mirror of https://github.com/mpv-player/mpv
240 lines
6.7 KiB
C
240 lines
6.7 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "../libvo/fastmemcpy.h"
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struct vf_priv_s {
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int mode;
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};
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static inline void *my_memcpy_pic(void * dst, void * src, int bytesPerLine, int height, int dstStride, int srcStride)
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{
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int i;
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void *retval=dst;
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for(i=0; i<height; i++)
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{
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memcpy(dst, src, bytesPerLine);
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src+= srcStride;
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dst+= dstStride;
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}
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return retval;
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}
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static void deint(unsigned char *dest, int ds, unsigned char *src, int ss, int w, int h, int field)
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{
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int x, y;
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src += ss;
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dest += ds;
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if (field) {
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src += ss;
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dest += ds;
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h -= 2;
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}
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for (y=h/2; y; y--) {
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for (x=0; x<w; x++) {
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if (((src[x-ss] < src[x]) && (src[x+ss] < src[x])) ||
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((src[x-ss] > src[x]) && (src[x+ss] > src[x]))) {
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//dest[x] = (src[x+ss] + src[x-ss])>>1;
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dest[x] = ((src[x+ss]<<1) + (src[x-ss]<<1)
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+ src[x+ss+1] + src[x-ss+1]
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+ src[x+ss-1] + src[x-ss-1])>>3;
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}
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else dest[x] = src[x];
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}
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dest += ds<<1;
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src += ss<<1;
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}
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}
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static void qpelup(unsigned char *d, unsigned char *s, int w, int h, int ds, int ss)
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{
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int i, j;
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memcpy(d, s, w);
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for (i=h-1; i; i--) {
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d += ds;
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s += ss;
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for (j=0; j<w; j++)
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d[j] = (s[j-ss] + 3*s[j])>>2;
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}
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}
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static void qpeldown(unsigned char *d, unsigned char *s, int w, int h, int ds, int ss)
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{
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int i, j;
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for (i=h-1; i; i--) {
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for (j=0; j<w; j++)
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d[j] = (3*s[j] + s[j+ss])>>2;
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d += ds;
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s += ss;
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}
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memcpy(d, s, w);
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}
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
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{
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int ret;
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mp_image_t *dmpi;
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switch (vf->priv->mode) {
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case 0:
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dmpi = vf_get_image(vf->next, mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->width, mpi->height/2);
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memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
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dmpi->stride[0], mpi->stride[0]*2);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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memcpy_pic(dmpi->planes[1], mpi->planes[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1], mpi->stride[1]*2);
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memcpy_pic(dmpi->planes[2], mpi->planes[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2], mpi->stride[2]*2);
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}
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ret = vf_next_put_image(vf, dmpi);
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memcpy_pic(dmpi->planes[0], mpi->planes[0] + mpi->stride[0],
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mpi->w, mpi->h/2, dmpi->stride[0], mpi->stride[0]*2);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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memcpy_pic(dmpi->planes[1], mpi->planes[1] + mpi->stride[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1], mpi->stride[1]*2);
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memcpy_pic(dmpi->planes[2], mpi->planes[2] + mpi->stride[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2], mpi->stride[2]*2);
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}
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return vf_next_put_image(vf, dmpi) || ret;
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case 1:
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dmpi = vf_get_image(vf->next, mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->width, mpi->height);
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my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
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dmpi->stride[0]*2, mpi->stride[0]*2);
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deint(dmpi->planes[0], dmpi->stride[0], mpi->planes[0], mpi->stride[0], mpi->w, mpi->h, 0);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1]*2, mpi->stride[1]*2);
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my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2]*2, mpi->stride[2]*2);
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deint(dmpi->planes[1], dmpi->stride[1], mpi->planes[1], mpi->stride[1],
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mpi->chroma_width, mpi->chroma_height, 0);
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deint(dmpi->planes[2], dmpi->stride[2], mpi->planes[2], mpi->stride[2],
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mpi->chroma_width, mpi->chroma_height, 0);
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}
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ret = vf_next_put_image(vf, dmpi);
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my_memcpy_pic(dmpi->planes[0] + dmpi->stride[0], mpi->planes[0] + mpi->stride[0],
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mpi->w, mpi->h/2, dmpi->stride[0]*2, mpi->stride[0]*2);
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deint(dmpi->planes[0], dmpi->stride[0], mpi->planes[0], mpi->stride[0], mpi->w, mpi->h, 1);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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my_memcpy_pic(dmpi->planes[1] + dmpi->stride[1], mpi->planes[1] + mpi->stride[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1]*2, mpi->stride[1]*2);
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my_memcpy_pic(dmpi->planes[2] + dmpi->stride[2], mpi->planes[2] + mpi->stride[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2]*2, mpi->stride[2]*2);
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deint(dmpi->planes[1], dmpi->stride[1], mpi->planes[1], mpi->stride[1],
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mpi->chroma_width, mpi->chroma_height, 1);
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deint(dmpi->planes[2], dmpi->stride[2], mpi->planes[2], mpi->stride[2],
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mpi->chroma_width, mpi->chroma_height, 1);
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}
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return vf_next_put_image(vf, dmpi) || ret;
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case 2:
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dmpi = vf_get_image(vf->next, mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->width, mpi->height/2);
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qpeldown(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
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dmpi->stride[0], mpi->stride[0]*2);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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qpeldown(dmpi->planes[1], mpi->planes[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1], mpi->stride[1]*2);
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qpeldown(dmpi->planes[2], mpi->planes[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2], mpi->stride[2]*2);
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}
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ret = vf_next_put_image(vf, dmpi);
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qpelup(dmpi->planes[0], mpi->planes[0] + mpi->stride[0],
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mpi->w, mpi->h/2, dmpi->stride[0], mpi->stride[0]*2);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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qpelup(dmpi->planes[1], mpi->planes[1] + mpi->stride[1],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[1], mpi->stride[1]*2);
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qpelup(dmpi->planes[2], mpi->planes[2] + mpi->stride[2],
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mpi->chroma_width, mpi->chroma_height/2,
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dmpi->stride[2], mpi->stride[2]*2);
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}
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return vf_next_put_image(vf, dmpi) || ret;
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}
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return 0;
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}
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static int query_format(struct vf_instance_s* vf, unsigned int fmt)
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{
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/* FIXME - figure out which other formats work */
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switch (fmt) {
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case IMGFMT_YV12:
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case IMGFMT_IYUV:
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case IMGFMT_I420:
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return vf_next_query_format(vf, fmt);
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}
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return 0;
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}
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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switch (vf->priv->mode) {
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case 0:
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case 2:
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return vf_next_config(vf,width,height/2,d_width,d_height,flags,outfmt);
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case 1:
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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return 0;
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}
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static void uninit(struct vf_instance_s* vf)
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{
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free(vf->priv);
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}
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static int open(vf_instance_t *vf, char* args)
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{
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struct vf_priv_s *p;
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vf->config = config;
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vf->put_image = put_image;
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vf->query_format = query_format;
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vf->uninit = uninit;
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vf->default_reqs = VFCAP_ACCEPT_STRIDE;
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vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
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vf->priv->mode = 0;
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if (args) sscanf(args, "%d", &vf->priv->mode);
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return 1;
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}
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vf_info_t vf_info_tfields = {
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"temporal field separation",
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"tfields",
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"Rich Felker",
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"",
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open,
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NULL
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};
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