59c9ff7ef2
(issue #11096) Patches: codec_adpcm.c.patch uploaded by moy (license 222) codec_alaw.c.patch uploaded by moy (license 222) codec_a_mu.c.patch uploaded by moy (license 222) codec_g722.c.patch uploaded by moy (license 222) codec_g726.c.diff uploaded by moy (license 222) codec_gsm.c.patch uploaded by moy (license 222) codec_ilbc.c.patch uploaded by moy (license 222) codec_lpc10.c.patch uploaded by moy (license 222) codec_speex.c.patch uploaded by moy (license 222) codec_ulaw.c.patch uploaded by moy (license 222) codec_zap.c.patch uploaded by moy (license 222) format_g723.c.patch uploaded by moy (license 222) format_g726.c.patch uploaded by moy (license 222) format_g729.c.patch uploaded by moy (license 222) format_gsm.c.patch uploaded by moy (license 222) format_h263.c.patch uploaded by moy (license 222) format_h264.c.patch uploaded by moy (license 222) format_ilbc.c.patch uploaded by moy (license 222) format_jpeg.c.patch uploaded by moy (license 222) format_ogg_vorbis.c.patch uploaded by moy (license 222) format_pcm.c.patch uploaded by moy (license 222) format_sln.c.patch uploaded by moy (license 222) format_vox.c.patch uploaded by moy (license 222) format_wav.c.patch uploaded by moy (license 222) format_wav_gsm.c.patch uploaded by moy (license 222) res_adsi.c.patch uploaded by eliel (license 64) res_ael_share.c.patch uploaded by eliel (license 64) res_clioriginate.c.patch uploaded by eliel (license 64) res_convert.c.patch uploaded by eliel (license 64) res_indications.c.patch uploaded by eliel (license 64) res_musiconhold.c.patch uploaded by eliel (license 64) res_smdi.c.patch uploaded by eliel (license 64) res_speech.c.patch uploaded by eliel (license 64) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@87889 65c4cc65-6c06-0410-ace0-fbb531ad65f3
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief JPEG File format support.
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*
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* \arg File name extension: jpeg, jpg
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* \ingroup formats
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*/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <sys/types.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include "asterisk/channel.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/sched.h"
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#include "asterisk/module.h"
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#include "asterisk/image.h"
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#include "asterisk/lock.h"
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#include "asterisk/endian.h"
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static struct ast_frame *jpeg_read_image(int fd, int len)
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{
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struct ast_frame fr;
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int res;
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char buf[65536];
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if (len > sizeof(buf) || len < 0) {
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ast_log(LOG_WARNING, "JPEG image too large to read\n");
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return NULL;
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}
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res = read(fd, buf, len);
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if (res < len) {
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ast_log(LOG_WARNING, "Only read %d of %d bytes: %s\n", res, len, strerror(errno));
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}
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memset(&fr, 0, sizeof(fr));
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fr.frametype = AST_FRAME_IMAGE;
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fr.subclass = AST_FORMAT_JPEG;
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fr.data = buf;
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fr.src = "JPEG Read";
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fr.datalen = len;
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return ast_frisolate(&fr);
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}
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static int jpeg_identify(int fd)
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{
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char buf[10];
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int res;
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res = read(fd, buf, sizeof(buf));
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if (res < sizeof(buf))
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return 0;
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if (memcmp(buf + 6, "JFIF", 4))
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return 0;
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return 1;
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}
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static int jpeg_write_image(int fd, struct ast_frame *fr)
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{
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int res=0;
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if (fr->frametype != AST_FRAME_IMAGE) {
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ast_log(LOG_WARNING, "Not an image\n");
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return -1;
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}
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if (fr->subclass != AST_FORMAT_JPEG) {
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ast_log(LOG_WARNING, "Not a jpeg image\n");
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return -1;
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}
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if (fr->datalen) {
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res = write(fd, fr->data, fr->datalen);
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if (res != fr->datalen) {
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ast_log(LOG_WARNING, "Only wrote %d of %d bytes: %s\n", res, fr->datalen, strerror(errno));
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return -1;
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}
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}
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return res;
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}
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static struct ast_imager jpeg_format = {
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"jpg",
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"JPEG (Joint Picture Experts Group)",
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"jpg|jpeg",
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AST_FORMAT_JPEG,
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jpeg_read_image,
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jpeg_identify,
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jpeg_write_image,
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};
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static int load_module(void)
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{
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if (ast_image_register(&jpeg_format))
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return AST_MODULE_LOAD_FAILURE;
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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ast_image_unregister(&jpeg_format);
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return 0;
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}
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AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "JPEG (Joint Picture Experts Group) Image Format");
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