#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 = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, .load_pri = 10, } |
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 119 of file format_jpeg.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 119 of file format_jpeg.c.
static int jpeg_identify | ( | int | fd | ) | [static] |
Definition at line 58 of file format_jpeg.c.
References buf.
00059 { 00060 char buf[10]; 00061 int res; 00062 res = read(fd, buf, sizeof(buf)); 00063 if (res < sizeof(buf)) 00064 return 0; 00065 if (memcmp(buf + 6, "JFIF", 4)) 00066 return 0; 00067 return 1; 00068 }
static struct ast_frame* jpeg_read_image | ( | int | fd, | |
int | len | |||
) | [static] |
Definition at line 36 of file format_jpeg.c.
References AST_FORMAT_JPEG, AST_FRAME_IMAGE, ast_frisolate(), ast_log(), buf, errno, and LOG_WARNING.
00037 { 00038 struct ast_frame fr; 00039 int res; 00040 char buf[65536]; 00041 if (len > sizeof(buf) || len < 0) { 00042 ast_log(LOG_WARNING, "JPEG image too large to read\n"); 00043 return NULL; 00044 } 00045 res = read(fd, buf, len); 00046 if (res < len) { 00047 ast_log(LOG_WARNING, "Only read %d of %d bytes: %s\n", res, len, strerror(errno)); 00048 } 00049 memset(&fr, 0, sizeof(fr)); 00050 fr.frametype = AST_FRAME_IMAGE; 00051 fr.subclass = AST_FORMAT_JPEG; 00052 fr.data.ptr = buf; 00053 fr.src = "JPEG Read"; 00054 fr.datalen = len; 00055 return ast_frisolate(&fr); 00056 }
static int jpeg_write_image | ( | int | fd, | |
struct ast_frame * | fr | |||
) | [static] |
Definition at line 70 of file format_jpeg.c.
References AST_FORMAT_JPEG, AST_FRAME_IMAGE, ast_log(), ast_frame::data, ast_frame::datalen, errno, ast_frame::frametype, LOG_WARNING, ast_frame::ptr, and ast_frame::subclass.
00071 { 00072 int res=0; 00073 if (fr->frametype != AST_FRAME_IMAGE) { 00074 ast_log(LOG_WARNING, "Not an image\n"); 00075 return -1; 00076 } 00077 if (fr->subclass != AST_FORMAT_JPEG) { 00078 ast_log(LOG_WARNING, "Not a jpeg image\n"); 00079 return -1; 00080 } 00081 if (fr->datalen) { 00082 res = write(fd, fr->data.ptr, fr->datalen); 00083 if (res != fr->datalen) { 00084 ast_log(LOG_WARNING, "Only wrote %d of %d bytes: %s\n", res, fr->datalen, strerror(errno)); 00085 return -1; 00086 } 00087 } 00088 return res; 00089 }
static int load_module | ( | void | ) | [static] |
Definition at line 101 of file format_jpeg.c.
References ast_image_register(), AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, and jpeg_format.
00102 { 00103 if (ast_image_register(&jpeg_format)) 00104 return AST_MODULE_LOAD_FAILURE; 00105 return AST_MODULE_LOAD_SUCCESS; 00106 }
static int unload_module | ( | void | ) | [static] |
Definition at line 108 of file format_jpeg.c.
References ast_image_unregister(), and jpeg_format.
00109 { 00110 ast_image_unregister(&jpeg_format); 00111 00112 return 0; 00113 }
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 = "a9c98e5d177805051735cb5b0b16b0a0" , .load = load_module, .unload = unload_module, .load_pri = 10, } [static] |
Definition at line 119 of file format_jpeg.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 119 of file format_jpeg.c.
struct ast_imager jpeg_format [static] |