include video framerate in output png filenames

mkjones · Apr 27, 2015 · bd82193 · bd82193
1 parent e6d9b1f
commit bd82193
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Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/SlitProcessor.py b/SlitProcessor.py
@@ -51,5 +51,12 @@ def getImageFilename(self):
         filename_parts = filename.split('/')
         name = filename_parts[-1]
         name = name.split('.')[0]
-        return '%s/%s-%d-%03d.png' % ('/'.join(filename_parts[0:-1]), name,
-                                      self.numRows, self.slitPosition)
+
+
+        return '%s/%s-%dfps-%d-%03d.png' % (
+            '/'.join(filename_parts[0:-1]),
+            name,
+            self.video.getFramerate(),
+            self.numRows,
+            self.slitPosition
+        )
diff --git a/Video.py b/Video.py
@@ -47,6 +47,7 @@ class VideoReader:
     numFrames = None
     width = None
     height = None
+    framerate = None
 
     def __init__(self, filename):
         self.filename = filename
@@ -70,6 +71,11 @@ def getHeight(self):
             self._populateMetadata()
         return self.height
 
+    def getFramerate(self):
+        if self.framerate is None:
+            self._populateMetadata()
+        return self.framerate
+
     def _populateMetadata(self):
         info_args = ('ffmpeg', '-i', self.filename, '-vcodec', 'copy',
                      '-f', 'rawvideo', '-y', '/dev/null')
@@ -85,6 +91,9 @@ def _populateMetadata(self):
         self.width = int(matches.group(1))
         self.height = int(matches.group(2))
 
+        matches = re.search(' ([\d\.]+) fps[,$]', stderr)
+        self.framerate = int(round(float(matches.group(1))))
+
     def getFrames(self):
         args = [
             "ffmpeg",