Does anyone here have a wxPython code that converts a folder of images to a .wmv file just by clicking a button?
What I did in my program was I load an Image-to-Video Converter Software by clicking a button but I feel that it would be better if I can directly convert the images to a video just by clicking the button.
Hope someone can help me out here. Thanks so much.
-Karen
Interesting concept. Two potential problems:
(1) What if the images are not all the same size?
(2) How does the code decide what framerate to use?
Jeff
Hi Jeff,
In the Image-to-Video software that I am using, the size of the images does not matter and the frame rate is set by the user. So I was thinking, I can just set the frame rate to be fixed say 5 frames/sec so when the button is clicked, it will automatically convert the images to video. However, I can also add that feature to my GUI such that when the button is clicked, it will ask for the desired frame rate first before actually converting. But I guess that will make things more complicated because to begin with, I have no idea how the conversion code should look like. :(
-Karen
The last PyMedia release I saw was for Python24:
http://downloads.sourceforge.net/pymedia/pymedia-1.3.5.0-pre2.win32-py2.4.exe?use_mirror=voxel
However, it is possible to create a video with it from within a Python program. Here is an example called make_video.py they list at
http://downloads.sourceforge.net/pymedia/pymedia-examples-1.3.7.zip?use_mirror=internap
...
#! /bin/env python
import sys, os, time
import pymedia.video.vcodec as vcodec
import pygame
def makeVideo( inPattern, outFile, outCodec ):
# Get video stream dimensions from the image size
pygame.init()
i= 1
# Opening mpeg file for output
e= None
i= 1
fw= open( outFile, 'wb' )
while i:
if os.path.isfile( inPattern % i ):
s= pygame.image.load( inPattern % i )
if not e:
if outCodec== 'mpeg1video':
bitrate= 2700000
else:
bitrate= 9800000
params= { \
'type': 0,
'gop_size': 12,
'frame_rate_base': 125,
'max_b_frames': 0,
'height': s.get_height(),
'width': s.get_width(),
'frame_rate': 2997,
'deinterlace': 0,
'bitrate': bitrate,
'id': vcodec.getCodecID( outCodec )
}
print 'Setting codec to ', params
e= vcodec.Encoder( params )
t= time.time()
# Create VFrame
ss= pygame.image.tostring(s, "RGB")
bmpFrame= vcodec.VFrame( vcodec.formats.PIX_FMT_RGB24, s.get_size(), (ss,None,None))
yuvFrame= bmpFrame.convert( vcodec.formats.PIX_FMT_YUV420P )
d= e.encode( yuvFrame )
fw.write( d.data )
i+= 1
else:
print '%d frames written in %.2f secs( %.2f fps )' % ( i, time.time()- t, float( i )/ ( time.time()- t ) )
i= 0
fw.close()
pygame.quit()
if __name__== '__main__':
if len( sys.argv )!= 4:
print "Usage: make_video <in_file_pattern> <out_file> <format>\n\tformat= { mpeg1video | mpeg2video }"
else:
makeVideo( sys.argv[ 1 ], sys.argv[ 2 ], sys.argv[ 3 ] )I tried running make_video.py by including it in my main code but I can't seem to make it work. Here's the code. The error says that not all arguments converted during string formatting at this line:
if os.path.isfile( inPattern % i ):
Can someone please help me? Can this program convert .jpg images to a video assuming that all images have the same size and the fps is set to be 0.5 ?
Thank you so much.
self.Bind(wx.EVT_BUTTON, self.makeVideo, self.ConverterButton)
def makeVideo(self, evt):
outFile = 'C:/Documents and Settings/12345/Desktop/nyeh.mpg'
inPattern = 'C:/Documents and Settings/12345/My Documents/Files/ACADEMICS/ECE 198/GUI/cam_pics'
outCodec = 'mpeg1video'
# Get video stream dimensions from the image size
pygame.init()
i= 1
# Opening mpeg file for output
e= None
i= 1
fw= open( outFile, 'wb' )
while i:
if os.path.isfile( inPattern % i ):
s= pygame.image.load( inPattern % i )
if not e:
if outCodec== 'mpeg1video':
bitrate= 2700000
else:
bitrate= 9800000
params= { \
'type': 0,
'gop_size': 12,
'frame_rate_base': 10,
'max_b_frames': 0,
'height': s.get_height(),
'width': s.get_width(),
'frame_rate': 2997,
'deinterlace': 0,
'bitrate': bitrate,
'id': vcodec.getCodecID( outCodec )
}
print 'Setting codec to ', params
e= vcodec.Encoder( params )
t= time.time()
# Create VFrame
ss= pygame.image.tostring(s, "RGB")
bmpFrame= vcodec.VFrame( vcodec.formats.PIX_FMT_RGB24, s.get_size(), (ss,None,None))
yuvFrame= bmpFrame.convert( vcodec.formats.PIX_FMT_YUV420P )
d= e.encode( yuvFrame )
fw.write( d.data )
i+= 1
else:
print '%d frames written in %.2f secs( %.2f fps )' % ( i, time.time()- t, float( i )/ ( time.time()- t ) )
i= 0
fw.close()
pygame.quit()
Karen,
Please use code tags when posting code, or else it will become unreadable as it has above.
To use the code tags, wrap your code like this:
[code=python] # Code inside here
[/code]
This will turn on syntax highlighting and preserve your indentation. Also, forum members are much more inclined to help you if your post isn't a huge mess of plain text.
Thanks Jim. Here it is. I am not sure if I correctly set inPattern and outFile that's why the code isn't working. Hope someone can help me. Thanks.
self.Bind(wx.EVT_BUTTON, self.makeVideo, self.ConverterButton)
def makeVideo(self, evt): #make_video.py
outFile = 'C:/Documents and Settings/12345/Desktop/nyeh.mpg'
inPattern = 'C:/Documents and Settings/12345/My Documents/Files/ACADEMICS/ECE 198/GUI/cam_pics'
outCodec = 'mpeg1video'
# Get video stream dimensions from the image size
pygame.init()
i= 1
# Opening mpeg file for output
e= None
i= 1
fw= open( outFile, 'wb' )
while i:
if os.path.isfile( inPattern % i ):
s= pygame.image.load( inPattern % i )
if not e:
if outCodec== 'mpeg1video':
bitrate= 2700000
else:
bitrate= 9800000
params= { \
'type': 0,
'gop_size': 12,
'frame_rate_base': 10,
'max_b_frames': 0,
'height': s.get_height(),
'width': s.get_width(),
'frame_rate': 2997,
'deinterlace': 0,
'bitrate': bitrate,
'id': vcodec.getCodecID( outCodec )
}
print 'Setting codec to ', params
e= vcodec.Encoder( params )
t= time.time()
# Create VFrame
ss= pygame.image.tostring(s, "RGB")
bmpFrame= vcodec.VFrame( vcodec.formats.PIX_FMT_RGB24, s.get_size(), (ss,None,None))
yuvFrame= bmpFrame.convert( vcodec.formats.PIX_FMT_YUV420P )
d= e.encode( yuvFrame )
fw.write( d.data )
i+= 1
else:
print '%d frames written in %.2f secs( %.2f fps )' % ( i, time.time()- t, float( i )/ ( time.time()- t ) )
i= 0
fw.close()
pygame.quit()Thanks Jim. Here it is. I am not sure if I correctly set inPattern and outFile that's why the code isn't working. Hope someone can help me. And can make_video.py convert a folder of .jpg images to a .mpg video file?
self.Bind(wx.EVT_BUTTON, self.makeVideo, self.ConverterButton)
def makeVideo(self, evt): #make_video.py
outFile = 'C:/Documents and Settings/12345/Desktop/nyeh.mpg'
inPattern = 'C:/Documents and Settings/12345/My Documents/Files/ACADEMICS/ECE 198/GUI/cam_pics'
outCodec = 'mpeg1video'
# Get video stream dimensions from the image size
pygame.init()
i= 1
# Opening mpeg file for output
e= None
i= 1
fw= open( outFile, 'wb' )
while i:
if os.path.isfile( inPattern % i ):
s= pygame.image.load( inPattern % i )
if not e:
if outCodec == 'mpeg1video':
bitrate= 2700000
else:
bitrate= 9800000
params= { \
'type': 0,
'gop_size': 12,
'frame_rate_base': 10,
'max_b_frames': 0,
'height': s.get_height(),
'width': s.get_width(),
'frame_rate': 2997,
'deinterlace': 0,
'bitrate': bitrate,
'id': vcodec.getCodecID( outCodec )
}
print 'Setting codec to ', params
e= vcodec.Encoder( params )
t= time.time()
# Create VFrame
ss= pygame.image.tostring(s, "RGB")
bmpFrame= vcodec.VFrame(vcodec.formats.PIX_FMT_RGB24, s.get_size(), (ss,None,None))
yuvFrame= bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P)
d= e.encode( yuvFrame )
fw.write( d.data )
i+= 1
else:
print '%d frames written in %.2f secs( %.2f fps )' % (i,time.time()- t, float( i )/(time.time()- t))
i= 0
fw.close()
pygame.quit()
Running PyGame from within wxPython will create a conflict, since each use their own event loops, and the event queue will now contain events that won't match.
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