a525edea59
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
144 lines
3.6 KiB
C
144 lines
3.6 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 Flat, binary, ADPCM vox file format.
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* \arg File name extensions: vox
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*
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* \ingroup formats
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*/
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/*** MODULEINFO
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<support_level>extended</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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#define BUF_SIZE 80 /* 80 bytes, 160 samples */
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#define VOX_SAMPLES 160
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static struct ast_frame *vox_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_ADPCM, 0);
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s->fr.mallocd = 0;
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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)) < 1) {
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if (res)
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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 = res * 2;
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s->fr.datalen = res;
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return &s->fr;
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}
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static int vox_write(struct ast_filestream *s, 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_ADPCM) {
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ast_log(LOG_WARNING, "Asked to write non-ADPCM frame (%s)!\n", ast_getformatname(&f->subclass.format));
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return -1;
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}
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if ((res = fwrite(f->data.ptr, 1, f->datalen, s->f)) != f->datalen) {
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ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, 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 vox_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
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{
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off_t offset=0,min,cur,max,distance;
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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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/* have to fudge to frame here, so not fully to sample */
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distance = sample_offset/2;
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if(whence == SEEK_SET)
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offset = distance;
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else if(whence == SEEK_CUR || whence == SEEK_FORCECUR)
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offset = distance + cur;
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else if(whence == SEEK_END)
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offset = max - distance;
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if (whence != SEEK_FORCECUR) {
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offset = (offset > max)?max:offset;
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offset = (offset < min)?min:offset;
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}
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return fseeko(fs->f, offset, SEEK_SET);
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}
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static int vox_trunc(struct ast_filestream *fs)
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{
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return ftruncate(fileno(fs->f), ftello(fs->f));
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}
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static off_t vox_tell(struct ast_filestream *fs)
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{
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off_t offset;
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offset = ftello(fs->f) << 1;
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return offset;
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}
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static struct ast_format_def vox_f = {
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.name = "vox",
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.exts = "vox",
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.write = vox_write,
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.seek = vox_seek,
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.trunc = vox_trunc,
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.tell = vox_tell,
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.read = vox_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(&vox_f.format, AST_FORMAT_ADPCM, 0);
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if (ast_format_def_register(&vox_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(vox_f.name);
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Dialogic VOX (ADPCM) File Format",
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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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