#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/image.h"
#include "asterisk/endian.h"
Go to the source code of this file.
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | jpeg_identify (int fd) |
static struct ast_frame * | jpeg_read_image (int fd, int len) |
static int | jpeg_write_image (int fd, struct ast_frame *fr) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "jpeg (joint picture experts group) image format" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "88eaa8f5c1bd988bedd71113385e0886" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_imager | jpeg_format |
Definition in file format_jpeg.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 123 of file format_jpeg.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 123 of file format_jpeg.c.
static int jpeg_identify | ( | int | fd | ) | [static] |
Definition at line 62 of file format_jpeg.c.
00063 { 00064 char buf[10]; 00065 int res; 00066 res = read(fd, buf, sizeof(buf)); 00067 if (res < sizeof(buf)) 00068 return 0; 00069 if (memcmp(buf + 6, "JFIF", 4)) 00070 return 0; 00071 return 1; 00072 }
static struct ast_frame* jpeg_read_image | ( | int | fd, | |
int | len | |||
) | [static] |
Definition at line 40 of file format_jpeg.c.
References AST_FORMAT_JPEG, AST_FRAME_IMAGE, ast_frisolate(), ast_log(), errno, and LOG_WARNING.
00041 { 00042 struct ast_frame fr; 00043 int res; 00044 char buf[65536]; 00045 if (len > sizeof(buf) || len < 0) { 00046 ast_log(LOG_WARNING, "JPEG image too large to read\n"); 00047 return NULL; 00048 } 00049 res = read(fd, buf, len); 00050 if (res < len) { 00051 ast_log(LOG_WARNING, "Only read %d of %d bytes: %s\n", res, len, strerror(errno)); 00052 } 00053 memset(&fr, 0, sizeof(fr)); 00054 fr.frametype = AST_FRAME_IMAGE; 00055 fr.subclass.codec = AST_FORMAT_JPEG; 00056 fr.data.ptr = buf; 00057 fr.src = "JPEG Read"; 00058 fr.datalen = len; 00059 return ast_frisolate(&fr); 00060 }
static int jpeg_write_image | ( | int | fd, | |
struct ast_frame * | fr | |||
) | [static] |
Definition at line 74 of file format_jpeg.c.
References AST_FORMAT_JPEG, AST_FRAME_IMAGE, ast_log(), ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, errno, ast_frame::frametype, LOG_WARNING, ast_frame::ptr, and ast_frame::subclass.
00075 { 00076 int res=0; 00077 if (fr->frametype != AST_FRAME_IMAGE) { 00078 ast_log(LOG_WARNING, "Not an image\n"); 00079 return -1; 00080 } 00081 if (fr->subclass.codec != AST_FORMAT_JPEG) { 00082 ast_log(LOG_WARNING, "Not a jpeg image\n"); 00083 return -1; 00084 } 00085 if (fr->datalen) { 00086 res = write(fd, fr->data.ptr, fr->datalen); 00087 if (res != fr->datalen) { 00088 ast_log(LOG_WARNING, "Only wrote %d of %d bytes: %s\n", res, fr->datalen, strerror(errno)); 00089 return -1; 00090 } 00091 } 00092 return res; 00093 }
static int load_module | ( | void | ) | [static] |
Definition at line 105 of file format_jpeg.c.
References ast_image_register(), AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, and jpeg_format.
00106 { 00107 if (ast_image_register(&jpeg_format)) 00108 return AST_MODULE_LOAD_FAILURE; 00109 return AST_MODULE_LOAD_SUCCESS; 00110 }
static int unload_module | ( | void | ) | [static] |
Definition at line 112 of file format_jpeg.c.
References ast_image_unregister(), and jpeg_format.
00113 { 00114 ast_image_unregister(&jpeg_format); 00115 00116 return 0; 00117 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "jpeg (joint picture experts group) image format" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "88eaa8f5c1bd988bedd71113385e0886" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND } [static] |
Definition at line 123 of file format_jpeg.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 123 of file format_jpeg.c.
struct ast_imager jpeg_format [static] |