mirror of
https://github.com/mpv-player/mpv
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Based on the discussion in the other thread I made a new
patch to vf_eq2.c that essentially combines vf_eq.c and vf_eq2.c. patch by Hampa Hug <hampa@hampa.ch> based on R/G/B gamma patch by Daniel Moreno <comac2k@terra.es> some modifications (credits, buffer allocation, etc) by me git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9214 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi
parent
95d4edb1b0
commit
c33cfc6808
@ -1,10 +1,11 @@
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/*
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* vf_eq2.c
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*
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* LUT-based software equalizer (brightness, contrast, gamma)
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*
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* Hampa Hug <hhug@student.ethz.ch>
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* Software equalizer (brightness, contrast, gamma, saturation)
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*
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* Hampa Hug <hampa@hampa.ch> (original LUT gamma/contrast/brightness filter)
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* Daniel Moreno <comac@comac.darktech.org> (saturation, R/G/B gamma support)
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* Richard Felker (original MMX contrast/brightness code (vf_eq.c))
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*/
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#include <stdio.h>
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@ -12,8 +13,9 @@
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#include <string.h>
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#include <math.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#include "config.h"
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#include "mp_msg.h"
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#include "cpudetect.h"
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#include "img_format.h"
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#include "mp_image.h"
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@ -24,71 +26,159 @@
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#endif
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/* Per channel parameters */
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typedef struct eq2_param_t {
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unsigned char lut[256];
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int lut_clean;
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void (*adjust) (struct eq2_param_t *par, unsigned char *dst, unsigned char *src,
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unsigned w, unsigned h, unsigned dstride, unsigned sstride);
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double c;
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double b;
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double g;
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} eq2_param_t;
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typedef struct vf_priv_s {
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unsigned char *buf;
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int buf_w;
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int buf_h;
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eq2_param_t param[3];
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double contrast;
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double bright;
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double gamma;
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double brightness;
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double saturation;
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unsigned char lut[256];
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double gamma;
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double rgamma;
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double ggamma;
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double bgamma;
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unsigned buf_w[3];
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unsigned buf_h[3];
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unsigned char *buf[3];
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} vf_eq2_t;
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static
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void create_lut (vf_eq2_t *eq2)
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void create_lut (eq2_param_t *par)
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{
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unsigned i;
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double c, b, g;
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double v;
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double g, v;
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c = eq2->contrast;
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b = eq2->bright;
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g = eq2->gamma;
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g = par->g;
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if ((g < 0.001) || (g > 1000.0)) {
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g = 1.0;
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}
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fprintf (stderr, "vf_eq2: c=%.2f b=%.2f g=%.4f\n", c, b, g);
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g = 1.0 / g;
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for (i = 0; i < 256; i++) {
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v = (double) i / 255.0;
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v = c * (v - 0.5) + 0.5 + b;
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v = par->c * (v - 0.5) + 0.5 + par->b;
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if (v <= 0.0) {
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eq2->lut[i] = 0;
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par->lut[i] = 0;
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}
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else {
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v = pow (v, g);
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if (v >= 1.0) {
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eq2->lut[i] = 255;
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par->lut[i] = 255;
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}
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else {
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/* we divided by 255.0 so now we also multiply by 255.0, not
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by 256.0. "+ 0.5" ensures proper rounding */
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eq2->lut[i] = (unsigned char) (255.0 * v + 0.5);
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par->lut[i] = (unsigned char) (256.0 * v);
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}
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}
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}
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par->lut_clean = 1;
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}
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/* could inline this */
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#ifdef HAVE_MMX
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static
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void process (unsigned char *dst, int dstride, unsigned char *src, int sstride,
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int w, int h, unsigned char lut[256])
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void affine_1d_MMX (eq2_param_t *par, unsigned char *dst, unsigned char *src,
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unsigned w, unsigned h, unsigned dstride, unsigned sstride)
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{
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int i, j;
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unsigned i;
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int contrast, brightness;
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unsigned dstep, sstep;
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int pel;
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short brvec[4];
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short contvec[4];
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// printf("\nmmx: src=%p dst=%p w=%d h=%d ds=%d ss=%d\n",src,dst,w,h,dstride,sstride);
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contrast = (int) (par->c * 256 * 16);
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brightness = ((int) (100.0 * par->b + 100.0) * 511) / 200 - 128 - contrast / 32;
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brvec[0] = brvec[1] = brvec[2] = brvec[3] = brightness;
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contvec[0] = contvec[1] = contvec[2] = contvec[3] = contrast;
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sstep = sstride - w;
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dstep = dstride - w;
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while (h-- > 0) {
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asm volatile (
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"movq (%5), %%mm3 \n\t"
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"movq (%6), %%mm4 \n\t"
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"pxor %%mm0, %%mm0 \n\t"
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"movl %4, %%eax\n\t"
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".balign 16 \n\t"
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"1: \n\t"
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"movq (%0), %%mm1 \n\t"
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"movq (%0), %%mm2 \n\t"
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"punpcklbw %%mm0, %%mm1 \n\t"
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"punpckhbw %%mm0, %%mm2 \n\t"
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"psllw $4, %%mm1 \n\t"
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"psllw $4, %%mm2 \n\t"
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"pmulhw %%mm4, %%mm1 \n\t"
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"pmulhw %%mm4, %%mm2 \n\t"
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"paddw %%mm3, %%mm1 \n\t"
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"paddw %%mm3, %%mm2 \n\t"
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"packuswb %%mm2, %%mm1 \n\t"
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"addl $8, %0 \n\t"
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"movq %%mm1, (%1) \n\t"
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"addl $8, %1 \n\t"
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"decl %%eax \n\t"
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"jnz 1b \n\t"
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: "=r" (src), "=r" (dst)
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: "0" (src), "1" (dst), "r" (w >> 3), "r" (brvec), "r" (contvec)
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: "%eax"
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);
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for (i = w & 7; i > 0; i--) {
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pel = ((*src++ * contrast) >> 12) + brightness;
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if (pel & 768) {
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pel = (-pel) >> 31;
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}
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*dst++ = pel;
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}
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src += sstep;
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dst += dstep;
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}
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asm volatile ( "emms \n\t" ::: "memory" );
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}
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#endif
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static
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void apply_lut (eq2_param_t *par, unsigned char *dst, unsigned char *src,
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unsigned w, unsigned h, unsigned dstride, unsigned sstride)
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{
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unsigned i, j;
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unsigned char *lut;
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if (!par->lut_clean) {
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create_lut (par);
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}
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lut = par->lut;
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for (j = 0; j < h; j++) {
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for (i = 0; i < w; i++) {
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dst[i] = lut[src[i]];
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}
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src += sstride;
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dst += dstride;
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}
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@ -97,34 +187,130 @@ void process (unsigned char *dst, int dstride, unsigned char *src, int sstride,
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static
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int put_image (vf_instance_t *vf, mp_image_t *src)
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{
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mp_image_t *dst;
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vf_eq2_t *eq2;
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unsigned i;
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vf_eq2_t *eq2;
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mp_image_t *dst;
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unsigned long img_n,img_c;
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eq2 = vf->priv;
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if ((eq2->buf == NULL) || (eq2->buf_w != src->stride[0]) || (eq2->buf_h != src->h)) {
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eq2->buf = (unsigned char *) realloc (eq2->buf, src->stride[0] * src->h);
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eq2->buf_w = src->stride[0];
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eq2->buf_h = src->h;
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if ((eq2->buf_w[0] != src->w) || (eq2->buf_h[0] != src->h)) {
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eq2->buf_w[0] = src->w;
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eq2->buf_h[0] = src->h;
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eq2->buf_w[1] = eq2->buf_w[2] = src->w >> src->chroma_x_shift;
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eq2->buf_h[1] = eq2->buf_h[2] = src->h >> src->chroma_y_shift;
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img_n = eq2->buf_w[0]*eq2->buf_h[0];
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if(src->num_planes>1){
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img_c = eq2->buf_w[1]*eq2->buf_h[1];
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eq2->buf[0] = (unsigned char *) realloc (eq2->buf[0], img_n + 2*img_c);
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eq2->buf[1] = eq2->buf[0] + img_n;
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eq2->buf[2] = eq2->buf[1] + img_c;
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} else
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eq2->buf[0] = (unsigned char *) realloc (eq2->buf[0], img_n);
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}
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dst = vf_get_image (vf->next, src->imgfmt, MP_IMGTYPE_EXPORT, 0, src->w, src->h);
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dst->stride[0] = src->stride[0];
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dst->stride[1] = src->stride[1];
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dst->stride[2] = src->stride[2];
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dst->planes[0] = vf->priv->buf;
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dst->planes[1] = src->planes[1];
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dst->planes[2] = src->planes[2];
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for (i = 0; i < ((src->num_planes>1)?3:1); i++) {
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if (eq2->param[i].adjust != NULL) {
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dst->planes[i] = eq2->buf[i];
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dst->stride[i] = eq2->buf_w[i];
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process (
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dst->planes[0], dst->stride[0], src->planes[0], src->stride[0],
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src->w, src->h, eq2->lut
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);
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eq2->param[i].adjust (&eq2->param[i], dst->planes[i], src->planes[i],
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eq2->buf_w[i], eq2->buf_h[i], dst->stride[i], src->stride[i]);
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}
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else {
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dst->planes[i] = src->planes[i];
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dst->stride[i] = src->stride[i];
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}
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}
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return vf_next_put_image (vf, dst);
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}
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static
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void check_values (eq2_param_t *par)
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{
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/* yuck! floating point comparisons... */
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if ((par->c == 1.0) && (par->b == 0.0) && (par->g == 1.0)) {
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par->adjust = NULL;
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}
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#ifdef HAVE_MMX
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else if (par->g == 1.0 && gCpuCaps.hasMMX) {
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par->adjust = &affine_1d_MMX;
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}
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#endif
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else {
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par->adjust = &apply_lut;
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}
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}
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static
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void print_values (vf_eq2_t *eq2)
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{
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mp_msg (MSGT_VFILTER, MSGL_V, "vf_eq2: c=%.2f b=%.2f g=%.4f s=%.2f \n",
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eq2->contrast, eq2->brightness, eq2->gamma, eq2->saturation
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);
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}
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static
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void set_contrast (vf_eq2_t *eq2, double c)
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{
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eq2->contrast = c;
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eq2->param[0].c = c;
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eq2->param[0].lut_clean = 0;
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check_values (&eq2->param[0]);
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print_values (eq2);
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}
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static
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void set_brightness (vf_eq2_t *eq2, double b)
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{
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eq2->brightness = b;
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eq2->param[0].b = b;
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eq2->param[0].lut_clean = 0;
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check_values (&eq2->param[0]);
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print_values (eq2);
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}
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static
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void set_gamma (vf_eq2_t *eq2, double g)
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{
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eq2->gamma = g;
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eq2->param[0].g = eq2->gamma * eq2->ggamma;
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eq2->param[1].g = sqrt (eq2->bgamma / eq2->ggamma);
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eq2->param[2].g = sqrt (eq2->rgamma / eq2->ggamma);
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eq2->param[0].lut_clean = 0;
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eq2->param[1].lut_clean = 0;
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eq2->param[2].lut_clean = 0;
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check_values (&eq2->param[0]);
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check_values (&eq2->param[1]);
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check_values (&eq2->param[2]);
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print_values (eq2);
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}
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static
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void set_saturation (vf_eq2_t *eq2, double s)
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{
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eq2->saturation = s;
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eq2->param[1].c = s;
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eq2->param[2].c = s;
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eq2->param[1].lut_clean = 0;
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eq2->param[2].lut_clean = 0;
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check_values (&eq2->param[1]);
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check_values (&eq2->param[2]);
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print_values (eq2);
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}
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static
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int control (vf_instance_t *vf, int request, void *data)
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{
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@ -135,18 +321,19 @@ int control (vf_instance_t *vf, int request, void *data)
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eq = (vf_equalizer_t *) data;
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if (strcmp (eq->item, "gamma") == 0) {
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vf->priv->gamma = exp (log (8.0) * eq->value / 100.0);
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create_lut (vf->priv);
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set_gamma (vf->priv, exp (log (8.0) * eq->value / 100.0));
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return CONTROL_TRUE;
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}
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else if (strcmp (eq->item, "contrast") == 0) {
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vf->priv->contrast = (1.0 / 100.0) * (eq->value + 100);
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create_lut (vf->priv);
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set_contrast (vf->priv, (1.0 / 100.0) * (eq->value + 100));
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return CONTROL_TRUE;
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}
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else if (strcmp (eq->item, "brightness") == 0) {
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vf->priv->bright = (1.0 / 100.0) * eq->value;
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create_lut (vf->priv);
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set_brightness (vf->priv, (1.0 / 100.0) * eq->value);
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return CONTROL_TRUE;
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}
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else if (strcmp (eq->item, "saturation") == 0) {
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set_saturation (vf->priv, (double) (eq->value + 100) / 100.0);
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return CONTROL_TRUE;
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}
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break;
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@ -162,7 +349,11 @@ int control (vf_instance_t *vf, int request, void *data)
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return CONTROL_TRUE;
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}
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else if (strcmp (eq->item, "brightness") == 0) {
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eq->value = (int) (100.0 * vf->priv->bright);
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eq->value = (int) (100.0 * vf->priv->brightness);
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return CONTROL_TRUE;
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}
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else if (strcmp (eq->item, "saturation") == 0) {
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eq->value = (int) (100.0 * vf->priv->saturation) - 100;
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return CONTROL_TRUE;
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}
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break;
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@ -180,10 +371,8 @@ int query_format (vf_instance_t *vf, unsigned fmt)
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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case IMGFMT_CLPL:
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case IMGFMT_Y800:
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case IMGFMT_Y8:
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case IMGFMT_NV12:
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case IMGFMT_444P:
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case IMGFMT_422P:
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case IMGFMT_411P:
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@ -197,7 +386,7 @@ static
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void uninit (vf_instance_t *vf)
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{
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if (vf->priv != NULL) {
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free (vf->priv->buf);
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free (vf->priv->buf[0]);
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free (vf->priv);
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}
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}
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@ -205,7 +394,9 @@ void uninit (vf_instance_t *vf)
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static
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int open (vf_instance_t *vf, char *args)
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{
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unsigned i;
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vf_eq2_t *eq2;
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double par[7];
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vf->control = control;
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vf->query_format = query_format;
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@ -215,33 +406,62 @@ int open (vf_instance_t *vf, char *args)
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vf->priv = (vf_eq2_t *) malloc (sizeof (vf_eq2_t));
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eq2 = vf->priv;
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eq2->buf = NULL;
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eq2->buf_w = 0;
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eq2->buf_h = 0;
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for (i = 0; i < 3; i++) {
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eq2->buf[i] = NULL;
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eq2->buf_w[i] = 0;
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eq2->buf_h[i] = 0;
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eq2->gamma = 1.0;
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eq2->contrast = 1.0;
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eq2->bright = 0.0;
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if (args != NULL) {
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#ifdef USE_SETLOCALE
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setlocale( LC_NUMERIC, "C" );
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#endif
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sscanf (args, "%lf:%lf:%lf", &eq2->gamma, &eq2->contrast, &eq2->bright);
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#ifdef USE_SETLOCALE
|
||||
setlocale( LC_NUMERIC, "" );
|
||||
#endif
|
||||
eq2->param[i].adjust = NULL;
|
||||
eq2->param[i].c = 1.0;
|
||||
eq2->param[i].b = 0.0;
|
||||
eq2->param[i].g = 1.0;
|
||||
eq2->param[i].lut_clean = 0;
|
||||
}
|
||||
|
||||
create_lut (eq2);
|
||||
eq2->contrast = 1.0;
|
||||
eq2->brightness = 0.0;
|
||||
eq2->saturation = 1.0;
|
||||
|
||||
eq2->gamma = 1.0;
|
||||
eq2->rgamma = 1.0;
|
||||
eq2->ggamma = 1.0;
|
||||
eq2->bgamma = 1.0;
|
||||
|
||||
if (args != NULL) {
|
||||
par[0] = 1.0;
|
||||
par[1] = 1.0;
|
||||
par[2] = 0.0;
|
||||
par[3] = 1.0;
|
||||
par[4] = 1.0;
|
||||
par[5] = 1.0;
|
||||
par[6] = 1.0;
|
||||
#ifdef USE_SETLOCALE
|
||||
setlocale (LC_NUMERIC, "C");
|
||||
#endif
|
||||
sscanf (args, "%lf:%lf:%lf:%lf:%lf:%lf:%lf",
|
||||
par, par + 1, par + 2, par + 3, par + 4, par + 5, par + 6
|
||||
);
|
||||
#ifdef USE_SETLOCALE
|
||||
setlocale (LC_NUMERIC, "");
|
||||
#endif
|
||||
|
||||
eq2->rgamma = par[4];
|
||||
eq2->ggamma = par[5];
|
||||
eq2->bgamma = par[6];
|
||||
|
||||
set_gamma (eq2, par[0]);
|
||||
set_contrast (eq2, par[1]);
|
||||
set_brightness (eq2, par[2]);
|
||||
set_saturation (eq2, par[3]);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
vf_info_t vf_info_eq2 = {
|
||||
"LUT-based software equalizer",
|
||||
"Software equalizer",
|
||||
"eq2",
|
||||
"Hampa Hug",
|
||||
"Hampa Hug, Daniel Moreno, Richard Felker",
|
||||
"",
|
||||
&open
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user