filter for applying 3:2 telecine to 23.976 fps progressive material.

use with mencder -ofps 29.97 -fps 29.97 for proper results!


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9469 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 151 insertions, 0 deletions

diff --git a/libmpcodecs/vf_telecine.c b/libmpcodecs/vf_telecine.c
new file mode 100644
index 0000000000..a71494d611
--- /dev/null
+++ b/libmpcodecs/vf_telecine.c
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../config.h"
+#include "../mp_msg.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+#include "../libvo/fastmemcpy.h"
+
+struct vf_priv_s {
+	int frame;
+};
+
+static inline void *my_memcpy_pic(void * dst, void * src, int bytesPerLine, int height, int dstStride, int srcStride)
+{
+	int i;
+	void *retval=dst;
+
+	for(i=0; i<height; i++)
+	{
+		memcpy(dst, src, bytesPerLine);
+		src+= srcStride;
+		dst+= dstStride;
+	}
+
+	return retval;
+}
+
+static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
+{
+	mp_image_t *dmpi;
+	int ret;
+
+	vf->priv->frame = (vf->priv->frame+1)%4;
+	
+	dmpi = vf_get_image(vf->next, mpi->imgfmt,
+		MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
+		MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);
+
+	ret = 0;
+	//    0/0  1/1  2/2  2/3  3/0
+	switch (vf->priv->frame) {
+	case 0:
+		my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
+			mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
+			dmpi->stride[0]*2, mpi->stride[0]*2);
+		if (mpi->flags & MP_IMGFLAG_PLANAR) {
+			my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
+				mpi->planes[1]+mpi->stride[1],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[1]*2, mpi->stride[1]*2);
+			my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
+				mpi->planes[2]+mpi->stride[2],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[2]*2, mpi->stride[2]*2);
+		}
+		ret = vf_next_put_image(vf, dmpi);
+	case 1:
+	case 2:
+		memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
+			dmpi->stride[0], mpi->stride[0]);
+		if (mpi->flags & MP_IMGFLAG_PLANAR) {
+			memcpy_pic(dmpi->planes[1], mpi->planes[1],
+				mpi->chroma_width, mpi->chroma_height,
+				dmpi->stride[1], mpi->stride[1]);
+			memcpy_pic(dmpi->planes[2], mpi->planes[2],
+				mpi->chroma_width, mpi->chroma_height,
+				dmpi->stride[2], mpi->stride[2]);
+		}
+		return vf_next_put_image(vf, dmpi) || ret;
+	case 3:
+		my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
+			mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
+			dmpi->stride[0]*2, mpi->stride[0]*2);
+		if (mpi->flags & MP_IMGFLAG_PLANAR) {
+			my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
+				mpi->planes[1]+mpi->stride[1],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[1]*2, mpi->stride[1]*2);
+			my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
+				mpi->planes[2]+mpi->stride[2],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[2]*2, mpi->stride[2]*2);
+		}
+		ret = vf_next_put_image(vf, dmpi);
+		my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
+			dmpi->stride[0]*2, mpi->stride[0]*2);
+		if (mpi->flags & MP_IMGFLAG_PLANAR) {
+			my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[1]*2, mpi->stride[1]*2);
+			my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
+				mpi->chroma_width, mpi->chroma_height/2,
+				dmpi->stride[2]*2, mpi->stride[2]*2);
+		}
+		return ret;
+	}
+	return 0;
+}
+
+static int query_format(struct vf_instance_s* vf, unsigned int fmt)
+{
+	/* FIXME - figure out which other formats work */
+	switch (fmt) {
+	case IMGFMT_YV12:
+	case IMGFMT_IYUV:
+	case IMGFMT_I420:
+		return vf_next_query_format(vf, fmt);
+	}
+	return 0;
+}
+
+static int config(struct vf_instance_s* vf,
+        int width, int height, int d_width, int d_height,
+	unsigned int flags, unsigned int outfmt)
+{
+	return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
+}
+
+static void uninit(struct vf_instance_s* vf)
+{
+	free(vf->priv);
+}
+
+static int open(vf_instance_t *vf, char* args)
+{
+	//vf->config = config;
+	vf->put_image = put_image;
+	//vf->query_format = query_format;
+	vf->uninit = uninit;
+	vf->default_reqs = VFCAP_ACCEPT_STRIDE;
+	vf->priv = calloc(1, sizeof(struct vf_priv_s));
+	vf->priv->frame = 1;
+	if (args) sscanf(args, "%d", &vf->priv->frame);
+	vf->priv->frame--;
+	return 1;
+}
+
+vf_info_t vf_info_telecine = {
+    "telecine filter",
+    "telecine",
+    "Rich Felker",
+    "",
+    open
+};
+
+