move display of silence for strip-silence into regionviews, along with text to describe impact on the region. this doesn't actually make strip-silence work any better, but the display is improving

git-svn-id: svn://localhost/ardour2/branches/3.0@8224 d708f5d6-7413-0410-9779-e7cbd77b26cf

3 files changed, 8 insertions, 5 deletions

diff --git a/libs/ardour/ardour/audioregion.h b/libs/ardour/ardour/audioregion.h
index a5791c8b30..80a725f771 100644
--- a/libs/ardour/ardour/audioregion.h
+++ b/libs/ardour/ardour/audioregion.h
@@ -176,7 +176,7 @@ class AudioRegion : public Region
 	int update_transient (framepos_t old_position, framepos_t new_position);
 	int adjust_transients (framepos_t delta);
 
-	std::list<std::pair<frameoffset_t, framecnt_t> > find_silence (Sample, framecnt_t, InterThreadInfo&) const;
+	AudioIntervalResult find_silence (Sample, framecnt_t, InterThreadInfo&) const;
 
   private:
 	friend class RegionFactory;
diff --git a/libs/ardour/ardour/types.h b/libs/ardour/ardour/types.h
index 1f16ce6313..cae2d5bcf7 100644
--- a/libs/ardour/ardour/types.h
+++ b/libs/ardour/ardour/types.h
@@ -72,6 +72,9 @@ namespace ARDOUR {
         static const framepos_t max_framepos = INT64_MAX;
         static const framecnt_t max_framecnt = INT64_MAX;
 
+        // a set of (time) intervals: first of pair is the offset within the region, second is the length of the interval
+        typedef std::list<std::pair<frameoffset_t,framecnt_t> > AudioIntervalResult;
+
 	struct IOChange {
 
 		enum Type {
diff --git a/libs/ardour/audioregion.cc b/libs/ardour/audioregion.cc
index f3ae05f1b1..84709d7bb2 100644
--- a/libs/ardour/audioregion.cc
+++ b/libs/ardour/audioregion.cc
@@ -1498,10 +1498,10 @@ in this and future transient-detection operations.\n\
  *
  *  @param threshold Threshold below which signal is considered silence (as a sample value)
  *  @param min_length Minimum length of silent period to be reported.
- *  @return Silent periods; first of pair is the offset within the region, second is the length of the period
+ *  @return Silent intervals
  */
 
-std::list<std::pair<frameoffset_t, framecnt_t> >
+AudioIntervalResult
 AudioRegion::find_silence (Sample threshold, framecnt_t min_length, InterThreadInfo& itt) const
 {
 	framecnt_t const block_size = 64 * 1024;
@@ -1510,8 +1510,8 @@ AudioRegion::find_silence (Sample threshold, framecnt_t min_length, InterThreadI
 
 	framepos_t pos = _start;
 	framepos_t const end = _start + _length - 1;
-
-	std::list<std::pair<frameoffset_t, framecnt_t> > silent_periods;
+        
+	AudioIntervalResult silent_periods;
 
 	bool in_silence = false;
 	frameoffset_t silence_start = 0;