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Code Issues Releases Wiki Activity

Use optimized ffmpeg params for pipe operation

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This commit is contained in:
Anand Tamariya 2018-12-27 20:08:02 +05:30
parent f0cbbcf089
commit 7e9f0baefa
1 changed files with 2 additions and 1 deletions
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youtube_dl/downloader/external.py
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@ -305,7 +305,8 @@ class FFmpegFD(ExternalFD):
else:
args += ['-f', 'mp4']
if tmpfilename == '-':
args += ["-movflags", "frag_keyframe+empty_moov"]
args += ['-movflags', 'frag_keyframe+empty_moov', '-c:v', 'libx264', '-c:a', 'aac', '-ac', '2', '-ab', '128000']
args += ['-bsf:a', 'aac_adtstoasc', '-tune', 'zerolatency', '-preset', 'ultrafast', '-level', '31', '-pix_fmt', 'yuv420p']
if (ffpp.basename == 'ffmpeg' and is_outdated_version(ffpp._versions['ffmpeg'], '3.2', False)) and (not info_dict.get('acodec') or info_dict['acodec'].split('.')[0] in ('aac', 'mp4a')):
args += ['-bsf:a', 'aac_adtstoasc']
elif protocol == 'rtmp':