mirror of
https://github.com/mpv-player/mpv
synced 2025-02-10 08:57:47 +00:00
bb4ceb735a
but defaults seem to work ok. may change drastically over the next few weeks. please test it an report results! git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9468 b3059339-0415-0410-9bf9-f77b7e298cf2
276 lines
6.7 KiB
C
276 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 metrics {
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int even;
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int odd;
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int noise;
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int temp;
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};
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struct vf_priv_s {
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int frame;
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int autosync;
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int lastsync;
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int lastdrop;
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int oddfactor, noisefactor;
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int resync;
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struct metrics pm, hi, lo;
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int prevscore;
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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 block_diffs(struct metrics *m, unsigned char *old, unsigned char *new, int os, int ns)
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{
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int i, x, even=0, odd=0, noise=0, temp=0, sum=0;
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for (i = 8; i; i--) {
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for (x = 0; x < 16; x++) {
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even += abs(new[x]-old[x]);
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odd += abs(new[x+ns]-old[x+os]);
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sum += new[x];
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noise += new[x+ns];
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temp += old[x+os];
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}
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old += 2*os; new += 2*ns;
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}
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m->even = even;
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m->odd = odd;
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m->noise = abs(noise-sum);
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m->temp = abs(temp-sum);
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}
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static void diff_fields(struct metrics *m, unsigned char *old, unsigned char *new, int w, int h, int os, int ns)
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{
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int x, y, me=0, mo=0, mn=0, mt=0;
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struct metrics l;
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for (y = 0; y < h-15; y += 16) {
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for (x = 0; x < w-15; x += 16) {
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block_diffs(&l, old+x+y*os, new+x+y*ns, os, ns);
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if (l.even > me) me = l.even;
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if (l.odd > mo) mo = l.odd;
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if (l.noise > mn) mn = l.noise;
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if (l.temp > mt) mt = l.temp;
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}
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}
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m->even = me;
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m->odd = mo;
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m->noise = mn;
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m->temp = mt;
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}
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static status(int f, struct metrics *m, int s)
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{
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mp_msg(MSGT_VFILTER, MSGL_V, "frame %d: e=%d o=%d n=%d t=%d s=%d\n",
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f, m->even, m->odd, m->noise, m->temp, s);
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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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struct vf_priv_s *p = vf->priv;
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mp_image_t *dmpi;
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int i;
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struct metrics m;
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int isdup, notdup;
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int islaced, notlaced;
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int tcstart, tcend;
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int tcscore;
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if (p->frame >= 0)
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p->frame = (p->frame+1)%5;
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dmpi = vf_get_image(vf->next, mpi->imgfmt,
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MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
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MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
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mpi->width, mpi->height);
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diff_fields(&m, dmpi->planes[0], mpi->planes[0],
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mpi->w, mpi->h, dmpi->stride[0], mpi->stride[0]);
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isdup = m.even < p->lo.even;
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notdup = m.even > p->hi.even;
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tcscore = (m.odd > p->lo.odd) + (m.odd > p->hi.odd) + (m.odd > 4*m.even)
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+ (m.noise > p->lo.noise) + (m.noise > p->hi.noise)
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+ (m.noise > m.temp)
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+ (m.even * p->pm.odd > m.odd * p->pm.even);
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status(p->frame, &m, tcscore);
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vf->priv->pm = m;
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vf->priv->prevscore = tcscore;
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switch (vf->priv->frame) {
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case 0:
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case 1:
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case 2:
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if (isdup && (tcscore > 3)) {
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//status(p->frame, &m, tcscore);
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mp_msg(MSGT_VFILTER, MSGL_V, "heavy lacing, trying to resync with telecine!\n");
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vf->priv->frame = 3;
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return 0;
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} else if (tcscore > 5) {
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//status(p->frame, &m, tcscore);
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mp_msg(MSGT_VFILTER, MSGL_V, "laced scene change, trying to resync with telecine!\n");
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vf->priv->frame = 3;
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return 0;
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}
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break;
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case 3:
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if (notdup && (m.noise < p->hi.noise)) {
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//status(p->frame, &m, tcscore);
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mp_msg(MSGT_VFILTER, MSGL_V, "non-duplicate field; lost telecine tracking!\n");
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vf->priv->frame = -1;
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}
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break;
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case 4:
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if (m.temp > p->hi.temp) { /* bad match */
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//status(p->frame, &m, tcscore);
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if (m.noise < p->hi.noise) {
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mp_msg(MSGT_VFILTER, MSGL_V, "mismatched non-interlaced frame; lost telecine tracking!\n");
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vf->priv->frame = -1;
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} else {
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mp_msg(MSGT_VFILTER, MSGL_V, "mismatched interlaced frame; trying to resync!\n");
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vf->priv->frame = 3;
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}
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}
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break;
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default:
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if (!notdup && (tcscore > 2)) {
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//status(p->frame, &m, tcscore);
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mp_msg(MSGT_VFILTER, MSGL_V, "caught the telecine start!\n");
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vf->priv->frame = 3;
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}
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break;
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}
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if (vf->priv->frame < 3) {
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memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
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dmpi->stride[0], mpi->stride[0]);
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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,
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dmpi->stride[1], mpi->stride[1]);
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memcpy_pic(dmpi->planes[2], mpi->planes[2],
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mpi->chroma_width, mpi->chroma_height,
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dmpi->stride[2], mpi->stride[2]);
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}
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} else if (vf->priv->frame == 3) {
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my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
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mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
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dmpi->stride[0]*2, mpi->stride[0]*2);
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
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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],
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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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}
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p->lastdrop = 0;
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return 0;
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} else {
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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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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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}
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}
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if (++p->lastdrop >= 5) {
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mp_msg(MSGT_VFILTER, MSGL_V, "dropping frame!\n");
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p->lastdrop = 0;
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return 0;
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}
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return vf_next_put_image(vf, dmpi);
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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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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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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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if (args) sscanf(args, "%d:%d", &vf->priv->frame, &vf->priv->autosync);
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p->frame = -1;
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p->lastsync = 10;
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p->lo.even = 1760;
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p->hi.even = 2880;
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p->lo.odd = 2560;
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p->hi.odd = 10240;
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p->lo.noise = 4480;
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p->hi.noise = 10240;
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p->lo.temp = 6400;
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p->hi.temp = 12800;
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vf->priv->oddfactor = 3;
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vf->priv->noisefactor = 6;
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return 1;
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}
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vf_info_t vf_info_detc = {
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"de-telecine filter",
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"detc",
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"Rich Felker",
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"",
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open
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};
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