vfwex separated from vfw, to work with new vfm system and dlopen

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7176 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 91 insertions, 0 deletions

diff --git a/libmpcodecs/vd_vfwex.c b/libmpcodecs/vd_vfwex.c
new file mode 100644
index 0000000000..8c48871a1f
--- /dev/null
+++ b/libmpcodecs/vd_vfwex.c
@@ -0,0 +1,91 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "config.h"
+#ifdef USE_WIN32DLL
+
+#include "mp_msg.h"
+#include "help_mp.h"
+
+#include "vd_internal.h"
+
+#include "dll_init.h"
+
+static vd_info_t info_vfwex = {
+	"Win32/VfWex video codecs",
+	"vfwex",
+	VFM_VFWEX,
+	"A'rpi",
+	"based on http://avifile.sf.net",
+	"win32 codecs"
+};
+
+LIBVD_EXTERN(vfwex)
+
+// to set/get/query special features/parameters
+static int control(sh_video_t *sh,int cmd,void* arg,...){
+    switch(cmd){
+    case VDCTRL_QUERY_MAX_PP_LEVEL:
+	return 9;
+    case VDCTRL_SET_PP_LEVEL:
+	vfw_set_postproc(sh,10*(*((int*)arg)));
+	return CONTROL_OK;
+    }
+    return CONTROL_UNKNOWN;
+}
+
+// init driver
+static int init(sh_video_t *sh){
+    if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2)) return 0;
+    if(!init_vfw_video_codec(sh,1)) return 0;
+    mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32 video codec init OK!\n");
+    return 1;
+}
+
+// uninit driver
+static void uninit(sh_video_t *sh){
+    vfw_close_video_codec(sh, 1);
+}
+
+//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
+
+// decode a frame
+static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
+    mp_image_t* mpi;
+    int ret;
+    if(len<=0) return NULL; // skipped frame
+
+    mpi=mpcodecs_get_image(sh, 
+	(sh->codec->outflags[sh->outfmtidx] & CODECS_FLAG_STATIC) ?
+	MP_IMGTYPE_STATIC : MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_WIDTH, 
+	sh->disp_w, sh->disp_h);
+    if(!mpi){	// temporary!
+	printf("couldn't allocate image for cinepak codec\n");
+	return NULL;
+    }
+
+    // set buffer:
+    sh->our_out_buffer=mpi->planes[0];
+
+    // set stride:  (trick discovered by Andreas Ackermann - thanx!)
+    sh->bih->biWidth=mpi->width; //mpi->stride[0]/(mpi->bpp/8);
+    sh->o_bih.biWidth=mpi->width; //mpi->stride[0]/(mpi->bpp/8);
+
+    if((ret=vfw_decode_video(sh,data,len,flags&3,1))){
+      mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error decompressing frame, err=%d\n",ret);
+      return NULL;
+    }
+    
+    if(mpi->imgfmt==IMGFMT_RGB8 || mpi->imgfmt==IMGFMT_BGR8){
+	// export palette:
+// FIXME: sh->o_bih is cutted down to 40 bytes!!!
+//	if(sh->o_bih->biSize>40)
+//	    mpi->planes[1]=((unsigned char*)&sh->o_bih)+40;
+//	else
+	    mpi->planes[1]=NULL;
+    }
+    
+    return mpi;
+}
+
+#endif