Changeset 6057 in orxonox.OLD for branches/avi_play/src/lib

Timestamp:

Dec 12, 2005, 1:07:57 AM (19 years ago)

Author:

hdavid

Message:

branches\avi_play: MediaContainer opens a videofile and prints some information

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

@@ -42 +42 @@
   current_frame = 0;
   num_frames = 0;
+        frames_left = true;
 
   if (filename != NULL)
@@ -77 +78 @@
 SDL_Surface* MediaContainer::getFrame(int frame_number)
 {
-  SDL_Surface* frame;
-
-
-  return frame;
+
 }
 
 SDL_Surface* MediaContainer::getNextFrame()
 {
-  current_frame++;
-  return this->getFrame(current_frame);
+        /* get next frame */
+        if(av_read_frame(format_context, &packet) >= 0)
+        {
+                frames_left = true;
+                current_frame++;
+                PRINTF(1)("current_frame: %i\n", current_frame);
+
+
+                /* work with the frame */
+                /* packet -> SDL_Surface */
+
+
+
+
+        }
+        else
+                frames_left = false;
+
 }
 
@@ -136 +150 @@
 int MediaContainer::getHeight()
 {
-
+        return codec_context->height;
 }
 
 int MediaContainer::getWidth()
 {
-
+        return codec_context->width;
 }
 
@@ -153 +167 @@
 
 }
+
+bool MediaContainer::framesLeft()
+{
+        return frames_left;
+}
+
+void MediaContainer::printMediaInformation()
+{
+        PRINTF(1)("========================\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("=    MEDIACONTAINER    =\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("=    AVFormatContext   =\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("filename: %s\n", format_context->filename);
+        PRINTF(1)("nb_streams: %i\n", format_context->nb_streams);
+        PRINTF(1)("duration: %fs\n", format_context->duration/1000000.);
+        PRINTF(1)("file_size: %ikb\n", format_context->file_size/1024);
+        PRINTF(1)("bit_rate: %ikb/s\n", format_context->bit_rate/1000);
+        PRINTF(1)("nb_frames: %i\n", format_context->streams[video_stream]->nb_frames);
+        //PRINTF(1)("r_frame_rate: %ifps\n", format_context->streams[video_stream]->r_frame_rate.num);
+        PRINTF(1)("========================\n");
+        PRINTF(1)("=    AVCodecContext    =\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("width: %i\n", codec_context->width);
+        PRINTF(1)("height: %i\n", codec_context->height);
+        PRINTF(1)("========================\n");
+        PRINTF(1)("=       AVCodec        =\n");
+        PRINTF(1)("========================\n");
+        PRINTF(1)("codec name: %s\n", codec->name);
+        PRINTF(1)("========================\n");
+        PRINTF(1)("========================\n");
+}

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

@@ -32 +32 @@
 private:
 
-        char* filename;
         int current_frame;
         int num_frames;
@@ -44 +43 @@
         int num_bytes;
         int video_stream;
+        bool frames_left;
 
 public:
@@ -61 +61 @@
         void getStream(/* stream */);
 
+        bool framesLeft();
+
+        /* prints some information about the
+           media file for debug reasons */
+        void printMediaInformation();
+
 };