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[ffmpeg] Check version lazily 

Closes #3830
This commit is contained in:
pukkandan 2022-05-22 19:51:22 +05:30
parent c4a62b99f6
commit 3a85e9cee9
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1 changed files with 90 additions and 77 deletions
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167
yt_dlp/postprocessor/ffmpeg.py
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@ -7,7 +7,7 @@ import subprocess
import time
from .common import AudioConversionError, PostProcessor
from ..compat import imghdr
from ..compat import functools, imghdr
from ..utils import (
ISO639Utils,
Popen,
@ -18,6 +18,7 @@ from ..utils import (
dfxp2srt,
encodeArgument,
encodeFilename,
filter_dict,
float_or_none,
is_outdated_version,
orderedSet,
@ -62,14 +63,15 @@ class FFmpegPostProcessorError(PostProcessingError):
class FFmpegPostProcessor(PostProcessor):
def __init__(self, downloader=None):
PostProcessor.__init__(self, downloader)
self._determine_executables()
self._prefer_ffmpeg = self.get_param('prefer_ffmpeg', True)
self._paths = self._determine_executables()
def check_version(self):
if not self.available:
raise FFmpegPostProcessorError('ffmpeg not found. Please install or provide the path using --ffmpeg-location')
required_version = '10-0' if self.basename == 'avconv' else '1.0'
if is_outdated_version(self._versions[self.basename], required_version):
if is_outdated_version(self._version, required_version):
self.report_warning(f'Your copy of {self.basename} is outdated, update {self.basename} '
f'to version {required_version} or newer if you encounter any errors')
@ -82,88 +84,99 @@ class FFmpegPostProcessor(PostProcessor):
def get_versions(downloader=None):
return FFmpegPostProcessor.get_versions_and_features(downloader)[0]
_version_cache, _features_cache = {}, {}
_ffmpeg_to_avconv = {'ffmpeg': 'avconv', 'ffprobe': 'avprobe'}
def _determine_executables(self):
programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
programs = [*self._ffmpeg_to_avconv.keys(), *self._ffmpeg_to_avconv.values()]
def get_ffmpeg_version(path, prog):
if path in self._version_cache:
self._versions[prog], self._features = self._version_cache[path], self._features_cache.get(path, {})
return
out = _get_exe_version_output(path, ['-bsfs'], to_screen=self.write_debug)
ver = detect_exe_version(out) if out else False
if ver:
regexs = [
r'(?:\d+:)?([0-9.]+)-[0-9]+ubuntu[0-9.]+$', # Ubuntu, see [1]
r'n([0-9.]+)$', # Arch Linux
# 1. http://www.ducea.com/2006/06/17/ubuntu-package-version-naming-explanation/
]
for regex in regexs:
mobj = re.match(regex, ver)
if mobj:
ver = mobj.group(1)
self._versions[prog] = self._version_cache[path] = ver
if prog != 'ffmpeg' or not out:
return
mobj = re.search(r'(?m)^\s+libavformat\s+(?:[0-9. ]+)\s+/\s+(?P<runtime>[0-9. ]+)', out)
lavf_runtime_version = mobj.group('runtime').replace(' ', '') if mobj else None
self._features = self._features_cache[path] = {
'fdk': '--enable-libfdk-aac' in out,
'setts': 'setts' in out.splitlines(),
'needs_adtstoasc': is_outdated_version(lavf_runtime_version, '57.56.100', False),
}
self.basename = None
self.probe_basename = None
self._paths = None
self._versions = None
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}
return {p: p for p in programs}
if not os.path.exists(location):
self.report_warning(f'ffmpeg-location {location} does not exist! Continuing without ffmpeg')
return {}
elif os.path.isdir(location):
dirname, basename = location, None
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
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 self._ffmpeg_to_avconv.keys():
self._prefer_ffmpeg = True
self._paths = {
p: os.path.join(dirname, p) for p in programs}
if basename:
self._paths[basename] = location
paths = {p: os.path.join(dirname, p) for p in programs}
if basename:
paths[basename] = location
return paths
self._versions = {}
# NB: probe must be first for _features to be poulated correctly
executables = {'probe_basename': ('ffprobe', 'avprobe'), 'basename': ('ffmpeg', 'avconv')}
if prefer_ffmpeg is False:
executables = {k: v[::-1] for k, v in executables.items()}
for var, prefs in executables.items():
for p in prefs:
get_ffmpeg_version(self._paths[p], p)
if self._versions[p]:
setattr(self, var, p)
break
_version_cache, _features_cache = {None: None}, {}
if self.basename == 'avconv':
def _get_ffmpeg_version(self, prog):
path = self._paths.get(prog)
if path in self._version_cache:
return self._version_cache[path], self._features_cache.get(path, {})
out = _get_exe_version_output(path, ['-bsfs'], to_screen=self.write_debug)
ver = detect_exe_version(out) if out else False
if ver:
regexs = [
r'(?:\d+:)?([0-9.]+)-[0-9]+ubuntu[0-9.]+$', # Ubuntu, see [1]
r'n([0-9.]+)$', # Arch Linux
# 1. http://www.ducea.com/2006/06/17/ubuntu-package-version-naming-explanation/
]
for regex in regexs:
mobj = re.match(regex, ver)
if mobj:
ver = mobj.group(1)
self._version_cache[path] = ver
if prog != 'ffmpeg' or not out:
return ver, {}
mobj = re.search(r'(?m)^\s+libavformat\s+(?:[0-9. ]+)\s+/\s+(?P<runtime>[0-9. ]+)', out)
lavf_runtime_version = mobj.group('runtime').replace(' ', '') if mobj else None
self._features_cache[path] = features = {
'fdk': '--enable-libfdk-aac' in out,
'setts': 'setts' in out.splitlines(),
'needs_adtstoasc': is_outdated_version(lavf_runtime_version, '57.56.100', False),
}
return ver, features
@property
def _versions(self):
return filter_dict({self.basename: self._version, self.probe_basename: self._probe_version})
@functools.cached_property
def basename(self):
self._version # run property
return self.basename
@functools.cached_property
def probe_basename(self):
self._probe_version # run property
return self.probe_basename
def _get_version(self, kind):
executables = (kind, self._ffmpeg_to_avconv[kind])
if not self._prefer_ffmpeg:
executables = reversed(executables)
basename, version, features = next(filter(
lambda x: x[1], ((p, *self._get_ffmpeg_version(p)) for p in executables)), (None, None, {}))
if kind == 'ffmpeg':
self.basename, self._features = basename, features
else:
self.probe_basename = basename
if basename == self._ffmpeg_to_avconv[kind]:
self.deprecation_warning(
'Support for avconv is deprecated and may be removed in a future version. Use ffmpeg instead')
if self.probe_basename == 'avprobe':
self.deprecation_warning(
'Support for avprobe is deprecated and may be removed in a future version. Use ffprobe instead')
f'Support for {self._ffmpeg_to_avconv[kind]} is deprecated and may be removed in a future version. Use {kind} instead')
return version
@functools.cached_property
def _version(self):
return self._get_version('ffmpeg')
@functools.cached_property
def _probe_version(self):
return self._get_version('ffprobe')
@property
def available(self):
@ -171,7 +184,7 @@ class FFmpegPostProcessor(PostProcessor):
@property
def executable(self):
return self._paths[self.basename]
return self._paths.get(self.basename)
@property
def probe_available(self):
@ -179,7 +192,7 @@ class FFmpegPostProcessor(PostProcessor):
@property
def probe_executable(self):
return self._paths[self.probe_basename]
return self._paths.get(self.probe_basename)
@staticmethod
def stream_copy_opts(copy=True, *, ext=None):