markus/photofloat
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Support libav for video processing

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This commit is contained in:
Jerome Charaoui
2014-01-29 18:11:25 -05:00
parent 471e0eb820
commit 213fd2ffc7
2 changed files with 46 additions and 18 deletions
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26
scanner/PhotoAlbum.py
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@ -7,7 +7,7 @@ from PIL import Image
from PIL.ExifTags import TAGS
import gc
import tempfile
import subprocess
from VideoToolWrapper import *
class Album(object):
def __init__(self, path):
@ -236,11 +236,8 @@ class Photo(object):
_photo_metadata.subject_distance_range_list = ["Unknown", "Macro", "Close view", "Distant view"]
def _video_metadata(self, path, original=True):
try:
p = subprocess.check_output(['/usr/bin/ffprobe', '-show_format', '-show_streams', '-of', 'json', '-loglevel', '0', path])
except KeyboardInterrupt:
raise
except:
p = VideoProbeWrapper().call('-show_format', '-show_streams', '-of', 'json', '-loglevel', '0', path)
if p == False:
self.is_valid = False
return
info = json.loads(p)
@ -330,12 +327,8 @@ class Photo(object):
def _video_thumbnails(self, thumb_path, original_path):
(tfd, tfn) = tempfile.mkstemp();
try:
subprocess.check_call(['/usr/bin/ffmpeg', '-i', original_path, '-f', 'image2', '-vsync', '1', '-vframes', '1', '-an', '-loglevel', 'quiet', tfn])
except KeyboardInterrupt:
os.unlink(tfn)
raise
except:
p = VideoTranscodeWrapper().call('-i', original_path, '-f', 'image2', '-vsync', '1', '-vframes', '1', '-an', '-loglevel', 'quiet', tfn)
if p == False:
message("couldn't extract video frame", os.path.basename(original_path))
os.unlink(tfn)
self.is_valid = False
@ -364,7 +357,7 @@ class Photo(object):
def _video_transcode(self, transcode_path, original_path):
transcode_path = os.path.join(transcode_path, cache_base(self._path) + '.webm')
transcode_cmd = ['/usr/bin/ffmpeg', '-i', original_path, '-c:v', 'libvpx', '-crf', '10', '-b:v', '800k', '-c:a', 'libvorbis', '-f', 'webm', '-threads', '2', '-loglevel', '0', '-y']
transcode_cmd = ['-i', original_path, '-c:v', 'libvpx', '-crf', '10', '-b:v', '800k', '-c:a', 'libvorbis', '-f', 'webm', '-threads', '2', '-loglevel', '0', '-y']
filters = []
info_string = "%s -> webm" % (os.path.basename(original_path))
message("transcoding", info_string)
@ -384,11 +377,8 @@ class Photo(object):
transcode_cmd.append('-vf')
transcode_cmd.append(','.join(filters))
transcode_cmd.append(transcode_path)
try:
subprocess.call(transcode_cmd)
except KeyboardInterrupt:
raise
except:
p = VideoTranscodeWrapper().call(*transcode_cmd)
if p == False:
message("transcoding failure", os.path.basename(original_path))
try:
os.unlink(transcode_path)