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[ffmpeg] Cache version data

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Related: https://github.com/dasl-/pifi/issues/9
This commit is contained in:
pukkandan 2022-03-29 03:44:17 +05:30
parent 9139d2fae0
commit 8a7f68d0b1
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GPG Key ID: 7EEE9E1E817D0A39
2 changed files with 20 additions and 24 deletions
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40
yt_dlp/postprocessor/ffmpeg.py
View File

@ -86,13 +86,18 @@ class FFmpegPostProcessor(PostProcessor):
@staticmethod
def get_versions(downloader=None):
return FFmpegPostProcessor.get_version_and_features(downloader)[0]
return FFmpegPostProcessor.get_versions_and_features(downloader)[0]
_version_cache, _features_cache = {}, {}
def _determine_executables(self):
programs = ['avprobe', 'avconv', 'ffmpeg', 'ffprobe']
def get_ffmpeg_version(path, prog):
out = _get_exe_version_output(path, ['-bsfs'])
if path in self._version_cache:
self._versions[path], 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 = [
@ -104,13 +109,13 @@ class FFmpegPostProcessor(PostProcessor):
mobj = re.match(regex, ver)
if mobj:
ver = mobj.group(1)
self._versions[prog] = ver
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 = 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),
@ -148,26 +153,15 @@ class FFmpegPostProcessor(PostProcessor):
self._paths[basename] = location
self._versions = {}
for p in programs:
get_ffmpeg_version(self._paths[p], p)
executables = {'basename': ('ffmpeg', 'avconv'), 'probe_basename': ('ffprobe', 'avprobe')}
if prefer_ffmpeg is False:
prefs = ('avconv', 'ffmpeg')
else:
prefs = ('ffmpeg', 'avconv')
for p in prefs:
if self._versions[p]:
self.basename = p
break
if prefer_ffmpeg is False:
prefs = ('avprobe', 'ffprobe')
else:
prefs = ('ffprobe', 'avprobe')
for p in prefs:
if self._versions[p]:
self.probe_basename = p
break
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
if self.basename == 'avconv':
self.deprecation_warning(

4
yt_dlp/utils.py
View File

@ -2713,7 +2713,9 @@ def check_executable(exe, args=[]):
return exe
def _get_exe_version_output(exe, args):
def _get_exe_version_output(exe, args, *, to_screen=None):
if to_screen:
to_screen(f'Checking exe version: {shell_quote([exe] + args)}')
try:
# STDIN should be redirected too. On UNIX-like systems, ffmpeg triggers
# SIGTTOU if yt-dlp is run in the background.