Fixes case where audiofiles used wrong peakfiles

libs/ardour/ardour/audio_playlist_source.h

@@ -37,7 +37,7 @@ public:
 	virtual ~AudioPlaylistSource ();
 
 	bool empty() const;
-	std::string generate_peak_path (const std::string& audio_path);
+	std::string construct_peak_filepath (const std::string& audio_path) const;
 	uint32_t   n_channels() const;
 	bool clamped_at_unity () const { return false; }
 

libs/ardour/ardour/audiofilesource.h

@@ -39,7 +39,7 @@ class LIBARDOUR_API AudioFileSource : public AudioSource, public FileSource {
 public:
 	virtual ~AudioFileSource ();
 
-	std::string generate_peak_path (const std::string& audio_path);
+	std::string construct_peak_filepath (const std::string& audio_filepath) const;
 	std::string find_broken_peakfile (const std::string& missing_peak_path,
 	                                  const std::string& audio_path);
 

libs/ardour/ardour/audiosource.h

@@ -136,9 +136,9 @@ class LIBARDOUR_API AudioSource : virtual public Source,
 
 	virtual framecnt_t read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const = 0;
 	virtual framecnt_t write_unlocked (Sample *dst, framecnt_t cnt) = 0;
-	virtual std::string generate_peak_path(const std::string& audio_path) = 0;
+	virtual std::string construct_peak_filepath(const std::string& audio_filepath) const = 0;
 	virtual std::string find_broken_peakfile (std::string /* missing_peak_path */,
-	                                          std::string audio_path) { return generate_peak_path (audio_path); }
+	                                          std::string audio_path) { return construct_peak_filepath (audio_path); }
 
 	virtual int read_peaks_with_fpp (PeakData *peaks,
 					 framecnt_t npeaks, framepos_t start, framecnt_t cnt,

libs/ardour/ardour/session.h

@@ -198,7 +198,7 @@ class LIBARDOUR_API Session : public PBD::StatefulDestructible, public PBD::Scop
 	std::string plugins_dir () const;     ///< Plugin state
 	std::string externals_dir () const;   ///< Links to external files
 
-	std::string peak_path (const std::string&) const;
+	std::string construct_peak_filepath (const std::string&) const;
 
 	bool audio_source_name_is_unique (const std::string& name);
 	std::string format_audio_source_name (const std::string& legalized_base, uint32_t nchan, uint32_t chan, bool destructive, bool take_required, uint32_t cnt, bool related_exists);

libs/ardour/audio_playlist_source.cc

@@ -217,7 +217,7 @@ AudioPlaylistSource::setup_peakfile ()
 }
 
 string
-AudioPlaylistSource::generate_peak_path (const string& /*audio_path_IGNORED*/)
+AudioPlaylistSource::construct_peak_filepath (const string& /*audio_path_IGNORED*/) const
 {
 	return _peak_path;
 }

libs/ardour/audiofilesource.cc

@@ -164,26 +164,9 @@ AudioFileSource::init (const string& pathstr, bool must_exist)
 }
 
 string
-AudioFileSource::generate_peak_path (const string& audio_path)
+AudioFileSource::construct_peak_filepath (const string& audio_path) const
 {
-	string base;
+	return _session.construct_peak_filepath (audio_path);
-
-	string::size_type suffix = audio_path.find_last_of ('.');
-
-	if (suffix != string::npos) {
-		base = audio_path.substr (0, suffix);
-	} else {
-		warning << string_compose (_("Odd audio file path: %1"), audio_path) << endmsg;
-		base = audio_path;
-	}
-
-	base += '%';
-	base += (char) ('A' + _channel);
-
-	/* pass in the name/path of the source, with no audio file type suffix
-	 */
-	
-	return _session.peak_path (base);
 }
 
 string
@@ -230,7 +213,7 @@ AudioFileSource::find_broken_peakfile (const string& peak_path, const string& au
 string
 AudioFileSource::broken_peak_path (const string& audio_path)
 {
-	return _session.peak_path (basename_nosuffix (audio_path));
+	return _session.construct_peak_filepath (basename_nosuffix (audio_path));
 }
 
 string

libs/ardour/audiosource.cc

@@ -239,7 +239,7 @@ AudioSource::initialize_peakfile (const string& audio_path)
 {
 	GStatBuf statbuf;
 
-	_peakpath = generate_peak_path (audio_path);
+	_peakpath = construct_peak_filepath (audio_path);
 
 	DEBUG_TRACE(DEBUG::Peaks, string_compose ("Initialize Peakfile %1 for Audio file %2\n", _peakpath, audio_path));
 

libs/ardour/session.cc

@@ -107,6 +107,8 @@
 
 #include "i18n.h"
 
+#include <glibmm/checksum.h>
+
 namespace ARDOUR {
 class MidiSource;
 class Processor;
@@ -4362,19 +4364,20 @@ Session::count_sources_by_origin (const string& path)
 }
 
 string
-Session::peak_path (const string& base) const
+Session::construct_peak_filepath (const string& filepath) const
 {
-	if (Glib::path_is_absolute (base)) {
+	string interchange_dir_string = string (interchange_dir_name) + G_DIR_SEPARATOR;
+
+	if (Glib::path_is_absolute (filepath)) {
 
 		/* rip the session dir from the audiofile source */
 
 		string session_path;
-		string interchange_dir_string = string (interchange_dir_name) + G_DIR_SEPARATOR;
 		bool in_another_session = true;
 		
-		if (base.find (interchange_dir_string) != string::npos) {
+		if (filepath.find (interchange_dir_string) != string::npos) {
 		
-			session_path = Glib::path_get_dirname (base); /* now ends in audiofiles */
+			session_path = Glib::path_get_dirname (filepath); /* now ends in audiofiles */
 			session_path = Glib::path_get_dirname (session_path); /* now ends in session name */
 			session_path = Glib::path_get_dirname (session_path); /* now ends in interchange */
 			session_path = Glib::path_get_dirname (session_path); /* now has session path */
@@ -4394,12 +4397,32 @@ Session::peak_path (const string& base) const
 
 		if (in_another_session) {
 			SessionDirectory sd (session_path);
-			return Glib::build_filename (sd.peak_path(), Glib::path_get_basename (base) + peakfile_suffix);
+			return Glib::build_filename (sd.peak_path(), Glib::path_get_basename (filepath) + peakfile_suffix);
 		}
 	}
 
-	std::string basename = Glib::path_get_basename (base);
+	std::string filename = Glib::path_get_basename (filepath);
-	return Glib::build_filename (_session_dir->peak_path(), basename + peakfile_suffix);
+	std::string path;
+	/* file is within our session: just use the filename for checksumming and leave path empty */
+
+	if (filepath.find (interchange_dir_string) == string::npos) {
+		/* the file is outside our session: add the filepath for checksummming */
+		path = Glib::path_get_dirname (filepath);
+	}
+	
+	string::size_type suffix = filename.find_last_of ('.');
+
+	std::string filename_unsuffixed;
+	if (suffix != string::npos) {
+		filename_unsuffixed = filename.substr (0, suffix);
+	} else {
+		warning << string_compose (_("Odd audio file path: %1"), filepath) << endmsg;
+		filename_unsuffixed = filename;
+	}
+
+	std::string checksum = "_" + Glib::Checksum::compute_checksum(Glib::Checksum::CHECKSUM_MD5, path + G_DIR_SEPARATOR + filename);
+
+	return Glib::build_filename (_session_dir->peak_path(), filename_unsuffixed + checksum + peakfile_suffix);
 }
 
 string

libs/ardour/session_state.cc

@@ -3052,7 +3052,7 @@ Session::cleanup_sources (CleanupReport& rep)
                                  or for the first channel of embedded files. it will miss
                                  some peakfiles for other channels
                               */
-		string peakpath = peak_path (base);
+		string peakpath = construct_peak_filepath (base);
 
 		if (Glib::file_test (peakpath.c_str(), Glib::FILE_TEST_EXISTS)) {
 			if (::g_unlink (peakpath.c_str()) != 0) {