allow to set custom file name for each diststream

libs/ardour/ardour/audio_diskstream.h

@@ -108,6 +108,7 @@ class LIBARDOUR_API AudioDiskstream : public Diskstream
 	int remove_channel (uint32_t how_many);
 
 	bool set_name (std::string const &);
+	bool set_write_source_name (const std::string& str);
 
 	/* stateful */
 

libs/ardour/ardour/diskstream.h

@@ -70,6 +70,15 @@ class LIBARDOUR_API Diskstream : public SessionObject, public PublicDiskstream
 	virtual ~Diskstream();
 
 	virtual bool set_name (const std::string& str);
+	virtual bool set_write_source_name (const std::string& str);
+
+	std::string write_source_name () const {
+		if (_write_source_name.empty()) {
+			return name();
+		} else {
+			return _write_source_name;
+		}
+	}
 
 	virtual std::string steal_write_source_name () { return std::string(); }
 
@@ -312,6 +321,8 @@ class LIBARDOUR_API Diskstream : public SessionObject, public PublicDiskstream
 
 	bool          in_set_state;
 
+	std::string   _write_source_name;
+
 	Glib::Threads::Mutex state_lock;
 
 	PBD::ScopedConnectionList playlist_connections;

libs/ardour/ardour/midi_diskstream.h

@@ -76,6 +76,7 @@ class LIBARDOUR_API MidiDiskstream : public Diskstream
 	int use_copy_playlist ();
 
 	bool set_name (std::string const &);
+	bool set_write_source_name (const std::string& str);
 
 	/* stateful */
 	XMLNode& get_state(void);

libs/ardour/audio_diskstream.cc

@@ -1908,7 +1908,7 @@ AudioDiskstream::use_new_write_source (uint32_t n)
 
 	try {
 		if ((chan->write_source = _session.create_audio_source_for_session (
-			     n_channels().n_audio(), name(), n, destructive())) == 0) {
+			     n_channels().n_audio(), write_source_name(), n, destructive())) == 0) {
 			throw failed_constructor();
 		}
 	}
@@ -2451,6 +2451,9 @@ AudioDiskstream::ChannelInfo::~ChannelInfo ()
 bool
 AudioDiskstream::set_name (string const & name)
 {
+	if (_name == name) {
+		return true;
+	}
 	Diskstream::set_name (name);
 
 	/* get a new write source so that its name reflects the new diskstream name */
@@ -2465,3 +2468,24 @@ AudioDiskstream::set_name (string const & name)
 
 	return true;
 }
+
+bool
+AudioDiskstream::set_write_source_name (const std::string& str) {
+	if (_write_source_name == str) {
+		return true;
+	}
+
+	Diskstream::set_write_source_name (str);
+
+	if (_write_source_name == name()) {
+		return true;
+	}
+	boost::shared_ptr<ChannelList> c = channels.reader();
+	ChannelList::iterator i;
+	int n = 0;
+
+	for (n = 0, i = c->begin(); i != c->end(); ++i, ++n) {
+		use_new_write_source (n);
+	}
+	return true;
+}

libs/ardour/diskstream.cc

@@ -440,6 +440,12 @@ Diskstream::set_name (const string& str)
 	return true;
 }
 
+bool
+Diskstream::set_write_source_name (const std::string& str) {
+	_write_source_name = str;
+	return true;
+}
+
 XMLNode&
 Diskstream::get_state ()
 {

libs/ardour/midi_diskstream.cc

@@ -1223,7 +1223,7 @@ MidiDiskstream::use_new_write_source (uint32_t n)
 
 	try {
 		_write_source = boost::dynamic_pointer_cast<SMFSource>(
-			_session.create_midi_source_for_session (name ()));
+			_session.create_midi_source_for_session (write_source_name ()));
 
 		if (!_write_source) {
 			throw failed_constructor();
@@ -1441,6 +1441,9 @@ MidiDiskstream::get_playback (MidiBuffer& dst, framecnt_t nframes)
 bool
 MidiDiskstream::set_name (string const & name)
 {
+	if (_name == name) {
+		return true;
+	}
 	Diskstream::set_name (name);
 
 	/* get a new write source so that its name reflects the new diskstream name */
@@ -1449,6 +1452,19 @@ MidiDiskstream::set_name (string const & name)
 	return true;
 }
 
+bool
+MidiDiskstream::set_write_source_name (const std::string& str) {
+	if (_write_source_name == str) {
+		return true;
+	}
+	Diskstream::set_write_source_name (str);
+	if (_write_source_name == name()) {
+		return true;
+	}
+	use_new_write_source (0);
+	return true;
+}
+
 boost::shared_ptr<MidiBuffer>
 MidiDiskstream::get_gui_feed_buffer () const
 {

libs/ardour/route.cc

@@ -3562,14 +3562,14 @@ Route::save_as_template (const string& path, const string& name)
 bool
 Route::set_name (const string& str)
 {
-	bool ret;
-	string ioproc_name;
-	string name;
+	if (str == name()) {
+		return true;
+	}
 
-	name = Route::ensure_track_or_route_name (str, _session);
+	string name = Route::ensure_track_or_route_name (str, _session);
 	SessionObject::set_name (name);
 
-	ret = (_input->set_name(name) && _output->set_name(name));
+	bool ret = (_input->set_name(name) && _output->set_name(name));
 
 	if (ret) {
 		/* rename the main outs. Leave other IO processors