https://origsvn.digium.com/svn/asterisk/branches/1.10 ................ r328247 | lmadsen | 2011-07-14 16:25:31 -0400 (Thu, 14 Jul 2011) | 14 lines Merged revisions 328209 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.8 ........ r328209 | lmadsen | 2011-07-14 16:13:06 -0400 (Thu, 14 Jul 2011) | 6 lines Introduce <support_level> tags in MODULEINFO. This change introduces MODULEINFO into many modules in Asterisk in order to show the community support level for those modules. This is used by changes committed to menuselect by Russell Bryant recently (r917 in menuselect). More information about the support level types and what they mean is available on the wiki at https://wiki.asterisk.org/wiki/display/AST/Asterisk+Module+Support+States ........ ................ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@328259 65c4cc65-6c06-0410-ace0-fbb531ad65f3
157 lines
4.1 KiB
C
157 lines
4.1 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 Save to raw, headerless G729 data.
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* \note This is not an encoder/decoder. The codec fo g729 is only
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* available with a commercial license from Digium, due to patent
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* restrictions. Check http://www.digium.com for information.
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* \arg Extensions: g729
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* \ingroup formats
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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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 "asterisk/mod_format.h"
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#include "asterisk/module.h"
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#include "asterisk/endian.h"
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/* Some Ideas for this code came from makeg729e.c by Jeffrey Chilton */
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/* Portions of the conversion code are by guido@sienanet.it */
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#define BUF_SIZE 20 /* two G729 frames */
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#define G729A_SAMPLES 160
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static struct ast_frame *g729_read(struct ast_filestream *s, int *whennext)
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{
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int res;
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/* Send a frame from the file to the appropriate channel */
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s->fr.frametype = AST_FRAME_VOICE;
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ast_format_set(&s->fr.subclass.format, AST_FORMAT_G729A, 0);
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s->fr.mallocd = 0;
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s->fr.samples = G729A_SAMPLES;
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AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
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if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
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if (res && (res != 10)) /* XXX what for ? */
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ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
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return NULL;
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}
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*whennext = s->fr.samples;
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return &s->fr;
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}
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static int g729_write(struct ast_filestream *fs, struct ast_frame *f)
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{
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int res;
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if (f->frametype != AST_FRAME_VOICE) {
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ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
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return -1;
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}
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if (f->subclass.format.id != AST_FORMAT_G729A) {
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ast_log(LOG_WARNING, "Asked to write non-G729 frame (%s)!\n", ast_getformatname(&f->subclass.format));
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return -1;
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}
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if (f->datalen % 10) {
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ast_log(LOG_WARNING, "Invalid data length, %d, should be multiple of 10\n", f->datalen);
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return -1;
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}
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if ((res = fwrite(f->data.ptr, 1, f->datalen, fs->f)) != f->datalen) {
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ast_log(LOG_WARNING, "Bad write (%d/10): %s\n", res, strerror(errno));
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return -1;
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}
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return 0;
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}
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static int g729_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
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{
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long bytes;
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off_t min,cur,max,offset=0;
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min = 0;
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cur = ftello(fs->f);
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fseeko(fs->f, 0, SEEK_END);
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max = ftello(fs->f);
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bytes = BUF_SIZE * (sample_offset / G729A_SAMPLES);
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if (whence == SEEK_SET)
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offset = bytes;
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else if (whence == SEEK_CUR || whence == SEEK_FORCECUR)
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offset = cur + bytes;
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else if (whence == SEEK_END)
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offset = max - bytes;
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if (whence != SEEK_FORCECUR) {
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offset = (offset > max)?max:offset;
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}
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/* protect against seeking beyond begining. */
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offset = (offset < min)?min:offset;
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if (fseeko(fs->f, offset, SEEK_SET) < 0)
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return -1;
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return 0;
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}
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static int g729_trunc(struct ast_filestream *fs)
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{
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/* Truncate file to current length */
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if (ftruncate(fileno(fs->f), ftello(fs->f)) < 0)
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return -1;
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return 0;
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}
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static off_t g729_tell(struct ast_filestream *fs)
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{
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off_t offset = ftello(fs->f);
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return (offset/BUF_SIZE)*G729A_SAMPLES;
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}
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static struct ast_format_def g729_f = {
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.name = "g729",
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.exts = "g729",
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.write = g729_write,
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.seek = g729_seek,
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.trunc = g729_trunc,
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.tell = g729_tell,
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.read = g729_read,
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.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
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};
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static int load_module(void)
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{
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ast_format_set(&g729_f.format, AST_FORMAT_G729A, 0);
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if (ast_format_def_register(&g729_f))
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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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return ast_format_def_unregister(g729_f.name);
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Raw G.729 data",
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_APP_DEPEND
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);
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