLuint MediaContainer::getFrame(int frame_number)
 {
 
@@ -61 +74 @@
 {
 
+}*/
+
+SDL_Surface* MediaContainer::getFrame(int frame_number)
+{
+        SDL_Surface* frame;
+        
+
+        return frame;
+}
+
+SDL_Surface* MediaContainer::getNextFrame()
+{
+        current_frame++;
+        return this->getFrame(current_frame);
 }
 
@@ -68 +95 @@
   if (av_open_input_file(&format_context, filename, NULL, 0, NULL) !=0 )
     PRINTF(1)("Could not open %s\n", filename);
+
+        /* Retrieve stream information */
+  if (av_find_stream_info(format_context) < 0)
+        PRINTF(1)("Could not find stream information in %s\n", filename); 
+
+  // Dump information about file onto standard error
+  //dump_format(pFormatCtx, 0, argv[1], false);
+
+  /* Find the first video stream and take it */
+  video_stream = -1;
+  for(int i = 0; i < format_context->nb_streams; i++)
+        {
+                // NOTE: different code for the 0.4.9-pre1 release of ffmpeg (tardis)
+                // if(format_context->streams[i]->codec.codec_type == CODEC_TYPE_VIDEO)         
+        if(format_context->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO)
+    {
+        video_stream = i;
+      break;
+    }
+        }
+  
+        if(video_stream == -1)
+        PRINTF(1)("Could not find a video stream in %s\n", filename);
+
+        /* Get a pointer to the codec context for the video stream */
+        // NOTE: different code for the 0.4.9-pre1 release of ffmpeg (tardis)
+        // codec_context = &format_context->streams[video_stream]->codec;
+  codec_context = format_context->streams[video_stream]->codec;
+
+        /* Find the decoder for the video stream */
+  codec = avcodec_find_decoder(codec_context->codec_id);
+  if (codec == NULL)
+        PRINTF(1)("Could not find codec\n");
+
+        /* Open codec */
+  if (avcodec_open(codec_context, codec) < 0)
+                PRINTF(1)("Could not open codec\n");
+
+        
 
 }

branches/avi_play/src/lib/graphics/importer/media_container.h

@@ -24 +24 @@
 using namespace std;
 
+/* Forward Declaration */
+struct SDL_Surface;
+
 class MediaContainer : public BaseObject
 {
@@ -31 +34 @@
         char* filename;
         int current_frame;
+        int num_frames;
 
         AVFormatContext* format_context;
@@ -46 +50 @@
   ~MediaContainer();
 
-        GLuint getFrame(int frame_number);
-        GLuint getNextFrame();
+        //GLuint getFrame(int frame_number);
+        SDL_Surface* getFrame(int frame_number);
+        //GLuint getNextFrame();
+        SDL_Surface* getNextFrame();
         void loadMedia(const char* filename);