- Handle the img and MediaFormat modules not being available (by not

providing the format info, only the raw data).
- Get rid of fsspecs.
- Make the demo program at least do something if img not available.
This commit is contained in:
Jack Jansen 2003-02-04 15:36:42 +00:00
parent b9fa1a9ec5
commit 57ba55b77d

View File

@ -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__':