Evan Hisey wrote:
> Duncan-
> a little more digging in my thumbnail problem. If i run the mplayer
> command that creates a thmbnail (I dug it out of the videothumb.py) :
mplayer -nosound -vo png -frames 8 -ss 360 -zoom
> /mnt/freevo/06-15_20_00_Stargate_Atlantis_-_Vengeance.mpeg , mplayer
happily produces the 8 video png files.
> From what I see in the logs versus what I think the videothumb.py
> should be printing based on the if statements, it looks like freevo is
just skipping a step. I think I should be getting either an 'unable to
write file' message or a "error creating capture for %s" %
> Unicode(filename) message
Attached is a version of videothumb with more debugging information in.
/usr/lib/python2.4/site-packages/freevo/util/videothumb.py
(your install path may vary)
Run it with:
freevo prompt
import util.videothumb as v
v.snapshot('/freevo/tv/20061014_2250_Musicnight:_U2_-_Zoo-TV_-_Live_from_Sydney_1993.mpeg')
and check the log that is output. With my config I get a
/var/log/freevo/videothumb-0.log
Duncan
# -*- coding: iso-8859-1 -*-
# -----------------------------------------------------------------------
# videothumb - create a thumbnail for video files
# -----------------------------------------------------------------------
# $Id: videothumb.py 9875 2007-09-13 17:44:31Z duncan $
#
# Notes: This is a bad hack. It creates a new process to make the
# images with mplayer and than copy it to the location
#
# Based on videothumb.py commited to the freevo wiki
#
# Todo:
#
# -----------------------------------------------------------------------
# Freevo - A Home Theater PC framework
# Copyright (C) 2002 Krister Lagerstrom, et al.
# Please see the file freevo/Docs/CREDITS for a complete list of authors.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MER-
# CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# -----------------------------------------------------------------------
import sys, os, glob, shutil
from stat import *
import kaa.metadata as mmpython
import config
def snapshot(videofile, imagefile=None, pos=None, update=True, popup=None):
"""
make a snapshot of the videofile at position pos to imagefile
"""
import popen3
import kaa.imlib2 as Image
import util
import vfs
import gui.PopupBox
import osd
if not imagefile:
imagefile = vfs.getoverlay(videofile + '.raw')
if not update and os.path.isfile(imagefile) and \
os.stat(videofile)[ST_MTIME] <= os.stat(imagefile)[ST_MTIME]:
return
if imagefile.endswith('.raw'):
imagefile += '.tmp'
if popup:
pop = gui.PopupBox(text='Creating thumbnail for \'%s\'...' % \
Unicode(os.path.basename(videofile)),
width=osd.get_singleton().width-(config.OSD_OVERSCAN_LEFT+config.OSD_OVERSCAN_RIGHT)-80)
pop.show()
args = [ config.MPLAYER_CMD, videofile, imagefile ]
if pos != None:
args.append(str(pos))
_debug_("%r" % ([os.environ['FREEVO_SCRIPT'], 'execute', os.path.abspath(__file__) ] + args))
out = popen3.stdout([os.environ['FREEVO_SCRIPT'], 'execute', os.path.abspath(__file__) ] + args)
if out:
for line in out:
print line
if vfs.isfile(imagefile):
try:
image = Image.open(imagefile)
if image.width > 255 or image.height > 255:
image.thumbnail((255,255))
if image.mode == 'P':
image.mode = 'RGB'
if image.width * 3 > image.height * 4:
# fix image with blank bars to be 4:3
nh = (image.width*3)/4
ni = Image.new((image.width, nh), from_format = image.mode)
ni.draw_rectangle((0,0), (image.width, nh), (0,0,0,255), True)
ni.blend(image, dst_pos=(0,(nh- image.height) / 2))
image = ni
elif image.width * 3 < image.height * 4:
# strange aspect, let's guess it's 4:3
new_size = (image.width, (image.width*3)/4)
image = image.scale((new_size))
# crop some pixels, looks better that way
image = image.crop((4, 3), (image.width-8, image.height-6))
# Pygame can't handle BGRA images
if image.mode == 'BGRA':
image.mode = 'RGBA'
if imagefile.endswith('.raw.tmp'):
f = vfs.open(imagefile[:-4], 'w')
data = (str(image.get_raw_data(format=image.mode)), image.size, image.mode)
f.write('FRI%s%s%5s' % (chr(image.width), chr(image.height), image.mode))
f.write(data[0])
f.close()
os.unlink(imagefile)
else:
image.save(imagefile)
except (OSError, IOError), e:
print 'snapshot:', e
else:
print 'no imagefile found'
print imagefile
if popup:
pop.destroy()
#
# main function, will be called when this file is executed, not imported
# args: mplayer, videofile, imagefile, [ pos ]
#
if __name__ == "__main__":
import popen2
mplayer = os.path.abspath(sys.argv[1])
filename = os.path.abspath(sys.argv[2])
imagefile = os.path.abspath(sys.argv[3])
try:
position = sys.argv[4]
except IndexError:
try:
mminfo = mmpython.parse(filename)
position = str(int(mminfo.video[0].length / 2.0))
if hasattr(mminfo, 'type'):
if mminfo.type in ('MPEG-TS', 'MPEG-PES'):
position = str(int(mminfo.video[0].length / 20.0))
except:
# else arbitrary consider that file is 1Mbps and grab position at 10%
position = os.stat(filename)[ST_SIZE]/1024/1024/10.0
if position < 360:
position = '360'
else:
position = str(int(position))
# chdir to tmp so we have write access
os.chdir('/tmp')
# call mplayer to get the image
_debug_("%r" % ((mplayer, '-nosound', '-vo', 'png', '-frames', '8', '-ss', position, '-zoom', filename),))
child = popen2.Popen3((mplayer, '-nosound', '-vo', 'png', '-frames', '8',
'-ss', position, '-zoom', filename), 1, 100)
while(1):
data = child.fromchild.readline()
if not data:
break
child.wait()
child.fromchild.close()
child.childerr.close()
child.tochild.close()
# store the correct thumbnail
captures = glob.glob('000000??.png')
_debug_("%r" % (captures,))
if captures:
capture = captures[-1]
try:
shutil.copy(capture, imagefile)
_debug_("copied %r to %r" % (capture, imagefile))
except:
try:
import config
import vfs
shutil.copy(capture, vfs.getoverlay(imagefile[1:]))
_debug_("copied %r to %r" % (capture, vfs.getoverlay(imagefile[1:])))
except:
print 'unable to write file %s' % Unicode(filename)
else:
print "error creating capture for %s" % Unicode(filename)
for capture in captures:
try:
os.remove(capture)
except:
print "error removing temporary captures for %s" % Unicode(filename)-------------------------------------------------------------------------
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