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Commit | Line | Data |
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95d8f7ea S |
1 | from __future__ import division, unicode_literals |
2 | ||
3 | import os | |
4 | import time | |
ea0c2f21 | 5 | import json |
bd50a52b | 6 | from math import ceil |
95d8f7ea | 7 | |
4c7853de | 8 | try: |
9 | import concurrent.futures | |
10 | can_threaded_download = True | |
11 | except ImportError: | |
12 | can_threaded_download = False | |
13 | ||
95d8f7ea S |
14 | from .common import FileDownloader |
15 | from .http import HttpFD | |
edf65256 | 16 | from ..aes import aes_cbc_decrypt_bytes |
4c7853de | 17 | from ..compat import ( |
18 | compat_urllib_error, | |
19 | compat_struct_pack, | |
20 | ) | |
95d8f7ea | 21 | from ..utils import ( |
4c7853de | 22 | DownloadError, |
2e99cd30 | 23 | error_to_compat_str, |
95d8f7ea S |
24 | encodeFilename, |
25 | sanitize_open, | |
69035555 | 26 | sanitized_Request, |
95d8f7ea S |
27 | ) |
28 | ||
29 | ||
30 | class HttpQuietDownloader(HttpFD): | |
31 | def to_screen(self, *args, **kargs): | |
32 | pass | |
33 | ||
34 | ||
35 | class FragmentFD(FileDownloader): | |
36 | """ | |
37 | A base file downloader class for fragmented media (e.g. f4m/m3u8 manifests). | |
16a8b798 S |
38 | |
39 | Available options: | |
40 | ||
9603b660 S |
41 | fragment_retries: Number of times to retry a fragment for HTTP error (DASH |
42 | and hlsnative only) | |
43 | skip_unavailable_fragments: | |
44 | Skip unavailable fragments (DASH and hlsnative only) | |
0eee52f3 S |
45 | keep_fragments: Keep downloaded fragments on disk after downloading is |
46 | finished | |
e8e73840 | 47 | _no_ytdl_file: Don't use .ytdl file |
290f64db | 48 | |
7a5c1cfe | 49 | For each incomplete fragment download yt-dlp keeps on disk a special |
290f64db | 50 | bookkeeping file with download state and metadata (in future such files will |
7a5c1cfe | 51 | be used for any incomplete download handled by yt-dlp). This file is |
290f64db S |
52 | used to properly handle resuming, check download file consistency and detect |
53 | potential errors. The file has a .ytdl extension and represents a standard | |
54 | JSON file of the following format: | |
55 | ||
56 | extractor: | |
57 | Dictionary of extractor related data. TBD. | |
58 | ||
59 | downloader: | |
60 | Dictionary of downloader related data. May contain following data: | |
61 | current_fragment: | |
62 | Dictionary with current (being downloaded) fragment data: | |
85f6de25 | 63 | index: 0-based index of current fragment among all fragments |
290f64db S |
64 | fragment_count: |
65 | Total count of fragments | |
50534b71 | 66 | |
85f6de25 | 67 | This feature is experimental and file format may change in future. |
95d8f7ea S |
68 | """ |
69 | ||
75a24854 | 70 | def report_retry_fragment(self, err, frag_index, count, retries): |
721f26b8 | 71 | self.to_screen( |
4c7853de | 72 | '\r[download] Got server HTTP error: %s. Retrying fragment %d (attempt %d of %s) ...' |
75a24854 | 73 | % (error_to_compat_str(err), frag_index, count, self.format_retries(retries))) |
721f26b8 | 74 | |
75a24854 | 75 | def report_skip_fragment(self, frag_index): |
5ef7d9bd | 76 | self.to_screen('[download] Skipping fragment %d ...' % frag_index) |
9603b660 | 77 | |
69035555 S |
78 | def _prepare_url(self, info_dict, url): |
79 | headers = info_dict.get('http_headers') | |
80 | return sanitized_Request(url, None, headers) if headers else url | |
81 | ||
3ba7740d | 82 | def _prepare_and_start_frag_download(self, ctx, info_dict): |
95d8f7ea | 83 | self._prepare_frag_download(ctx) |
3ba7740d | 84 | self._start_frag_download(ctx, info_dict) |
95d8f7ea | 85 | |
e8e73840 | 86 | def __do_ytdl_file(self, ctx): |
87 | return not ctx['live'] and not ctx['tmpfilename'] == '-' and not self.params.get('_no_ytdl_file') | |
adb4b03c | 88 | |
d3f0687c | 89 | def _read_ytdl_file(self, ctx): |
500a86a5 | 90 | assert 'ytdl_corrupt' not in ctx |
d3f0687c | 91 | stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'r') |
500a86a5 | 92 | try: |
4d49884c F |
93 | ytdl_data = json.loads(stream.read()) |
94 | ctx['fragment_index'] = ytdl_data['downloader']['current_fragment']['index'] | |
95 | if 'extra_state' in ytdl_data['downloader']: | |
96 | ctx['extra_state'] = ytdl_data['downloader']['extra_state'] | |
500a86a5 S |
97 | except Exception: |
98 | ctx['ytdl_corrupt'] = True | |
99 | finally: | |
100 | stream.close() | |
d3f0687c S |
101 | |
102 | def _write_ytdl_file(self, ctx): | |
103 | frag_index_stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'w') | |
ad3dc496 | 104 | try: |
105 | downloader = { | |
106 | 'current_fragment': { | |
107 | 'index': ctx['fragment_index'], | |
108 | }, | |
109 | } | |
110 | if 'extra_state' in ctx: | |
111 | downloader['extra_state'] = ctx['extra_state'] | |
112 | if ctx.get('fragment_count') is not None: | |
113 | downloader['fragment_count'] = ctx['fragment_count'] | |
114 | frag_index_stream.write(json.dumps({'downloader': downloader})) | |
115 | finally: | |
116 | frag_index_stream.close() | |
d3f0687c | 117 | |
273762c8 | 118 | def _download_fragment(self, ctx, frag_url, info_dict, headers=None, request_data=None): |
d3f0687c | 119 | fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], ctx['fragment_index']) |
38d70284 | 120 | fragment_info_dict = { |
75a24854 RA |
121 | 'url': frag_url, |
122 | 'http_headers': headers or info_dict.get('http_headers'), | |
273762c8 | 123 | 'request_data': request_data, |
bd50a52b | 124 | 'ctx_id': ctx.get('ctx_id'), |
38d70284 | 125 | } |
126 | success = ctx['dl'].download(fragment_filename, fragment_info_dict) | |
75a24854 RA |
127 | if not success: |
128 | return False, None | |
38d70284 | 129 | if fragment_info_dict.get('filetime'): |
130 | ctx['fragment_filetime'] = fragment_info_dict.get('filetime') | |
4c7853de | 131 | ctx['fragment_filename_sanitized'] = fragment_filename |
132 | return True, self._read_fragment(ctx) | |
133 | ||
134 | def _read_fragment(self, ctx): | |
135 | down, frag_sanitized = sanitize_open(ctx['fragment_filename_sanitized'], 'rb') | |
d3f0687c S |
136 | ctx['fragment_filename_sanitized'] = frag_sanitized |
137 | frag_content = down.read() | |
75a24854 | 138 | down.close() |
4c7853de | 139 | return frag_content |
75a24854 RA |
140 | |
141 | def _append_fragment(self, ctx, frag_content): | |
d3f0687c S |
142 | try: |
143 | ctx['dest_stream'].write(frag_content) | |
593f2f79 | 144 | ctx['dest_stream'].flush() |
d3f0687c | 145 | finally: |
adb4b03c | 146 | if self.__do_ytdl_file(ctx): |
d3f0687c | 147 | self._write_ytdl_file(ctx) |
0eee52f3 | 148 | if not self.params.get('keep_fragments', False): |
99081da9 | 149 | os.remove(encodeFilename(ctx['fragment_filename_sanitized'])) |
d3f0687c | 150 | del ctx['fragment_filename_sanitized'] |
75a24854 | 151 | |
95d8f7ea | 152 | def _prepare_frag_download(self, ctx): |
5fa1702c S |
153 | if 'live' not in ctx: |
154 | ctx['live'] = False | |
5efaf43c S |
155 | if not ctx['live']: |
156 | total_frags_str = '%d' % ctx['total_frags'] | |
157 | ad_frags = ctx.get('ad_frags', 0) | |
158 | if ad_frags: | |
159 | total_frags_str += ' (not including %d ad)' % ad_frags | |
160 | else: | |
161 | total_frags_str = 'unknown (live)' | |
5fa1702c | 162 | self.to_screen( |
5efaf43c | 163 | '[%s] Total fragments: %s' % (self.FD_NAME, total_frags_str)) |
95d8f7ea S |
164 | self.report_destination(ctx['filename']) |
165 | dl = HttpQuietDownloader( | |
166 | self.ydl, | |
167 | { | |
168 | 'continuedl': True, | |
169 | 'quiet': True, | |
170 | 'noprogress': True, | |
d800609c | 171 | 'ratelimit': self.params.get('ratelimit'), |
6828c809 | 172 | 'retries': self.params.get('retries', 0), |
7097bffb | 173 | 'nopart': self.params.get('nopart', False), |
95d8f7ea S |
174 | 'test': self.params.get('test', False), |
175 | } | |
176 | ) | |
177 | tmpfilename = self.temp_name(ctx['filename']) | |
75a24854 RA |
178 | open_mode = 'wb' |
179 | resume_len = 0 | |
d3f0687c | 180 | |
75a24854 RA |
181 | # Establish possible resume length |
182 | if os.path.isfile(encodeFilename(tmpfilename)): | |
183 | open_mode = 'ab' | |
184 | resume_len = os.path.getsize(encodeFilename(tmpfilename)) | |
d3f0687c | 185 | |
adb4b03c S |
186 | # Should be initialized before ytdl file check |
187 | ctx.update({ | |
188 | 'tmpfilename': tmpfilename, | |
189 | 'fragment_index': 0, | |
190 | }) | |
d3f0687c | 191 | |
adb4b03c S |
192 | if self.__do_ytdl_file(ctx): |
193 | if os.path.isfile(encodeFilename(self.ytdl_filename(ctx['filename']))): | |
194 | self._read_ytdl_file(ctx) | |
500a86a5 S |
195 | is_corrupt = ctx.get('ytdl_corrupt') is True |
196 | is_inconsistent = ctx['fragment_index'] > 0 and resume_len == 0 | |
197 | if is_corrupt or is_inconsistent: | |
198 | message = ( | |
199 | '.ytdl file is corrupt' if is_corrupt else | |
200 | 'Inconsistent state of incomplete fragment download') | |
6f3b4a98 | 201 | self.report_warning( |
5ef7d9bd | 202 | '%s. Restarting from the beginning ...' % message) |
e7c3e334 | 203 | ctx['fragment_index'] = resume_len = 0 |
500a86a5 S |
204 | if 'ytdl_corrupt' in ctx: |
205 | del ctx['ytdl_corrupt'] | |
e7c3e334 | 206 | self._write_ytdl_file(ctx) |
adb4b03c S |
207 | else: |
208 | self._write_ytdl_file(ctx) | |
e7c3e334 | 209 | assert ctx['fragment_index'] == 0 |
d3f0687c | 210 | |
75a24854 RA |
211 | dest_stream, tmpfilename = sanitize_open(tmpfilename, open_mode) |
212 | ||
95d8f7ea S |
213 | ctx.update({ |
214 | 'dl': dl, | |
215 | 'dest_stream': dest_stream, | |
216 | 'tmpfilename': tmpfilename, | |
75a24854 RA |
217 | # Total complete fragments downloaded so far in bytes |
218 | 'complete_frags_downloaded_bytes': resume_len, | |
95d8f7ea S |
219 | }) |
220 | ||
3ba7740d | 221 | def _start_frag_download(self, ctx, info_dict): |
3bce4ff7 | 222 | resume_len = ctx['complete_frags_downloaded_bytes'] |
95d8f7ea | 223 | total_frags = ctx['total_frags'] |
bd50a52b | 224 | ctx_id = ctx.get('ctx_id') |
95d8f7ea S |
225 | # This dict stores the download progress, it's updated by the progress |
226 | # hook | |
227 | state = { | |
228 | 'status': 'downloading', | |
3bce4ff7 | 229 | 'downloaded_bytes': resume_len, |
3e0304fe RA |
230 | 'fragment_index': ctx['fragment_index'], |
231 | 'fragment_count': total_frags, | |
95d8f7ea S |
232 | 'filename': ctx['filename'], |
233 | 'tmpfilename': ctx['tmpfilename'], | |
b83b782d S |
234 | } |
235 | ||
236 | start = time.time() | |
237 | ctx.update({ | |
238 | 'started': start, | |
709185a2 S |
239 | # Amount of fragment's bytes downloaded by the time of the previous |
240 | # frag progress hook invocation | |
b83b782d S |
241 | 'prev_frag_downloaded_bytes': 0, |
242 | }) | |
95d8f7ea S |
243 | |
244 | def frag_progress_hook(s): | |
245 | if s['status'] not in ('downloading', 'finished'): | |
246 | return | |
247 | ||
bd50a52b THD |
248 | if ctx_id is not None and s.get('ctx_id') != ctx_id: |
249 | return | |
250 | ||
251 | state['max_progress'] = ctx.get('max_progress') | |
252 | state['progress_idx'] = ctx.get('progress_idx') | |
253 | ||
5fa1702c | 254 | time_now = time.time() |
2c2f1efd | 255 | state['elapsed'] = time_now - start |
3c91e416 | 256 | frag_total_bytes = s.get('total_bytes') or 0 |
3ba7740d | 257 | s['fragment_info_dict'] = s.pop('info_dict', {}) |
5fa1702c S |
258 | if not ctx['live']: |
259 | estimated_size = ( | |
3089bc74 S |
260 | (ctx['complete_frags_downloaded_bytes'] + frag_total_bytes) |
261 | / (state['fragment_index'] + 1) * total_frags) | |
5fa1702c | 262 | state['total_bytes_estimate'] = estimated_size |
95d8f7ea | 263 | |
709185a2 | 264 | if s['status'] == 'finished': |
3e0304fe RA |
265 | state['fragment_index'] += 1 |
266 | ctx['fragment_index'] = state['fragment_index'] | |
b83b782d S |
267 | state['downloaded_bytes'] += frag_total_bytes - ctx['prev_frag_downloaded_bytes'] |
268 | ctx['complete_frags_downloaded_bytes'] = state['downloaded_bytes'] | |
269 | ctx['prev_frag_downloaded_bytes'] = 0 | |
709185a2 S |
270 | else: |
271 | frag_downloaded_bytes = s['downloaded_bytes'] | |
b83b782d | 272 | state['downloaded_bytes'] += frag_downloaded_bytes - ctx['prev_frag_downloaded_bytes'] |
5fa1702c S |
273 | if not ctx['live']: |
274 | state['eta'] = self.calc_eta( | |
3bce4ff7 | 275 | start, time_now, estimated_size - resume_len, |
276 | state['downloaded_bytes'] - resume_len) | |
1b5284b1 S |
277 | state['speed'] = s.get('speed') or ctx.get('speed') |
278 | ctx['speed'] = state['speed'] | |
b83b782d | 279 | ctx['prev_frag_downloaded_bytes'] = frag_downloaded_bytes |
3ba7740d | 280 | self._hook_progress(state, info_dict) |
95d8f7ea S |
281 | |
282 | ctx['dl'].add_progress_hook(frag_progress_hook) | |
283 | ||
284 | return start | |
285 | ||
3ba7740d | 286 | def _finish_frag_download(self, ctx, info_dict): |
95d8f7ea | 287 | ctx['dest_stream'].close() |
adb4b03c S |
288 | if self.__do_ytdl_file(ctx): |
289 | ytdl_filename = encodeFilename(self.ytdl_filename(ctx['filename'])) | |
290 | if os.path.isfile(ytdl_filename): | |
291 | os.remove(ytdl_filename) | |
95d8f7ea | 292 | elapsed = time.time() - ctx['started'] |
0ff2c1ec S |
293 | |
294 | if ctx['tmpfilename'] == '-': | |
295 | downloaded_bytes = ctx['complete_frags_downloaded_bytes'] | |
296 | else: | |
297 | self.try_rename(ctx['tmpfilename'], ctx['filename']) | |
38d70284 | 298 | if self.params.get('updatetime', True): |
299 | filetime = ctx.get('fragment_filetime') | |
300 | if filetime: | |
301 | try: | |
302 | os.utime(ctx['filename'], (time.time(), filetime)) | |
303 | except Exception: | |
304 | pass | |
0ff2c1ec | 305 | downloaded_bytes = os.path.getsize(encodeFilename(ctx['filename'])) |
95d8f7ea S |
306 | |
307 | self._hook_progress({ | |
0ff2c1ec S |
308 | 'downloaded_bytes': downloaded_bytes, |
309 | 'total_bytes': downloaded_bytes, | |
95d8f7ea S |
310 | 'filename': ctx['filename'], |
311 | 'status': 'finished', | |
312 | 'elapsed': elapsed, | |
bd50a52b THD |
313 | 'ctx_id': ctx.get('ctx_id'), |
314 | 'max_progress': ctx.get('max_progress'), | |
315 | 'progress_idx': ctx.get('progress_idx'), | |
3ba7740d | 316 | }, info_dict) |
5219cb3e | 317 | |
318 | def _prepare_external_frag_download(self, ctx): | |
319 | if 'live' not in ctx: | |
320 | ctx['live'] = False | |
321 | if not ctx['live']: | |
322 | total_frags_str = '%d' % ctx['total_frags'] | |
323 | ad_frags = ctx.get('ad_frags', 0) | |
324 | if ad_frags: | |
325 | total_frags_str += ' (not including %d ad)' % ad_frags | |
326 | else: | |
327 | total_frags_str = 'unknown (live)' | |
328 | self.to_screen( | |
329 | '[%s] Total fragments: %s' % (self.FD_NAME, total_frags_str)) | |
330 | ||
331 | tmpfilename = self.temp_name(ctx['filename']) | |
332 | ||
333 | # Should be initialized before ytdl file check | |
334 | ctx.update({ | |
335 | 'tmpfilename': tmpfilename, | |
336 | 'fragment_index': 0, | |
337 | }) | |
4c7853de | 338 | |
1009f67c | 339 | def decrypter(self, info_dict): |
340 | _key_cache = {} | |
341 | ||
342 | def _get_key(url): | |
343 | if url not in _key_cache: | |
344 | _key_cache[url] = self.ydl.urlopen(self._prepare_url(info_dict, url)).read() | |
345 | return _key_cache[url] | |
346 | ||
347 | def decrypt_fragment(fragment, frag_content): | |
348 | decrypt_info = fragment.get('decrypt_info') | |
349 | if not decrypt_info or decrypt_info['METHOD'] != 'AES-128': | |
350 | return frag_content | |
351 | iv = decrypt_info.get('IV') or compat_struct_pack('>8xq', fragment['media_sequence']) | |
352 | decrypt_info['KEY'] = decrypt_info.get('KEY') or _get_key(info_dict.get('_decryption_key_url') or decrypt_info['URI']) | |
353 | # Don't decrypt the content in tests since the data is explicitly truncated and it's not to a valid block | |
354 | # size (see https://github.com/ytdl-org/youtube-dl/pull/27660). Tests only care that the correct data downloaded, | |
355 | # not what it decrypts to. | |
356 | if self.params.get('test', False): | |
357 | return frag_content | |
7687c8ac | 358 | decrypted_data = aes_cbc_decrypt_bytes(frag_content, decrypt_info['KEY'], iv) |
359 | return decrypted_data[:-decrypted_data[-1]] | |
1009f67c | 360 | |
361 | return decrypt_fragment | |
362 | ||
bd50a52b THD |
363 | def download_and_append_fragments_multiple(self, *args, pack_func=None, finish_func=None): |
364 | ''' | |
365 | @params (ctx1, fragments1, info_dict1), (ctx2, fragments2, info_dict2), ... | |
366 | all args must be either tuple or list | |
367 | ''' | |
368 | max_progress = len(args) | |
369 | if max_progress == 1: | |
370 | return self.download_and_append_fragments(*args[0], pack_func=pack_func, finish_func=finish_func) | |
371 | max_workers = self.params.get('concurrent_fragment_downloads', max_progress) | |
372 | self._prepare_multiline_status(max_progress) | |
373 | ||
374 | def thread_func(idx, ctx, fragments, info_dict, tpe): | |
375 | ctx['max_progress'] = max_progress | |
376 | ctx['progress_idx'] = idx | |
377 | return self.download_and_append_fragments(ctx, fragments, info_dict, pack_func=pack_func, finish_func=finish_func, tpe=tpe) | |
378 | ||
379 | class FTPE(concurrent.futures.ThreadPoolExecutor): | |
380 | # has to stop this or it's going to wait on the worker thread itself | |
381 | def __exit__(self, exc_type, exc_val, exc_tb): | |
382 | pass | |
383 | ||
384 | spins = [] | |
385 | for idx, (ctx, fragments, info_dict) in enumerate(args): | |
386 | tpe = FTPE(ceil(max_workers / max_progress)) | |
387 | job = tpe.submit(thread_func, idx, ctx, fragments, info_dict, tpe) | |
388 | spins.append((tpe, job)) | |
389 | ||
390 | result = True | |
391 | for tpe, job in spins: | |
392 | try: | |
393 | result = result and job.result() | |
394 | finally: | |
395 | tpe.shutdown(wait=True) | |
819e0531 | 396 | return result |
bd50a52b THD |
397 | |
398 | def download_and_append_fragments(self, ctx, fragments, info_dict, *, pack_func=None, finish_func=None, tpe=None): | |
4c7853de | 399 | fragment_retries = self.params.get('fragment_retries', 0) |
bd4d1ea3 | 400 | is_fatal = (lambda idx: idx == 0) if self.params.get('skip_unavailable_fragments', True) else (lambda _: True) |
4c7853de | 401 | if not pack_func: |
402 | pack_func = lambda frag_content, _: frag_content | |
403 | ||
404 | def download_fragment(fragment, ctx): | |
405 | frag_index = ctx['fragment_index'] = fragment['frag_index'] | |
d9d8b857 | 406 | headers = info_dict.get('http_headers', {}).copy() |
4c7853de | 407 | byte_range = fragment.get('byte_range') |
408 | if byte_range: | |
409 | headers['Range'] = 'bytes=%d-%d' % (byte_range['start'], byte_range['end'] - 1) | |
410 | ||
411 | # Never skip the first fragment | |
bd4d1ea3 | 412 | fatal = is_fatal(fragment.get('index') or (frag_index - 1)) |
4c7853de | 413 | count, frag_content = 0, None |
414 | while count <= fragment_retries: | |
415 | try: | |
416 | success, frag_content = self._download_fragment(ctx, fragment['url'], info_dict, headers) | |
417 | if not success: | |
418 | return False, frag_index | |
419 | break | |
420 | except compat_urllib_error.HTTPError as err: | |
421 | # Unavailable (possibly temporary) fragments may be served. | |
422 | # First we try to retry then either skip or abort. | |
423 | # See https://github.com/ytdl-org/youtube-dl/issues/10165, | |
424 | # https://github.com/ytdl-org/youtube-dl/issues/10448). | |
425 | count += 1 | |
426 | if count <= fragment_retries: | |
427 | self.report_retry_fragment(err, frag_index, count, fragment_retries) | |
428 | except DownloadError: | |
429 | # Don't retry fragment if error occurred during HTTP downloading | |
430 | # itself since it has own retry settings | |
431 | if not fatal: | |
432 | break | |
433 | raise | |
434 | ||
435 | if count > fragment_retries: | |
436 | if not fatal: | |
437 | return False, frag_index | |
438 | ctx['dest_stream'].close() | |
439 | self.report_error('Giving up after %s fragment retries' % fragment_retries) | |
440 | return False, frag_index | |
441 | return frag_content, frag_index | |
442 | ||
4c7853de | 443 | def append_fragment(frag_content, frag_index, ctx): |
444 | if not frag_content: | |
bd4d1ea3 | 445 | if not is_fatal(frag_index - 1): |
4c7853de | 446 | self.report_skip_fragment(frag_index) |
447 | return True | |
448 | else: | |
449 | ctx['dest_stream'].close() | |
450 | self.report_error( | |
451 | 'fragment %s not found, unable to continue' % frag_index) | |
452 | return False | |
453 | self._append_fragment(ctx, pack_func(frag_content, frag_index)) | |
454 | return True | |
455 | ||
1009f67c | 456 | decrypt_fragment = self.decrypter(info_dict) |
457 | ||
4c7853de | 458 | max_workers = self.params.get('concurrent_fragment_downloads', 1) |
459 | if can_threaded_download and max_workers > 1: | |
460 | ||
461 | def _download_fragment(fragment): | |
723d44b9 | 462 | ctx_copy = ctx.copy() |
463 | frag_content, frag_index = download_fragment(fragment, ctx_copy) | |
464 | return fragment, frag_content, frag_index, ctx_copy.get('fragment_filename_sanitized') | |
4c7853de | 465 | |
466 | self.report_warning('The download speed shown is only of one thread. This is a known issue and patches are welcome') | |
bd50a52b | 467 | with tpe or concurrent.futures.ThreadPoolExecutor(max_workers) as pool: |
4c7853de | 468 | for fragment, frag_content, frag_index, frag_filename in pool.map(_download_fragment, fragments): |
469 | ctx['fragment_filename_sanitized'] = frag_filename | |
470 | ctx['fragment_index'] = frag_index | |
471 | result = append_fragment(decrypt_fragment(fragment, frag_content), frag_index, ctx) | |
472 | if not result: | |
473 | return False | |
474 | else: | |
475 | for fragment in fragments: | |
476 | frag_content, frag_index = download_fragment(fragment, ctx) | |
477 | result = append_fragment(decrypt_fragment(fragment, frag_content), frag_index, ctx) | |
478 | if not result: | |
479 | return False | |
480 | ||
25a3f4f5 F |
481 | if finish_func is not None: |
482 | ctx['dest_stream'].write(finish_func()) | |
483 | ctx['dest_stream'].flush() | |
3ba7740d | 484 | self._finish_frag_download(ctx, info_dict) |
8e897ed2 | 485 | return True |