import time
-from .utils import (
+from .common import AudioConversionError, PostProcessor
+
+from ..utils import (
+ check_executable,
compat_subprocess_get_DEVNULL,
encodeFilename,
PostProcessingError,
+ prepend_extension,
shell_quote,
subtitles_filename,
)
-class PostProcessor(object):
- """Post Processor class.
-
- PostProcessor objects can be added to downloaders with their
- add_post_processor() method. When the downloader has finished a
- successful download, it will take its internal chain of PostProcessors
- and start calling the run() method on each one of them, first with
- an initial argument and then with the returned value of the previous
- PostProcessor.
-
- The chain will be stopped if one of them ever returns None or the end
- of the chain is reached.
-
- PostProcessor objects follow a "mutual registration" process similar
- to InfoExtractor objects.
- """
-
- _downloader = None
-
- def __init__(self, downloader=None):
- self._downloader = downloader
-
- def set_downloader(self, downloader):
- """Sets the downloader for this PP."""
- self._downloader = downloader
-
- def run(self, information):
- """Run the PostProcessor.
-
- The "information" argument is a dictionary like the ones
- composed by InfoExtractors. The only difference is that this
- one has an extra field called "filepath" that points to the
- downloaded file.
-
- This method returns a tuple, the first element of which describes
- whether the original file should be kept (i.e. not deleted - None for
- no preference), and the second of which is the updated information.
-
- In addition, this method may raise a PostProcessingError
- exception if post processing fails.
- """
- return None, information # by default, keep file and do nothing
class FFmpegPostProcessorError(PostProcessingError):
pass
-class AudioConversionError(PostProcessingError):
- pass
-
class FFmpegPostProcessor(PostProcessor):
def __init__(self,downloader=None):
PostProcessor.__init__(self, downloader)
@staticmethod
def detect_executables():
- def executable(exe):
- try:
- subprocess.Popen([exe, '-version'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
- except OSError:
- return False
- return exe
programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
- return dict((program, executable(program)) for program in programs)
+ return dict((program, check_executable(program, ['-version'])) for program in programs)
+
+ def _get_executable(self):
+ if self._downloader.params.get('prefer_ffmpeg', False):
+ return self._exes['ffmpeg'] or self._exes['avconv']
+ else:
+ return self._exes['avconv'] or self._exes['ffmpeg']
+
+ def _uses_avconv(self):
+ return self._get_executable() == self._exes['avconv']
def run_ffmpeg_multiple_files(self, input_paths, out_path, opts):
- if not self._exes['ffmpeg'] and not self._exes['avconv']:
+ if not self._get_executable():
raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.')
files_cmd = []
for path in input_paths:
- files_cmd.extend(['-i', encodeFilename(path)])
- cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y'] + files_cmd
+ files_cmd.extend(['-i', encodeFilename(path, True)])
+ cmd = ([self._get_executable(), '-y'] + files_cmd
+ opts +
- [encodeFilename(self._ffmpeg_filename_argument(out_path))])
+ [encodeFilename(self._ffmpeg_filename_argument(out_path), True)])
if self._downloader.params.get('verbose', False):
self._downloader.to_screen(u'[debug] ffmpeg command line: %s' % shell_quote(cmd))
return u'./' + fn
return fn
+
class FFmpegExtractAudioPP(FFmpegPostProcessor):
def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, nopostoverwrites=False):
FFmpegPostProcessor.__init__(self, downloader)
if not self._exes['ffprobe'] and not self._exes['avprobe']:
raise PostProcessingError(u'ffprobe or avprobe not found. Please install one.')
try:
- cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', encodeFilename(self._ffmpeg_filename_argument(path))]
+ cmd = [
+ self._exes['avprobe'] or self._exes['ffprobe'],
+ '-show_streams',
+ encodeFilename(self._ffmpeg_filename_argument(path), True)]
handle = subprocess.Popen(cmd, stderr=compat_subprocess_get_DEVNULL(), stdout=subprocess.PIPE)
output = handle.communicate()[0]
if handle.wait() != 0:
return None
def run_ffmpeg(self, path, out_path, codec, more_opts):
- if not self._exes['ffmpeg'] and not self._exes['avconv']:
- raise AudioConversionError('ffmpeg or avconv not found. Please install one.')
if codec is None:
acodec_opts = []
else:
if filecodec is None:
raise PostProcessingError(u'WARNING: unable to obtain file audio codec with ffprobe')
+ uses_avconv = self._uses_avconv()
more_opts = []
if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
if filecodec == 'aac' and self._preferredcodec in ['m4a', 'best']:
# Lossless, but in another container
acodec = 'copy'
extension = 'm4a'
- more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
+ more_opts = ['-bsf:a' if uses_avconv else '-absf', 'aac_adtstoasc']
elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']:
# Lossless if possible
acodec = 'copy'
more_opts = []
if self._preferredquality is not None:
if int(self._preferredquality) < 10:
- more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
+ more_opts += ['-q:a' if uses_avconv else '-aq', self._preferredquality]
else:
- more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
+ more_opts += ['-b:a' if uses_avconv else '-ab', self._preferredquality + 'k']
else:
# We convert the audio (lossy)
acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
if self._preferredquality is not None:
# The opus codec doesn't support the -aq option
if int(self._preferredquality) < 10 and extension != 'opus':
- more_opts += [self._exes['avconv'] and '-q:a' or '-aq', self._preferredquality]
+ more_opts += ['-q:a' if uses_avconv else '-aq', self._preferredquality]
else:
- more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality + 'k']
+ more_opts += ['-b:a' if uses_avconv else '-ab', self._preferredquality + 'k']
if self._preferredcodec == 'aac':
more_opts += ['-f', 'adts']
if self._preferredcodec == 'm4a':
- more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
+ more_opts += ['-bsf:a' if uses_avconv else '-absf', 'aac_adtstoasc']
if self._preferredcodec == 'vorbis':
extension = 'ogg'
if self._preferredcodec == 'wav':
if self._nopostoverwrites and os.path.exists(encodeFilename(new_path)):
self._downloader.to_screen(u'[youtube] Post-process file %s exists, skipping' % new_path)
else:
- self._downloader.to_screen(u'[' + (self._exes['avconv'] and 'avconv' or 'ffmpeg') + '] Destination: ' + new_path)
+ self._downloader.to_screen(u'[' + self._get_executable() + '] Destination: ' + new_path)
self.run_ffmpeg(path, new_path, acodec, more_opts)
except:
etype,e,tb = sys.exc_info()
if isinstance(e, AudioConversionError):
msg = u'audio conversion failed: ' + e.msg
else:
- msg = u'error running ' + (self._exes['avconv'] and 'avconv' or 'ffmpeg')
+ msg = u'error running ' + self._get_executable()
raise PostProcessingError(msg)
# Try to update the date time for extracted audio file.
information['filepath'] = new_path
return self._nopostoverwrites,information
+
class FFmpegVideoConvertor(FFmpegPostProcessor):
def __init__(self, downloader=None,preferedformat=None):
super(FFmpegVideoConvertor, self).__init__(downloader)
return True, info
filename = info['filepath']
- ext = os.path.splitext(filename)[1][1:]
- temp_filename = filename + u'.temp'
+ temp_filename = prepend_extension(filename, 'temp')
options = ['-c', 'copy']
for (name, value) in metadata.items():
options.extend(['-metadata', '%s=%s' % (name, value)])
- options.extend(['-f', ext])
self._downloader.to_screen(u'[ffmpeg] Adding metadata to \'%s\'' % filename)
self.run_ffmpeg(filename, temp_filename, options)
os.remove(encodeFilename(filename))
os.rename(encodeFilename(temp_filename), encodeFilename(filename))
return True, info
+
+
+class FFmpegMergerPP(FFmpegPostProcessor):
+ def run(self, info):
+ filename = info['filepath']
+ args = ['-c', 'copy']
+ self.run_ffmpeg_multiple_files(info['__files_to_merge'], filename, args)
+ return True, info
+
Rapsys Git / youtubedl / blobdiff