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Image to Video Converter Code Snippet

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karenmaye

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Image to Video Converter Code Snippet

Feb 27th, 2009

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

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jrcagle

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Re: Image to Video Converter Code Snippet

Feb 27th, 2009

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

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karenmaye

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Re: Image to Video Converter Code Snippet

Feb 27th, 2009

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

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Re: Image to Video Converter Code Snippet

Mar 2nd, 2009

The last PyMedia release I saw was for Python24:
http://downloads.sourceforge.net/pym...e_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/pym...irror=internap
...

 Help with Code Tags 
 python Syntax (Toggle Plain Text) 
#! /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 ] )
#! /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 ] )

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milkyway462 milkyway462 is offline

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Re: Image to Video Converter Code Snippet

Mar 5th, 2009

I've tried many Video Converter download from internet and choose the best to share here, Daniusoft Video Converter which could help you convert convert video format to MPEG/WMV/AVI and other popular video formats such as: MP4, FLV, 3GP, ASF, MOV, M4V, MPG, VOB, XviD with high speed and excellent quality. Also let you set the movie effects.

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karenmaye

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Re: Image to Video Converter Code Snippet

Mar 19th, 2009

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()

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Re: Image to Video Converter Code Snippet

Mar 19th, 2009

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.

Last edited by jlm699; Mar 19th, 2009 at 9:14 am.

1. Use Code Tags.
2. Homework? Show Effort.
3. Keep discussions on the forum: no PMs

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karenmaye

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Re: Image to Video Converter Code Snippet

Mar 19th, 2009

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.

 Help with Code Tags 
 python Syntax (Toggle Plain Text) 
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()
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()

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karenmaye

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Re: Image to Video Converter Code Snippet

Mar 19th, 2009

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?

 Help with Code Tags 
 python Syntax (Toggle Plain Text) 
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()
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()

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Re: Image to Video Converter Code Snippet

#10

Mar 19th, 2009

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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