markus/photofloat
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Be totally quiet. Overwrite thumbs.

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This commit is contained in:
Joachim Tingvold
2015-06-17 20:10:50 +02:00
parent 52e025b07d
commit 9a15b2c2c0
1 changed files with 28 additions and 19 deletions
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47
scanner/PhotoAlbum.py
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@ -376,7 +376,16 @@ class Photo(object):
def _video_thumbnails(self, thumb_path, original_path):
(tfd, tfn) = tempfile.mkstemp();
p = VideoTranscodeWrapper().call('-i', original_path, '-f', 'image2', '-vsync', '1', '-vframes', '1', '-an', '-loglevel', 'quiet', tfn)
p = VideoTranscodeWrapper().call(
'-i', original_path, # original file to extract thumbs from
'-f', 'image2', # extract image
'-vsync', '1', # CRF
'-vframes', '1', # extrat 1 single frame
'-an', # disable audio
'-loglevel', 'quiet', # don't display anything
'-y', # don't prompt for overwrite
tfn
)
if p == False:
message("couldn't extract video frame", os.path.basename(original_path))
os.unlink(tfn)
@ -409,24 +418,24 @@ class Photo(object):
# get number of cores on the system, and use all minus one
num_of_cores = os.sysconf('SC_NPROCESSORS_ONLN') - 1
transcode_cmd = [
'-i', original_path, # original file to be encoded
'-c:v', 'libx264', # set h264 as videocodec
'-preset', 'slow', # set specific preset that provides a certain encoding speed to compression ratio
'-profile:v', 'baseline', # set output to specific h264 profile
'-level', '3.0', # sets highest compatibility with target devices
'-crf', '20', # set quality
'-b:v', '4M', # set videobitrate to 4Mbps
'-strict', 'experimental', # allow native aac codec below
'-c:a', 'aac', # set aac as audiocodec
'-ac', '2', # force two audiochannels
'-ab', '160k', # set audiobitrate to 160Kbps
'-maxrate', '10000000', # limits max rate, will degrade CRF if needed
'-bufsize', '10000000', # define how much the client should buffer
'-f', 'mp4', # fileformat mp4
'-threads', str(num_of_cores), # number of cores (all minus one)
'-loglevel', '0', # don't display anything
'-y' # don't prompt for overwrite
]
'-i', original_path, # original file to be encoded
'-c:v', 'libx264', # set h264 as videocodec
'-preset', 'slow', # set specific preset that provides a certain encoding speed to compression ratio
'-profile:v', 'baseline', # set output to specific h264 profile
'-level', '3.0', # sets highest compatibility with target devices
'-crf', '20', # set quality
'-b:v', '4M', # set videobitrate to 4Mbps
'-strict', 'experimental', # allow native aac codec below
'-c:a', 'aac', # set aac as audiocodec
'-ac', '2', # force two audiochannels
'-ab', '160k', # set audiobitrate to 160Kbps
'-maxrate', '10000000', # limits max rate, will degrade CRF if needed
'-bufsize', '10000000', # define how much the client should buffer
'-f', 'mp4', # fileformat mp4
'-threads', str(num_of_cores), # number of cores (all minus one)
'-loglevel', 'quiet', # don't display anything
'-y' # don't prompt for overwrite
]
filters = []
info_string = "%s -> mp4, h264" % (os.path.basename(original_path))
message("transcoding", info_string)