Version 0.3.0 from FTP

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@608 65c4cc65-6c06-0410-ace0-fbb531ad65f3

formats/format_g723.c

@@ -150,6 +150,7 @@ static void g723_close(struct ast_filestream *s)
 		ast_log(LOG_WARNING, "Freeing a filestream we don't seem to own\n");
 	close(s->fd);
 	free(s);
+	s = NULL;
 }
 
 static int ast_read_callback(void *data)
@@ -199,7 +200,7 @@ static int ast_read_callback(void *data)
 		else
 			s->fr->timelen = delay;
 #else
-		s->fr->timelen = 30;
+		s->fr->samples = 240;
 #endif
 		/* Unless there is no delay, we're going to exit out as soon as we
 		   have processed the current frame. */
@@ -229,9 +230,14 @@ static int ast_read_callback(void *data)
 
 static int g723_apply(struct ast_channel *c, struct ast_filestream *s)
 {
-	u_int32_t delay;
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int g723_play(struct ast_filestream *s)
+{
+	u_int32_t delay;
 	/* Read and ignore the first delay */
 	if (read(s->fd, &delay, 4) != 4) {
 		/* Empty file */
@@ -296,6 +302,21 @@ static int g723_write(struct ast_filestream *fs, struct ast_frame *f)
 	return 0;
 }
 
+static int g723_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	return -1;
+}
+
+static int g723_trunc(struct ast_filestream *fs)
+{
+	return -1;
+}
+
+static long g723_tell(struct ast_filestream *fs)
+{
+	return -1;
+}
+
 static char *g723_getcomment(struct ast_filestream *s)
 {
 	return NULL;
@@ -307,7 +328,11 @@ int load_module()
 								g723_open,
 								g723_rewrite,
 								g723_apply,
+								g723_play,
 								g723_write,
+								g723_seek,
+								g723_trunc,
+								g723_tell,
 								g723_read,
 								g723_close,
 								g723_getcomment);

formats/format_g729.c

@@ -0,0 +1,351 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Save to raw, headerless G729 data.
+ * 
+ * Copyright (C) 1999, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+ 
+#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 <arpa/inet.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <endian.h>
+
+/* Some Ideas for this code came from makeg729e.c by Jeffery Chilton */
+
+/* Portions of the conversion code are by guido@sienanet.it */
+
+struct ast_filestream {
+	void *reserved[AST_RESERVED_POINTERS];
+	/* Believe it or not, we must decode/recode to account for the
+	   weird MS format */
+	/* This is what a filestream means to us */
+	int fd; /* Descriptor */
+	struct ast_channel *owner;
+	struct ast_frame fr;				/* Frame information */
+	char waste[AST_FRIENDLY_OFFSET];	/* Buffer for sending frames, etc */
+	char empty;							/* Empty character */
+	unsigned char g729[20];				/* Two Real G729 Frames */
+	int lasttimeout;
+	struct timeval last;
+	int adj;
+	struct ast_filestream *next;
+};
+
+
+static struct ast_filestream *glist = NULL;
+static pthread_mutex_t g729_lock = AST_MUTEX_INITIALIZER;
+static int glistcnt = 0;
+
+static char *name = "g729";
+static char *desc = "Raw G729 data";
+static char *exts = "g729";
+
+static struct ast_filestream *g729_open(int fd)
+{
+	/* We don't have any header to read or anything really, but
+	   if we did, it would go here.  We also might want to check
+	   and be sure it's a valid file.  */
+	struct ast_filestream *tmp;
+	if ((tmp = malloc(sizeof(struct ast_filestream)))) {
+		memset(tmp, 0, sizeof(struct ast_filestream));
+		if (ast_pthread_mutex_lock(&g729_lock)) {
+			ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+			free(tmp);
+			return NULL;
+		}
+		tmp->next = glist;
+		glist = tmp;
+		tmp->fd = fd;
+		tmp->owner = NULL;
+		tmp->fr.data = tmp->g729;
+		tmp->fr.frametype = AST_FRAME_VOICE;
+		tmp->fr.subclass = AST_FORMAT_G729A;
+		/* datalen will vary for each frame */
+		tmp->fr.src = name;
+		tmp->fr.mallocd = 0;
+		tmp->lasttimeout = -1;
+		glistcnt++;
+		ast_pthread_mutex_unlock(&g729_lock);
+		ast_update_use_count();
+	}
+	return tmp;
+}
+
+static struct ast_filestream *g729_rewrite(int fd, char *comment)
+{
+	/* We don't have any header to read or anything really, but
+	   if we did, it would go here.  We also might want to check
+	   and be sure it's a valid file.  */
+	struct ast_filestream *tmp;
+	if ((tmp = malloc(sizeof(struct ast_filestream)))) {
+		memset(tmp, 0, sizeof(struct ast_filestream));
+		if (ast_pthread_mutex_lock(&g729_lock)) {
+			ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+			free(tmp);
+			return NULL;
+		}
+		tmp->next = glist;
+		glist = tmp;
+		tmp->fd = fd;
+		tmp->owner = NULL;
+		tmp->lasttimeout = -1;
+		glistcnt++;
+		ast_pthread_mutex_unlock(&g729_lock);
+		ast_update_use_count();
+	} else
+		ast_log(LOG_WARNING, "Out of memory\n");
+	return tmp;
+}
+
+static struct ast_frame *g729_read(struct ast_filestream *s)
+{
+	return NULL;
+}
+
+static void g729_close(struct ast_filestream *s)
+{
+	struct ast_filestream *tmp, *tmpl = NULL;
+	if (ast_pthread_mutex_lock(&g729_lock)) {
+		ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+		return;
+	}
+	tmp = glist;
+	while(tmp) {
+		if (tmp == s) {
+			if (tmpl)
+				tmpl->next = tmp->next;
+			else
+				glist = tmp->next;
+			break;
+		}
+		tmpl = tmp;
+		tmp = tmp->next;
+	}
+	glistcnt--;
+	if (s->owner) {
+		s->owner->stream = NULL;
+		if (s->owner->streamid > -1)
+			ast_sched_del(s->owner->sched, s->owner->streamid);
+		s->owner->streamid = -1;
+	}
+	ast_pthread_mutex_unlock(&g729_lock);
+	ast_update_use_count();
+	if (!tmp) 
+		ast_log(LOG_WARNING, "Freeing a filestream we don't seem to own\n");
+	close(s->fd);
+	free(s);
+	s = NULL;
+}
+
+static int ast_read_callback(void *data)
+{
+	int retval = 0;
+	int res;
+	int delay = 20;
+	struct ast_filestream *s = data;
+	struct timeval tv;
+	/* Send a frame from the file to the appropriate channel */
+
+	s->fr.frametype = AST_FRAME_VOICE;
+	s->fr.subclass = AST_FORMAT_G729A;
+	s->fr.offset = AST_FRIENDLY_OFFSET;
+	s->fr.samples = 160;
+	s->fr.datalen = 20;
+	s->fr.mallocd = 0;
+	s->fr.data = s->g729;
+	if ((res = read(s->fd, s->g729, 20)) != 20) {
+		if (res)
+			ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
+		s->owner->streamid = -1;
+		return 0;
+	}
+	/* Lastly, process the frame */
+	if (ast_write(s->owner, &s->fr)) {
+		ast_log(LOG_WARNING, "Failed to write frame\n");
+		s->owner->streamid = -1;
+		return 0;
+	}
+	if (s->last.tv_usec || s->last.tv_usec) {
+		int ms;
+		gettimeofday(&tv, NULL);
+		ms = 1000 * (tv.tv_sec - s->last.tv_sec) + 
+			(tv.tv_usec - s->last.tv_usec) / 1000;
+		s->last.tv_sec = tv.tv_sec;
+		s->last.tv_usec = tv.tv_usec;
+		if ((ms - delay) * (ms - delay) > 4) {
+			/* Compensate if we're more than 2 ms off */
+			s->adj -= (ms - delay);
+		}
+#if 0
+		fprintf(stdout, "Delay is %d, adjustment is %d, last was %d\n", delay, s->adj, ms);
+#endif
+		delay += s->adj;
+		if (delay < 1)
+			delay = 1;
+	} else
+		gettimeofday(&s->last, NULL);
+	if (s->lasttimeout != delay) {
+		/* We'll install the next timeout now. */
+		s->owner->streamid = ast_sched_add(s->owner->sched,
+				delay, ast_read_callback, s); 
+		s->lasttimeout = delay;
+	} else {
+		/* Just come back again at the same time */
+		retval = -1;
+	}
+	return retval;
+}
+
+static int g729_apply(struct ast_channel *c, struct ast_filestream *s)
+{
+	/* Select our owner for this stream, and get the ball rolling. */
+	s->owner = c;
+	return 0;
+}
+
+static int g729_play(struct ast_filestream *s)
+{
+	ast_read_callback(s);
+	return 0;
+}
+
+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 % 20) {
+		ast_log(LOG_WARNING, "Invalid data length, %d, should be multiple of 20\n", f->datalen);
+		return -1;
+	}
+	if ((res = write(fs->fd, f->data, f->datalen)) != f->datalen) {
+			ast_log(LOG_WARNING, "Bad write (%d/20): %s\n", res, strerror(errno));
+			return -1;
+	}
+	return 0;
+}
+
+static char *g729_getcomment(struct ast_filestream *s)
+{
+	return NULL;
+}
+
+static int g729_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	long bytes;
+	off_t min,cur,max,offset;
+	min = 0;
+	cur = lseek(fs->fd, 0, SEEK_CUR);
+	max = lseek(fs->fd, 0, SEEK_END);
+	
+	bytes = 20 * (sample_offset / 160);
+	if(whence == SEEK_SET)
+		offset = bytes;
+	if(whence == SEEK_CUR)
+		offset = cur + bytes;
+	if(whence == SEEK_END)
+		offset = max - bytes;
+	offset = (offset > max)?max:offset;
+	offset = (offset < min)?min:offset;
+	if (lseek(fs->fd, offset, SEEK_SET) < 0)
+		return -1;
+	return 0;
+}
+
+static int g729_trunc(struct ast_filestream *fs)
+{
+	/* Truncate file to current length */
+	if (ftruncate(fs->fd, lseek(fs->fd, 0, SEEK_CUR)) < 0)
+		return -1;
+	return 0;
+}
+
+static long g729_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = lseek(fs->fd, 0, SEEK_CUR);
+	return (offset/20)*160;
+}
+
+int load_module()
+{
+	return ast_format_register(name, exts, AST_FORMAT_G729A,
+								g729_open,
+								g729_rewrite,
+								g729_apply,
+								g729_play,
+								g729_write,
+								g729_seek,
+								g729_trunc,
+								g729_tell,
+								g729_read,
+								g729_close,
+								g729_getcomment);
+								
+								
+}
+
+int unload_module()
+{
+	struct ast_filestream *tmp, *tmpl;
+	if (ast_pthread_mutex_lock(&g729_lock)) {
+		ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+		return -1;
+	}
+	tmp = glist;
+	while(tmp) {
+		if (tmp->owner)
+			ast_softhangup(tmp->owner, AST_SOFTHANGUP_APPUNLOAD);
+		tmpl = tmp;
+		tmp = tmp->next;
+		free(tmpl);
+	}
+	ast_pthread_mutex_unlock(&g729_lock);
+	return ast_format_unregister(name);
+}	
+
+int usecount()
+{
+	int res;
+	if (ast_pthread_mutex_lock(&g729_lock)) {
+		ast_log(LOG_WARNING, "Unable to lock g729 list\n");
+		return -1;
+	}
+	res = glistcnt;
+	ast_pthread_mutex_unlock(&g729_lock);
+	return res;
+}
+
+char *description()
+{
+	return desc;
+}
+
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}

formats/format_gsm.c

@@ -151,6 +151,7 @@ static void gsm_close(struct ast_filestream *s)
 		ast_log(LOG_WARNING, "Freeing a filestream we don't seem to own\n");
 	close(s->fd);
 	free(s);
+	s = NULL;
 }
 
 static int ast_read_callback(void *data)
@@ -165,7 +166,7 @@ static int ast_read_callback(void *data)
 	s->fr.frametype = AST_FRAME_VOICE;
 	s->fr.subclass = AST_FORMAT_GSM;
 	s->fr.offset = AST_FRIENDLY_OFFSET;
-	s->fr.timelen = 20;
+	s->fr.samples = 160;
 	s->fr.datalen = 33;
 	s->fr.mallocd = 0;
 	s->fr.data = s->gsm;
@@ -216,6 +217,11 @@ static int gsm_apply(struct ast_channel *c, struct ast_filestream *s)
 {
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int gsm_play(struct ast_filestream *s)
+{
 	ast_read_callback(s);
 	return 0;
 }
@@ -242,6 +248,38 @@ static int gsm_write(struct ast_filestream *fs, struct ast_frame *f)
 	return 0;
 }
 
+static int gsm_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	off_t offset,min,cur,max,distance;
+	
+	min = 0;
+	cur = lseek(fs->fd, 0, SEEK_CUR);
+	max = lseek(fs->fd, 0, SEEK_END);
+	/* have to fudge to frame here, so not fully to sample */
+	distance = (sample_offset/160) * 33;
+	if(whence == SEEK_SET)
+		offset = distance;
+	if(whence == SEEK_CUR)
+		offset = distance + cur;
+	if(whence == SEEK_END)
+		offset = max - distance;
+	offset = (offset > max)?max:offset;
+	offset = (offset < min)?min:offset;
+	return lseek(fs->fd, offset, SEEK_SET);
+}
+
+static int gsm_trunc(struct ast_filestream *fs)
+{
+	return ftruncate(fs->fd, lseek(fs->fd,0,SEEK_CUR));
+}
+
+static long gsm_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = lseek(fs->fd, 0, SEEK_CUR);
+	return (offset/33)*160;
+}
+
 static char *gsm_getcomment(struct ast_filestream *s)
 {
 	return NULL;
@@ -253,7 +291,11 @@ int load_module()
 								gsm_open,
 								gsm_rewrite,
 								gsm_apply,
+								gsm_play,
 								gsm_write,
+								gsm_seek,
+								gsm_trunc,
+								gsm_tell,
 								gsm_read,
 								gsm_close,
 								gsm_getcomment);

formats/format_pcm.c

@@ -149,6 +149,7 @@ static void pcm_close(struct ast_filestream *s)
 		ast_log(LOG_WARNING, "Freeing a filestream we don't seem to own\n");
 	close(s->fd);
 	free(s);
+	s = NULL;
 }
 
 static int ast_read_callback(void *data)
@@ -171,9 +172,9 @@ static int ast_read_callback(void *data)
 		s->owner->streamid = -1;
 		return 0;
 	}
-	s->fr.timelen = res / 8;
+	s->fr.samples = res;
 	s->fr.datalen = res;
-	delay = s->fr.timelen;
+	delay = s->fr.samples/8;
 	/* Lastly, process the frame */
 	if (ast_write(s->owner, &s->fr)) {
 		ast_log(LOG_WARNING, "Failed to write frame\n");
@@ -215,6 +216,11 @@ static int pcm_apply(struct ast_channel *c, struct ast_filestream *s)
 {
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int pcm_play(struct ast_filestream *s)
+{
 	ast_read_callback(s);
 	return 0;
 }
@@ -237,6 +243,36 @@ static int pcm_write(struct ast_filestream *fs, struct ast_frame *f)
 	return 0;
 }
 
+static int pcm_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	off_t offset,min,cur,max;
+
+	min = 0;
+	cur = lseek(fs->fd, 0, SEEK_CUR);
+	max = lseek(fs->fd, 0, SEEK_END);
+	if(whence == SEEK_SET)
+		offset = sample_offset;
+	if(whence == SEEK_CUR)
+		offset = sample_offset + cur;
+	if(whence == SEEK_END)
+		offset = max - sample_offset;
+	offset = (offset > max)?max:offset;
+	offset = (offset < min)?min:offset;
+	return lseek(fs->fd, offset, SEEK_SET);
+}
+
+static int pcm_trunc(struct ast_filestream *fs)
+{
+	return ftruncate(fs->fd, lseek(fs->fd,0,SEEK_CUR));
+}
+
+static long pcm_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = lseek(fs->fd, 0, SEEK_CUR);
+	return offset;
+}
+
 static char *pcm_getcomment(struct ast_filestream *s)
 {
 	return NULL;
@@ -248,7 +284,11 @@ int load_module()
 								pcm_open,
 								pcm_rewrite,
 								pcm_apply,
+								pcm_play,
 								pcm_write,
+								pcm_seek,
+								pcm_trunc,
+								pcm_tell,
 								pcm_read,
 								pcm_close,
 								pcm_getcomment);

formats/format_vox.c

@@ -259,6 +259,7 @@ static void vox_close(struct ast_filestream *s)
 		ast_log(LOG_WARNING, "Freeing a filestream we don't seem to own\n");
 	close(s->fd);
 	free(s);
+	s = NULL;
 }
 
 static int ast_read_callback(void *data)
@@ -291,9 +292,9 @@ static int ast_read_callback(void *data)
 		s->signal += decode(s->buf[x] >> 4, &s->ssindex);
 		s->signal += decode(s->buf[x] & 0xf, &s->ssindex);
 	}
-	s->fr.timelen = res / 4;
+	s->fr.samples = res * 2;
 	s->fr.datalen = res + 3;
-	delay = s->fr.timelen;
+	delay = s->fr.samples / 8;
 	/* Lastly, process the frame */
 	if (ast_write(s->owner, &s->fr)) {
 		ast_log(LOG_WARNING, "Failed to write frame\n");
@@ -335,6 +336,11 @@ static int vox_apply(struct ast_channel *c, struct ast_filestream *s)
 {
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int vox_play(struct ast_filestream *s)
+{
 	ast_read_callback(s);
 	return 0;
 }
@@ -366,13 +372,32 @@ static char *vox_getcomment(struct ast_filestream *s)
 	return NULL;
 }
 
+static int vox_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	return -1;
+}
+
+static int vox_trunc(struct ast_filestream *fs)
+{
+	return -1;
+}
+
+static long vox_tell(struct ast_filestream *fs)
+{
+	return -1;
+}
+
 int load_module()
 {
 	return ast_format_register(name, exts, AST_FORMAT_ADPCM,
 								vox_open,
 								vox_rewrite,
 								vox_apply,
+								vox_play,
 								vox_write,
+								vox_seek,
+								vox_trunc,
+								vox_tell,
 								vox_read,
 								vox_close,
 								vox_getcomment);

formats/format_wav.c

@@ -33,8 +33,6 @@
 
 struct ast_filestream {
 	void *reserved[AST_RESERVED_POINTERS];
-	/* Believe it or not, we must decode/recode to account for the
-	   weird MS format */
 	/* This is what a filestream means to us */
 	int fd; /* Descriptor */
 	int bytes;
@@ -43,7 +41,7 @@ struct ast_filestream {
 	struct ast_frame fr;				/* Frame information */
 	char waste[AST_FRIENDLY_OFFSET];	/* Buffer for sending frames, etc */
 	char empty;							/* Empty character */
-	short buf[160];				/* Two Real GSM Frames */
+	short buf[160];	
 	int foffset;
 	int lasttimeout;
 	struct timeval last;
@@ -191,14 +189,20 @@ static int check_header(int fd)
 	return 0;
 }
 
-static int update_header(int fd, int bytes)
+static int update_header(int fd)
 {
-	int cur;
-	int datalen = htoll(bytes);
-	/* int filelen = htoll(52 + ((bytes + 1) & ~0x1)); */
-	int filelen = htoll(36 + bytes);
+	off_t cur,end;
+	int datalen,filelen,bytes;
+	
 	
 	cur = lseek(fd, 0, SEEK_CUR);
+	end = lseek(fd, 0, SEEK_END);
+	/* data starts 44 bytes in */
+	bytes = end - 44;
+	datalen = htoll(bytes);
+	/* chunk size is bytes of data plus 36 bytes of header */
+	filelen = htoll(36 + bytes);
+	
 	if (cur < 0) {
 		ast_log(LOG_WARNING, "Unable to find our position\n");
 		return -1;
@@ -237,6 +241,7 @@ static int write_header(int fd)
 	unsigned short bisam = htols(16);
 	unsigned int size = htoll(0);
 	/* Write a wav header, ignoring sizes which will be filled in later */
+	lseek(fd,0,SEEK_SET);
 	if (write(fd, "RIFF", 4) != 4) {
 		ast_log(LOG_WARNING, "Unable to write header\n");
 		return -1;
@@ -396,6 +401,7 @@ static void wav_close(struct ast_filestream *s)
 		write(s->fd, &zero, 1);
 	close(s->fd);
 	free(s);
+	s = NULL;
 #if 0
 	printf("bytes = %d\n", s->bytes);
 #endif
@@ -418,6 +424,11 @@ static int ast_read_callback(void *data)
 		s->owner->streamid = -1;
 		return 0;
 	}
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+	for( x = 0; x < sizeof(tmp)/2; x++) tmp[x] = (tmp[x] << 8) | ((tmp[x] & 0xff00) >> 8);
+#endif
+
 	if (s->needsgain) {
 		for (x=0;x<sizeof(tmp)/2;x++)
 			if (tmp[x] & ((1 << GAIN) - 1)) {
@@ -434,15 +445,15 @@ static int ast_read_callback(void *data)
 		memcpy(s->buf, tmp, sizeof(s->buf));
 	}
 			
-	delay = res / 16;
+	delay = res / 2;
 	s->fr.frametype = AST_FRAME_VOICE;
 	s->fr.subclass = AST_FORMAT_SLINEAR;
 	s->fr.offset = AST_FRIENDLY_OFFSET;
 	s->fr.datalen = res;
 	s->fr.data = s->buf;
 	s->fr.mallocd = 0;
-	s->fr.timelen = delay;
-
+	s->fr.samples = delay;
+	delay /= 8;
 	/* Lastly, process the frame */	
 	if (delay != s->lasttimeout) {
 		s->owner->streamid = ast_sched_add(s->owner->sched, delay, ast_read_callback, s);
@@ -465,6 +476,11 @@ static int wav_apply(struct ast_channel *c, struct ast_filestream *s)
 {
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int wav_play(struct ast_filestream *s)
+{
 	ast_read_callback(s);
 	return 0;
 }
@@ -480,7 +496,7 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 		return -1;
 	}
 	if (f->subclass != AST_FORMAT_SLINEAR) {
-		ast_log(LOG_WARNING, "Asked to write non-GSM frame (%d)!\n", f->subclass);
+		ast_log(LOG_WARNING, "Asked to write non-SLINEAR frame (%d)!\n", f->subclass);
 		return -1;
 	}
 	if (f->datalen > sizeof(tmp)) {
@@ -505,6 +521,11 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 				tmpf = -32768.0;
 			tmp[x] = tmpf;
 			tmp[x] &= ~((1 << GAIN) - 1);
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+			tmp[x] = (tmp[x] << 8) | ((tmp[x] & 0xff00) >> 8);
+#endif
+
 		}
 		if ((write (fs->fd, tmp, f->datalen) != f->datalen) ) {
 			ast_log(LOG_WARNING, "Bad write (%d): %s\n", res, strerror(errno));
@@ -516,12 +537,47 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 	}
 	
 	fs->bytes += f->datalen;
-	update_header(fs->fd, fs->bytes);
+	update_header(fs->fd);
 		
 	return 0;
 
 }
 
+static int wav_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	off_t min,max,cur;
+	long offset,samples;
+	
+	samples = sample_offset * 2; /* SLINEAR is 16 bits mono, so sample_offset * 2 = bytes */
+	min = 44; /* wav header is 44 bytes */
+	cur = lseek(fs->fd, 0, SEEK_CUR);
+	max = lseek(fs->fd, 0, SEEK_END);
+	if(whence == SEEK_SET)
+		offset = samples + min;
+	if(whence == SEEK_CUR)
+		offset = samples + cur;
+	if(whence == SEEK_END)
+		offset = max - samples; 
+	offset = (offset > max)?max:offset;
+	offset = (offset < min)?min:offset;
+	return lseek(fs->fd,offset,SEEK_SET);
+}
+
+static int wav_trunc(struct ast_filestream *fs)
+{
+	if(ftruncate(fs->fd, lseek(fs->fd,0,SEEK_CUR)))
+		return -1;
+	return update_header(fs->fd);
+}
+
+static long wav_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = lseek(fs->fd, 0, SEEK_CUR);
+	/* subtract header size to get samples, then divide by 2 for 16 bit samples */
+	return (offset - 44)/2;
+}
+
 static char *wav_getcomment(struct ast_filestream *s)
 {
 	return NULL;
@@ -533,7 +589,11 @@ int load_module()
 								wav_open,
 								wav_rewrite,
 								wav_apply,
+								wav_play,
 								wav_write,
+								wav_seek,
+								wav_trunc,
+								wav_tell,
 								wav_read,
 								wav_close,
 								wav_getcomment);

formats/format_wav_gsm.c

@@ -202,12 +202,16 @@ static int check_header(int fd)
 	return 0;
 }
 
-static int update_header(int fd, int bytes)
+static int update_header(int fd)
 {
-	int cur;
-	int datalen = htoll(bytes);
-	int filelen = htoll(52 + ((bytes + 1) & ~0x1));
+	off_t cur,end,bytes;
+	int datalen,filelen;
+	
 	cur = lseek(fd, 0, SEEK_CUR);
+	end = lseek(fd, 0, SEEK_END);
+	bytes = end - 52;
+	datalen = htoll(bytes);
+	filelen = htoll(52 + ((bytes + 1) & ~0x1));
 	if (cur < 0) {
 		ast_log(LOG_WARNING, "Unable to find our position\n");
 		return -1;
@@ -423,6 +427,7 @@ static void wav_close(struct ast_filestream *s)
 		write(s->fd, &zero, 1);
 	close(s->fd);
 	free(s);
+	s = NULL;
 }
 
 static int ast_read_callback(void *data)
@@ -438,7 +443,7 @@ static int ast_read_callback(void *data)
 	s->fr.frametype = AST_FRAME_VOICE;
 	s->fr.subclass = AST_FORMAT_GSM;
 	s->fr.offset = AST_FRIENDLY_OFFSET;
-	s->fr.timelen = 20;
+	s->fr.samples = 160;
 	s->fr.datalen = 33;
 	s->fr.mallocd = 0;
 	if (s->secondhalf) {
@@ -497,6 +502,11 @@ static int wav_apply(struct ast_channel *c, struct ast_filestream *s)
 {
 	/* Select our owner for this stream, and get the ball rolling. */
 	s->owner = c;
+	return 0;
+}
+
+static int wav_play(struct ast_filestream *s)
+{
 	ast_read_callback(s);
 	return 0;
 }
@@ -523,7 +533,7 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 				return -1;
 			}
 			fs->bytes += 65;
-			update_header(fs->fd, fs->bytes);
+			update_header(fs->fd);
 		} else {
 			/* Copy the data and do nothing */
 			memcpy(fs->gsm, f->data + len, 33);
@@ -534,6 +544,43 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 	return 0;
 }
 
+static int wav_seek(struct ast_filestream *fs, long sample_offset, int whence)
+{
+	off_t offset,distance,cur,min,max;
+	min = 52;
+	cur = lseek(fs->fd, 0, SEEK_CUR);
+	max = lseek(fs->fd, 0, SEEK_END);
+	/* I'm getting sloppy here, I'm only going to go to even splits of the 2
+	 * frames, if you want tighter cuts use format_gsm, format_pcm, or format_wav */
+	distance = (sample_offset/320) * 65;
+	if(whence == SEEK_SET)
+		offset = distance + min;
+	if(whence == SEEK_CUR)
+		offset = distance + cur;
+	if(whence == SEEK_END)
+		offset = max - distance;
+	offset = (offset < min)?min:offset;
+	offset = (offset > max)?max:offset;
+	fs->secondhalf = 0;
+	return lseek(fs->fd, offset, SEEK_SET);
+}
+
+static int wav_trunc(struct ast_filestream *fs)
+{
+	if(ftruncate(fs->fd, lseek(fs->fd, 0, SEEK_CUR)))
+		return -1;
+	return update_header(fs->fd);
+}
+
+static long wav_tell(struct ast_filestream *fs)
+{
+	off_t offset;
+	offset = lseek(fs->fd, 0, SEEK_CUR);
+	/* since this will most likely be used later in play or record, lets stick
+	 * to that level of resolution, just even frames boundaries */
+	return (offset - 52)/65/320;
+}
+
 static char *wav_getcomment(struct ast_filestream *s)
 {
 	return NULL;
@@ -545,7 +592,11 @@ int load_module()
 								wav_open,
 								wav_rewrite,
 								wav_apply,
+								wav_play,
 								wav_write,
+								wav_seek,
+								wav_trunc,
+								wav_tell,
 								wav_read,
 								wav_close,
 								wav_getcomment);