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Diffstat (limited to 'formats/format_g729.c')
| -rw-r--r-- | formats/format_g729.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/formats/format_g729.c b/formats/format_g729.c deleted file mode 100644 index 3f46bcbff..000000000 --- a/formats/format_g729.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -/*! \file - * - * \brief Save to raw, headerless G729 data. - * \note This is not an encoder/decoder. The codec fo g729 is only - * available with a commercial license from Digium, due to patent - * restrictions. Check http://www.digium.com for information. - * \arg Extensions: g729 - * \ingroup formats - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <unistd.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <stdlib.h> -#include <sys/time.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> - -#include "asterisk/lock.h" -#include "asterisk/channel.h" -#include "asterisk/file.h" -#include "asterisk/logger.h" -#include "asterisk/sched.h" -#include "asterisk/module.h" -#include "asterisk/endian.h" - -/* Some Ideas for this code came from makeg729e.c by Jeffrey Chilton */ - -/* Portions of the conversion code are by guido@sienanet.it */ - -#define BUF_SIZE 20 /* two G729 frames */ -#define G729A_SAMPLES 160 - -static struct ast_frame *g729_read(struct ast_filestream *s, int *whennext) -{ - int res; - /* Send a frame from the file to the appropriate channel */ - s->fr.frametype = AST_FRAME_VOICE; - s->fr.subclass = AST_FORMAT_G729A; - s->fr.mallocd = 0; - s->fr.samples = G729A_SAMPLES; - AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE); - if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) != s->fr.datalen) { - if (res && (res != 10)) /* XXX what for ? */ - ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); - return NULL; - } - *whennext = s->fr.samples; - return &s->fr; -} - -static int g729_write(struct ast_filestream *fs, struct ast_frame *f) -{ - int res; - if (f->frametype != AST_FRAME_VOICE) { - ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); - return -1; - } - if (f->subclass != AST_FORMAT_G729A) { - ast_log(LOG_WARNING, "Asked to write non-G729 frame (%d)!\n", f->subclass); - return -1; - } - if (f->datalen % 10) { - ast_log(LOG_WARNING, "Invalid data length, %d, should be multiple of 10\n", f->datalen); - return -1; - } - if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) { - ast_log(LOG_WARNING, "Bad write (%d/10): %s\n", res, strerror(errno)); - return -1; - } - return 0; -} - -static int g729_seek(struct ast_filestream *fs, off_t sample_offset, int whence) -{ - long bytes; - off_t min,cur,max,offset=0; - min = 0; - cur = ftello(fs->f); - fseeko(fs->f, 0, SEEK_END); - max = ftello(fs->f); - - bytes = BUF_SIZE * (sample_offset / G729A_SAMPLES); - if (whence == SEEK_SET) - offset = bytes; - else if (whence == SEEK_CUR || whence == SEEK_FORCECUR) - offset = cur + bytes; - else if (whence == SEEK_END) - offset = max - bytes; - if (whence != SEEK_FORCECUR) { - offset = (offset > max)?max:offset; - } - /* protect against seeking beyond begining. */ - offset = (offset < min)?min:offset; - if (fseeko(fs->f, offset, SEEK_SET) < 0) - return -1; - return 0; -} - -static int g729_trunc(struct ast_filestream *fs) -{ - /* Truncate file to current length */ - if (ftruncate(fileno(fs->f), ftello(fs->f)) < 0) - return -1; - return 0; -} - -static off_t g729_tell(struct ast_filestream *fs) -{ - off_t offset = ftello(fs->f); - return (offset/BUF_SIZE)*G729A_SAMPLES; -} - -static const struct ast_format g729_f = { - .name = "g729", - .exts = "g729", - .format = AST_FORMAT_G729A, - .write = g729_write, - .seek = g729_seek, - .trunc = g729_trunc, - .tell = g729_tell, - .read = g729_read, - .buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET, -}; - -static int load_module(void) -{ - return ast_format_register(&g729_f); -} - -static int unload_module(void) -{ - return ast_format_unregister(g729_f.name); -} - -AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Raw G729 data"); |