mirror of https://github.com/FFmpeg/FFmpeg.git
Stefano Sabatini
13 years ago
parent
e701b0cf75
commit
6efce3a894
5 changed files with 1 additions and 186 deletions
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/*
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* This file is part of MPlayer. |
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* |
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* MPlayer is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* MPlayer is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with MPlayer; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <inttypes.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 "cpudetect.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/video_out.h" |
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struct vf_priv_s { |
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uint8_t *buf[2]; |
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float hue; |
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float saturation; |
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}; |
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static void process_C(uint8_t *udst, uint8_t *vdst, uint8_t *usrc, uint8_t *vsrc, int dststride, int srcstride, |
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int w, int h, float hue, float sat) |
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{ |
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int i; |
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const int s= rint(sin(hue) * (1<<16) * sat); |
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const int c= rint(cos(hue) * (1<<16) * sat); |
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while (h--) { |
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for (i = 0; i<w; i++) |
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{ |
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const int u= usrc[i] - 128; |
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const int v= vsrc[i] - 128; |
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int new_u= (c*u - s*v + (1<<15) + (128<<16))>>16; |
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int new_v= (s*u + c*v + (1<<15) + (128<<16))>>16; |
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if(new_u & 768) new_u= (-new_u)>>31; |
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if(new_v & 768) new_v= (-new_v)>>31; |
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udst[i]= new_u; |
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vdst[i]= new_v; |
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} |
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usrc += srcstride; |
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vsrc += srcstride; |
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udst += dststride; |
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vdst += dststride; |
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} |
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} |
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static void (*process)(uint8_t *udst, uint8_t *vdst, uint8_t *usrc, uint8_t *vsrc, int dststride, int srcstride, |
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int w, int h, float hue, float sat); |
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/* FIXME: add packed yuv version of process */ |
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static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) |
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{ |
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mp_image_t *dmpi; |
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dmpi=vf_get_image(vf->next, mpi->imgfmt, |
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MP_IMGTYPE_EXPORT, 0, |
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mpi->w, mpi->h); |
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dmpi->planes[0] = mpi->planes[0]; |
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dmpi->stride[0] = mpi->stride[0]; |
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dmpi->stride[1] = mpi->stride[1]; |
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dmpi->stride[2] = mpi->stride[2]; |
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if (!vf->priv->buf[0]){ |
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vf->priv->buf[0] = malloc(mpi->stride[1]*mpi->h >> mpi->chroma_y_shift); |
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vf->priv->buf[1] = malloc(mpi->stride[2]*mpi->h >> mpi->chroma_y_shift); |
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} |
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if (vf->priv->hue == 0 && vf->priv->saturation == 1){ |
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dmpi->planes[1] = mpi->planes[1]; |
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dmpi->planes[2] = mpi->planes[2]; |
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}else { |
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dmpi->planes[1] = vf->priv->buf[0]; |
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dmpi->planes[2] = vf->priv->buf[1]; |
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process(dmpi->planes[1], dmpi->planes[2], |
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mpi->planes[1], mpi->planes[2], |
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dmpi->stride[1],mpi->stride[1], |
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mpi->w>> mpi->chroma_x_shift, mpi->h>> mpi->chroma_y_shift, |
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vf->priv->hue, vf->priv->saturation); |
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} |
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return vf_next_put_image(vf,dmpi, pts); |
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} |
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static int control(struct vf_instance *vf, int request, void* data) |
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{ |
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vf_equalizer_t *eq; |
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switch (request) { |
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case VFCTRL_SET_EQUALIZER: |
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eq = data; |
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if (!strcmp(eq->item,"hue")) { |
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vf->priv->hue = eq->value * M_PI / 100; |
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return CONTROL_TRUE; |
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} else if (!strcmp(eq->item,"saturation")) { |
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vf->priv->saturation = (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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case VFCTRL_GET_EQUALIZER: |
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eq = data; |
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if (!strcmp(eq->item,"hue")) { |
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eq->value = rint(vf->priv->hue *100 / M_PI); |
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return CONTROL_TRUE; |
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}else if (!strcmp(eq->item,"saturation")) { |
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eq->value = rint(vf->priv->saturation*100 - 100); |
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return CONTROL_TRUE; |
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} |
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break; |
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} |
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return vf_next_control(vf, request, data); |
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} |
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static int query_format(struct vf_instance *vf, unsigned int fmt) |
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{ |
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switch (fmt) { |
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case IMGFMT_YVU9: |
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case IMGFMT_IF09: |
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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_444P: |
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case IMGFMT_422P: |
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case IMGFMT_411P: |
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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 void uninit(struct vf_instance *vf) |
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{ |
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free(vf->priv->buf[0]); |
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free(vf->priv->buf[1]); |
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free(vf->priv); |
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} |
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static int vf_open(vf_instance_t *vf, char *args) |
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{ |
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vf->control=control; |
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vf->query_format=query_format; |
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vf->put_image=put_image; |
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vf->uninit=uninit; |
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vf->priv = malloc(sizeof(struct vf_priv_s)); |
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memset(vf->priv, 0, sizeof(struct vf_priv_s)); |
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sscanf(args, "%f:%f", &vf->priv->hue, &vf->priv->saturation); |
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vf->priv->hue *= M_PI / 180.0; |
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process = process_C; |
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return 1; |
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} |
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const vf_info_t vf_info_hue = { |
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"hue changer", |
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"hue", |
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"Michael Niedermayer", |
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"", |
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vf_open, |
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}; |
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