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freeswitch/src/switch_core_video.c
Anthony Minessale e14ad07a26 FS-7500: move function to core
2015-05-28 12:46:58 -05:00

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/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Seven Du <dujinfang@gmail.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* switch_core_video.c -- Core Video
*
*/
#include <switch.h>
SWITCH_DECLARE(switch_image_t *)switch_img_alloc(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align)
{
return (switch_image_t *)vpx_img_alloc((vpx_image_t *)img, (vpx_img_fmt_t)fmt, d_w, d_h, align);
}
SWITCH_DECLARE(switch_image_t *)switch_img_wrap(switch_image_t *img,
switch_img_fmt_t fmt,
unsigned int d_w,
unsigned int d_h,
unsigned int align,
unsigned char *img_data)
{
return (switch_image_t *)vpx_img_wrap((vpx_image_t *)img, (vpx_img_fmt_t)fmt, d_w, d_h, align, img_data);
}
SWITCH_DECLARE(int) switch_img_set_rect(switch_image_t *img,
unsigned int x,
unsigned int y,
unsigned int w,
unsigned int h)
{
return vpx_img_set_rect((vpx_image_t *)img, x, y, w, h);
}
SWITCH_DECLARE(void) switch_img_flip(switch_image_t *img)
{
vpx_img_flip((vpx_image_t *)img);
}
SWITCH_DECLARE(void) switch_img_free(switch_image_t **img)
{
if (img && *img) {
vpx_img_free((vpx_image_t *)*img);
*img = NULL;
}
}
// simple implementation to patch a small img to a big IMG at position x,y
SWITCH_DECLARE(void) switch_img_patch(switch_image_t *IMG, switch_image_t *img, int x, int y)
{
int i, j, k;
int W = IMG->d_w;
int H = IMG->d_h;
int w = img->d_w;
int h = img->d_h;
switch_assert(img->fmt == SWITCH_IMG_FMT_I420);
switch_assert(IMG->fmt == SWITCH_IMG_FMT_I420);
for (i = y; i < (y + h) && i < H; i++) {
for (j = x; j < (x + w) && j < W; j++) {
IMG->planes[0][i * IMG->stride[0] + j] = img->planes[0][(i - y) * img->stride[0] + (j - x)];
}
}
for (i = y; i < (y + h) && i < H; i+=4) {
for (j = x; j < (x + w) && j < W; j+=4) {
for (k = 1; k <= 2; k++) {
IMG->planes[k][i/2 * IMG->stride[k] + j/2] = img->planes[k][(i-y)/2 * img->stride[k] + (j-x)/2];
IMG->planes[k][i/2 * IMG->stride[k] + j/2 + 1] = img->planes[k][(i-y)/2 * img->stride[k] + (j-x)/2 + 1];
IMG->planes[k][(i+2)/2 * IMG->stride[k] + j/2] = img->planes[k][(i+2-y)/2 * img->stride[k] + (j-x)/2];
IMG->planes[k][(i+2)/2 * IMG->stride[k] + j/2 + 1] = img->planes[k][(i+2-y)/2 * img->stride[k] + (j-x)/2 + 1];
}
}
}
}
SWITCH_DECLARE(void) switch_img_copy(switch_image_t *img, switch_image_t **new_img)
{
int i = 0;
switch_assert(img);
switch_assert(new_img);
if (!img->fmt == SWITCH_IMG_FMT_I420) return;
if (*new_img != NULL) {
if (img->d_w != (*new_img)->d_w || img->d_h != (*new_img)->d_w) {
switch_img_free(new_img);
}
}
if (*new_img == NULL) {
*new_img = switch_img_alloc(NULL, SWITCH_IMG_FMT_I420, img->d_w, img->d_h, 1);
}
switch_assert(*new_img);
for (i = 0; i < (*new_img)->h; i++) {
memcpy((*new_img)->planes[SWITCH_PLANE_Y] + (*new_img)->stride[SWITCH_PLANE_Y] * i, img->planes[SWITCH_PLANE_Y] + img->stride[SWITCH_PLANE_Y] * i, img->d_w);
}
for (i = 0; i < (*new_img)->h / 2; i++) {
memcpy((*new_img)->planes[SWITCH_PLANE_U] + (*new_img)->stride[SWITCH_PLANE_U] * i, img->planes[SWITCH_PLANE_U] + img->stride[SWITCH_PLANE_U] * i, img->d_w / 2);
memcpy((*new_img)->planes[SWITCH_PLANE_V] + (*new_img)->stride[SWITCH_PLANE_V] * i, img->planes[SWITCH_PLANE_V] + img->stride[SWITCH_PLANE_V] * i, img->d_w /2);
}
}
static uint8_t scv_art[14][16] = {
{0x00, 0x7E, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x00},
{0x00, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00},
{0x00, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7E, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x7E, 0x00},
{0x00, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7E, 0x00},
{0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00},
{0x00, 0x7E, 0x40, 0x40, 0x40, 0x40, 0x40, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7E, 0x00},
{0x00, 0x7E, 0x40, 0x40, 0x40, 0x40, 0x40, 0x7E, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x00},
{0x00, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x00},
{0x00, 0x7E, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x00},
{0x00, 0x7E, 0x42, 0x42, 0x42, 0x42, 0x42, 0x7E, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7E, 0x00},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00}, /*.*/
{0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*:*/
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*-*/
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* */
};
static void scv_tag(void *buffer, int w, int x, int y, uint8_t n)
{
int i = 0, j=0;
uint8_t *p = buffer;
if (n < 0 || n > 13) return;
for(i=0; i<8; i++) {
for (j=0; j<16; j++) {
*( p + (y + j) * w + (x + i)) = (scv_art[n][j] & 0x80 >> i) ? 0xFF : 0x00;
}
}
}
SWITCH_DECLARE(void) switch_img_add_text(void *buffer, int w, int x, int y, char *s)
{
while (*s) {
int index;
if (x > w - 8) break;
switch (*s) {
case '.': index = 10; break;
case ':': index = 11; break;
case '-': index = 12; break;
case ' ': index = 13; break;
default:
index = *s - 0x30;
}
scv_tag(buffer, w, x, y, index);
x += 8;
s++;
}
}
/* For Emacs:
* Local Variables:
* mode:c
* indent-tabs-mode:t
* tab-width:4
* c-basic-offset:4
* End:
* For VIM:
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
*/
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