diff options
| -rw-r--r-- | Lib/plat-mac/videoreader.py | 64 |
1 files changed, 40 insertions, 24 deletions
diff --git a/Lib/plat-mac/videoreader.py b/Lib/plat-mac/videoreader.py index 7b776f2..6153287 100644 --- a/Lib/plat-mac/videoreader.py +++ b/Lib/plat-mac/videoreader.py @@ -12,11 +12,20 @@ from Carbon import Qd from Carbon import Qdoffs from Carbon import QDOffscreen from Carbon import Res -import MediaDescr -import imgformat +try: + import MediaDescr +except ImportError: + def _audiodescr(data): + return None +else: + def _audiodescr(data): + return MediaDescr.SoundDescription.decode(data) +try: + from imgformat import macrgb +except ImportError: + macrgb = "Macintosh RGB format" import os # import audio.format -import macfs class VideoFormat: def __init__(self, name, descr, width, height, format): @@ -40,8 +49,7 @@ class VideoFormat: class _Reader: def __init__(self, path): - fsspec = macfs.FSSpec(path) - fd = Qt.OpenMovieFile(fsspec, 0) + fd = Qt.OpenMovieFile(path, 0) self.movie, d1, d2 = Qt.NewMovieFromFile(fd, 0, 0) self.movietimescale = self.movie.GetMovieTimeScale() try: @@ -55,7 +63,7 @@ class _Reader: handle = Res.Handle('') n = self.audiomedia.GetMediaSampleDescriptionCount() self.audiomedia.GetMediaSampleDescription(1, handle) - self.audiodescr = MediaDescr.SoundDescription.decode(handle.data) + self.audiodescr = _audiodescr(handle.data) self.audiotimescale = self.audiomedia.GetMediaTimeScale() del handle @@ -139,6 +147,8 @@ class _Reader: return self._gettrackduration_ms(self.videotrack) def GetAudioFormat(self): + if not self.audiodescr: + return None, None, None, None, None bps = self.audiodescr['sampleSize'] nch = self.audiodescr['numChannels'] if nch == 1: @@ -167,12 +177,14 @@ class _Reader: return channels, encoding, blocksize, fpb, bps def GetAudioFrameRate(self): + if not self.audiodescr: + return None return int(self.audiodescr['sampleRate']) def GetVideoFormat(self): width = self.videodescr['width'] height = self.videodescr['height'] - return VideoFormat('dummy_format', 'Dummy Video Format', width, height, imgformat.macrgb) + return VideoFormat('dummy_format', 'Dummy Video Format', width, height, macrgb) def GetVideoFrameRate(self): tv = self.videocurtime @@ -236,18 +248,20 @@ def reader(url): return rdr def _test(): - import img + import EasyDialogs + try: + import img + except ImportError: + img = None import MacOS Qt.EnterMovies() - fss, ok = macfs.PromptGetFile('Video to convert') - if not ok: sys.exit(0) - path = fss.as_pathname() + path = EasyDialogs.AskFileForOpen(message='Video to convert') + if not path: sys.exit(0) rdr = reader(path) if not rdr: sys.exit(1) - dstfss, ok = macfs.StandardPutFile('Name for output folder') - if not ok: sys.exit(0) - dstdir = dstfss.as_pathname() + dstdir = EasyDialogs.AskFileForSave(message='Name for output folder') + if not dstdir: sys.exit(0) num = 0 os.mkdir(dstdir) videofmt = rdr.GetVideoFormat() @@ -258,16 +272,18 @@ def _test(): fname = 'frame%04.4d.jpg'%num num = num+1 pname = os.path.join(dstdir, fname) - print 'Writing', fname, imgw, imgh, len(data) - wrt = img.writer(imgfmt, pname) - wrt.width = imgw - wrt.height = imgh - wrt.write(data) - timestamp, data = rdr.ReadVideo() - MacOS.SetCreatorAndType(pname, 'ogle', 'JPEG') - if num > 20: - print 'stopping at 20 frames so your disk does not fill up:-)' - break + if not img: print 'Not', + print 'Writing %s, size %dx%d, %d bytes'%(fname, imgw, imgh, len(data)) + if img: + wrt = img.writer(imgfmt, pname) + wrt.width = imgw + wrt.height = imgh + wrt.write(data) + timestamp, data = rdr.ReadVideo() + MacOS.SetCreatorAndType(pname, 'ogle', 'JPEG') + if num > 20: + print 'stopping at 20 frames so your disk does not fill up:-)' + break print 'Total frames:', num if __name__ == '__main__': |