nzbToMedia/nzbtomedia/transcoder/transcoder.py

219 lines
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8.5 KiB
Python

import errno
import os
import platform
import urllib2
import traceback
import nzbtomedia
from subprocess import call
from nzbtomedia import logger
def isVideoGood(videofile):
fileNameExt = os.path.basename(videofile)
fileName, fileExt = os.path.splitext(fileNameExt)
if fileExt not in nzbtomedia.MEDIACONTAINER:
return True
if platform.system() == 'Windows':
bitbucket = open('NUL')
else:
bitbucket = open('/dev/null')
if not nzbtomedia.FFPROBE:
logger.error("Cannot detect corrupt video files!, set your ffmpeg_path in your autoProcessMedia.cfg ...", 'TRANSCODER')
return False
command = [nzbtomedia.FFPROBE, videofile]
try:
logger.info('Checking [%s] for corruption, please stand by ...' % (fileNameExt), 'TRANSCODER')
result = call(command, stdout=bitbucket, stderr=bitbucket)
except:
logger.error("Checking [%s] for corruption has failed" % (fileNameExt), 'TRANSCODER')
return False
if result == 0:
logger.info("SUCCESS: [%s] has no corruption." % (fileNameExt), 'TRANSCODER')
return True
else:
logger.error("FAILED: [%s] is corrupted!" % (fileNameExt), 'TRANSCODER')
return False
def Transcode_directory(dirName):
if platform.system() == 'Windows':
bitbucket = open('NUL')
else:
bitbucket = open('/dev/null')
if not nzbtomedia.FFMPEG:
logger.error("Cannot transcode files!, set your ffmpeg_path in your autoProcessMedia.cfg ...")
return 1
logger.info("Checking for files to be transcoded")
final_result = 0 # initialize as successful
for file in nzbtomedia.listMediaFiles(dirName):
name, ext = os.path.splitext(file)
if ext in [i.replace(".","") for i in nzbtomedia.MEDIACONTAINER]:
continue
if ext == nzbtomedia.OUTPUTVIDEOEXTENSION: # we need to change the name to prevent overwriting itself.
nzbtomedia.OUTPUTVIDEOEXTENSION = '-transcoded' + nzbtomedia.OUTPUTVIDEOEXTENSION # adds '-transcoded.ext'
newfilePath = os.path.normpath(name + nzbtomedia.OUTPUTVIDEOEXTENSION)
command = [nzbtomedia.FFMPEG, '-loglevel', 'warning', '-i', file, '-map', '0'] # -map 0 takes all input streams
if platform.system() != 'Windows':
command = ['nice', '-%d' % nzbtomedia.NICENESS] + command
if len(nzbtomedia.OUTPUTVIDEOCODEC) > 0:
command.append('-c:v')
command.append(nzbtomedia.OUTPUTVIDEOCODEC)
if nzbtomedia.OUTPUTVIDEOCODEC == 'libx264' and nzbtomedia.OUTPUTVIDEOPRESET:
command.append('-pre')
command.append(nzbtomedia.OUTPUTVIDEOPRESET)
else:
command.append('-c:v')
command.append('copy')
if len(nzbtomedia.OUTPUTVIDEOFRAMERATE) > 0:
command.append('-r')
command.append(str(nzbtomedia.OUTPUTVIDEOFRAMERATE))
if len(nzbtomedia.OUTPUTVIDEOBITRATE) > 0:
command.append('-b:v')
command.append(str(nzbtomedia.OUTPUTVIDEOBITRATE))
if len(nzbtomedia.OUTPUTAUDIOCODEC) > 0:
command.append('-c:a')
command.append(nzbtomedia.OUTPUTAUDIOCODEC)
if nzbtomedia.OUTPUTAUDIOCODEC == 'aac': # Allow users to use the experimental AAC codec that's built into recent versions of ffmpeg
command.append('-strict')
command.append('-2')
else:
command.append('-c:a')
command.append('copy')
if len(nzbtomedia.OUTPUTAUDIOBITRATE) > 0:
command.append('-b:a')
command.append(str(nzbtomedia.OUTPUTAUDIOBITRATE))
if nzbtomedia.OUTPUTFASTSTART > 0:
command.append('-movflags')
command.append('+faststart')
if nzbtomedia.OUTPUTQUALITYPERCENT > 0:
command.append('-q:a')
command.append(str(nzbtomedia.OUTPUTQUALITYPERCENT))
if len(nzbtomedia.OUTPUTSUBTITLECODEC) > 0: # Not every subtitle codec can be used for every video container format!
command.append('-c:s')
command.append(nzbtomedia.OUTPUTSUBTITLECODEC) # http://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide/subtitle_options
else:
command.append('-sn') # Don't copy the subtitles over
command.append(newfilePath)
try: # Try to remove the file that we're transcoding to just in case. (ffmpeg will return an error if it already exists for some reason)
os.remove(newfilePath)
except OSError, e:
if e.errno != errno.ENOENT: # Ignore the error if it's just telling us that the file doesn't exist
logger.debug("Error when removing transcoding target: %s" % (e))
except Exception, e:
logger.debug("Error when removing transcoding target: %s" % (e))
logger.info("Transcoding video: %s" % (file))
cmd = ""
for item in command:
cmd = cmd + " " + item
logger.debug("calling command:%s" % (cmd))
result = 1 # set result to failed in case call fails.
try:
result = call(command, stdout=bitbucket, stderr=bitbucket)
except:
logger.error("Transcoding of video %s has failed" % (file))
if result == 0:
logger.info("Transcoding of video %s to %s succeeded" % (file, newfilePath))
if nzbtomedia.DUPLICATE == 0: # we get rid of the original file
os.unlink(file)
else:
logger.error("Transcoding of video %s to %s failed" % (file, newfilePath))
# this will be 0 (successful) it all are successful, else will return a positive integer for failure.
final_result = final_result + result
return final_result
def install_ffmpeg():
# goto script folder
os.chdir(os.path.join(os.getcwd(), os.path.dirname(__file__)))
# path relative to this script file
# where will the dependency packages be downloaded
DOWNLOAD_DIR = "download"
def my_mkdir(path):
if os.path.exists(path) == False:
os.makedirs(path)
def my_remove(path):
if os.path.exists(path):
os.remove(path)
def my_exec(cmd):
print "[cmd] %s" % cmd
os.system(cmd)
def prepare_package(pkg_url):
ret = True
my_mkdir(DOWNLOAD_DIR)
pkg_name = os.path.basename(urllib2.urlparse.urlparse(pkg_url).path)
pkg_fpath = os.path.join(DOWNLOAD_DIR, pkg_name)
tmp_fpath = os.path.join(DOWNLOAD_DIR, pkg_name + ".downloading")
my_remove(tmp_fpath)
if os.path.exists(pkg_fpath):
print "%s already downloaded" % pkg_name
else:
f = open(tmp_fpath, "wb")
try:
print "downloading %s from %s" % (pkg_name, pkg_url)
f.write(urllib2.urlopen(pkg_url).read())
os.rename(tmp_fpath, pkg_fpath)
except:
traceback.print_exc()
my_remove(tmp_fpath)
exit(1)
finally:
f.close()
if ret == True:
if pkg_name.endswith(".tar.bz2"):
if os.path.exists(os.path.join(DOWNLOAD_DIR, pkg_name[:-8])) == False:
print "extracting %s" % pkg_name
my_exec("cd '%s' ; tar xjf %s" % (DOWNLOAD_DIR, pkg_name))
if pkg_name.endswith(".tar.gz"):
if os.path.exists(os.path.join(DOWNLOAD_DIR, pkg_name[:-7])) == False:
print "extracting %s" % pkg_name
my_exec("cd '%s' ; tar xzf %s" % (DOWNLOAD_DIR, pkg_name))
return ret
# build yasm
prepare_package("http://www.tortall.net/projects/yasm/releases/yasm-1.2.0.tar.gz")
my_exec("""
cd %s/yasm-1.2.0
./configure
make
make install
""" % (DOWNLOAD_DIR))
# build x264
prepare_package("ftp://ftp.videolan.org/pub/x264/snapshots/x264-snapshot-20140420-2245-stable.tar.bz2")
my_exec("""
cd %s/x264-snapshot-20140420-2245-stable
./configure --enable-static'
make
make install
""" % (DOWNLOAD_DIR))
# build ffmpeg
prepare_package("http://ffmpeg.org/releases/ffmpeg-2.2.1.tar.bz2")
my_exec("""
cd %s/ffmpeg-2.2.1
./configure \
--enable-gpl --enable-nonfree \
--disable-ffserver \
--disable-shared --enable-static \
--extra-cflags='-static' \
--enable-libx264 --enable-pthreads
make
make install
""" % (DOWNLOAD_DIR))
return True