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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 "mp_image.h" |
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#include "mp_msg.h" |
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#include "vf.h" |
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#include "libvo/fastmemcpy.h" |
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#include "libavutil/common.h" |
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struct vf_priv_s { |
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int x, y, w, h; |
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}; |
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static int |
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config(struct vf_instance *vf, |
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int width, int height, int d_width, int d_height, |
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unsigned int flags, unsigned int outfmt) |
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{ |
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if (vf->priv->w < 0 || width < vf->priv->w) |
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vf->priv->w = width; |
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if (vf->priv->h < 0 || height < vf->priv->h) |
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vf->priv->h = height; |
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if (vf->priv->x < 0) |
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vf->priv->x = (width - vf->priv->w) / 2; |
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if (vf->priv->y < 0) |
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vf->priv->y = (height - vf->priv->h) / 2; |
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if (vf->priv->w + vf->priv->x > width |
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|| vf->priv->h + vf->priv->y > height) { |
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mp_msg(MSGT_VFILTER,MSGL_WARN,"rectangle: bad position/width/height - rectangle area is out of the original!\n"); |
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return 0; |
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} |
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return vf_next_config(vf, width, height, d_width, d_height, flags, outfmt); |
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} |
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static int |
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control(struct vf_instance *vf, int request, void *data) |
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{ |
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const int *const tmp = data; |
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switch(request){ |
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case VFCTRL_CHANGE_RECTANGLE: |
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switch (tmp[0]){ |
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case 0: |
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vf->priv->w += tmp[1]; |
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return 1; |
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break; |
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case 1: |
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vf->priv->h += tmp[1]; |
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return 1; |
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break; |
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case 2: |
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vf->priv->x += tmp[1]; |
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return 1; |
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break; |
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case 3: |
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vf->priv->y += tmp[1]; |
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return 1; |
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break; |
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default: |
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mp_msg(MSGT_VFILTER,MSGL_FATAL,"Unknown param %d \n", tmp[0]); |
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return 0; |
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} |
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} |
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return vf_next_control(vf, request, data); |
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return 0; |
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} |
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static int |
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put_image(struct vf_instance *vf, mp_image_t* mpi, double pts){ |
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mp_image_t* dmpi; |
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unsigned int bpp = mpi->bpp / 8; |
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int x, y, w, h; |
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dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_TEMP, |
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MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE, |
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mpi->w, mpi->h); |
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memcpy_pic(dmpi->planes[0],mpi->planes[0],mpi->w*bpp, mpi->h, |
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dmpi->stride[0],mpi->stride[0]); |
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if(mpi->flags&MP_IMGFLAG_PLANAR && mpi->flags&MP_IMGFLAG_YUV){ |
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memcpy_pic(dmpi->planes[1],mpi->planes[1], |
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mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, |
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dmpi->stride[1],mpi->stride[1]); |
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memcpy_pic(dmpi->planes[2],mpi->planes[2], |
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mpi->w>>mpi->chroma_x_shift, mpi->h>>mpi->chroma_y_shift, |
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dmpi->stride[2],mpi->stride[2]); |
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} |
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/* Draw the rectangle */ |
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mp_msg(MSGT_VFILTER,MSGL_INFO, "rectangle: -vf rectangle=%d:%d:%d:%d \n", vf->priv->w, vf->priv->h, vf->priv->x, vf->priv->y); |
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x = FFMIN(vf->priv->x, dmpi->width); |
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x = FFMAX(x, 0); |
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w = vf->priv->x + vf->priv->w - 1 - x; |
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w = FFMIN(w, dmpi->width - x); |
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w = FFMAX(w, 0); |
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y = FFMIN(vf->priv->y, dmpi->height); |
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y = FFMAX(y, 0); |
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h = vf->priv->y + vf->priv->h - 1 - y; |
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h = FFMIN(h, dmpi->height - y); |
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h = FFMAX(h, 0); |
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if (0 <= vf->priv->y && vf->priv->y <= dmpi->height) { |
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unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp; |
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unsigned int count = w * bpp; |
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while (count--) |
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p[count] = 0xff - p[count]; |
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} |
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if (h != 1 && vf->priv->y + vf->priv->h - 1 <= mpi->height) { |
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unsigned char *p = dmpi->planes[0] + (vf->priv->y + vf->priv->h - 1) * dmpi->stride[0] + x * bpp; |
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unsigned int count = w * bpp; |
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while (count--) |
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p[count] = 0xff - p[count]; |
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} |
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if (0 <= vf->priv->x && vf->priv->x <= dmpi->width) { |
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unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + x * bpp; |
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unsigned int count = h; |
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while (count--) { |
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unsigned int i = bpp; |
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while (i--) |
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p[i] = 0xff - p[i]; |
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p += dmpi->stride[0]; |
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} |
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} |
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if (w != 1 && vf->priv->x + vf->priv->w - 1 <= mpi->width) { |
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unsigned char *p = dmpi->planes[0] + y * dmpi->stride[0] + (vf->priv->x + vf->priv->w - 1) * bpp; |
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unsigned int count = h; |
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while (count--) { |
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unsigned int i = bpp; |
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while (i--) |
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p[i] = 0xff - p[i]; |
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p += dmpi->stride[0]; |
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} |
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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 |
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vf_open(vf_instance_t *vf, char *args) { |
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vf->config = config; |
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vf->control = control; |
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vf->put_image = put_image; |
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vf->priv = malloc(sizeof(struct vf_priv_s)); |
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vf->priv->x = -1; |
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vf->priv->y = -1; |
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vf->priv->w = -1; |
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vf->priv->h = -1; |
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if (args) |
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sscanf(args, "%d:%d:%d:%d", |
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&vf->priv->w, &vf->priv->h, &vf->priv->x, &vf->priv->y); |
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return 1; |
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} |
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const vf_info_t vf_info_rectangle = { |
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"draw rectangle", |
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"rectangle", |
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"Kim Minh Kaplan", |
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"", |
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vf_open, |
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NULL |
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}; |