diff options
Diffstat (limited to 'youtube_dl/postprocessor/ffmpeg.py')
| -rw-r--r-- | youtube_dl/postprocessor/ffmpeg.py | 60 |
1 files changed, 47 insertions, 13 deletions
diff --git a/youtube_dl/postprocessor/ffmpeg.py b/youtube_dl/postprocessor/ffmpeg.py index 6f010a9c7..e13deab4b 100644 --- a/youtube_dl/postprocessor/ffmpeg.py +++ b/youtube_dl/postprocessor/ffmpeg.py @@ -1,4 +1,5 @@ import os +import re import subprocess import sys import time @@ -11,6 +12,7 @@ from ..utils import ( compat_subprocess_get_DEVNULL, encodeArgument, encodeFilename, + is_outdated_version, PostProcessingError, prepend_extension, shell_quote, @@ -18,38 +20,70 @@ from ..utils import ( ) +def get_version(executable): + """ Returns the version of the specified executable, + or False if the executable is not present """ + try: + out, err = subprocess.Popen( + [executable, '-version'], + stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate() + except OSError: + return False + firstline = out.partition(b'\n')[0].decode('ascii', 'ignore') + m = re.search(r'version\s+([0-9._-a-zA-Z]+)', firstline) + if not m: + return u'present' + else: + return m.group(1) + + class FFmpegPostProcessorError(PostProcessingError): pass class FFmpegPostProcessor(PostProcessor): - def __init__(self, downloader=None, deletetempfiles=False): + def __init__(self, downloader, deletetempfiles=False): PostProcessor.__init__(self, downloader) - self._exes = self.detect_executables() + self._versions = self.get_versions() self._deletetempfiles = deletetempfiles + def check_version(self): + if not self._executable: + raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.') + + REQUIRED_VERSION = '1.0' + if is_outdated_version( + self._versions[self._executable], REQUIRED_VERSION): + warning = u'Your copy of %s is outdated, update %s to version %s or newer if you encounter any errors.' % ( + self._executable, self._executable, REQUIRED_VERSION) + self._downloader.report_warning(warning) + @staticmethod - def detect_executables(): + def get_versions(): programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe'] - return dict((program, check_executable(program, ['-version'])) for program in programs) + return dict((program, get_version(program)) for program in programs) - def _get_executable(self): + @property + def _executable(self): if self._downloader.params.get('prefer_ffmpeg', False): - return self._exes['ffmpeg'] or self._exes['avconv'] + prefs = ('ffmpeg', 'avconv') else: - return self._exes['avconv'] or self._exes['ffmpeg'] + prefs = ('avconv', 'ffmpeg') + for p in prefs: + if self._versions[p]: + return p + return None def _uses_avconv(self): - return self._get_executable() == self._exes['avconv'] + return self._executable == 'avconv' def run_ffmpeg_multiple_files(self, input_paths, out_path, opts): - if not self._get_executable(): - raise FFmpegPostProcessorError(u'ffmpeg or avconv not found. Please install one.') + self.check_version() files_cmd = [] for path in input_paths: files_cmd.extend(['-i', encodeFilename(path, True)]) - cmd = ([self._get_executable(), '-y'] + files_cmd + cmd = ([self._executable, '-y'] + files_cmd + [encodeArgument(o) for o in opts] + [encodeFilename(self._ffmpeg_filename_argument(out_path), True)]) @@ -182,14 +216,14 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor): 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._get_executable() + '] Destination: ' + new_path) + self._downloader.to_screen(u'[' + self._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._get_executable() + msg = u'error running ' + self._executable raise PostProcessingError(msg) # Try to update the date time for extracted audio file. |