light9 Changeset - 748ecc2d1f2a

Changeset - 748ecc2d1f2a

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drewp@bigasterisk.com - 6 years ago 2019-06-04 17:19:12
drewp@bigasterisk.com

vidref fix state machine for writing files
Ignore-this: 7f14601f09e4993c99d04a92361a84a6

1 file changed with 14 insertions and 5 deletions:

light9/vidref/videorecorder.py

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light9/vidref/videorecorder.py

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@@ @@ -87,18 +87,21 @@ class FramesToVideoFiles: @@
         receive frames (infinite) and wall-to-song times (stream ends with
         the song), and write a video file and a frame map
         """
         return threads.deferToThread(self._bg_save, outBase)
     def _bg_save(self, outBase):
         os.makedirs(os.path.dirname(outBase), exist_ok=True)
         self.frameMap = open(outBase + '.timing', 'wt')
         # (immediately calls make_frame)
         self.currentOutputClip = moviepy.editor.VideoClip(
             self._bg_make_frame, duration=999.)
         self.currentOutputClip.fps = 5
         self.currentOutputClip = moviepy.editor.VideoClip(self._bg_make_frame,
                                                           duration=999.)
         # The fps recorded in the file doesn't matter much; we'll play
         # it back in sync with the music regardless.
         self.currentOutputClip.fps = 10
         log.info(f'write_videofile {outBase} start')
         try:
             self.currentOutputClip.write_videofile(outBase + '.mp4',
                                                    audio=False,
                                                    preset='ultrafast',
                                                    logger=None,
@@ @@ -108,15 +111,21 @@ class FramesToVideoFiles: @@
         log.info('write_videofile done')
         self.currentOutputClip = None
     def _bg_make_frame(self, video_time_secs):
         if self.nextWriteAction == 'close':
             raise StopIteration # the one in write_videofile
             raise StopIteration  # the one in write_videofile
         elif self.nextWriteAction == 'notWritingClip':
             raise NotImplementedError
         elif self.nextWriteAction == 'saveFrames':
             pass
         else:
             raise NotImplementedError(self.nextWriteAction)
         # should be a queue to miss fewer frames
+        # should be a little queue to miss fewer frames
         while self.nextImg is None:
             time.sleep(.03)
         cf, self.nextImg = self.nextImg, None
         self.frameMap.write(f'video {video_time_secs:g} = song {cf.t:g}\n')
         return numpy.asarray(cf.img)

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