diff options
Diffstat (limited to 'yt_dlp/postprocessor/ffmpeg.py')
| -rw-r--r-- | yt_dlp/postprocessor/ffmpeg.py | 79 |
1 files changed, 43 insertions, 36 deletions
diff --git a/yt_dlp/postprocessor/ffmpeg.py b/yt_dlp/postprocessor/ffmpeg.py index 96f7be6ff..c2415c59a 100644 --- a/yt_dlp/postprocessor/ffmpeg.py +++ b/yt_dlp/postprocessor/ffmpeg.py @@ -16,7 +16,8 @@ from ..utils import ( encodeArgument, encodeFilename, float_or_none, - get_exe_version, + _get_exe_version_output, + detect_exe_version, is_outdated_version, ISO639Utils, orderedSet, @@ -80,10 +81,10 @@ class FFmpegPostProcessor(PostProcessor): def _determine_executables(self): programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe'] - prefer_ffmpeg = True - def get_ffmpeg_version(path): - ver = get_exe_version(path, args=['-version']) + def get_ffmpeg_version(path, prog): + out = _get_exe_version_output(path, ['-bsfs']) + ver = detect_exe_version(out) if out else False if ver: regexs = [ r'(?:\d+:)?([0-9.]+)-[0-9]+ubuntu[0-9.]+$', # Ubuntu, see [1] @@ -94,42 +95,46 @@ class FFmpegPostProcessor(PostProcessor): mobj = re.match(regex, ver) if mobj: ver = mobj.group(1) - return ver + self._versions[prog] = ver + if prog != 'ffmpeg' or not out: + return + + # TODO: Feature detection self.basename = None self.probe_basename = None - self._paths = None self._versions = None - if self._downloader: - prefer_ffmpeg = self.get_param('prefer_ffmpeg', True) - location = self.get_param('ffmpeg_location') - if location is not None: - if not os.path.exists(location): - self.report_warning( - 'ffmpeg-location %s does not exist! ' - 'Continuing without ffmpeg.' % (location)) - self._versions = {} - return - elif os.path.isdir(location): - dirname, basename = location, None - else: - basename = os.path.splitext(os.path.basename(location))[0] - basename = next((p for p in programs if basename.startswith(p)), 'ffmpeg') - dirname = os.path.dirname(os.path.abspath(location)) - if basename in ('ffmpeg', 'ffprobe'): - prefer_ffmpeg = True - - self._paths = dict( - (p, os.path.join(dirname, p)) for p in programs) - if basename: - self._paths[basename] = location - self._versions = dict( - (p, get_ffmpeg_version(self._paths[p])) for p in programs) - if self._versions is None: - self._versions = dict( - (p, get_ffmpeg_version(p)) for p in programs) - self._paths = dict((p, p) for p in programs) + self._features = {} + + prefer_ffmpeg = self.get_param('prefer_ffmpeg', True) + location = self.get_param('ffmpeg_location') + if location is None: + self._paths = {p: p for p in programs} + else: + if not os.path.exists(location): + self.report_warning( + 'ffmpeg-location %s does not exist! ' + 'Continuing without ffmpeg.' % (location)) + self._versions = {} + return + elif os.path.isdir(location): + dirname, basename = location, None + else: + basename = os.path.splitext(os.path.basename(location))[0] + basename = next((p for p in programs if basename.startswith(p)), 'ffmpeg') + dirname = os.path.dirname(os.path.abspath(location)) + if basename in ('ffmpeg', 'ffprobe'): + prefer_ffmpeg = True + + self._paths = dict( + (p, os.path.join(dirname, p)) for p in programs) + if basename: + self._paths[basename] = location + + self._versions = {} + for p in programs: + get_ffmpeg_version(self._paths[p], p) if prefer_ffmpeg is False: prefs = ('avconv', 'ffmpeg') @@ -382,7 +387,9 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor): limits = { 'libmp3lame': (10, 0), - 'aac': (0.1, 11), + # FFmpeg's AAC encoder does not have an upper limit for the value of -q:a. + # Experimentally, with values over 4, bitrate changes were minimal or non-existent + 'aac': (0.1, 4), 'vorbis': (0, 10), 'opus': None, # doesn't support -q:a 'wav': None, |