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#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"
#include "../libvo/sub.h"
struct vf_priv_s {
int state;
long long in;
long long out;
};
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 = 0;
int flags = mpi->fields;
int state = vf->priv->state;
dmpi = vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);
vf->priv->in++;
if ((state == 0 &&
!(flags & MP_IMGFIELD_TOP_FIRST)) ||
(state == 1 &&
flags & MP_IMGFIELD_TOP_FIRST)) {
mp_msg(MSGT_VFILTER, MSGL_WARN,
"softpulldown: Unexpected field flags: state=%d top_field_first=%d repeat_first_field=%d\n",
state,
(flags & MP_IMGFIELD_TOP_FIRST) != 0,
(flags & MP_IMGFIELD_REPEAT_FIRST) != 0);
state ^= 1;
}
if (state == 0) {
ret = vf_next_put_image(vf, mpi);
vf->priv->out++;
if (flags & MP_IMGFIELD_REPEAT_FIRST) {
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);
}
state=1;
}
} else {
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);
vf->priv->out++;
if (flags & MP_IMGFIELD_REPEAT_FIRST) {
ret |= vf_next_put_image(vf, mpi);
vf->priv->out++;
state=0;
} else {
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);
}
}
}
vf->priv->state = state;
return ret;
}
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)
{
mp_msg(MSGT_VFILTER, MSGL_INFO, "softpulldown: %lld frames in, %lld frames out\n", vf->priv->in, vf->priv->out);
free(vf->priv);
}
static int open(vf_instance_t *vf, char* args)
{
struct vf_priv_s *p;
vf->config = config;
vf->put_image = put_image;
vf->uninit = uninit;
vf->default_reqs = VFCAP_ACCEPT_STRIDE;
vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
vf->priv->state = 0;
return 1;
}
vf_info_t vf_info_softpulldown = {
"mpeg2 soft 3:2 pulldown",
"softpulldown",
"Tobias Diedrich",
"",
open,
NULL
};
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