X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Fvf_phase.c;h=556620d36cb86f605fc281f2765b82931feddda9;hb=a04ad248a05e7b613abe09b3bb067f555108d794;hp=fadeb6266dcf5c33cb188c0f1073b6a0e347a0d8;hpb=2d62e06ff6a9f3dbd78136c1dc4a315a727c6f00;p=ffmpeg diff --git a/libavfilter/vf_phase.c b/libavfilter/vf_phase.c index fadeb6266dc..556620d36cb 100644 --- a/libavfilter/vf_phase.c +++ b/libavfilter/vf_phase.c @@ -39,6 +39,29 @@ enum PhaseMode { AUTO_ANALYZE }; +#define DEPTH 8 +#include "phase_template.c" + +#undef DEPTH +#define DEPTH 9 +#include "phase_template.c" + +#undef DEPTH +#define DEPTH 10 +#include "phase_template.c" + +#undef DEPTH +#define DEPTH 12 +#include "phase_template.c" + +#undef DEPTH +#define DEPTH 14 +#include "phase_template.c" + +#undef DEPTH +#define DEPTH 16 +#include "phase_template.c" + typedef struct PhaseContext { const AVClass *class; int mode; ///format); int ret; + switch (desc->comp[0].depth) { + case 8: s->analyze_plane = analyze_plane_8; break; + case 9: s->analyze_plane = analyze_plane_9; break; + case 10: s->analyze_plane = analyze_plane_10; break; + case 12: s->analyze_plane = analyze_plane_12; break; + case 14: s->analyze_plane = analyze_plane_14; break; + case 16: s->analyze_plane = analyze_plane_16; break; + default: av_assert0(0); + }; + if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0) return ret; @@ -100,149 +158,6 @@ static int config_input(AVFilterLink *inlink) return 0; } -/* - * This macro interpolates the value of both fields at a point halfway - * between lines and takes the squared difference. In field resolution - * the point is a quarter pixel below a line in one field and a quarter - * pixel above a line in other. - * - * (The result is actually multiplied by 25) - */ -#define DIFF(a, as, b, bs) ((t) = ((*(a) - (b)[bs]) << 2) + (a)[(as) << 1] - (b)[-(bs)], (t) * (t)) - -/* - * Find which field combination has the smallest average squared difference - * between the fields. - */ -static enum PhaseMode analyze_plane(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new) -{ - double bdiff, tdiff, pdiff; - - if (mode == AUTO) { - mode = new->interlaced_frame ? new->top_field_first ? - TOP_FIRST : BOTTOM_FIRST : PROGRESSIVE; - } else if (mode == AUTO_ANALYZE) { - mode = new->interlaced_frame ? new->top_field_first ? - TOP_FIRST_ANALYZE : BOTTOM_FIRST_ANALYZE : FULL_ANALYZE; - } - - if (mode <= BOTTOM_FIRST) { - bdiff = pdiff = tdiff = 65536.0; - } else { - const int ns = new->linesize[0]; - const int os = old->linesize[0]; - const uint8_t *nptr = new->data[0]; - const uint8_t *optr = old->data[0]; - const int h = new->height; - const int w = new->width; - int bdif, tdif, pdif; - double scale; - - int top = 0, t; - const uint8_t *rend, *end = nptr + (h - 2) * ns; - - bdiff = pdiff = tdiff = 0.0; - - nptr += ns; - optr += os; - while (nptr < end) { - pdif = tdif = bdif = 0; - - switch (mode) { - case TOP_FIRST_ANALYZE: - if (top) { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - tdif += DIFF(nptr, ns, optr, os); - } - } else { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - tdif += DIFF(optr, os, nptr, ns); - } - } - break; - case BOTTOM_FIRST_ANALYZE: - if (top) { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - bdif += DIFF(optr, os, nptr, ns); - } - } else { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - bdif += DIFF(nptr, ns, optr, os); - } - } - break; - case ANALYZE: - if (top) { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - tdif += DIFF(nptr, ns, optr, os); - bdif += DIFF(optr, os, nptr, ns); - } - } else { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - bdif += DIFF(nptr, ns, optr, os); - tdif += DIFF(optr, os, nptr, ns); - } - } - break; - case FULL_ANALYZE: - if (top) { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - tdif += DIFF(nptr, ns, optr, os); - bdif += DIFF(optr, os, nptr, ns); - } - } else { - for (rend = nptr + w; nptr < rend; nptr++, optr++) { - pdif += DIFF(nptr, ns, nptr, ns); - bdif += DIFF(nptr, ns, optr, os); - tdif += DIFF(optr, os, nptr, ns); - } - } - break; - default: - av_assert0(0); - } - - pdiff += (double)pdif; - tdiff += (double)tdif; - bdiff += (double)bdif; - nptr += ns - w; - optr += os - w; - top ^= 1; - } - - scale = 1.0 / (w * (h - 3)) / 25.0; - pdiff *= scale; - tdiff *= scale; - bdiff *= scale; - - if (mode == TOP_FIRST_ANALYZE) { - bdiff = 65536.0; - } else if (mode == BOTTOM_FIRST_ANALYZE) { - tdiff = 65536.0; - } else if (mode == ANALYZE) { - pdiff = 65536.0; - } - - if (bdiff < pdiff && bdiff < tdiff) { - mode = BOTTOM_FIRST; - } else if (tdiff < pdiff && tdiff < bdiff) { - mode = TOP_FIRST; - } else { - mode = PROGRESSIVE; - } - } - - av_log(ctx, AV_LOG_DEBUG, "mode=%c tdiff=%f bdiff=%f pdiff=%f\n", - mode == BOTTOM_FIRST ? 'b' : mode == TOP_FIRST ? 't' : 'p', - tdiff, bdiff, pdiff); - return mode; -} - static int filter_frame(AVFilterLink *inlink, AVFrame *in) { AVFilterContext *ctx = inlink->dst; @@ -272,7 +187,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) s->frame = in; mode = PROGRESSIVE; } else { - mode = analyze_plane(ctx, s->mode, s->frame, in); + mode = s->analyze_plane(ctx, s->mode, s->frame, in); } for (plane = 0; plane < s->nb_planes; plane++) { @@ -320,7 +235,7 @@ static const AVFilterPad phase_outputs[] = { { NULL } }; -AVFilter ff_vf_phase = { +const AVFilter ff_vf_phase = { .name = "phase", .description = NULL_IF_CONFIG_SMALL("Phase shift fields."), .priv_size = sizeof(PhaseContext), @@ -330,4 +245,5 @@ AVFilter ff_vf_phase = { .inputs = phase_inputs, .outputs = phase_outputs, .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, + .process_command = ff_filter_process_command, };