Version 1.1
Switched to encoding with ffmpeg 0.10 Script now runs on python 2 and python 3
This commit is contained in:
Stefan Brand
parent
34f323ee8c
commit
fb4e284b9b
3
README
3
README
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@ -6,8 +6,7 @@ PREQUISITES:
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The following components are needed:
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* mplayer
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* mencoder
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* MP4Box (from gpac package)
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* ffmpeg (tested with version 0.10, older versions may or may not work)
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* python
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USAGE:
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@ -4,7 +4,9 @@
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# n900-encode.py: Encode almost any Video to an Nokia N900-compatible format (h264,aac,mp4)
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# Disclaimer: This program is provided without any warranty, USE AT YOUR OWN RISK!
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#
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# (C) 2010-2011 Stefan Brand <seiichiro@seiichiro0185.org>
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# Version 1.1 (22.02.2012)
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#
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# (C) 2010-2012 Stefan Brand <seiichiro@seiichiro0185.org>
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#
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# This programm is licensed under the Terms of the GPL Version 3
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# See COPYING for more info.
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@ -32,14 +34,22 @@ _ffbin = None # ffmpeg binary, if set to None it is searched in your $PATH
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# Main Program, no changes needed below this line
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###########################################################################################
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# Global Variables
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mda = None
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mdv = None
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afifo = None
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vfifo = None
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# Main Function
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def main(argv):
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"""Main Function, cli argument processing and checking"""
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# CLI Argument Processing
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try:
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opts, args = getopt.getopt(argv, "i:o:m:v:a:t:hf", ["input=", "output=", "mpopts=", "abitrate=", "vbitrate=", "threads=", "help", "force-overwrite"])
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except getopt.GetoptError, err:
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print str(err)
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except getopt.GetoptError as err:
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printi(str(err))
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usage()
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input = None
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@ -75,7 +85,7 @@ def main(argv):
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else:
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mpbin = progpath("mplayer")
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if mpbin == None:
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print "Error: mplayer not found in PATH and no binary given, Aborting!"
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print("Error: mplayer not found in PATH and no binary given, Aborting!")
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sys.exit(1)
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global ffbin
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@ -85,19 +95,19 @@ def main(argv):
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else:
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ffbin = progpath("ffmpeg")
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if ffbin == None:
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print "Error: ffmpeg not found in PATH and no binary given, Aborting!"
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print( "Error: ffmpeg not found in PATH and no binary given, Aborting!")
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sys.exit(1)
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# Check input and output files
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if not os.path.isfile(input):
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print "Error: input file is not a valid File or doesn't exist"
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print("Error: input file is not a valid File or doesn't exist")
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sys.exit(2)
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if os.path.isfile(output):
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if overwrite:
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os.remove(output)
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else:
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print "Error: output file " + output + " already exists, force overwrite with -f"
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print("Error: output file " + output + " already exists, force overwrite with -f")
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sys.exit(1)
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# Start Processing
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@ -112,19 +122,19 @@ def calculate(input):
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# Get characteristics using mplayer
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cmd=[mpbin, "-ao", "null", "-vo", "null", "-frames", "0", "-identify", input]
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mp = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
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try:
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s = re.compile("^ID_VIDEO_ASPECT=(.*)$", re.M)
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m = s.search(mp[0])
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m = s.search(bytes.decode(mp[0]))
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orig_aspect = m.group(1)
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s = re.compile("^ID_VIDEO_WIDTH=(.*)$", re.M)
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m = s.search(mp[0])
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m = s.search(bytes.decode(mp[0]))
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orig_width = m.group(1)
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s = re.compile("^ID_VIDEO_HEIGHT=(.*)$", re.M)
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m = s.search(mp[0])
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m = s.search(bytes.decode(mp[0]))
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orig_height = m.group(1)
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except:
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print "Error: unable to identify source video, exiting!"
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print("Error: unable to identify source video, exiting!")
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sys.exit(2)
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# Calculate output resolution
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@ -187,13 +197,16 @@ def convert(input, output, res, abitrate, vbitrate, threads, mpopts):
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"-f", "yuv4mpegpipe",
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"-i", vfifo,
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"-i", afifo,
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"-acodec", "libfaac",
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"-acodec", "aac",
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"-strict", "experimental",
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"-ac", "2",
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"-ab", str(abitrate),
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"-ar", "22500",
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"-ar", "44100",
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"-vcodec", "libx264",
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"-threads", str(threads),
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"-b", str(vbitrate),
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"-vprofile", "baseline",
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"-tune", "animation",
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"-b:v", str(vbitrate),
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"-flags", "+loop", "-cmp", "+chroma",
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"-partitions", "+parti4x4+partp8x8+partb8x8",
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"-subq", "5", "-trellis", "1", "-refs", "1",
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@ -203,7 +216,7 @@ def convert(input, output, res, abitrate, vbitrate, threads, mpopts):
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"-bt", "640", "-bufsize", "10M", "-maxrate", "1000000",
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"-rc_eq", "'blurCplx^(1-qComp)'",
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"-qcomp", "0.62", "-qmin", "10", "-qmax", "51",
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"-level", "30", "-f", "mp4",
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"-x264opts", "level=3.0", "-f", "mp4",
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output ]
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# Start mplayer decoding processes in background
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@ -211,14 +224,14 @@ def convert(input, output, res, abitrate, vbitrate, threads, mpopts):
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mdv = subprocess.Popen(mpvideodec, stdout=None, stderr=None)
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mda = subprocess.Popen(mpaudiodec, stdout=None, stderr=None)
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except:
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print "Error: Starting decoding threads failed!"
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print("Error: Starting decoding threads failed!")
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sys.exit(3)
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# Start ffmpeg encoding process in foreground
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try:
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subprocess.check_call(ffmenc)
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except subprocess.CalledProcessError:
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print "Error: Encoding thread failed!"
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print("Error: Encoding thread failed!")
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sys .exit(4)
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@ -238,31 +251,33 @@ def cleanup():
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# Cleanup
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try:
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os.kill(mda.pid())
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os.kill(mdv.pid())
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if (mda != None):
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os.kill(mda.pid())
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if (mdv != None):
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os.kill(mdv.pid())
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finally:
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try:
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if (afifo != None):
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os.remove(afifo)
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if (vfifo != None):
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os.remove(vfifo)
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finally:
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sys.exit(0)
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os._exit(0)
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def usage():
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"""Print avaiable commandline arguments"""
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print "This is n900-encode.py (C) 2010 Stefan Brand <seiichiro0185 AT tol DOT ch>"
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print "Usage:"
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print " n900-encode.py --input <file> [opts]\n"
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print "Options:"
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print " --input <file> [-i]: Video to Convert"
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print " --output <file> [-o]: Name of the converted Video"
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print " --mpopts \"<opts>\" [-m]: Additional options for mplayer (eg -sid 1 or -aid 1) Must be enclosed in \"\""
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print " --abitrate <br> [-a]: Audio Bitrate in KBit/s"
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print " --vbitrate <br> [-v]: Video Bitrate in kBit/s"
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print " --threads <num> [-t]: Use <num> Threads to encode"
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print " --force-overwrite [-f]: Overwrite output-file if existing"
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print " --help [-h]: Print this Help"
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sys.exit(0)
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print("This is n900-encode.py (C) 2010 Stefan Brand <seiichiro0185 AT tol DOT ch>")
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print("Usage:")
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print(" n900-encode.py --input <file> [opts]\n")
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print("Options:")
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print(" --input <file> [-i]: Video to Convert")
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print(" --output <file> [-o]: Name of the converted Video")
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print(" --mpopts \"<opts>\" [-m]: Additional options for mplayer (eg -sid 1 or -aid 1) Must be enclosed in \"\"")
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print(" --abitrate <br> [-a]: Audio Bitrate in KBit/s")
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print(" --vbitrate <br> [-v]: Video Bitrate in kBit/s")
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print(" --threads <num> [-t]: Use <num> Threads to encode")
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print(" --force-overwrite [-f]: Overwrite output-file if existing")
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print(" --help [-h]: Print this Help")
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os._exit(0)
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# Start the Main Function
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@ -277,5 +292,5 @@ if __name__ == "__main__":
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if len(sys.argv) > 1:
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main(sys.argv[1:])
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else:
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print "Error: You have to give an input file at least!"
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print("Error: You have to give an input file at least!")
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usage()
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