these files are now unused, corresponding functions are merged

into format_pcm.c



git-svn-id: http://svn.digium.com/svn/asterisk/trunk@17331 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 0 insertions, 291 deletions

diff --git a/formats/format_pcm_alaw.c b/formats/format_pcm_alaw.c
deleted file mode 100644
index dcca10a9d..000000000
--- a/formats/format_pcm_alaw.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2006, 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 Flat, binary, alaw PCM file format.
- * \arg File name extensions: alaw, al
- * \ingroup formats
- */
- 
-#include <unistd.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/times.h>
-#include <sys/types.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#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"
-#include "asterisk/alaw.h"
-
-#define BUF_SIZE 160		/* 160 bytes, and same number of samples */
-
-/* #define REALTIME_WRITE */	/* XXX does it work at all ? */
-
-struct pcma_desc {
-#ifdef REALTIME_WRITE
-	unsigned long start_time;
-#endif
-};
-
-static char alaw_silence[BUF_SIZE];
-
-#if 0
-/* Returns time in msec since system boot. */
-static unsigned long get_time(struct ast_filestream *s)
-{
-	struct tms buf;
-	clock_t cur;
-	unsigned long *res;
-
-	cur = times( &buf );
-	if( cur < 0 )
-	{
-		ast_log( LOG_WARNING, "Cannot get current time\n" );
-		return 0;
-	}
-	res = cur * 1000 / sysconf( _SC_CLK_TCK );
-	if (s) {
-		struct pcma_desc *d = (struct pcma_filestream *)s->private;
-		d->start_time = res;
-	}
-	return res;
-}
-#endif
-
-static int pcm_open(struct ast_filestream *s)
-{
-#ifdef REALTIME_WRITE
-	get_time(s);
-#endif
-	return 0;
-}
-
-static int pcm_rewrite(struct ast_filestream *s, const char *comment)
-{
-	return pcm_open(s);
-}
-
-static struct ast_frame *pcm_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_ALAW;
-	s->fr.mallocd = 0;
-	FR_SET_BUF(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
-	if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) < 1) {
-		if (res)
-			ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
-		return NULL;
-	}
-	s->fr.datalen = res;
-	*whennext = s->fr.samples = res;
-	return &s->fr;
-}
-
-static int pcm_write(struct ast_filestream *fs, struct ast_frame *f)
-{
-	int res;
-#ifdef REALTIME_WRITE
-	unsigned long cur_time;
-	unsigned long fpos;
-	struct stat stat_buf;
-	struct pcma_filestream *s = (struct pcma_filestream *)fs->private;
-#endif
-
-	if (f->frametype != AST_FRAME_VOICE) {
-		ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
-		return -1;
-	}
-	if (f->subclass != AST_FORMAT_ALAW) {
-		ast_log(LOG_WARNING, "Asked to write non-alaw frame (%d)!\n", f->subclass);
-		return -1;
-	}
-
-#ifdef REALTIME_WRITE
-	cur_time = get_time();
-	fpos = ( cur_time - s->start_time ) * 8;	/* 8 bytes per msec */
-	/* Check if we have written to this position yet. If we have, then increment pos by one frame
-	*  for some degree of protection against receiving packets in the same clock tick.
-	*/
-	
-	fstat(fileno(fs->f), &stat_buf );
-	if (stat_buf.st_size > fpos ) {
-		fpos += f->datalen;	/* Incrementing with the size of this current frame */
-	}
-
-	if (stat_buf.st_size < fpos) {
-		/* fill the gap with 0x55 rather than 0. */
-		char buf[ 512 ];
-		unsigned long cur, to_write;
-
-		cur = stat_buf.st_size;
-		if (fseeko(fs->f, cur, SEEK_SET) < 0) {
-			ast_log( LOG_WARNING, "Cannot seek in file: %s\n", strerror(errno) );
-			return -1;
-		}
-		memset(buf, 0x55, 512);
-		while (cur < fpos) {
-			to_write = fpos - cur;
-			if (to_write > 512) {
-				to_write = 512;
-			}
-			fwrite(buf, 1, to_write, fs->f);
-			cur += to_write;
-		}
-	}
-
-
-	if (fseeko(s->f, fpos, SEEK_SET) < 0) {
-		ast_log( LOG_WARNING, "Cannot seek in file: %s\n", strerror(errno) );
-		return -1;
-	}
-#endif	/* REALTIME_WRITE */
-	
-	if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) {
-			ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno));
-			return -1;
-	}
-	return 0;
-}
-
-static int pcm_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
-{
-	off_t cur, max, offset = 0;
- 	int ret = -1; /* assume error */
-
-	cur = ftello(fs->f);
-	fseeko(fs->f, 0, SEEK_END);
-	max = ftello(fs->f);
-
-	switch (whence) {
-	case SEEK_SET:
-		offset = sample_offset;
-		break;
-	case SEEK_END:
-		offset = max - sample_offset;
-		break;
-	case SEEK_CUR:
-	case SEEK_FORCECUR:
-		offset = cur + sample_offset;
-		break;
-	default:
-		ast_log(LOG_WARNING, "invalid whence %d, assuming SEEK_SET\n", whence);
-		offset = sample_offset;
-	}
-
-	if (offset < 0) {
-		offset = 0;
-		ast_log(LOG_WARNING, "negative offset %ld, resetting to 0\n", (long) offset);
-	}
-	if (whence == SEEK_FORCECUR && offset > max) {
-		size_t left = offset - max;
-
-		while (left) {
-			size_t written = fwrite(alaw_silence, sizeof(alaw_silence[0]),
-				     (left > BUF_SIZE) ? BUF_SIZE : left, fs->f);
-			if (written == -1)
-				break; /* error */
-			left -= written * sizeof(alaw_silence[0]);
-		}
-		ret = 0; /* success */
-	} else {
-		if (offset > max) {
-			ast_log(LOG_WARNING, "offset too large %ld, truncating to %ld\n", (long) offset, (long) max);
-			offset = max;
-		}
-		ret = fseeko(fs->f, offset, SEEK_SET);
-	}
-	return ret;
-}
-
-static int pcm_trunc(struct ast_filestream *fs)
-{
-	return ftruncate(fileno(fs->f), ftello(fs->f));
-}
-
-static off_t pcm_tell(struct ast_filestream *fs)
-{
-	return ftello(fs->f);
-}
-
-static struct ast_format_lock me = { .usecnt = -1 };
-
-static const struct ast_format alaw_f = {
-	.name = "alaw",
-	.exts = "alaw|al",
-	.format = AST_FORMAT_ALAW,
-	.open = pcm_open,
-	.rewrite = pcm_rewrite,
-	.write = pcm_write,
-	.seek = pcm_seek,
-	.trunc = pcm_trunc,
-	.tell = pcm_tell,
-	.read = pcm_read,
-	.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
-	.lockp = &me,
-#ifdef	REALTIME_WRITE
-	.desc_size = sizeof(struct pcma_desc),
-#endif
-};
-
-int load_module()
-{
-	int index;
-
-	for (index = 0; index < (sizeof(alaw_silence) / sizeof(alaw_silence[0])); index++)
-		alaw_silence[index] = AST_LIN2A(0);
-
-	return ast_format_register(&alaw_f);
-}
-
-int unload_module()
-{
-	return ast_format_unregister(alaw_f.name);
-}	
-
-int usecount()
-{
-	return me.usecnt;
-}
-
-char *description()
-{
-	return "Raw aLaw 8khz PCM Audio support";
-}
-
-char *key()
-{
-	return ASTERISK_GPL_KEY;
-}