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5a34a80d JW |
1 | # GNU MediaGoblin -- federated, autonomous media hosting |
2 | # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. | |
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 | ||
5ac1fe80 | 17 | import argparse |
5a34a80d | 18 | import logging |
5a34a80d JW |
19 | import os |
20 | ||
896d00fb BP |
21 | import six |
22 | ||
5a34a80d | 23 | from mediagoblin import mg_globals as mgg |
5ac1fe80 | 24 | from mediagoblin.processing import ( |
440e33aa | 25 | BadMediaFail, FilenameBuilder, |
5ac1fe80 | 26 | ProgressCallback, MediaProcessor, ProcessingManager, |
1cefccc7 | 27 | request_from_args, get_process_filename, |
5ac1fe80 | 28 | store_public, copy_original) |
5a34a80d | 29 | |
5ac1fe80 | 30 | from mediagoblin.media_types.audio.transcoders import ( |
440e33aa | 31 | AudioTranscoder, AudioThumbnailer) |
57d8212a | 32 | from mediagoblin.media_types.tools import discover |
5a34a80d | 33 | |
10085b77 | 34 | _log = logging.getLogger(__name__) |
5a34a80d | 35 | |
df68438a RE |
36 | MEDIA_TYPE = 'mediagoblin.media_types.audio' |
37 | ||
64712915 | 38 | |
301da9ca | 39 | def sniff_handler(media_file, filename): |
df68438a | 40 | _log.info('Sniffing {0}'.format(MEDIA_TYPE)) |
2d1e8905 BB |
41 | try: |
42 | data = discover(media_file.name) | |
43 | except Exception as e: | |
896d00fb | 44 | _log.info(six.text_type(e)) |
2d1e8905 | 45 | return None |
57d8212a | 46 | if data and data.get_audio_streams() and not data.get_video_streams(): |
df68438a | 47 | return MEDIA_TYPE |
df68438a | 48 | return None |
5a34a80d | 49 | |
64712915 | 50 | |
5ac1fe80 RE |
51 | class CommonAudioProcessor(MediaProcessor): |
52 | """ | |
53 | Provides a base for various audio processing steps | |
54 | """ | |
0a8c0c70 | 55 | acceptable_files = ['original', 'best_quality', 'webm_audio'] |
5ac1fe80 RE |
56 | |
57 | def common_setup(self): | |
58 | """ | |
440e33aa RE |
59 | Setup the workbench directory and pull down the original file, add |
60 | the audio_config, transcoder, thumbnailer and spectrogram_tmp path | |
5ac1fe80 RE |
61 | """ |
62 | self.audio_config = mgg \ | |
9ff68c22 | 63 | .global_config['plugins']['mediagoblin.media_types.audio'] |
5ac1fe80 | 64 | |
1cefccc7 RE |
65 | # Pull down and set up the processing file |
66 | self.process_filename = get_process_filename( | |
67 | self.entry, self.workbench, self.acceptable_files) | |
68 | self.name_builder = FilenameBuilder(self.process_filename) | |
5ac1fe80 | 69 | |
5ac1fe80 RE |
70 | self.transcoder = AudioTranscoder() |
71 | self.thumbnailer = AudioThumbnailer() | |
72 | ||
73 | def copy_original(self): | |
74 | if self.audio_config['keep_original']: | |
75 | copy_original( | |
1cefccc7 | 76 | self.entry, self.process_filename, |
5ac1fe80 RE |
77 | self.name_builder.fill('{basename}{ext}')) |
78 | ||
0a8c0c70 RE |
79 | def _keep_best(self): |
80 | """ | |
81 | If there is no original, keep the best file that we have | |
82 | """ | |
83 | if not self.entry.media_files.get('best_quality'): | |
84 | # Save the best quality file if no original? | |
85 | if not self.entry.media_files.get('original') and \ | |
86 | self.entry.media_files.get('webm_audio'): | |
87 | self.entry.media_files['best_quality'] = self.entry \ | |
88 | .media_files['webm_audio'] | |
89 | ||
2e22cefd RE |
90 | def _skip_processing(self, keyname, **kwargs): |
91 | file_metadata = self.entry.get_file_metadata(keyname) | |
92 | skip = True | |
93 | ||
94 | if not file_metadata: | |
95 | return False | |
96 | ||
97 | if keyname == 'webm_audio': | |
98 | if kwargs.get('quality') != file_metadata.get('quality'): | |
99 | skip = False | |
100 | elif keyname == 'spectrogram': | |
101 | if kwargs.get('max_width') != file_metadata.get('max_width'): | |
102 | skip = False | |
103 | elif kwargs.get('fft_size') != file_metadata.get('fft_size'): | |
104 | skip = False | |
105 | elif keyname == 'thumb': | |
106 | if kwargs.get('size') != file_metadata.get('size'): | |
107 | skip = False | |
108 | ||
109 | return skip | |
110 | ||
5ac1fe80 RE |
111 | def transcode(self, quality=None): |
112 | if not quality: | |
113 | quality = self.audio_config['quality'] | |
114 | ||
2e22cefd RE |
115 | if self._skip_processing('webm_audio', quality=quality): |
116 | return | |
117 | ||
5ac1fe80 RE |
118 | progress_callback = ProgressCallback(self.entry) |
119 | webm_audio_tmp = os.path.join(self.workbench.dir, | |
120 | self.name_builder.fill( | |
121 | '{basename}{ext}')) | |
122 | ||
5ac1fe80 | 123 | self.transcoder.transcode( |
1cefccc7 | 124 | self.process_filename, |
5ac1fe80 RE |
125 | webm_audio_tmp, |
126 | quality=quality, | |
127 | progress_callback=progress_callback) | |
128 | ||
0a8c0c70 RE |
129 | self._keep_best() |
130 | ||
5ac1fe80 | 131 | _log.debug('Saving medium...') |
9448a98e RE |
132 | store_public(self.entry, 'webm_audio', webm_audio_tmp, |
133 | self.name_builder.fill('{basename}.medium.webm')) | |
5ac1fe80 | 134 | |
2e22cefd RE |
135 | self.entry.set_file_metadata('webm_audio', **{'quality': quality}) |
136 | ||
ad80fc8a | 137 | def create_spectrogram(self, max_width=None, fft_size=None): |
5ac1fe80 RE |
138 | if not max_width: |
139 | max_width = mgg.global_config['media:medium']['max_width'] | |
140 | if not fft_size: | |
141 | fft_size = self.audio_config['spectrogram_fft_size'] | |
142 | ||
2e22cefd RE |
143 | if self._skip_processing('spectrogram', max_width=max_width, |
144 | fft_size=fft_size): | |
145 | return | |
5ac1fe80 RE |
146 | wav_tmp = os.path.join(self.workbench.dir, self.name_builder.fill( |
147 | '{basename}.ogg')) | |
5ac1fe80 | 148 | _log.info('Creating OGG source for spectrogram') |
57d8212a BB |
149 | self.transcoder.transcode(self.process_filename, wav_tmp, |
150 | mux_name='oggmux') | |
2b487fc1 | 151 | |
d8f886dc | 152 | spectrogram_tmp = os.path.join(self.workbench.dir, |
347ef583 RE |
153 | self.name_builder.fill( |
154 | '{basename}-spectrogram.jpg')) | |
2b487fc1 J |
155 | |
156 | try: | |
157 | self.thumbnailer.spectrogram( | |
158 | wav_tmp, | |
159 | spectrogram_tmp, | |
160 | width=max_width, | |
161 | fft_size=fft_size) | |
162 | ||
163 | _log.debug('Saving spectrogram...') | |
164 | store_public(self.entry, 'spectrogram', thumbnail, | |
c6eaa555 | 165 | self.name_builder.fill('{basename}.spectrogram.jpg')) |
5ac1fe80 | 166 | |
2b487fc1 | 167 | file_metadata = {'max_width': max_width, |
2e22cefd | 168 | 'fft_size': fft_size} |
2b487fc1 J |
169 | self.entry.set_file_metadata('spectrogram', **file_metadata) |
170 | ||
171 | except IndexError: | |
172 | _log.warn( | |
173 | 'Your version of Numpy is too new to create the waveform thumbnail (#5457). ' | |
174 | "Try\n\t./bin/pip install numpy==1.9.1\n\t./bin/pip install scikits.audiolab==0.10.2") | |
175 | ||
176 | except Exception as exc: | |
177 | _log.warn('Failed to create spectrogram: ' | |
178 | + '{0}'.exc) | |
2e22cefd | 179 | |
5ac1fe80 RE |
180 | def generate_thumb(self, size=None): |
181 | if not size: | |
776e4d7a RE |
182 | max_width = mgg.global_config['media:thumb']['max_width'] |
183 | max_height = mgg.global_config['media:thumb']['max_height'] | |
5ac1fe80 RE |
184 | size = (max_width, max_height) |
185 | ||
2e22cefd RE |
186 | if self._skip_processing('thumb', size=size): |
187 | return | |
188 | ||
5ac1fe80 RE |
189 | thumb_tmp = os.path.join(self.workbench.dir, self.name_builder.fill( |
190 | '{basename}-thumbnail.jpg')) | |
191 | ||
d8f886dc | 192 | # We need the spectrogram to create a thumbnail |
2b487fc1 J |
193 | try: |
194 | spectrogram = self.entry.media_files.get('spectrogram') | |
195 | if not spectrogram: | |
196 | _log.info('No spectrogram found, we will create one.') | |
197 | self.create_spectrogram() | |
198 | spectrogram = self.entry.media_files['spectrogram'] | |
199 | ||
200 | spectrogram_filepath = mgg.public_store.get_local_path(spectrogram) | |
201 | ||
202 | except: | |
203 | _log.warn('Failed to create spectrogram, using default audio image instead.') | |
204 | spectrogram_filepath = 'mediagoblin/static/images/media_thumbs/audio.png' | |
d8f886dc | 205 | |
5ac1fe80 | 206 | self.thumbnailer.thumbnail_spectrogram( |
d8f886dc | 207 | spectrogram_filepath, |
5ac1fe80 | 208 | thumb_tmp, |
b95cc59b | 209 | tuple(size)) |
5ac1fe80 | 210 | |
c6eaa555 RE |
211 | store_public(self.entry, 'thumb', thumb_tmp, |
212 | self.name_builder.fill('{basename}.thumbnail.jpg')) | |
5ac1fe80 | 213 | |
2e22cefd RE |
214 | self.entry.set_file_metadata('thumb', **{'size': size}) |
215 | ||
5ac1fe80 RE |
216 | |
217 | class InitialProcessor(CommonAudioProcessor): | |
218 | """ | |
219 | Initial processing steps for new audio | |
220 | """ | |
221 | name = "initial" | |
222 | description = "Initial processing" | |
223 | ||
224 | @classmethod | |
225 | def media_is_eligible(cls, entry=None, state=None): | |
226 | """ | |
227 | Determine if this media type is eligible for processing | |
228 | """ | |
229 | if not state: | |
230 | state = entry.state | |
231 | return state in ( | |
232 | "unprocessed", "failed") | |
233 | ||
234 | @classmethod | |
235 | def generate_parser(cls): | |
236 | parser = argparse.ArgumentParser( | |
237 | description=cls.description, | |
238 | prog=cls.name) | |
239 | ||
240 | parser.add_argument( | |
241 | '--quality', | |
52e97704 | 242 | type=float, |
d8f886dc | 243 | help='vorbisenc quality. Range: -0.1..1') |
5ac1fe80 RE |
244 | |
245 | parser.add_argument( | |
246 | '--fft_size', | |
247 | type=int, | |
248 | help='spectrogram fft size') | |
249 | ||
250 | parser.add_argument( | |
251 | '--thumb_size', | |
757376e3 | 252 | nargs=2, |
5ac1fe80 | 253 | metavar=('max_width', 'max_height'), |
7674b9c0 RE |
254 | type=int, |
255 | help='minimum size is 100 x 100') | |
5ac1fe80 RE |
256 | |
257 | parser.add_argument( | |
258 | '--medium_width', | |
259 | type=int, | |
260 | help='The width of the spectogram') | |
261 | ||
5ac1fe80 RE |
262 | return parser |
263 | ||
264 | @classmethod | |
265 | def args_to_request(cls, args): | |
266 | return request_from_args( | |
7e0c51af | 267 | args, ['quality', 'fft_size', |
5ac1fe80 RE |
268 | 'thumb_size', 'medium_width']) |
269 | ||
270 | def process(self, quality=None, fft_size=None, thumb_size=None, | |
7e0c51af | 271 | medium_width=None): |
550af89f RE |
272 | self.common_setup() |
273 | ||
5ac1fe80 RE |
274 | self.transcode(quality=quality) |
275 | self.copy_original() | |
276 | ||
7e0c51af CAW |
277 | self.create_spectrogram(max_width=medium_width, fft_size=fft_size) |
278 | self.generate_thumb(size=thumb_size) | |
279 | ||
5ac1fe80 RE |
280 | self.delete_queue_file() |
281 | ||
282 | ||
2e50e4b5 RE |
283 | class Resizer(CommonAudioProcessor): |
284 | """ | |
285 | Thumbnail and spectogram resizing process steps for processed audio | |
286 | """ | |
287 | name = 'resize' | |
ad80fc8a | 288 | description = 'Resize thumbnail or spectogram' |
3225008f | 289 | thumb_size = 'thumb_size' |
2e50e4b5 RE |
290 | |
291 | @classmethod | |
292 | def media_is_eligible(cls, entry=None, state=None): | |
293 | """ | |
294 | Determine if this media entry is eligible for processing | |
295 | """ | |
296 | if not state: | |
297 | state = entry.state | |
298 | return state in 'processed' | |
299 | ||
300 | @classmethod | |
301 | def generate_parser(cls): | |
302 | parser = argparse.ArgumentParser( | |
303 | description=cls.description, | |
304 | prog=cls.name) | |
305 | ||
2e50e4b5 RE |
306 | parser.add_argument( |
307 | '--fft_size', | |
308 | type=int, | |
309 | help='spectrogram fft size') | |
310 | ||
311 | parser.add_argument( | |
312 | '--thumb_size', | |
313 | nargs=2, | |
314 | metavar=('max_width', 'max_height'), | |
7674b9c0 RE |
315 | type=int, |
316 | help='minimum size is 100 x 100') | |
2e50e4b5 RE |
317 | |
318 | parser.add_argument( | |
319 | '--medium_width', | |
320 | type=int, | |
321 | help='The width of the spectogram') | |
322 | ||
323 | parser.add_argument( | |
324 | 'file', | |
325 | choices=['thumb', 'spectrogram']) | |
326 | ||
327 | return parser | |
328 | ||
329 | @classmethod | |
330 | def args_to_request(cls, args): | |
331 | return request_from_args( | |
ad80fc8a | 332 | args, ['thumb_size', 'file', 'fft_size', 'medium_width']) |
2e50e4b5 | 333 | |
0c509b1b | 334 | def process(self, file, thumb_size=None, fft_size=None, |
2e50e4b5 RE |
335 | medium_width=None): |
336 | self.common_setup() | |
ad80fc8a | 337 | |
2e50e4b5 RE |
338 | if file == 'thumb': |
339 | self.generate_thumb(size=thumb_size) | |
340 | elif file == 'spectrogram': | |
ad80fc8a | 341 | self.create_spectrogram(max_width=medium_width, fft_size=fft_size) |
2e50e4b5 RE |
342 | |
343 | ||
0c509b1b RE |
344 | class Transcoder(CommonAudioProcessor): |
345 | """ | |
346 | Transcoding processing steps for processed audio | |
347 | """ | |
348 | name = 'transcode' | |
349 | description = 'Re-transcode audio' | |
350 | ||
351 | @classmethod | |
352 | def media_is_eligible(cls, entry=None, state=None): | |
353 | if not state: | |
354 | state = entry.state | |
355 | return state in 'processed' | |
356 | ||
357 | @classmethod | |
358 | def generate_parser(cls): | |
359 | parser = argparse.ArgumentParser( | |
360 | description=cls.description, | |
361 | prog=cls.name) | |
362 | ||
363 | parser.add_argument( | |
364 | '--quality', | |
365 | help='vorbisenc quality. Range: -0.1..1') | |
366 | ||
367 | return parser | |
368 | ||
369 | @classmethod | |
370 | def args_to_request(cls, args): | |
371 | return request_from_args( | |
372 | args, ['quality']) | |
373 | ||
374 | def process(self, quality=None): | |
375 | self.common_setup() | |
376 | self.transcode(quality=quality) | |
377 | ||
378 | ||
5ac1fe80 RE |
379 | class AudioProcessingManager(ProcessingManager): |
380 | def __init__(self): | |
1a2982d6 | 381 | super(AudioProcessingManager, self).__init__() |
5ac1fe80 | 382 | self.add_processor(InitialProcessor) |
2e50e4b5 | 383 | self.add_processor(Resizer) |
0c509b1b | 384 | self.add_processor(Transcoder) |