44 #define INPUT_CLEANSRC 1
114 #define OFFSET(x) offsetof(FieldMatchContext, x)
115 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
126 {
"pc_n_ub",
"2-way match + 3rd match on combed + 4th/5th matches if still combed (p/c + u + u/b)", 0,
AV_OPT_TYPE_CONST, {.i64=
MODE_PC_N_UB}, INT_MIN, INT_MAX,
FLAGS,
"mode" },
129 {
"ppsrc",
"mark main input as a pre-processed input and activate clean source input stream",
OFFSET(ppsrc),
AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1,
FLAGS },
134 {
"mchroma",
"set whether or not chroma is included during the match comparisons",
OFFSET(mchroma),
AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1,
FLAGS },
135 {
"y0",
"define an exclusion band which excludes the lines between y0 and y1 from the field matching decision",
OFFSET(y0),
AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,
FLAGS },
136 {
"y1",
"define an exclusion band which excludes the lines between y0 and y1 from the field matching decision",
OFFSET(y1),
AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX,
FLAGS },
146 {
"cthresh",
"set the area combing threshold used for combed frame detection",
OFFSET(cthresh),
AV_OPT_TYPE_INT, {.i64= 9}, -1, 0xff,
FLAGS },
148 {
"blockx",
"set the x-axis size of the window used during combed frame detection",
OFFSET(blockx),
AV_OPT_TYPE_INT, {.i64=16}, 4, 1<<9,
FLAGS },
149 {
"blocky",
"set the y-axis size of the window used during combed frame detection",
OFFSET(blocky),
AV_OPT_TYPE_INT, {.i64=16}, 4, 1<<9,
FLAGS },
150 {
"combpel",
"set the number of combed pixels inside any of the blocky by blockx size blocks on the frame for the frame to be detected as combed",
OFFSET(combpel),
AV_OPT_TYPE_INT, {.i64=80}, 0, INT_MAX,
FLAGS },
171 const int src1_linesize = f1->
linesize[0];
172 const int src2_linesize = f2->
linesize[0];
177 for (y = 0; y <
height; y++) {
178 for (x = 0; x <
width; x++)
179 acc +=
abs(srcp1[x] - srcp2[x]);
180 srcp1 += src1_linesize;
181 srcp2 += src2_linesize;
190 for (y = 0; y <
h; y++) {
198 int x, y, plane, max_v = 0;
199 const int cthresh = fm->
cthresh;
200 const int cthresh6 = cthresh * 6;
202 for (plane = 0; plane < (fm->
chroma ? 3 : 1); plane++) {
204 const int src_linesize =
src->linesize[plane];
217 #define FILTER(xm2, xm1, xp1, xp2) \
219 -3 * (srcp[x + (xm1)*src_linesize] + srcp[x + (xp1)*src_linesize]) \
220 + (srcp[x + (xm2)*src_linesize] + srcp[x + (xp2)*src_linesize])) > cthresh6
223 for (x = 0; x <
width; x++) {
224 const int s1 =
abs(srcp[x] - srcp[x + src_linesize]);
225 if (
s1 > cthresh &&
FILTER(2, 1, 1, 2))
228 srcp += src_linesize;
229 cmkp += cmk_linesize;
232 for (x = 0; x <
width; x++) {
233 const int s1 =
abs(srcp[x] - srcp[x - src_linesize]);
234 const int s2 =
abs(srcp[x] - srcp[x + src_linesize]);
235 if (
s1 > cthresh &&
s2 > cthresh &&
FILTER(2, -1, 1, 2))
238 srcp += src_linesize;
239 cmkp += cmk_linesize;
242 for (y = 2; y <
height-2; y++) {
243 for (x = 0; x <
width; x++) {
244 const int s1 =
abs(srcp[x] - srcp[x - src_linesize]);
245 const int s2 =
abs(srcp[x] - srcp[x + src_linesize]);
246 if (
s1 > cthresh &&
s2 > cthresh &&
FILTER(-2, -1, 1, 2))
249 srcp += src_linesize;
250 cmkp += cmk_linesize;
254 for (x = 0; x <
width; x++) {
255 const int s1 =
abs(srcp[x] - srcp[x - src_linesize]);
256 const int s2 =
abs(srcp[x] - srcp[x + src_linesize]);
257 if (
s1 > cthresh &&
s2 > cthresh &&
FILTER(-2, -1, 1, -2))
260 srcp += src_linesize;
261 cmkp += cmk_linesize;
264 for (x = 0; x <
width; x++) {
265 const int s1 =
abs(srcp[x] - srcp[x - src_linesize]);
266 if (
s1 > cthresh &&
FILTER(-2, -1, -1, -2))
279 uint8_t *cmkpp = cmkp - (cmk_linesize>>1);
280 uint8_t *cmkpn = cmkp + (cmk_linesize>>1);
281 uint8_t *cmkpnn = cmkp + cmk_linesize;
282 for (y = 1; y <
height - 1; y++) {
283 cmkpp += cmk_linesize;
284 cmkp += cmk_linesize;
285 cmkpn += cmk_linesize;
286 cmkpnn += cmk_linesize;
287 cmkpV += cmk_linesizeUV;
288 cmkpU += cmk_linesizeUV;
289 for (x = 1; x <
width - 1; x++) {
290 #define HAS_FF_AROUND(p, lz) (p[(x)-1 - (lz)] == 0xff || p[(x) - (lz)] == 0xff || p[(x)+1 - (lz)] == 0xff || \
291 p[(x)-1 ] == 0xff || p[(x)+1 ] == 0xff || \
292 p[(x)-1 + (lz)] == 0xff || p[(x) + (lz)] == 0xff || p[(x)+1 + (lz)] == 0xff)
293 if ((cmkpV[x] == 0xff &&
HAS_FF_AROUND(cmkpV, cmk_linesizeUV)) ||
294 (cmkpU[x] == 0xff &&
HAS_FF_AROUND(cmkpU, cmk_linesizeUV))) {
295 ((uint16_t*)cmkp)[x] = 0xffff;
296 ((uint16_t*)cmkpn)[x] = 0xffff;
297 if (y&1) ((uint16_t*)cmkpp)[x] = 0xffff;
298 else ((uint16_t*)cmkpnn)[x] = 0xffff;
305 const int blockx = fm->
blockx;
306 const int blocky = fm->
blocky;
307 const int xhalf = blockx/2;
308 const int yhalf = blocky/2;
313 const int xblocks = ((
width+xhalf)/blockx) + 1;
314 const int xblocks4 = xblocks<<2;
315 const int yblocks = ((
height+yhalf)/blocky) + 1;
317 const int arraysize = (xblocks*yblocks)<<2;
318 int heighta = (
height/(blocky/2))*(blocky/2);
319 const int widtha = (
width /(blockx/2))*(blockx/2);
322 memset(c_array, 0, arraysize *
sizeof(*c_array));
324 #define C_ARRAY_ADD(v) do { \
325 const int box1 = (x / blockx) * 4; \
326 const int box2 = ((x + xhalf) / blockx) * 4; \
327 c_array[temp1 + box1 ] += v; \
328 c_array[temp1 + box2 + 1] += v; \
329 c_array[temp2 + box1 + 2] += v; \
330 c_array[temp2 + box2 + 3] += v; \
333 #define VERTICAL_HALF(y_start, y_end) do { \
334 for (y = y_start; y < y_end; y++) { \
335 const int temp1 = (y / blocky) * xblocks4; \
336 const int temp2 = ((y + yhalf) / blocky) * xblocks4; \
337 for (x = 0; x < width; x++) \
338 if (cmkp[x - cmk_linesize] == 0xff && \
339 cmkp[x ] == 0xff && \
340 cmkp[x + cmk_linesize] == 0xff) \
342 cmkp += cmk_linesize; \
348 for (y = yhalf; y < heighta; y += yhalf) {
349 const int temp1 = (y / blocky) * xblocks4;
350 const int temp2 = ((y + yhalf) / blocky) * xblocks4;
352 for (x = 0; x < widtha; x += xhalf) {
353 const uint8_t *cmkp_tmp = cmkp + x;
355 for (
u = 0;
u < yhalf;
u++) {
356 for (v = 0; v < xhalf; v++)
357 if (cmkp_tmp[v - cmk_linesize] == 0xff &&
358 cmkp_tmp[v ] == 0xff &&
359 cmkp_tmp[v + cmk_linesize] == 0xff)
361 cmkp_tmp += cmk_linesize;
367 for (x = widtha; x <
width; x++) {
368 const uint8_t *cmkp_tmp = cmkp + x;
370 for (
u = 0;
u < yhalf;
u++) {
371 if (cmkp_tmp[-cmk_linesize] == 0xff &&
372 cmkp_tmp[ 0] == 0xff &&
373 cmkp_tmp[ cmk_linesize] == 0xff)
375 cmkp_tmp += cmk_linesize;
381 cmkp += cmk_linesize * yhalf;
386 for (x = 0; x < arraysize; x++)
387 if (c_array[x] > max_v)
395 const uint8_t *nxtp,
int nxt_linesize,
396 uint8_t *tbuffer,
int tbuf_linesize,
401 prvp -= prv_linesize;
402 nxtp -= nxt_linesize;
403 for (y = 0; y <
height; y++) {
404 for (x = 0; x <
width; x++)
405 tbuffer[x] =
FFABS(prvp[x] - nxtp[x]);
406 prvp += prv_linesize;
407 nxtp += nxt_linesize;
408 tbuffer += tbuf_linesize;
416 const uint8_t *prvp,
int prv_linesize,
417 const uint8_t *nxtp,
int nxt_linesize,
419 int width,
int plane)
421 int x, y,
u,
diff, count;
428 for (y = 2; y <
height - 2; y += 2) {
429 for (x = 1; x <
width - 1; x++) {
432 for (count = 0,
u = x-1;
u < x+2 && count < 2;
u++) {
433 count += dp[
u-tpitch] > 3;
435 count += dp[
u+tpitch] > 3;
440 int upper = 0, lower = 0;
441 for (count = 0,
u = x-1;
u < x+2 && count < 6;
u++) {
442 if (dp[
u-tpitch] > 19) { count++; upper = 1; }
443 if (dp[
u ] > 19) count++;
444 if (dp[
u+tpitch] > 19) { count++; lower = 1; }
447 if (upper && lower) {
450 int upper2 = 0, lower2 = 0;
452 if (y != 2 && dp[
u-2*tpitch] > 19) upper2 = 1;
453 if ( dp[
u- tpitch] > 19) upper = 1;
454 if ( dp[
u+ tpitch] > 19) lower = 1;
455 if (y !=
height-4 && dp[
u+2*tpitch] > 19) lower2 = 1;
457 if ((upper && (lower || upper2)) ||
458 (lower && (upper || lower2)))
469 dstp += dst_linesize;
477 return match < 3 ? 2 - field : 1 + field;
482 if (match ==
mP || match ==
mB)
return fm->
prv;
483 else if (match ==
mN || match ==
mU)
return fm->
nxt;
490 uint64_t accumPc = 0, accumPm = 0, accumPml = 0;
491 uint64_t accumNc = 0, accumNm = 0, accumNml = 0;
492 int norm1, norm2, mtn1, mtn2;
496 for (plane = 0; plane < (fm->
mchroma ? 3 : 1); plane++) {
497 int x, y, temp1, temp2, fbase;
502 const int src_linesize =
src->linesize[plane];
503 const int srcf_linesize = src_linesize << 1;
504 int prv_linesize, nxt_linesize;
505 int prvf_linesize, nxtf_linesize;
508 const int y0a = fm->
y0 >> (plane ? fm->
vsub : 0);
509 const int y1a = fm->
y1 >> (plane ? fm->
vsub : 0);
510 const int startx = (plane == 0 ? 8 : 8 >> fm->
hsub);
511 const int stopx =
width - startx;
512 const uint8_t *srcpf, *srcf, *srcnf;
513 const uint8_t *prvpf, *prvnf, *nxtpf, *nxtnf;
519 srcf = srcp + (fbase + 1) * src_linesize;
520 srcpf = srcf - srcf_linesize;
521 srcnf = srcf + srcf_linesize;
522 mapp = mapp + fbase * map_linesize;
524 prv_linesize = prev->
linesize[plane];
525 prvf_linesize = prv_linesize << 1;
526 prvpf = prev->
data[plane] + fbase * prv_linesize;
527 prvnf = prvpf + prvf_linesize;
532 nxt_linesize = next->
linesize[plane];
533 nxtf_linesize = nxt_linesize << 1;
534 nxtpf = next->
data[plane] + fbase * nxt_linesize;
535 nxtnf = nxtpf + nxtf_linesize;
538 if ((match1 >= 3 && field == 1) || (match1 < 3 && field != 1))
543 mapp + map_linesize, map_linesize,
height,
width, plane);
545 for (y = 2; y <
height - 2; y += 2) {
546 if (y0a == y1a || y < y0a || y > y1a) {
547 for (x = startx; x < stopx; x++) {
548 if (mapp[x] > 0 || mapp[x + map_linesize] > 0) {
549 temp1 = srcpf[x] + (srcf[x] << 2) + srcnf[x];
551 temp2 =
abs(3 * (prvpf[x] + prvnf[x]) - temp1);
552 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
555 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
557 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
561 temp2 =
abs(3 * (nxtpf[x] + nxtnf[x]) - temp1);
562 if (temp2 > 23 && ((mapp[x]&1) || (mapp[x + map_linesize]&1)))
565 if ((mapp[x]&2) || (mapp[x + map_linesize]&2))
567 if ((mapp[x]&4) || (mapp[x + map_linesize]&4))
573 prvpf += prvf_linesize;
574 prvnf += prvf_linesize;
575 srcpf += srcf_linesize;
576 srcf += srcf_linesize;
577 srcnf += srcf_linesize;
578 nxtpf += nxtf_linesize;
579 nxtnf += nxtf_linesize;
580 mapp += map_linesize;
584 if (accumPm < 500 && accumNm < 500 && (accumPml >= 500 || accumNml >= 500) &&
585 FFMAX(accumPml,accumNml) > 3*
FFMIN(accumPml,accumNml)) {
590 norm1 = (
int)((accumPc / 6.0f) + 0.5f);
591 norm2 = (
int)((accumNc / 6.0f) + 0.5f);
592 mtn1 = (
int)((accumPm / 6.0f) + 0.5f);
593 mtn2 = (
int)((accumNm / 6.0f) + 0.5f);
596 mr = ((float)
FFMAX(mtn1, mtn2)) / ((
float)
FFMAX(
FFMAX(norm1,norm2),1));
597 if (((mtn1 >= 500 || mtn2 >= 500) && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1)) ||
598 ((mtn1 >= 1000 || mtn2 >= 1000) && (mtn1*3 < mtn2*2 || mtn2*3 < mtn1*2)) ||
599 ((mtn1 >= 2000 || mtn2 >= 2000) && (mtn1*5 < mtn2*4 || mtn2*5 < mtn1*4)) ||
600 ((mtn1 >= 4000 || mtn2 >= 4000) &&
c2 >
c1))
601 ret = mtn1 > mtn2 ? match2 : match1;
602 else if (mr > 0.005 &&
FFMAX(mtn1, mtn2) > 150 && (mtn1*2 < mtn2*1 || mtn2*2 < mtn1*1))
603 ret = mtn1 > mtn2 ? match2 : match1;
605 ret = norm1 > norm2 ? match2 : match1;
613 for (plane = 0; plane < 4 &&
src->data[plane] &&
src->linesize[plane]; plane++) {
615 const int nb_copy_fields = (plane_h >> 1) + (field ? 0 : (plane_h & 1));
617 src->data[plane] + field*
src->linesize[plane],
src->linesize[plane] << 1,
650 AVFrame **gen_frames,
int field)
654 #define LOAD_COMB(mid) do { \
655 if (combs[mid] < 0) { \
656 if (!gen_frames[mid]) \
657 gen_frames[mid] = create_weave_frame(ctx, mid, field, \
658 fm->prv, fm->src, fm->nxt); \
659 combs[mid] = calc_combed_score(fm, gen_frames[mid]); \
666 if ((combs[m2] * 3 < combs[m1] || (combs[m2] * 2 < combs[m1] && combs[m1] > fm->
combpel)) &&
667 abs(combs[m2] - combs[m1]) >= 30 && combs[m2] < fm->
combpel)
681 int combs[] = { -1, -1, -1, -1, -1 };
682 int order, field,
i, match, sc = 0, ret = 0;
688 #define SLIDING_FRAME_WINDOW(prv, src, nxt) do { \
690 av_frame_free(&prv); \
699 av_assert0(prv && src && nxt); \
718 av_assert0(order == 0 || order == 1 || field == 0 || field == 1);
728 if (!gen_frames[
i]) {
735 combs[0], combs[1], combs[2], combs[3], combs[4]);
738 if (!gen_frames[
mC]) {
769 match =
checkmm(
ctx, combs, match, match == fxo[
mP] ? fxo[
mC] : fxo[
mP], gen_frames, field);
772 match =
checkmm(
ctx, combs, match, fxo[
mN], gen_frames, field);
775 match =
checkmm(
ctx, combs, match, fxo[
mU], gen_frames, field);
778 match =
checkmm(
ctx, combs, match, fxo[
mN], gen_frames, field);
779 match =
checkmm(
ctx, combs, match, fxo[
mU], gen_frames, field);
780 match =
checkmm(
ctx, combs, match, fxo[
mB], gen_frames, field);
784 match =
checkmm(
ctx, combs, match, match == fxo[
mP] ? fxo[
mC] : fxo[
mP], gen_frames, field);
787 match =
checkmm(
ctx, combs, match, fxo[
mU], gen_frames, field);
788 match =
checkmm(
ctx, combs, match, fxo[
mB], gen_frames, field);
801 if (!gen_frames[match]) {
804 dst = gen_frames[match];
805 gen_frames[match] =
NULL;
823 " match=%d combed=%s\n", sc, combs[0], combs[1], combs[2], combs[3], combs[4],
938 const int w = inlink->
w;
939 const int h = inlink->
h;
977 pad.
name =
"clean_src";
1025 fm->
bpc = (
desc->comp[0].depth + 7) / 8;
1029 outlink->
w = inlink->
w;
1030 outlink->
h = inlink->
h;
1044 .
name =
"fieldmatch",
1053 .priv_class = &fieldmatch_class,
static const AVFilterPad inputs[]
static const AVFilterPad outputs[]
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi - 0x80) *(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31)))) #define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac) { } void ff_audio_convert_free(AudioConvert **ac) { if(! *ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);} AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map) { AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method !=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2) { ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc) { av_free(ac);return NULL;} return ac;} in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar) { ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar ? ac->channels :1;} else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;} int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) { int use_generic=1;int len=in->nb_samples;int p;if(ac->dc) { av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
simple assert() macros that are a bit more flexible than ISO C assert().
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
Test and acknowledge the change of status on the link.
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
Take a frame from the link's FIFO and update the link's stats.
void ff_inlink_request_frame(AVFilterLink *link)
Mark that a frame is wanted on the link.
Main libavfilter public API header.
static av_cold int init(AVCodecContext *avctx)
#define flags(name, subs,...)
#define u(width, name, range_min, range_max)
#define AV_CEIL_RSHIFT(a, b)
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
static av_cold int uninit(AVCodecContext *avctx)
mode
Use these values in ebur128_init (or'ed).
static void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
Set the status field of a link from the source filter.
#define FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, filter)
Forward the status on an output link to all input links.
static int ff_outlink_frame_wanted(AVFilterLink *link)
Test if a frame is wanted on an output link.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
#define AVERROR_EOF
End of file.
AVFrame * av_frame_clone(const AVFrame *src)
Create a new frame that references the same data as src.
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define AV_LOG_INFO
Standard information.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void * av_calloc(size_t nmemb, size_t size)
Non-inlined equivalent of av_mallocz_array().
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.
int av_image_alloc(uint8_t *pointers[4], int linesizes[4], int w, int h, enum AVPixelFormat pix_fmt, int align)
Allocate an image with size w and h and pixel format pix_fmt, and fill pointers and linesizes accordi...
static int ff_insert_inpad(AVFilterContext *f, unsigned index, AVFilterPad *p)
Insert a new input pad for the filter.
#define FF_INLINK_IDX(link)
Find the index of a link.
common internal API header
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
static enum AVPixelFormat pix_fmts[]
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
#define AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P14
AVPixelFormat
Pixel format.
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
#define AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV440P10
#define AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P10
#define FF_ARRAY_ELEMS(a)
Describe the class of an AVClass context structure.
A link between two filters.
int w
agreed upon image width
int h
agreed upon image height
AVFilterContext * src
source filter
int64_t frame_count_in
Number of past frames sent through the link.
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0,...
AVFilterContext * dst
dest filter
int format
agreed upon media format
A filter pad used for either input or output.
int(* config_props)(AVFilterLink *link)
Link configuration callback.
const char * name
Pad name.
const char * name
Filter name.
This structure describes decoded (raw) audio or video data.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
int top_field_first
If the content is interlaced, is top field displayed first.
int interlaced_frame
The content of the picture is interlaced.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
int vsub
chroma subsampling values
int combmatch
comb_matching_mode
AVFrame * nxt2
sliding window of the optional second stream
int got_frame[2]
frame request flag for each input stream
uint32_t eof
bitmask for end of stream
AVFrame * nxt
main sliding window of 3 frames
int bpc
bytes per component
#define av_malloc_array(a, b)
timestamp utils, mostly useful for debugging/logging purposes
#define av_ts2timestr(ts, tb)
Convenience macro, the return value should be used only directly in function arguments but never stan...
static int get_field_base(int match, int field)
static void build_abs_diff_mask(const uint8_t *prvp, int prv_linesize, const uint8_t *nxtp, int nxt_linesize, uint8_t *tbuffer, int tbuf_linesize, int width, int height)
static AVFrame * create_weave_frame(AVFilterContext *ctx, int match, int field, const AVFrame *prv, AVFrame *src, const AVFrame *nxt)
static av_cold void fieldmatch_uninit(AVFilterContext *ctx)
static int compare_fields(FieldMatchContext *fm, int match1, int match2, int field)
#define FILTER(xm2, xm1, xp1, xp2)
static AVFrame * select_frame(FieldMatchContext *fm, int match)
static int get_height(const FieldMatchContext *fm, const AVFrame *f, int plane)
static int calc_combed_score(const FieldMatchContext *fm, const AVFrame *src)
static int query_formats(AVFilterContext *ctx)
AVFILTER_DEFINE_CLASS(fieldmatch)
static int config_input(AVFilterLink *inlink)
static int get_width(const FieldMatchContext *fm, const AVFrame *f, int plane)
static int checkmm(AVFilterContext *ctx, int *combs, int m1, int m2, AVFrame **gen_frames, int field)
#define VERTICAL_HALF(y_start, y_end)
static void build_diff_map(FieldMatchContext *fm, const uint8_t *prvp, int prv_linesize, const uint8_t *nxtp, int nxt_linesize, uint8_t *dstp, int dst_linesize, int height, int width, int plane)
Build a map over which pixels differ a lot/a little.
static void fill_buf(uint8_t *data, int w, int h, int linesize, uint8_t v)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFilter ff_vf_fieldmatch
static const AVFilterPad fieldmatch_outputs[]
static int64_t luma_abs_diff(const AVFrame *f1, const AVFrame *f2)
static int activate(AVFilterContext *ctx)
static av_cold int fieldmatch_init(AVFilterContext *ctx)
static int config_output(AVFilterLink *outlink)
#define HAS_FF_AROUND(p, lz)
static const AVOption fieldmatch_options[]
static void copy_fields(const FieldMatchContext *fm, AVFrame *dst, const AVFrame *src, int field)
#define SLIDING_FRAME_WINDOW(prv, src, nxt)
static av_always_inline int diff(const uint32_t a, const uint32_t b)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.