8
#include "img_format.h"
12
#include "libvo/fastmemcpy.h"
26
int inframes, outframes;
28
int (*analyze)(struct vf_priv_s *, mp_image_t *, mp_image_t *);
32
#define COMPE(a,b,e) (abs((a)-(b)) < (((a)+(b))>>(e)))
33
#define COMPARABLE(a,b) COMPE((a),(b),2)
34
#define VERYCLOSE(a,b) COMPE((a),(b),3)
36
#define OUTER_TC_NBHD(s) ( \
37
COMPARABLE((s)[-1].m.even,(s)[-1].m.odd) && \
38
COMPARABLE((s)[1].m.even,(s)[0].m.odd) && \
39
COMPARABLE((s)[2].m.even,(s)[1].m.odd) && \
40
COMPARABLE((s)[-1].m.noise,(s)[0].m.temp) && \
41
COMPARABLE((s)[2].m.noise,(s)[2].m.temp) )
43
#define INNER_TC_NBHD(s,l,h) ( \
44
COMPARABLE((s)[0].m.even,(l)) && \
45
COMPARABLE((s)[2].m.odd,(l)) && ( \
46
COMPARABLE((s)[0].m.noise,(h)) || \
47
COMPARABLE((s)[1].m.noise,(h)) ) )
56
static inline void *my_memcpy_pic(void * dst, void * src, int bytesPerLine, int height, int dstStride, int srcStride)
61
for(i=0; i<height; i++)
63
memcpy(dst, src, bytesPerLine);
71
static unsigned int hash_pic(unsigned char *img, int w, int h, int stride)
80
for (; x<w; x+=step) {
81
hash = hash ^ (hash<<4) ^ img[x];
90
static void block_diffs(struct metrics *m, unsigned char *old, unsigned char *new, int os, int ns)
92
int x, y, even=0, odd=0, noise, temp;
93
unsigned char *oldp, *newp;
94
m->noise = m->temp = 0;
100
even += abs(newp[0]-oldp[0]);
101
odd += abs(newp[ns]-oldp[os]);
102
noise += newp[ns]-newp[0];
103
temp += oldp[os]-newp[0];
107
m->noise += abs(noise);
108
m->temp += abs(temp);
114
static void diff_planes(struct metrics *m, unsigned char *old, unsigned char *new, int w, int h, int os, int ns)
116
int x, y, me=0, mo=0, mn=0, mt=0;
118
for (y = 0; y < h-7; y += 8) {
119
for (x = 0; x < w-7; x += 8) {
120
block_diffs(&l, old+x+y*os, new+x+y*ns, os, ns);
121
if (l.even > me) me = l.even;
122
if (l.odd > mo) mo = l.odd;
123
if (l.noise > mn) mn = l.noise;
124
if (l.temp > mt) mt = l.temp;
133
static void diff_fields(struct metrics *metr, mp_image_t *old, mp_image_t *new)
135
struct metrics m, mu, mv;
136
diff_planes(&m, old->planes[0], new->planes[0],
137
new->w, new->h, old->stride[0], new->stride[0]);
138
if (new->flags & MP_IMGFLAG_PLANAR) {
139
diff_planes(&mu, old->planes[1], new->planes[1],
140
new->chroma_width, new->chroma_height,
141
old->stride[1], new->stride[1]);
142
diff_planes(&mv, old->planes[2], new->planes[2],
143
new->chroma_width, new->chroma_height,
144
old->stride[2], new->stride[2]);
145
if (mu.even > m.even) m.even = mu.even;
146
if (mu.odd > m.odd) m.odd = mu.odd;
147
if (mu.noise > m.noise) m.noise = mu.noise;
148
if (mu.temp > m.temp) m.temp = mu.temp;
149
if (mv.even > m.even) m.even = mv.even;
150
if (mv.odd > m.odd) m.odd = mv.odd;
151
if (mv.noise > m.noise) m.noise = mv.noise;
152
if (mv.temp > m.temp) m.temp = mv.temp;
157
static void status(int f, struct metrics *m)
159
mp_msg(MSGT_VFILTER, MSGL_V, "frame %d: e=%d o=%d n=%d t=%d\n",
160
f, m->even, m->odd, m->noise, m->temp);
163
static int analyze_fixed_pattern(struct vf_priv_s *p, mp_image_t *new, mp_image_t *old)
165
if (p->frame >= 0) p->frame = (p->frame+1)%5;
166
mp_msg(MSGT_VFILTER, MSGL_V, "frame %d\n", p->frame);
168
case -1: case 0: case 1: case 2:
178
static int analyze_aggressive(struct vf_priv_s *p, mp_image_t *new, mp_image_t *old)
181
struct metrics m, pm;
183
if (p->frame >= 0) p->frame = (p->frame+1)%5;
185
diff_fields(&m, old, new);
187
status(p->frame, &m);
193
/* We need to break at scene changes, but is this a valid test? */
194
if ((m.even > p->thres[2]) && (m.odd > p->thres[2]) && (m.temp > p->thres[3])
195
&& (m.temp > 5*pm.temp) && (m.temp*2 > m.noise)) {
196
mp_msg(MSGT_VFILTER, MSGL_V, "scene change breaking telecine!\n");
200
/* Thres. is to compensate for quantization errors when noise is low */
201
if (m.noise - m.temp > -p->thres[4]) {
202
if (COMPARABLE(m.even, pm.odd)) {
203
//mp_msg(MSGT_VFILTER, MSGL_V, "confirmed field match!\n");
205
} else if ((m.even < p->thres[0]) && (m.odd < p->thres[0]) && VERYCLOSE(m.even, m.odd)
206
&& VERYCLOSE(m.noise,m.temp) && VERYCLOSE(m.noise,pm.noise)) {
207
mp_msg(MSGT_VFILTER, MSGL_V, "interlaced frame appears in duplicate!!!\n");
208
p->pm = pm; /* hack :) */
213
mp_msg(MSGT_VFILTER, MSGL_V, "mismatched telecine fields!\n");
218
if (2*m.even*m.temp < m.odd*m.noise) {
219
mp_msg(MSGT_VFILTER, MSGL_V, "caught telecine sync!\n");
225
if (m.noise > p->thres[3]) {
226
if (m.noise > 2*m.temp) {
227
mp_msg(MSGT_VFILTER, MSGL_V, "merging fields out of sequence!\n");
230
if ((m.noise > 2*pm.noise) && (m.even > p->thres[2]) && (m.odd > p->thres[2])) {
231
mp_msg(MSGT_VFILTER, MSGL_V, "dropping horrible interlaced frame!\n");
239
if (4*m.noise > 5*m.temp) {
240
mp_msg(MSGT_VFILTER, MSGL_V, "merging fields out of sequence!\n");
248
if ((m.even > p->thres[1]) && (m.even > m.odd) && (m.temp > m.noise)) {
249
mp_msg(MSGT_VFILTER, MSGL_V, "lost telecine tracking!\n");
260
static void copy_image(mp_image_t *dmpi, mp_image_t *mpi, int field)
264
my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
265
dmpi->stride[0]*2, mpi->stride[0]*2);
266
if (mpi->flags & MP_IMGFLAG_PLANAR) {
267
my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
268
mpi->chroma_width, mpi->chroma_height/2,
269
dmpi->stride[1]*2, mpi->stride[1]*2);
270
my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
271
mpi->chroma_width, mpi->chroma_height/2,
272
dmpi->stride[2]*2, mpi->stride[2]*2);
276
my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
277
mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
278
dmpi->stride[0]*2, mpi->stride[0]*2);
279
if (mpi->flags & MP_IMGFLAG_PLANAR) {
280
my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
281
mpi->planes[1]+mpi->stride[1],
282
mpi->chroma_width, mpi->chroma_height/2,
283
dmpi->stride[1]*2, mpi->stride[1]*2);
284
my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
285
mpi->planes[2]+mpi->stride[2],
286
mpi->chroma_width, mpi->chroma_height/2,
287
dmpi->stride[2]*2, mpi->stride[2]*2);
291
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
292
dmpi->stride[0], mpi->stride[0]);
293
if (mpi->flags & MP_IMGFLAG_PLANAR) {
294
memcpy_pic(dmpi->planes[1], mpi->planes[1],
295
mpi->chroma_width, mpi->chroma_height,
296
dmpi->stride[1], mpi->stride[1]);
297
memcpy_pic(dmpi->planes[2], mpi->planes[2],
298
mpi->chroma_width, mpi->chroma_height,
299
dmpi->stride[2], mpi->stride[2]);
305
static int do_put_image(struct vf_instance_s* vf, mp_image_t *dmpi)
307
struct vf_priv_s *p = vf->priv;
315
dropflag = (++p->lastdrop >= 5);
318
dropflag = (++p->lastdrop >= 5) && (4*p->inframes <= 5*p->outframes);
323
mp_msg(MSGT_VFILTER, MSGL_V, "drop! [%d/%d=%g]\n",
324
p->outframes, p->inframes, (float)p->outframes/p->inframes);
330
return vf_next_put_image(vf, dmpi);
333
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi)
337
struct vf_priv_s *p = vf->priv;
341
if (p->needread) dmpi = vf_get_image(vf->next, mpi->imgfmt,
342
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
343
MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
344
mpi->width, mpi->height);
345
/* FIXME: is there a good way to get rid of static type? */
346
else dmpi = vf_get_image(vf->next, mpi->imgfmt,
347
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
348
MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);
350
switch (p->analyze(p, mpi, dmpi)) {
352
/* Don't copy anything unless we'll need to read it. */
353
if (p->needread) copy_image(dmpi, mpi, 2);
357
/* Copy and display the whole frame. */
358
copy_image(dmpi, mpi, 2);
359
ret = do_put_image(vf, dmpi);
362
/* Only copy bottom field unless we need to read. */
363
if (p->needread) copy_image(dmpi, mpi, 2);
364
else copy_image(dmpi, mpi, 1);
368
/* Copy top field and show frame, then copy bottom if needed. */
369
copy_image(dmpi, mpi, 0);
370
ret = do_put_image(vf, dmpi);
371
if (p->needread) copy_image(dmpi, mpi, 1);
377
static int query_format(struct vf_instance_s* vf, unsigned int fmt)
379
/* FIXME - figure out which other formats work */
384
return vf_next_query_format(vf, fmt);
389
static int config(struct vf_instance_s* vf,
390
int width, int height, int d_width, int d_height,
391
unsigned int flags, unsigned int outfmt)
393
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
396
static void uninit(struct vf_instance_s* vf)
403
int (*func)(struct vf_priv_s *p, mp_image_t *new, mp_image_t *old);
406
{ "fixed", analyze_fixed_pattern, 0 },
407
{ "aggressive", analyze_aggressive, 1 },
411
#define STARTVARS if (0)
412
#define GETVAR(str, name, out, func) \
413
else if (!strncmp((str), name "=", sizeof(name))) \
414
(out) = (func)((str) + sizeof(name))
416
static void parse_var(struct vf_priv_s *p, char *var)
419
GETVAR(var, "dr", p->drop, atoi);
420
GETVAR(var, "t0", p->thres[0], atoi);
421
GETVAR(var, "t1", p->thres[1], atoi);
422
GETVAR(var, "t2", p->thres[2], atoi);
423
GETVAR(var, "t3", p->thres[3], atoi);
424
GETVAR(var, "t4", p->thres[4], atoi);
425
GETVAR(var, "fr", p->frame, atoi);
426
GETVAR(var, "am", p->mode, atoi);
429
static void parse_args(struct vf_priv_s *p, char *args)
432
for (args=orig=strdup(args); args; args=next) {
433
next = strchr(args, ':');
434
if (next) *next++ = 0;
440
static int open(vf_instance_t *vf, char* args)
444
vf->put_image = put_image;
445
vf->query_format = query_format;
447
vf->default_reqs = VFCAP_ACCEPT_STRIDE;
448
vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
457
if (args) parse_args(p, args);
458
p->analyze = anal_funcs[p->mode].func;
459
p->needread = anal_funcs[p->mode].needread;
463
vf_info_t vf_info_detc = {
464
"de-telecine filter",