def prepframe(frame, enlargex=1):
"""Takes raw luminance data frame and converts it to RGB yuvFrame suitable for encoding with pymedia"""
height, width = np.asarray(frame.shape) * enlargex
frame = frame.T
frame = enlarge(frame, enlargex)
frame = np.asarray([frame, frame, frame]).T
bmpFrame = vcodec.VFrame(vcodec.formats.PIX_FMT_RGB24, (width, height),
(frame.tostring(), None, None))
yuvFrame = bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P)
return yuvFrame
def makeMPEG(filename,
images,
codec='mpeg1video',
codecParams=None,
verbose=False):
if not havePyMedia:
logging.error('pymedia (www.pymedia.org) needed to make mpeg movies')
return 0
fw = open(filename, 'wb')
t = time.time()
# set bitrate
if codec == 'mpeg1video':
bitrate = 2700000
else:
bitrate = 9800000
# set other params (or receive params dictionary)
if codecParams is None:
codecParams = {
'type': 0,
'gop_size': 12,
'frame_rate_base': 125,
'max_b_frames': 0,
'width': images[0].size[0],
'height': images[0].size[1],
'frame_rate': 3125,
'deinterlace': 0,
'bitrate': bitrate,
'id': vcodec.getCodecID(codec)
}
logging.info('Setting codec to ' + str(codecParams))
encoder = vcodec.Encoder(codecParams)
for im in images:
# Create VFrame
imStr = im.tostring()
bmpFrame = vcodec.VFrame(vcodec.formats.PIX_FMT_RGB24, im.size,
(imStr, None, None))
yuvFrame = bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P, im.size)
d = encoder.encode(yuvFrame)
try:
fw.write(d.data) # this is what works!
except Exception:
fw.write(d) # this is what pymedia demo recommends
else:
logging.info('%d frames written in %.2f secs' %
(len(images), time.time() - t))
i = 0
fw.close()
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
if inPattern.index( '.bmp' )> 0:
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()
def next_frame(self):
if self.debug:
print >> stderr, 'prepare_image:', (self.screen.out_width,
self.screen.out_height)
img = self.screen.prepare_image(self.cursor_image, self.cursor_offset,
self.cursor_pos)
strFrame = convert_image_to_string_rgb(img)
bmpFrame = vcodec.VFrame(
vcodec.formats.PIX_FMT_RGB24,
(self.screen.out_width, self.screen.out_height),
(strFrame, None, None))
yuvFrame = bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P)
encFrame = self.encoder.encode(yuvFrame)
self.out_file.write(encFrame.data)
MovieOutputStream.next_frame(self)
return
def doFrameDump(self):
if self.dumpEncoder:
import pymedia.video.vcodec as vcodec
ss = pygame.image.tostring(manager.surface, "RGB")
bmpFrame = vcodec.VFrame(vcodec.formats.PIX_FMT_RGB24,
manager.surface.get_size(),
(ss, None, None))
yuvFrame = bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P)
d = self.dumpEncoder.encode(yuvFrame)
self.dumpFile.write(d.data)
return
if self.dumpAppend:
filename = self.dumpFilename
else:
filename = self.dumpFilename % self.PlayFrame
print(filename)
if self.dumpPPM:
# Dump a PPM file. We do PPM by hand since pygame
# doesn't support it directly, but it's so easy and
# useful.
w, h = manager.surface.get_size()
if self.dumpAppend:
f = open(filename, 'ab')
else:
f = open(filename, 'wb')
f.write('P6\n%s %s 255\n' % (w, h))
f.write(pygame.image.tostring(manager.surface, 'RGB'))
else:
# Ask pygame to dump the file. We trust that pygame knows
# how to store an image in the requested format.
pygame.image.save(manager.surface, filename)
print 'hello'
f.write(header)
# write mp3 to disk
#f.write(mp3data)
s = mux.write(astreamid, mp3data) # returns a stream
f.write(s) # the stream can then be written to disk
#s = mux.write(astreamid, encodedframe) # returns a stream
#f.write(s) # the stream can then be written to disk
for frame in m.data:
frame = frame.T
frame = enlarge(frame, enlargex)
frame = np.asarray([frame, frame, frame]).T
bmpFrame = vcodec.VFrame(vcodec.formats.PIX_FMT_RGB24, (width, height),
(frame.tostring(), None, None))
yuvFrame = bmpFrame.convert(vcodec.formats.PIX_FMT_YUV420P)
encodedframe = ve.encode(yuvFrame)
s = mux.write(vstreamid, encodedframe) # returns a stream
f.write(s) # the stream can then be written to disk
#f.write(d.data)
f.close()
#create muxer
#mux = muxer.Muxer( 'avi' ) # or mpg or something
#s1= vc1.encode( vfr )
#m_data.append( ( v_id1, s1 ))
