create_test_videofont.py: generate the PNG rest sample

diff --git a/create_test_videofont.py b/create_test_videofont.py
index acde8ab..92f17b5 100755 (executable)
--- a/create_test_videofont.py
+++ b/create_test_videofont.py
@@ -35,6 +35,12 @@ FILE_PIPELINE_TEMPLATE = """
 """ % (VIDEO_BUFFERS, VIDEO_FRAMERATE, FONT_DESC, AUDIO_BUFFERS,
        AUDIO_SAMPLESPERBUFFER, AUDIO_SAMPLERATE)
 
+PNG_REST_SAMPLE_TEMPLATE = """
+  videotestsrc num-buffers=1 pattern=black ! \
+          textoverlay valignment=center halignment=center font-desc="%s" text="rest" ! \
+          pngenc ! filesink location="{0}/sample_rest.png"
+""" % FONT_DESC
+
 
 def create_test_videofont(pipeline_template, notes_range, destination_dir=None):
     print("Silence")
@@ -77,6 +83,10 @@ def main():
         os.mkdir(destination_dir)
         create_test_videofont(FILE_PIPELINE_TEMPLATE, notes_range,
                               destination_dir)
+
+        pipeline_string = PNG_REST_SAMPLE_TEMPLATE.format(destination_dir)
+        player = vidi.Player.from_pipeline_string(pipeline_string)
+        player.play()
     else:
         create_test_videofont(LIVE_PIPELINE_TEMPLATE, notes_range)