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[ffmpeg] Accurately detect presence of setts

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Closes #1237
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pukkandan 2021-11-04 02:24:12 +05:30
parent 673c0057e8
commit 832e9000c7
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GPG key ID: 0F00D95A001F4698
1 changed files with 6 additions and 4 deletions
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10
yt_dlp/postprocessor/ffmpeg.py
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@ -99,7 +99,10 @@ def get_ffmpeg_version(path, prog):
if prog != 'ffmpeg' or not out:
return
self._features['fdk'] = '--enable-libfdk-aac' in out
self._features = {
'fdk': '--enable-libfdk-aac' in out,
'setts': 'setts' in out.splitlines(),
}
self.basename = None
self.probe_basename = None
@ -827,11 +830,10 @@ def __init__(self, downloader=None, trim=0.001):
@PostProcessor._restrict_to(images=False)
def run(self, info):
required_version = '4.4'
if is_outdated_version(self._versions[self.basename], required_version):
if not self._features.get('setts'):
self.report_warning(
'A re-encode is needed to fix timestamps in older versions of ffmpeg. '
f'Please install ffmpeg {required_version} or later to fixup without re-encoding')
'Please install ffmpeg 4.4 or later to fixup without re-encoding')
opts = ['-vf', 'setpts=PTS-STARTPTS']
else:
opts = ['-c', 'copy', '-bsf', 'setts=ts=TS-STARTPTS']