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freeswitch
提交 521a9793 authored 作者: Anthony Minessale's avatar Anthony Minessale 提交者： Michael Jerris
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FS-7500: check in png code and put it in the core to mature

上级 e84d7b8c
隐藏空白字符变更
内嵌 并排
正在显示 包含 403 行增加 和 4 行删除
Makefile.am
浏览文件 @ 521a9793
...@@ -153,9 +153,9 @@ libfreeswitch_spandsp_la_SOURCES = libs/spandsp/src/plc.c libs/spandsp/src/alloc ...@@ -153,9 +153,9 @@ libfreeswitch_spandsp_la_SOURCES = libs/spandsp/src/plc.c libs/spandsp/src/alloc
libfreeswitch_spandsp_la_CFLAGS = -Ilibs/spandsp/src $(CORE_CFLAGS) $(AM_CFLAGS) libfreeswitch_spandsp_la_CFLAGS = -Ilibs/spandsp/src $(CORE_CFLAGS) $(AM_CFLAGS)
CORE_LIBS+=libfreeswitch_spandsp.la CORE_LIBS+=libfreeswitch_spandsp.la
lib_LTLIBRARIES = libfreeswitch.la lib_LTLIBRARIES = libfreeswitch.la
libfreeswitch_la_CFLAGS = $(CORE_CFLAGS) $(SQLITE_CFLAGS) $(FREETYPE_CFLAGS) $(CURL_CFLAGS) $(PCRE_CFLAGS) $(SPEEX_CFLAGS) $(LIBEDIT_CFLAGS) $(openssl_CFLAGS) $(AM_CFLAGS) libfreeswitch_la_CFLAGS = $(CORE_CFLAGS) $(SQLITE_CFLAGS) $(LIBPNG_CFLAGS) $(FREETYPE_CFLAGS) $(CURL_CFLAGS) $(PCRE_CFLAGS) $(SPEEX_CFLAGS) $(LIBEDIT_CFLAGS) $(openssl_CFLAGS) $(AM_CFLAGS)
libfreeswitch_la_LDFLAGS = -version-info 1:0:0 $(AM_LDFLAGS) $(PLATFORM_CORE_LDFLAGS) -no-undefined libfreeswitch_la_LDFLAGS = -version-info 1:0:0 $(AM_LDFLAGS) $(PLATFORM_CORE_LDFLAGS) -no-undefined
libfreeswitch_la_LIBADD = $(CORE_LIBS) $(APR_LIBS) $(SQLITE_LIBS) $(FREETYPE_LIBS) $(CURL_LIBS) $(PCRE_LIBS) $(SPEEX_LIBS) $(LIBEDIT_LIBS) $(openssl_LIBS) $(VPX_LIBS) $(PLATFORM_CORE_LIBS) libfreeswitch_la_LIBADD = $(CORE_LIBS) $(APR_LIBS) $(SQLITE_LIBS) $(LIBPNG_LIBS) $(FREETYPE_LIBS) $(CURL_LIBS) $(PCRE_LIBS) $(SPEEX_LIBS) $(LIBEDIT_LIBS) $(openssl_LIBS) $(VPX_LIBS) $(PLATFORM_CORE_LIBS)
libfreeswitch_la_DEPENDENCIES = $(BUILT_SOURCES) libfreeswitch_la_DEPENDENCIES = $(BUILT_SOURCES)
if HAVE_ODBC if HAVE_ODBC
......
configure.ac
浏览文件 @ 521a9793
...@@ -755,6 +755,11 @@ if test "x$have_libz" = "xyes" ; then ...@@ -755,6 +755,11 @@ if test "x$have_libz" = "xyes" ; then
APR_ADDTO([PLATFORM_CORE_LIBS], [-lz]) APR_ADDTO([PLATFORM_CORE_LIBS], [-lz])
fi fi
AC_CHECK_LIB(yuv, I420Scale, have_libyuv=yes, AC_MSG_ERROR([no usable libyuv; please install libyuv devel package or equivalent]))
if test "x$have_libyuv" = "xyes" ; then
APR_ADDTO([PLATFORM_CORE_LIBS], [-lyuv])
fi
AC_CHECK_LIB(apr-1, apr_pool_mutex_set, use_system_apr=yes, use_system_apr=no) AC_CHECK_LIB(apr-1, apr_pool_mutex_set, use_system_apr=yes, use_system_apr=no)
AM_CONDITIONAL([SYSTEM_APR],[test "${use_system_apr}" = "yes"]) AM_CONDITIONAL([SYSTEM_APR],[test "${use_system_apr}" = "yes"])
AC_CHECK_LIB(aprutil-1, apr_queue_pop_timeout, use_system_aprutil=yes, use_system_aprutil=no) AC_CHECK_LIB(aprutil-1, apr_queue_pop_timeout, use_system_aprutil=yes, use_system_aprutil=no)
...@@ -1192,6 +1197,7 @@ module_enabled() { ...@@ -1192,6 +1197,7 @@ module_enabled() {
grep -v -e "\#" -e "^\$" modules.conf | sed -e "s|^.*/||" | grep "^${1}\$" >/dev/null grep -v -e "\#" -e "^\$" modules.conf | sed -e "s|^.*/||" | grep "^${1}\$" >/dev/null
} }
PKG_CHECK_MODULES([LIBPNG], [libpng12 >= 1.2.49])
PKG_CHECK_MODULES([FREETYPE], [freetype2 >= 2.4.9]) PKG_CHECK_MODULES([FREETYPE], [freetype2 >= 2.4.9])
PKG_CHECK_MODULES([SQLITE], [sqlite3 >= 3.6.20]) PKG_CHECK_MODULES([SQLITE], [sqlite3 >= 3.6.20])
PKG_CHECK_MODULES([CURL], [libcurl >= 7.19]) PKG_CHECK_MODULES([CURL], [libcurl >= 7.19])
......
src/include/switch_core_video.h
浏览文件 @ 521a9793
...@@ -191,6 +191,11 @@ SWITCH_DECLARE(switch_status_t) switch_img_txt_handle_render(switch_img_txt_hand ...@@ -191,6 +191,11 @@ SWITCH_DECLARE(switch_status_t) switch_img_txt_handle_render(switch_img_txt_hand
int x, int y, const char *text, int x, int y, const char *text,
const char *font_family, const char *font_color, const char *bgcolor, uint16_t font_size, double angle); const char *font_family, const char *font_color, const char *bgcolor, uint16_t font_size, double angle);
SWITCH_DECLARE(void) switch_img_patch_hole(switch_image_t *IMG, switch_image_t *img, int x, int y, switch_image_rect_t *rect);
SWITCH_DECLARE(switch_image_t *) switch_img_read_png(char* file_name);
SWITCH_DECLARE(void) switch_img_write_png(switch_image_t *img, char* file_name);
/** @} */ /** @} */
SWITCH_END_EXTERN_C SWITCH_END_EXTERN_C
......
src/mod/applications/mod_conference/Makefile.am
浏览文件 @ 521a9793
...@@ -5,7 +5,7 @@ mod_LTLIBRARIES = mod_conference.la ...@@ -5,7 +5,7 @@ mod_LTLIBRARIES = mod_conference.la
mod_conference_la_SOURCES = mod_conference.c mod_conference_la_SOURCES = mod_conference.c
mod_conference_la_CFLAGS = $(AM_CFLAGS) -I. mod_conference_la_CFLAGS = $(AM_CFLAGS) -I.
mod_conference_la_LIBADD = $(switch_builddir)/libfreeswitch.la mod_conference_la_LIBADD = $(switch_builddir)/libfreeswitch.la
mod_conference_la_LDFLAGS = -avoid-version -module -no-undefined -shared -lyuv -lfreetype mod_conference_la_LDFLAGS = -avoid-version -module -no-undefined -shared
if HAVE_OPENAL if HAVE_OPENAL
mod_conference_la_LDFLAGS += -lopenal -lm mod_conference_la_LDFLAGS += -lopenal -lm
......
src/switch_core_video.c
浏览文件 @ 521a9793
...@@ -31,7 +31,7 @@ ...@@ -31,7 +31,7 @@
#include <switch.h> #include <switch.h>
#include <switch_utf8.h> #include <switch_utf8.h>
#include <libyuv.h>
SWITCH_DECLARE(switch_image_t *)switch_img_alloc(switch_image_t *img, SWITCH_DECLARE(switch_image_t *)switch_img_alloc(switch_image_t *img,
switch_img_fmt_t fmt, switch_img_fmt_t fmt,
...@@ -545,6 +545,394 @@ SWITCH_DECLARE(switch_status_t) switch_img_txt_handle_render(switch_img_txt_hand ...@@ -545,6 +545,394 @@ SWITCH_DECLARE(switch_status_t) switch_img_txt_handle_render(switch_img_txt_hand
} }
/* WARNING:
patch a big IMG with a rect hole, note this function is WIP ......
It ONLY works when the hole is INSIDE the big IMG and the place the small img will patch to,
more sanity checks need to be decided
*/
SWITCH_DECLARE(void) switch_img_patch_hole(switch_image_t *IMG, switch_image_t *img, int x, int y, switch_image_rect_t *rect)
{
int i, len;
switch_assert(img->fmt == SWITCH_IMG_FMT_I420);
switch_assert(IMG->fmt == SWITCH_IMG_FMT_I420);
len = MIN(img->d_w, IMG->d_w - x);
if (len <= 0) return;
for (i = y; i < (y + img->d_h) && i < IMG->d_h; i++) {
if (rect && i >= rect->y && i < (rect->y + rect->h)) {
int size = rect->x > x ? rect->x - x : 0;
memcpy(IMG->planes[SWITCH_PLANE_Y] + IMG->stride[SWITCH_PLANE_Y] * i + x, img->planes[SWITCH_PLANE_Y] + img->stride[SWITCH_PLANE_Y] * (i - y), size);
size = MIN(img->d_w - rect->w - size, IMG->d_w - (rect->x + rect->w));
memcpy(IMG->planes[SWITCH_PLANE_Y] + IMG->stride[SWITCH_PLANE_Y] * i + rect->x + rect->w, img->planes[SWITCH_PLANE_Y] + img->stride[SWITCH_PLANE_Y] * (i - y) + rect->w + (rect->x - x), size);
} else {
memcpy(IMG->planes[SWITCH_PLANE_Y] + IMG->stride[SWITCH_PLANE_Y] * i + x, img->planes[SWITCH_PLANE_Y] + img->stride[SWITCH_PLANE_Y] * (i - y), len);
}
}
len /= 2;
for (i = y; i < (y + img->d_h) && i < IMG->d_h; i += 2) {
if (rect && i > rect->y && i < (rect->y + rect->h)) {
int size = rect->x > x ? rect->x - x : 0;
size /= 2;
memcpy(IMG->planes[SWITCH_PLANE_U] + IMG->stride[SWITCH_PLANE_U] * i / 2 + x / 2, img->planes[SWITCH_PLANE_U] + img->stride[SWITCH_PLANE_U] * (i - y) / 2, size);
memcpy(IMG->planes[SWITCH_PLANE_V] + IMG->stride[SWITCH_PLANE_V] * i / 2 + x / 2, img->planes[SWITCH_PLANE_V] + img->stride[SWITCH_PLANE_V] * (i - y) / 2, size);
size = MIN(img->d_w - rect->w - size, IMG->d_w - (rect->x + rect->w)) / 2;
memcpy(IMG->planes[SWITCH_PLANE_U] + IMG->stride[SWITCH_PLANE_U] * i / 2 + (rect->x + rect->w) / 2, img->planes[SWITCH_PLANE_U] + img->stride[SWITCH_PLANE_U] * (i - y) / 2 + (rect->w + (rect->x - x)) / 2, size);
memcpy(IMG->planes[SWITCH_PLANE_V] + IMG->stride[SWITCH_PLANE_V] * i / 2 + (rect->x + rect->w) / 2, img->planes[SWITCH_PLANE_V] + img->stride[SWITCH_PLANE_V] * (i - y) / 2 + (rect->w + (rect->x - x)) / 2, size);
} else {
memcpy(IMG->planes[SWITCH_PLANE_U] + IMG->stride[SWITCH_PLANE_U] * i / 2 + x / 2, img->planes[SWITCH_PLANE_U] + img->stride[SWITCH_PLANE_U] * (i - y) / 2, len);
memcpy(IMG->planes[SWITCH_PLANE_V] + IMG->stride[SWITCH_PLANE_V] * i / 2 + x / 2, img->planes[SWITCH_PLANE_V] + img->stride[SWITCH_PLANE_V] * (i - y) / 2, len);
}
}
}
#define SWITCH_IMG_MAX_WIDTH 1920 * 2
#define SWITCH_IMG_MAX_HEIGHT 1080 * 2
// WIP png functions, need furthur tweak/check to make sure it works on all png files and errors are properly detected and reported
// #define PNG_DEBUG 3
#define PNG_SKIP_SETJMP_CHECK
#include <png.h>
// ref: most are out-dated, man libpng :)
// http://zarb.org/~gc/html/libpng.html
// http://www.libpng.org/pub/png/book/toc.html
// http://www.vias.org/pngguide/chapter01_03_02.html
// http://www.libpng.org/pub/png/libpng-1.2.5-manual.html
// ftp://ftp.oreilly.com/examples/9781565920583/CDROM/SOFTWARE/SOURCE/LIBPNG/EXAMPLE.C
SWITCH_DECLARE(switch_image_t *) switch_img_read_png(char* file_name)
{
png_byte header[8]; // 8 is the maximum size that can be checked
png_bytep *row_pointers = NULL;
int y;
int width, height;
png_byte color_type;
png_byte bit_depth;
png_structp png_ptr;
png_infop info_ptr;
//int number_of_passes;
int row_bytes;
png_color_8p sig_bit;
// png_color_16 my_background = { 0 }; //{index,r, g, b, grey}
png_color_16 my_background = {0, 99, 99, 99, 0};
png_byte *buffer = NULL;
switch_image_t *img = NULL;
/* open file and test for it being a png */
FILE *fp = fopen(file_name, "rb");
if (!fp) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "File %s could not be opened for reading", file_name);
goto end;
}
fread(header, 1, 8, fp);
if (png_sig_cmp(header, 0, 8)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "File %s is not recognized as a PNG file", file_name);
goto end;
}
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png_ptr) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "png_create_read_struct failed");
goto end;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "png_create_info_struct failed");
goto end;
}
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during init_io");
goto end;
}
png_init_io(png_ptr, fp);
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
width = png_get_image_width(png_ptr, info_ptr);
height = png_get_image_height(png_ptr, info_ptr);
color_type = png_get_color_type(png_ptr, info_ptr);
bit_depth = png_get_bit_depth(png_ptr, info_ptr);
//number_of_passes = png_set_interlace_handling(png_ptr);
/* set up the transformations you want. Note that these are
all optional. Only call them if you want them */
/* expand paletted colors into true rgb */
if (color_type == PNG_COLOR_TYPE_PALETTE) {
png_set_expand(png_ptr);
}
/* expand grayscale images to the full 8 bits */
if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) {
png_set_expand(png_ptr);
}
/* expand images with transparency to full alpha channels */
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
png_set_expand(png_ptr);
}
/* Set the background color to draw transparent and alpha
images over */
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_bKGD)) {
// png_get_bKGD(png_ptr, info_ptr, &my_background);
// png_set_background(png_ptr, &my_background, PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
} else {
png_set_background(png_ptr, &my_background, PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
}
/* tell libpng to handle the gamma conversion for you */
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_gAMA)) {
// png_set_gamma(png_ptr, screen_gamma, info_ptr->gamma);
} else {
// png_set_gamma(png_ptr, screen_gamma, 0.45);
}
/* tell libpng to strip 16 bit depth files down to 8 bits */
if (bit_depth == 16) {
png_set_strip_16(png_ptr);
}
#if 0
/* dither rgb files down to 8 bit palettes & reduce palettes
to the number of colors available on your screen */
if (0 && color_type & PNG_COLOR_MASK_COLOR) {
if (png_get_valid(png_ptr, info_ptr, & PNG_INFO_PLTE)) {
png_set_dither(png_ptr, info_ptr->palette,
info_ptr->num_palette, max_screen_colors,
info_ptr->histogram);
} else {
png_color std_color_cube[MAX_SCREEN_COLORS] =
{/* ... colors ... */};
png_set_dither(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
MAX_SCREEN_COLORS, NULL);
}
}
#endif
/* invert monocrome files */
if (bit_depth == 1 && color_type == PNG_COLOR_TYPE_GRAY) {
// png_set_invert(png_ptr);
}
png_get_sBIT(png_ptr, info_ptr, &sig_bit);
/* shift the pixels down to their true bit depth */
// if (png_get_valid(png_ptr, info_ptr, PNG_INFO_sBIT) && (bit_depth > (*sig_bit).red)) {
// png_set_shift(png_ptr, sig_bit);
// }
/* pack pixels into bytes */
if (bit_depth < 8) {
png_set_packing(png_ptr);
}
/* flip the rgb pixels to bgr */
if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
// png_set_bgr(png_ptr);
}
/* swap bytes of 16 bit files to least significant bit first */
if (bit_depth == 16) {
png_set_swap(png_ptr);
}
if (color_type & PNG_COLOR_MASK_ALPHA) {
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error!!!!\n");
goto end;
}
png_set_strip_alpha(png_ptr);
}
png_read_update_info(png_ptr, info_ptr);
if (width > SWITCH_IMG_MAX_WIDTH || height > SWITCH_IMG_MAX_HEIGHT) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "PNG is too large! %dx%d\n", width, height);
}
row_bytes = png_get_rowbytes(png_ptr, info_ptr);
//switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "size: %dx%d row_bytes:%d color_type:%d bit_dept:%d\n", width, height, row_bytes, color_type, bit_depth);
row_pointers = (png_bytep*)malloc(sizeof(png_bytep) * height);
switch_assert(row_pointers);
buffer = (png_byte *)malloc(row_bytes * height);
switch_assert(buffer);
for (y = 0; y< height; y++) {
row_pointers[y] = buffer + row_bytes * y;
}
if (color_type == PNG_COLOR_TYPE_PALETTE) {
png_set_palette_to_rgb(png_ptr);
}
img = switch_img_alloc(NULL, SWITCH_IMG_FMT_I420, width, height, 1);
switch_assert(img);
/* read file */
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during read_image");
goto end;
}
png_read_image(png_ptr, row_pointers);
if (png_get_color_type(png_ptr, info_ptr) == PNG_COLOR_TYPE_RGBA) {
// should never get here since we already use png_set_strip_alpha() ?
switch_assert(1 == 2);
switch_assert(row_bytes >= width * 4);
for(y = 1; y < height; y++) {
memcpy(buffer + y * width * 4, row_pointers[y], width * 4);
}
// ABGRToI420(buffer, width * 4,
RGBAToI420(buffer, width * 4,
img->planes[SWITCH_PLANE_Y], img->stride[SWITCH_PLANE_Y],
img->planes[SWITCH_PLANE_U], img->stride[SWITCH_PLANE_U],
img->planes[SWITCH_PLANE_V], img->stride[SWITCH_PLANE_V],
width, height);
} else if (png_get_color_type(png_ptr, info_ptr) == PNG_COLOR_TYPE_RGB) {
switch_assert(row_bytes >= width * 3);
for(y = 1; y < height; y++) {
memcpy(buffer + y * width * 3, row_pointers[y], width * 3);
}
RAWToI420(buffer, width * 3,
img->planes[SWITCH_PLANE_Y], img->stride[SWITCH_PLANE_Y],
img->planes[SWITCH_PLANE_U], img->stride[SWITCH_PLANE_U],
img->planes[SWITCH_PLANE_V], img->stride[SWITCH_PLANE_V],
width, height);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "unsupported color type: %d\n", png_get_color_type(png_ptr, info_ptr));
}
end:
switch_safe_free(buffer);
switch_safe_free(row_pointers);
if (fp) fclose(fp);
if (info_ptr) png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return img;
}
SWITCH_DECLARE(void) switch_img_write_png(switch_image_t *img, char* file_name)
{
int width, height;
png_byte color_type;
png_byte bit_depth;
png_structp png_ptr;
png_infop info_ptr;
png_bytep *row_pointers = NULL;
int row_bytes;
int y;
png_byte *buffer = NULL;
FILE *fp = NULL;
width = img->d_w;
height = img->d_h;
bit_depth = 8;
color_type = PNG_COLOR_TYPE_RGB;
fp = fopen(file_name, "wb");
if (!fp) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "File %s could not be opened for writing", file_name);
goto end;
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png_ptr) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "png_create_write_struct failed");
goto end;
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "png_create_info_struct failed");
goto end;
}
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during init_io");
goto end;
}
png_init_io(png_ptr, fp);
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during writing header");
goto end;
}
png_set_IHDR(png_ptr, info_ptr, width, height,
bit_depth, color_type, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_write_info(png_ptr, info_ptr);
row_bytes = png_get_rowbytes(png_ptr, info_ptr);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "size: %dx%d row_bytes:%d color_type:%d bit_dept:%d\n", width, height, row_bytes, color_type, bit_depth);
row_pointers = (png_bytep*)malloc(sizeof(png_bytep) * height);
switch_assert(row_pointers);
buffer = (png_byte *)malloc(row_bytes * height);
switch_assert(buffer);
for (y = 0; y < height; y++) {
row_pointers[y] = buffer + row_bytes * y;
}
I420ToRAW( img->planes[SWITCH_PLANE_Y], img->stride[SWITCH_PLANE_Y],
img->planes[SWITCH_PLANE_U], img->stride[SWITCH_PLANE_U],
img->planes[SWITCH_PLANE_V], img->stride[SWITCH_PLANE_V],
buffer, width * 3,
width, height);
for(y = height - 1; y > 0; y--) {
// todo, check overlaps
memcpy(row_pointers[y], buffer + row_bytes * y, width * 3);
}
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during writing bytes");
goto end;
}
png_write_image(png_ptr, row_pointers);
if (setjmp(png_jmpbuf(png_ptr))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error during end of write");
goto end;
}
png_write_end(png_ptr, NULL);
end:
switch_safe_free(buffer);
switch_safe_free(row_pointers);
fclose(fp);
png_destroy_write_struct(&png_ptr, &info_ptr);
}
/* For Emacs: /* For Emacs:
......
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