Commit | Line | Data |
---|---|---|
93bdab9d | 1 | # GNU MediaGoblin -- federated, autonomous media hosting |
cf29e8a8 | 2 | # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. |
93bdab9d JW |
3 | # |
4 | # This program is free software: you can redistribute it and/or modify | |
5 | # it under the terms of the GNU Affero General Public License as published by | |
6 | # the Free Software Foundation, either version 3 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU Affero General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU Affero General Public License | |
15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | ||
93bdab9d | 17 | import tempfile |
e9c1b938 | 18 | import logging |
a63b640f | 19 | import os |
93bdab9d | 20 | |
93bdab9d | 21 | from mediagoblin import mg_globals as mgg |
8e5f9746 JW |
22 | from mediagoblin.processing import mark_entry_failed, \ |
23 | THUMB_SIZE, MEDIUM_SIZE, create_pub_filepath | |
26729e02 | 24 | from . import transcoders |
1f255101 | 25 | |
1f255101 | 26 | logging.basicConfig() |
8e5f9746 JW |
27 | |
28 | _log = logging.getLogger(__name__) | |
29 | _log.setLevel(logging.DEBUG) | |
93bdab9d | 30 | |
ec4261a4 | 31 | def sniff_handler(media_file, **kw): |
10085b77 JW |
32 | transcoder = transcoders.VideoTranscoder() |
33 | try: | |
34 | data = transcoder.discover(media_file.name) | |
35 | ||
36 | _log.debug('Discovered: {0}'.format(data.__dict__)) | |
37 | ||
38 | if data.is_video == True: | |
39 | return True | |
40 | except: | |
41 | _log.error('Exception caught when trying to discover {0}'.format( | |
42 | kw.get('media'))) | |
43 | ||
ec4261a4 | 44 | return False |
93bdab9d JW |
45 | |
46 | def process_video(entry): | |
47 | """ | |
5a34a80d JW |
48 | Process a video entry, transcode the queued media files (originals) and |
49 | create a thumbnail for the entry. | |
93bdab9d | 50 | """ |
23caf305 CAW |
51 | video_config = mgg.global_config['media_type:mediagoblin.media_types.video'] |
52 | ||
93bdab9d JW |
53 | workbench = mgg.workbench_manager.create_workbench() |
54 | ||
8545cfc9 | 55 | queued_filepath = entry.queued_media_file |
93bdab9d JW |
56 | queued_filename = workbench.localized_file( |
57 | mgg.queue_store, queued_filepath, | |
58 | 'source') | |
59 | ||
e9c1b938 | 60 | medium_filepath = create_pub_filepath( |
a63b640f JW |
61 | entry, |
62 | '{original}-640p.webm'.format( | |
63 | original=os.path.splitext( | |
5a34a80d | 64 | queued_filepath[-1])[0] # Select the file name without .ext |
a63b640f | 65 | )) |
93bdab9d | 66 | |
e9c1b938 JW |
67 | thumbnail_filepath = create_pub_filepath( |
68 | entry, 'thumbnail.jpg') | |
1f255101 | 69 | |
93bdab9d | 70 | |
e9c1b938 JW |
71 | # Create a temporary file for the video destination |
72 | tmp_dst = tempfile.NamedTemporaryFile() | |
93bdab9d | 73 | |
e9c1b938 JW |
74 | with tmp_dst: |
75 | # Transcode queued file to a VP8/vorbis file that fits in a 640x640 square | |
10085b77 JW |
76 | transcoder = transcoders.VideoTranscoder() |
77 | transcoder.transcode(queued_filename, tmp_dst.name) | |
93bdab9d | 78 | |
e9c1b938 | 79 | # Push transcoded video to public storage |
8e5f9746 | 80 | _log.debug('Saving medium...') |
e9c1b938 JW |
81 | mgg.public_store.get_file(medium_filepath, 'wb').write( |
82 | tmp_dst.read()) | |
8e5f9746 | 83 | _log.debug('Saved medium') |
e9c1b938 | 84 | |
228c4470 | 85 | entry.media_files['webm_640'] = medium_filepath |
e9c1b938 JW |
86 | |
87 | # Save the width and height of the transcoded video | |
ddc1cae9 | 88 | entry.media_data['video'] = { |
e9c1b938 JW |
89 | u'width': transcoder.dst_data.videowidth, |
90 | u'height': transcoder.dst_data.videoheight} | |
93bdab9d | 91 | |
e9c1b938 JW |
92 | # Create a temporary file for the video thumbnail |
93 | tmp_thumb = tempfile.NamedTemporaryFile() | |
93bdab9d | 94 | |
e9c1b938 JW |
95 | with tmp_thumb: |
96 | # Create a thumbnail.jpg that fits in a 180x180 square | |
97 | transcoders.VideoThumbnailer(queued_filename, tmp_thumb.name) | |
1f255101 | 98 | |
e9c1b938 | 99 | # Push the thumbnail to public storage |
8e5f9746 | 100 | _log.debug('Saving thumbnail...') |
e9c1b938 JW |
101 | mgg.public_store.get_file(thumbnail_filepath, 'wb').write( |
102 | tmp_thumb.read()) | |
8e5f9746 | 103 | _log.debug('Saved thumbnail') |
93bdab9d | 104 | |
228c4470 | 105 | entry.media_files['thumb'] = thumbnail_filepath |
93bdab9d | 106 | |
23caf305 CAW |
107 | if video_config['keep_original']: |
108 | # Push original file to public storage | |
109 | queued_file = file(queued_filename, 'rb') | |
93bdab9d | 110 | |
23caf305 CAW |
111 | with queued_file: |
112 | original_filepath = create_pub_filepath( | |
113 | entry, | |
114 | queued_filepath[-1]) | |
26729e02 | 115 | |
23caf305 CAW |
116 | with mgg.public_store.get_file(original_filepath, 'wb') as \ |
117 | original_file: | |
118 | _log.debug('Saving original...') | |
119 | original_file.write(queued_file.read()) | |
120 | _log.debug('Saved original') | |
1f255101 | 121 | |
228c4470 | 122 | entry.media_files['original'] = original_filepath |
93bdab9d | 123 | |
e9c1b938 JW |
124 | mgg.queue_store.delete_file(queued_filepath) |
125 | ||
e9c1b938 JW |
126 | # Save the MediaEntry |
127 | entry.save() |