decade-public/over-video
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minor fixes

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This commit is contained in:
Martinez 2016-03-16 11:30:40 +01:00
parent d2bc68885e
commit 9fd271351f
1 changed files with 15 additions and 5 deletions
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20
over-video.py
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@ -23,7 +23,7 @@ X264_BANNED_PIXFMTS = {'bgr24'}
# see doc/command_assembler.png
command = over.core.types.ndict()
command.identify = Command('ffprobe', '-v', 'quiet', '-print_format', 'json', '-show_format', '-show_streams', 'INFILE')
command.normalize_prepass = Command('ffmpeg', '-i', 'INFILE', '-af', 'volumedetect', '-f', 'null', '/dev/null')
command.normalize_prepass = Command('ffmpeg', '-i', 'INFILE', '-filter:a', 'volumedetect', '-f', 'null', '/dev/null')
command.encode_generic = Command('ffmpeg', '-i', 'INFILE', 'VIDEO', 'AUDIO', '-sn', 'OUTFILE')
command.sub_vorbis = Command('-codec:a', 'libvorbis', '-qscale:a', 'QUALITY', 'NORMALIZE')
command.sub_pcm = Command('-codec:a', 'pcm_s16le', 'NORMALIZE')
@ -250,18 +250,24 @@ if __name__ == '__main__':
elif out is None:
break
pb.end()
output = b''.join(output_buffer)
if b'mean_volume: ' in output:
info.mean_volume = float(re.findall(b'mean_volume: (-\d+\.\d+) dB', output)[0])
info.mean_volume = float(re.findall(b'mean_volume: (-?\d+\.\d+) dB', output)[0])
info.max_correction = -float(re.findall(b'max_volume: (-?\d+\.\d+) dB', output)[0])
info.volume_correction = main.cfg.normalize_target - info.mean_volume
else:
main.print('§runexpected ffmpeg output§/, dump follows', prefix.fail, suffix=':\n')
print(output.decode('utf-8'))
raise RuntimeError
pb.end()
main.print('detected volume %.1f dB, correction %.1f dB' %(info.mean_volume, info.volume_correction))
main.print('detected volume %.1f dB, correction %.1f dB, max. correction %.1f dB' %(info.mean_volume, info.volume_correction, info.max_correction))
if info.volume_correction > info.max_correction:
d = info.volume_correction - info.max_correction
main.print("suggested correction is %.1f dB above the stream's maximum and will cause clipping" %(d), prefix.warn)
else:
info.volume_correction = main.cfg.normalize_override
@ -386,7 +392,11 @@ if __name__ == '__main__':
elif out is None:
break
pb.set("s", files.tmpfile.stat().st_size)
try:
pb.set("s", files.tmpfile.stat().st_size)
except FileNotFoundError: # a race condition with ffmpeg
pass
pb.render()
new_filesize = over.core.text.Unit(files.tmpfile.stat().st_size, 'o')