libmpcodecs core - initial version

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4879 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 96 insertions, 0 deletions

diff --git a/libmpcodecs/vd.c b/libmpcodecs/vd.c
new file mode 100644
index 0000000000..5ee42d3af6
--- /dev/null
+++ b/libmpcodecs/vd.c
@@ -0,0 +1,96 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "config.h"
+#include "mp_msg.h"
+
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+
+#include "codec-cfg.h"
+//#include "mp_image.h"
+
+#include "../libvo/img_format.h"
+
+#include "stream.h"
+#include "demuxer.h"
+#include "stheader.h"
+
+#include "vd.h"
+//#include "vd_internal.h"
+
+extern vd_functions_t mpcodecs_vd_null;
+
+vd_functions_t* mpcodecs_vd_drivers[] = {
+        &mpcodecs_vd_null,
+	NULL
+};
+
+int mpcodecs_config_vo(sh_video_t *sh, int w, int h, unsigned int preferred_outfmt){
+
+    return 1;
+}
+
+static mp_image_t* static_images[2];
+static mp_image_t* temp_images[1];
+static int static_idx=0;
+
+// mp_imgtype: buffering type, see mp_image.h
+// mp_imgflag: buffer requirements (read/write, preserve, stride limits), see mp_image.h
+// returns NULL or allocated mp_image_t*
+// Note: buffer allocation may be moved to mpcodecs_config_vo() later...
+mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h){
+  mp_image_t* mpi=NULL;
+  // Note: we should call libvo first to check if it supports direct rendering
+  // and if not, then fallback to software buffers:
+  switch(mp_imgtype){
+  case MP_IMGTYPE_EXPORT:
+    mpi=new_mp_image(w,h);
+    break;
+  case MP_IMGTYPE_STATIC:
+    if(!static_images[0]) static_images[0]=new_mp_image(w,h);
+    mpi=static_images[0];
+    break;
+  case MP_IMGTYPE_TEMP:
+    if(!temp_images[0]) temp_images[0]=new_mp_image(w,h);
+    mpi=temp_images[0];
+    break;
+  case MP_IMGTYPE_IPB:
+    if(!(mp_imgflag&MP_IMGFLAG_READABLE)){ // B frame:
+      if(!temp_images[0]) temp_images[0]=new_mp_image(w,h);
+      mpi=temp_images[0];
+      break;
+    }
+  case MP_IMGTYPE_IP:
+    if(!static_images[static_idx]) static_images[static_idx]=new_mp_image(w,h);
+    mpi=static_images[static_idx];
+    static_idx^=1;
+    break;
+  }
+  if(mpi){
+    mpi->type=mp_imgtype;
+    mpi->flags&=~(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE);
+    mpi->flags|=mp_imgflag&(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE);
+    if(!mpi->bpp){
+      mp_image_setfmt(mpi,sh->codec->outfmt[sh->outfmtidx]);
+      if(!(mpi->flags&(MP_IMGFLAG_ALLOCATED|MP_IMGFLAG_DIRECT)) 
+         && mpi->type>MP_IMGTYPE_EXPORT){
+          // non-direct and not yet allocaed image. allocate it!
+	  printf("*** Allocating mp_image_t, %d bytes\n",mpi->bpp*mpi->width*mpi->height/8);
+	  mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*mpi->height/8);
+	  if(!mpi->stride[0]) mpi->stride[0]=mpi->width;
+	  if(mpi->flags&MP_IMGFLAG_PLANAR){
+	      // YV12/I420. feel free to add other planar formats here...
+	      if(!mpi->stride[1]) mpi->stride[1]=mpi->stride[2]=mpi->width/2;
+	      mpi->planes[1]=mpi->planes[0]+mpi->width*mpi->height;
+	      mpi->planes[2]=mpi->planes[1]+mpi->width*mpi->height/4;
+	  }
+	  mpi->flags|=MP_IMGFLAG_ALLOCATED;
+      }
+    }
+  }
+  return mpi;
+}
+