[Freeswitch-svn] [commit] r3139 - in freeswitch/trunk/src/mod: applications/mod_conference formats/mod_sndfile

Freeswitch SVN anthm at freeswitch.org
Sat Oct 21 17:19:42 EDT 2006


Author: anthm
Date: Sat Oct 21 17:19:40 2006
New Revision: 3139

Modified:
   freeswitch/trunk/src/mod/applications/mod_conference/mod_conference.c
   freeswitch/trunk/src/mod/formats/mod_sndfile/mod_sndfile.c

Log:
conference recording

Modified: freeswitch/trunk/src/mod/applications/mod_conference/mod_conference.c
==============================================================================
--- freeswitch/trunk/src/mod/applications/mod_conference/mod_conference.c	(original)
+++ freeswitch/trunk/src/mod/applications/mod_conference/mod_conference.c	Sat Oct 21 17:19:40 2006
@@ -73,7 +73,8 @@
 	MFLAG_CAN_SPEAK = (1 << 1),
 	MFLAG_CAN_HEAR = (1 << 2),
 	MFLAG_KICKED = (1 << 3),
-	MFLAG_ITHREAD = (1 << 4)
+	MFLAG_ITHREAD = (1 << 4),
+	MFLAG_NOCHANNEL = (1 << 5)
 } member_flag_t;
 
 
@@ -170,6 +171,7 @@
 	switch_mutex_t *audio_out_mutex;
 	switch_codec_t read_codec;
 	switch_codec_t write_codec;
+	char *rec_path;
 	uint8_t *frame;
 	uint8_t *mux_frame;
 	uint32_t buflen;
@@ -186,6 +188,15 @@
 	struct conference_member *next;
 };
 
+/* Record Node */
+struct conference_record {
+	conference_obj_t *conference;
+	char *path;
+	switch_memory_pool_t *pool;
+};
+typedef struct conference_record conference_record_t;
+
+
 /* Function Prototypes */
 static uint32_t next_member_id(void);
 static conference_relationship_t *member_get_relationship(conference_member_t *member, conference_member_t *other_member);
@@ -220,6 +231,7 @@
 static conference_obj_t *conference_new(char *name, switch_xml_t profile, switch_memory_pool_t *pool);
 static void switch_change_sln_volume(int16_t *data, uint32_t samples, int32_t vol);
 static switch_status_t chat_send(char *proto, char *from, char *to, char *subject, char *body, char *hint);
+static void launch_conference_record_thread(conference_obj_t *conference, char *path);
 
 /* Return a Distinct ID # */
 static uint32_t next_member_id(void)
@@ -294,6 +306,11 @@
 	conference_member_t *member = NULL;
 
 	for(member = conference->members; member; member = member->next) {
+		
+		if (switch_test_flag(member, MFLAG_NOCHANNEL)) {
+			continue;
+		}
+
 		if (member->id == id) {
 			break;
 		}
@@ -302,6 +319,17 @@
 	return member;
 }
 
+static void conference_record_stop(conference_obj_t *conference, char *path)
+{
+	conference_member_t *member = NULL;
+
+	for(member = conference->members; member; member = member->next) {
+		if (switch_test_flag(member, MFLAG_NOCHANNEL) && (!path || !strcmp(path, member->rec_path))) {
+			switch_clear_flag_locked(member, MFLAG_RUNNING);
+		}
+	}
+}
+
 /* Add a custom relationship to a member */
 static conference_relationship_t *member_add_relationship(conference_member_t *member, uint32_t id)
 {
@@ -359,39 +387,41 @@
 	member->next = conference->members;
 	member->energy_level = conference->energy_level;
 	conference->members = member;
-	conference->count++;
 
-	if (switch_event_create(&event, SWITCH_EVENT_PRESENCE_IN) == SWITCH_STATUS_SUCCESS) {
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "proto", CONF_CHAT_PROTO);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "login", "%s", conference->name);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "from", "%s@%s", conference->name, conference->domain);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "status", "Active (%d caller%s)", conference->count, conference->count == 1 ? "" : "s");
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_type", "presence");
-		switch_event_fire(&event);
-	}
 
+	if (!switch_test_flag(member, MFLAG_NOCHANNEL)) {
+		conference->count++;
+		if (switch_event_create(&event, SWITCH_EVENT_PRESENCE_IN) == SWITCH_STATUS_SUCCESS) {
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "proto", CONF_CHAT_PROTO);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "login", "%s", conference->name);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "from", "%s@%s", conference->name, conference->domain);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "status", "Active (%d caller%s)", conference->count, conference->count == 1 ? "" : "s");
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_type", "presence");
+			switch_event_fire(&event);
+		}
 
-	if (conference->enter_sound) {
-		conference_play_file(conference, conference->enter_sound, CONF_DEFAULT_LEADIN);
-	}
 	
-	if (conference->count == 1 && conference->alone_sound) {
-		conference_play_file(conference, conference->alone_sound, 0);
-	}
+		if (conference->enter_sound) {
+			conference_play_file(conference, conference->enter_sound, CONF_DEFAULT_LEADIN);
+		}
+	
+		if (conference->count == 1 && conference->alone_sound) {
+			conference_play_file(conference, conference->alone_sound, 0);
+		}
 
-	if (conference->min && conference->count >= conference->min) {
-		switch_set_flag(conference, CFLAG_ENFORCE_MIN);	
-	}
+		if (conference->min && conference->count >= conference->min) {
+			switch_set_flag(conference, CFLAG_ENFORCE_MIN);	
+		}
 
-	if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
-		switch_channel_t *channel = switch_core_session_get_channel(member->session);
-		switch_channel_event_set_data(channel, event);
+		if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
+			switch_channel_t *channel = switch_core_session_get_channel(member->session);
+			switch_channel_event_set_data(channel, event);
 
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Conference-Name", conference->name);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Action", "add-member");
-		switch_event_fire(&event);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Conference-Name", conference->name);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Action", "add-member");
+			switch_event_fire(&event);
+		}
 	}
-	
 	switch_mutex_unlock(member->flag_mutex);
 	switch_mutex_unlock(member->audio_out_mutex);
 	switch_mutex_unlock(member->audio_in_mutex);
@@ -425,39 +455,41 @@
 		last = imember;
 	}
 
-	conference->count--;
+
 	member->conference = NULL;
 
-	if (switch_event_create(&event, SWITCH_EVENT_PRESENCE_IN) == SWITCH_STATUS_SUCCESS) {
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "proto", CONF_CHAT_PROTO);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "login", "%s", conference->name);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "from", "%s@%s", conference->name, conference->domain);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "status", "Active (%d caller%s)", conference->count, conference->count == 1 ? "" : "s");
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_type", "presence");
-		switch_event_fire(&event);
-	}
+	if (!switch_test_flag(member, MFLAG_NOCHANNEL)) {
+		conference->count--;
+		if (switch_event_create(&event, SWITCH_EVENT_PRESENCE_IN) == SWITCH_STATUS_SUCCESS) {
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "proto", CONF_CHAT_PROTO);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "login", "%s", conference->name);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "from", "%s@%s", conference->name, conference->domain);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "status", "Active (%d caller%s)", conference->count, conference->count == 1 ? "" : "s");
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "event_type", "presence");
+			switch_event_fire(&event);
+		}
 
-	if ((conference->min && switch_test_flag(conference, CFLAG_ENFORCE_MIN) && conference->count < conference->min) 
-		|| (switch_test_flag(conference, CFLAG_DYNAMIC) && conference->count == 0) ) {
-		switch_set_flag(conference, CFLAG_DESTRUCT);
-	} else { 
-		if (conference->exit_sound) {
-			conference_play_file(conference, conference->exit_sound, 0);
+		if ((conference->min && switch_test_flag(conference, CFLAG_ENFORCE_MIN) && conference->count < conference->min) 
+			|| (switch_test_flag(conference, CFLAG_DYNAMIC) && conference->count == 0) ) {
+			switch_set_flag(conference, CFLAG_DESTRUCT);
+		} else { 
+			if (conference->exit_sound) {
+				conference_play_file(conference, conference->exit_sound, 0);
+			}
+			if (conference->count == 1 && conference->alone_sound) {
+				conference_play_file(conference, conference->alone_sound, 0);
+			} 
 		}
-		if (conference->count == 1 && conference->alone_sound) {
-			conference_play_file(conference, conference->alone_sound, 0);
-		} 
-	}
 	
-	if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
-		switch_channel_t *channel = switch_core_session_get_channel(member->session);
-		switch_channel_event_set_data(channel, event);
+		if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
+			switch_channel_t *channel = switch_core_session_get_channel(member->session);
+			switch_channel_event_set_data(channel, event);
 
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Conference-Name", conference->name);
-		switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Action", "del-member");
-		switch_event_fire(&event);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Conference-Name", conference->name);
+			switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Action", "del-member");
+			switch_event_fire(&event);
+		}
 	}
-
 	switch_mutex_unlock(member->flag_mutex);
 	switch_mutex_unlock(member->audio_out_mutex);
 	switch_mutex_unlock(member->audio_in_mutex);
@@ -488,7 +520,9 @@
 		return NULL;
 	}
 
+	switch_mutex_lock(globals.hash_mutex);
 	globals.threads++;
+	switch_mutex_unlock(globals.hash_mutex);
 
 	while(globals.running && !switch_test_flag(conference, CFLAG_DESTRUCT)) {
 		uint8_t file_frame[CONF_BUFFER_SIZE] = {0};
@@ -672,23 +706,32 @@
 		switch_mutex_lock(conference->mutex);
 
 		for(imember = conference->members; imember; imember = imember->next) {
-			switch_channel_t *channel = switch_core_session_get_channel(imember->session);
-			// add this little bit to preserve the bridge cause code in case of an early media call that
-			// never answers
-			if (switch_test_flag(conference, CFLAG_ANSWERED)) 
-				switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);	
-			else 	
-				// put actual cause code from outbound channel hangup here
-				switch_channel_hangup(channel, conference->bridge_hangup_cause);
+			switch_channel_t *channel;
+
+			if (!switch_test_flag(imember, MFLAG_NOCHANNEL)) {
+				channel = switch_core_session_get_channel(imember->session);
+
+				// add this little bit to preserve the bridge cause code in case of an early media call that
+				// never answers
+				if (switch_test_flag(conference, CFLAG_ANSWERED)) {
+					switch_channel_hangup(channel, SWITCH_CAUSE_NORMAL_CLEARING);	
+				} else 	{
+					// put actual cause code from outbound channel hangup here
+					switch_channel_hangup(channel, conference->bridge_hangup_cause);
+				}
+			}
+
 			switch_clear_flag_locked(imember, MFLAG_RUNNING);
 		}
 
 		switch_mutex_unlock(conference->mutex);
 		
 		/* Wait till everybody is out */
-
+		switch_clear_flag_locked(conference, CFLAG_RUNNING);
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Write Lock ON\n");
 		switch_thread_rwlock_wrlock(conference->rwlock);
 		switch_thread_rwlock_unlock(conference->rwlock);
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Write Lock OFF\n");
 
 		switch_mutex_lock(globals.hash_mutex);		
 		switch_core_hash_delete(globals.conference_hash, conference->name);
@@ -710,7 +753,10 @@
 		
 		switch_event_fire(&event);
 	}
+	switch_mutex_lock(globals.hash_mutex);
 	globals.threads--;	
+	switch_mutex_unlock(globals.hash_mutex);
+
 	return NULL;
 }
 
@@ -1027,6 +1073,117 @@
 	}
 }
 
+
+/* Sub-Routine called by a record entity inside a conference */
+static void *SWITCH_THREAD_FUNC conference_record_thread_run(switch_thread_t *thread, void *obj)
+{
+	switch_frame_t write_frame = {0};
+	uint8_t data[SWITCH_RECCOMMENDED_BUFFER_SIZE];
+	switch_file_handle_t fh = {0};
+	conference_member_t smember = {0}, *member;
+	conference_record_t *rec = (conference_record_t *) obj;
+    uint32_t divider = 1000 / rec->conference->interval;
+    uint32_t samples = (rec->conference->rate / divider);
+    uint32_t bytes = samples * 2;
+	uint32_t mux_used;
+	char *vval;
+
+	switch_mutex_lock(globals.hash_mutex);
+	globals.threads++;
+	switch_mutex_unlock(globals.hash_mutex);		
+
+	member = &smember;
+
+	member->flags = MFLAG_CAN_HEAR | MFLAG_NOCHANNEL | MFLAG_RUNNING;
+
+	write_frame.data = data;
+    write_frame.buflen = sizeof(data);
+	assert(rec->conference != NULL);
+
+	member->conference = rec->conference;
+	member->native_rate = rec->conference->rate;
+	member->rec_path = rec->path;
+	fh.channels = 1;
+	fh.samplerate = rec->conference->rate;
+	member->id = next_member_id();
+	member->pool = rec->pool;
+
+	switch_mutex_init(&member->flag_mutex, SWITCH_MUTEX_NESTED, rec->pool);
+	switch_mutex_init(&member->audio_in_mutex, SWITCH_MUTEX_NESTED, rec->pool);
+	switch_mutex_init(&member->audio_out_mutex, SWITCH_MUTEX_NESTED, rec->pool);
+
+	/* Setup an audio buffer for the incoming audio */
+	if (switch_buffer_create_dynamic(&member->audio_buffer, CONF_DBLOCK_SIZE, CONF_DBUFFER_SIZE, 0) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Memory Error Creating Audio Buffer!\n");
+		goto end;
+	}
+
+	/* Setup an audio buffer for the outgoing audio */
+	if (switch_buffer_create_dynamic(&member->mux_buffer, CONF_DBLOCK_SIZE, CONF_DBUFFER_SIZE, 0) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Memory Error Creating Audio Buffer!\n");
+		goto end;
+	}
+
+	if (conference_add_member(rec->conference, member) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Joining Conference\n");
+		goto end;
+	}
+
+
+	if (switch_core_file_open(&fh,
+							  rec->path,
+							  SWITCH_FILE_FLAG_WRITE | SWITCH_FILE_DATA_SHORT,
+							  rec->pool) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error Opening File [%s]\n", rec->path);
+		goto end;
+	}
+	
+	if ((vval = switch_mprintf("Conference %s", rec->conference->name))) {
+		switch_core_file_set_string(&fh, SWITCH_AUDIO_COL_STR_TITLE, vval);
+		switch_safe_free(vval);
+	}
+
+	while(switch_test_flag(member, MFLAG_RUNNING) && switch_test_flag(rec->conference, CFLAG_RUNNING) && rec->conference->count) {
+		if ((mux_used = (uint32_t) switch_buffer_inuse(member->mux_buffer)) >= bytes) {
+			/* Flush the output buffer and write all the data (presumably muxed) back to the channel */
+			switch_mutex_lock(member->audio_out_mutex);
+			write_frame.data = data;
+			while ((write_frame.datalen = (uint32_t)switch_buffer_read(member->mux_buffer, write_frame.data, mux_used))) {
+				if (!switch_test_flag((&fh), SWITCH_FILE_PAUSE)) {
+					switch_size_t len = (switch_size_t) mux_used / 2;
+					switch_core_file_write(&fh, write_frame.data, &len);
+				}
+			}
+			switch_mutex_unlock(member->audio_out_mutex);
+		} else {
+			switch_yield(20000);
+		}
+	} /* Rinse ... Repeat */
+
+	conference_del_member(rec->conference, member);
+	switch_buffer_destroy(&member->audio_buffer);
+	switch_buffer_destroy(&member->mux_buffer);
+	switch_clear_flag_locked(member, MFLAG_RUNNING);
+	switch_core_file_close(&fh);
+	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Recording Stopped\n");
+
+ end:
+
+
+	if (rec->pool) {
+		switch_memory_pool_t *pool = rec->pool;
+		rec = NULL;
+		switch_core_destroy_memory_pool(&pool);
+	}
+
+	switch_mutex_lock(globals.hash_mutex);
+	globals.threads--;
+	switch_mutex_unlock(globals.hash_mutex);
+
+	return NULL;
+}
+
+
 /* Make files stop playing in a conference either the current one or all of them */
 static uint32_t conference_stop_file(conference_obj_t *conference, file_stop_t stop)
 {
@@ -1329,12 +1486,22 @@
 	switch_mutex_lock(conference->member_mutex);
 
 	for (member = conference->members; member; member = member->next) {
-		switch_channel_t *channel = switch_core_session_get_channel(member->session);
-		switch_caller_profile_t *profile = switch_channel_get_caller_profile(channel);
-		char *uuid = switch_core_session_get_uuid(member->session);
-		char *name = switch_channel_get_name(channel);
+		switch_channel_t *channel;
+		switch_caller_profile_t *profile;
+		char *uuid;
+		char *name;
 		uint32_t count = 0;
 
+		if (switch_test_flag(member, MFLAG_NOCHANNEL)) {
+			continue;
+		}
+
+		uuid = switch_core_session_get_uuid(member->session);
+		channel = switch_core_session_get_channel(member->session);
+		profile = switch_channel_get_caller_profile(channel);
+		name = switch_channel_get_name(channel);
+
+
 		stream->write_function(stream, "%u%s%s%s%s%s%s%s%s%s", 
 							   member->id,delim,
 							   name,delim,
@@ -1366,9 +1533,16 @@
 	stream->write_function(stream, "<pre>Current Callers:\n");
 
 	for (member = conference->members; member; member = member->next) {
-		switch_channel_t *channel = switch_core_session_get_channel(member->session);
-		switch_caller_profile_t *profile = switch_channel_get_caller_profile(channel);
+		switch_channel_t *channel;
+		switch_caller_profile_t *profile;
 
+		if (switch_test_flag(member, MFLAG_NOCHANNEL)) {
+			continue;
+		}
+		channel = switch_core_session_get_channel(member->session);
+		profile = switch_channel_get_caller_profile(channel);
+
+
 		stream->write_function(stream, "*) %s (%s)\n", 
 							   profile->caller_id_name,
 							   profile->caller_id_number
@@ -1846,6 +2020,15 @@
 						stream->write_function(stream, "usage undeaf <id>\n");
 						goto done;
 					}
+
+				} else if (!strcasecmp(argv[1], "record")) {
+					if (argc > 2) {
+						launch_conference_record_thread(conference, argv[2]);
+					} else {
+						stream->write_function(stream, "-ERR No Path Specified!\n");
+					}
+				} else if (!strcasecmp(argv[1], "norecord")) {
+					conference_record_stop(conference, argv[1]);
 				} else if (!strcasecmp(argv[1], "kick")) {
 					if (argc > 2) {
 						uint32_t id = atoi(argv[2]);
@@ -2477,6 +2660,8 @@
 		goto codec_done1;
 	}
 	
+
+
 	/* Prepare MUTEXS */
 	member.id = next_member_id();
 	member.pool = pool;
@@ -2557,6 +2742,34 @@
 	switch_thread_create(&thread, thd_attr, conference_thread_run, conference, conference->pool);
 }
 
+static void launch_conference_record_thread(conference_obj_t *conference, char *path)
+{
+	switch_thread_t *thread;
+	switch_threadattr_t *thd_attr = NULL;
+	switch_memory_pool_t *pool;
+	conference_record_t *rec;
+	
+	/* Setup a memory pool to use. */
+	if (switch_core_new_memory_pool(&pool) != SWITCH_STATUS_SUCCESS) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Pool Failure\n");
+	}
+
+	/* Create a node object*/
+	if (!(rec = switch_core_alloc(pool, sizeof(*rec)))) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Alloc Failure\n");
+		switch_core_destroy_memory_pool(&pool);
+	}
+	
+	rec->conference = conference;
+	rec->path = switch_core_strdup(pool, path);
+	rec->pool = pool;
+
+	switch_threadattr_create(&thd_attr, rec->pool);
+	switch_threadattr_detach_set(thd_attr, 1);
+	switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
+	switch_thread_create(&thread, thd_attr, conference_record_thread_run, rec, rec->pool);
+}
+
 static void *SWITCH_THREAD_FUNC input_thread_run(switch_thread_t *thread, void *obj)
 {
 	conference_member_t *member = obj;
@@ -3087,6 +3300,7 @@
 	if (globals.running) {
 		globals.running = 0;
 		while (globals.threads) {
+			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Waiting for %d threads\n", globals.threads);
 			switch_yield(100000);
 		}
 	}

Modified: freeswitch/trunk/src/mod/formats/mod_sndfile/mod_sndfile.c
==============================================================================
--- freeswitch/trunk/src/mod/formats/mod_sndfile/mod_sndfile.c	(original)
+++ freeswitch/trunk/src/mod/formats/mod_sndfile/mod_sndfile.c	Sat Oct 21 17:19:40 2006
@@ -73,6 +73,8 @@
 	}
 
 	if (mode & SFM_WRITE) {
+		sf_count_t  frames = 0 ;
+
 		context->sfinfo.channels = handle->channels;
 		context->sfinfo.samplerate = handle->samplerate;
 		if (handle->samplerate == 8000 || handle->samplerate == 16000) {
@@ -82,6 +84,8 @@
 		} else if (handle->samplerate == 32000) {
 			context->sfinfo.format |= SF_FORMAT_PCM_32;
 		}
+
+        sf_command (context->handle, SFC_FILE_TRUNCATE, &frames, sizeof (frames)) ;
 
 		/* Could add more else if() but i am too lazy atm.. */
 		if (!strcasecmp(ext, "wav")) {



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