native DV audio/video decoders using libdv

based on patch by Alexander Neundorf <neundorf@kde.org>


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6928 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 88 insertions, 0 deletions

diff --git a/libmpcodecs/vd_libdv.c b/libmpcodecs/vd_libdv.c
new file mode 100644
index 0000000000..c890d550d7
--- /dev/null
+++ b/libmpcodecs/vd_libdv.c
@@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <math.h>
+
+#include "config.h"
+
+#ifdef HAVE_LIBDV095
+
+#include "img_format.h"
+
+#include <libdv/dv.h>
+#include <libdv/dv_types.h>
+
+#include "stream.h"
+#include "demuxer.h"
+#include "stheader.h"
+
+#include "vd_internal.h"
+
+static vd_info_t info =
+{
+	"Raw DV Video Decoder",
+	"libdv",
+	VFM_LIBDV,
+	"Alexander Neundorf <neundorf@kde.org>",
+	"http://libdv.sf.net",
+	""
+};
+
+LIBVD_EXTERN(libdv)
+
+// to set/get/query special features/parameters
+static int control(sh_video_t *sh,int cmd,void* arg,...){
+    return CONTROL_UNKNOWN;
+}
+
+static dv_decoder_t* global_rawdv_decoder=NULL;
+
+dv_decoder_t* init_global_rawdv_decoder()
+{
+ if(!global_rawdv_decoder){
+   global_rawdv_decoder=dv_decoder_new(TRUE,TRUE,FALSE);
+   global_rawdv_decoder->quality=DV_QUALITY_BEST;
+   global_rawdv_decoder->prev_frame_decoded = 0;
+ }
+ return global_rawdv_decoder;
+}
+
+// init driver
+static int init(sh_video_t *sh)
+{
+   sh->context = (void *)init_global_rawdv_decoder();
+   return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2);
+}
+
+// uninit driver
+static void uninit(sh_video_t *sh){
+}
+
+// decode a frame
+static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags)
+{
+   mp_image_t* mpi;
+   dv_decoder_t *decoder=sh->context;
+   
+   if(len<=0 || (flags&3)){
+//      fprintf(stderr,"decode() (rawdv) SKIPPED\n");
+      return NULL; // skipped frame
+   }
+
+   dv_parse_header(decoder, data);
+
+   mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE, sh->disp_w, sh->disp_h);
+    
+   if(!mpi){	// temporary!
+      fprintf(stderr,"couldn't allocate image for stderr codec\n");
+      return NULL;
+   }
+
+   dv_decode_full_frame(decoder, data, e_dv_color_yuv, mpi->planes, mpi->stride);
+   
+   return mpi;
+}
+#endif
+