X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fsndfilesource.h;h=916e9da49ec15f6b5d4ed7c8cecd705180b4dc90;hb=6698f5f686bef82b0c9568558c83a3b9b3344700;hp=37167e6a9af5bc6067eca07fda398d94b33a7ad0;hpb=1e05b4389dab5912fb4178d489aa9eef639d823c;p=ardour.git

diff --git a/libs/ardour/ardour/sndfilesource.h b/libs/ardour/ardour/sndfilesource.h
index 37167e6a9a..916e9da49e 100644
--- a/libs/ardour/ardour/sndfilesource.h
+++ b/libs/ardour/ardour/sndfilesource.h
@@ -15,7 +15,6 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #ifndef __sndfile_source_h__ 
@@ -23,32 +22,92 @@
 
 #include <sndfile.h>
 
-#include <ardour/externalsource.h>
+#include <ardour/audiofilesource.h>
 
 namespace ARDOUR {
 
-class SndFileSource : public ExternalSource {
+class SndFileSource : public AudioFileSource {
   public:
-	SndFileSource (const string& path_plus_channel, bool build_peak = true);
-	SndFileSource (const XMLNode&);
+	/* constructor to be called for existing external-to-session files */
+
+        SndFileSource (Session&, Glib::ustring path, int chn, Flag flags);
+
+	/* constructor to be called for new in-session files */
+
+	SndFileSource (Session&, Glib::ustring path, SampleFormat samp_format, HeaderFormat hdr_format, nframes_t rate, 
+		       Flag flags = SndFileSource::default_writable_flags);
+		       
+	/* constructor to be called for existing in-session files */
+	
+	SndFileSource (Session&, const XMLNode&);
+
 	~SndFileSource ();
 
-    jack_nframes_t length() const { return _info.frames; } 
+	float sample_rate () const;
+	int update_header (nframes_t when, struct tm&, time_t);
+	int flush_header ();
+
+	nframes_t natural_position () const;
+
+	nframes_t last_capture_start_frame() const;
+	void mark_capture_start (nframes_t);
+	void mark_capture_end ();
+	void clear_capture_marks();
+
+	bool set_destructive (bool yn);
+
+	bool one_of_several_channels () const;
+
+	static void setup_standard_crossfades (nframes_t sample_rate);
+	static const AudioFileSource::Flag default_writable_flags;
 
-	jack_nframes_t read (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const;
+	static int get_soundfile_info (const Glib::ustring& path, SoundFileInfo& _info, string& error_msg);
+
+  protected:
+	void set_header_timeline_position ();
+
+	nframes_t read_unlocked (Sample *dst, nframes_t start, nframes_t cnt) const;
+	nframes_t write_unlocked (Sample *dst, nframes_t cnt);
+
+	nframes_t write_float (Sample* data, nframes_t pos, nframes_t cnt);
 
   private:
 	SNDFILE *sf;
 	SF_INFO _info;
+	SF_BROADCAST_INFO *_broadcast_info;
+
+	mutable float *interleave_buf;
+	mutable nframes_t interleave_bufsize;
+
+	void init ();
+	int open();
+	void close();
+	int setup_broadcast_info (nframes_t when, struct tm&, time_t);
+
+	/* destructive */
+
+	static nframes_t xfade_frames;
+	static gain_t* out_coefficient;
+	static gain_t* in_coefficient;
+
+	bool          _capture_start;
+	bool          _capture_end;
+	nframes_t      capture_start_frame;
+	nframes_t      file_pos; // unit is frames
+	nframes_t      xfade_out_count;
+	nframes_t      xfade_in_count;
+	Sample*        xfade_buf;
 
-	mutable float *tmpbuf;
-	mutable jack_nframes_t tmpbufsize;
-	mutable PBD::Lock _tmpbuf_lock;
+	nframes_t crossfade (Sample* data, nframes_t cnt, int dir);
+	void set_timeline_position (int64_t);
+	nframes_t destructive_write_unlocked (Sample *dst, nframes_t cnt);
+	nframes_t nondestructive_write_unlocked (Sample *dst, nframes_t cnt);
+	void handle_header_position_change ();
 
-	void init (const string &str, bool build_peak);
+	static int64_t get_timecode_info (SNDFILE* sf, SF_BROADCAST_INFO* binfo, bool& exists);
 };
 
-}; /* namespace ARDOUR */
+} // namespace ARDOUR
 
 #endif /* __sndfile_source_h__ */