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Commit | Line | Data |
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1d485a1a | 1 | import concurrent.futures |
19a03940 | 2 | import contextlib |
adbc4ec4 THD |
3 | import json |
4 | import math | |
95d8f7ea | 5 | import os |
ac668111 | 6 | import struct |
95d8f7ea S |
7 | import time |
8 | ||
9 | from .common import FileDownloader | |
10 | from .http import HttpFD | |
1d3586d0 | 11 | from ..aes import aes_cbc_decrypt_bytes, unpad_pkcs7 |
ac668111 | 12 | from ..compat import compat_os_name |
3d2623a8 | 13 | from ..networking import Request |
14 | from ..networking.exceptions import HTTPError, IncompleteRead | |
15 | from ..utils import DownloadError, RetryManager, encodeFilename, traverse_obj | |
16 | from ..utils.networking import HTTPHeaderDict | |
95d8f7ea S |
17 | |
18 | ||
19 | class HttpQuietDownloader(HttpFD): | |
20 | def to_screen(self, *args, **kargs): | |
21 | pass | |
22 | ||
998a3cae | 23 | to_console_title = to_screen |
1d485a1a | 24 | |
95d8f7ea S |
25 | |
26 | class FragmentFD(FileDownloader): | |
27 | """ | |
28 | A base file downloader class for fragmented media (e.g. f4m/m3u8 manifests). | |
16a8b798 S |
29 | |
30 | Available options: | |
31 | ||
46f1370e | 32 | fragment_retries: Number of times to retry a fragment for HTTP error |
33 | (DASH and hlsnative only). Default is 0 for API, but 10 for CLI | |
9603b660 S |
34 | skip_unavailable_fragments: |
35 | Skip unavailable fragments (DASH and hlsnative only) | |
0eee52f3 S |
36 | keep_fragments: Keep downloaded fragments on disk after downloading is |
37 | finished | |
59a7a13e | 38 | concurrent_fragment_downloads: The number of threads to use for native hls and dash downloads |
e8e73840 | 39 | _no_ytdl_file: Don't use .ytdl file |
290f64db | 40 | |
7a5c1cfe | 41 | For each incomplete fragment download yt-dlp keeps on disk a special |
290f64db | 42 | bookkeeping file with download state and metadata (in future such files will |
7a5c1cfe | 43 | be used for any incomplete download handled by yt-dlp). This file is |
290f64db S |
44 | used to properly handle resuming, check download file consistency and detect |
45 | potential errors. The file has a .ytdl extension and represents a standard | |
46 | JSON file of the following format: | |
47 | ||
48 | extractor: | |
49 | Dictionary of extractor related data. TBD. | |
50 | ||
51 | downloader: | |
52 | Dictionary of downloader related data. May contain following data: | |
53 | current_fragment: | |
54 | Dictionary with current (being downloaded) fragment data: | |
85f6de25 | 55 | index: 0-based index of current fragment among all fragments |
290f64db S |
56 | fragment_count: |
57 | Total count of fragments | |
50534b71 | 58 | |
85f6de25 | 59 | This feature is experimental and file format may change in future. |
95d8f7ea S |
60 | """ |
61 | ||
75a24854 | 62 | def report_retry_fragment(self, err, frag_index, count, retries): |
da4db748 | 63 | self.deprecation_warning('yt_dlp.downloader.FragmentFD.report_retry_fragment is deprecated. ' |
64 | 'Use yt_dlp.downloader.FileDownloader.report_retry instead') | |
be5c1ae8 | 65 | return self.report_retry(err, count, retries, frag_index) |
721f26b8 | 66 | |
b4b855eb | 67 | def report_skip_fragment(self, frag_index, err=None): |
68 | err = f' {err};' if err else '' | |
69 | self.to_screen(f'[download]{err} Skipping fragment {frag_index:d} ...') | |
9603b660 | 70 | |
69035555 S |
71 | def _prepare_url(self, info_dict, url): |
72 | headers = info_dict.get('http_headers') | |
3d2623a8 | 73 | return Request(url, None, headers) if headers else url |
69035555 | 74 | |
3ba7740d | 75 | def _prepare_and_start_frag_download(self, ctx, info_dict): |
95d8f7ea | 76 | self._prepare_frag_download(ctx) |
3ba7740d | 77 | self._start_frag_download(ctx, info_dict) |
95d8f7ea | 78 | |
e8e73840 | 79 | def __do_ytdl_file(self, ctx): |
adbc4ec4 | 80 | return ctx['live'] is not True and ctx['tmpfilename'] != '-' and not self.params.get('_no_ytdl_file') |
adb4b03c | 81 | |
d3f0687c | 82 | def _read_ytdl_file(self, ctx): |
500a86a5 | 83 | assert 'ytdl_corrupt' not in ctx |
205a0654 | 84 | stream, _ = self.sanitize_open(self.ytdl_filename(ctx['filename']), 'r') |
500a86a5 | 85 | try: |
4d49884c F |
86 | ytdl_data = json.loads(stream.read()) |
87 | ctx['fragment_index'] = ytdl_data['downloader']['current_fragment']['index'] | |
88 | if 'extra_state' in ytdl_data['downloader']: | |
89 | ctx['extra_state'] = ytdl_data['downloader']['extra_state'] | |
500a86a5 S |
90 | except Exception: |
91 | ctx['ytdl_corrupt'] = True | |
92 | finally: | |
93 | stream.close() | |
d3f0687c S |
94 | |
95 | def _write_ytdl_file(self, ctx): | |
205a0654 | 96 | frag_index_stream, _ = self.sanitize_open(self.ytdl_filename(ctx['filename']), 'w') |
ad3dc496 | 97 | try: |
98 | downloader = { | |
99 | 'current_fragment': { | |
100 | 'index': ctx['fragment_index'], | |
101 | }, | |
102 | } | |
103 | if 'extra_state' in ctx: | |
104 | downloader['extra_state'] = ctx['extra_state'] | |
105 | if ctx.get('fragment_count') is not None: | |
106 | downloader['fragment_count'] = ctx['fragment_count'] | |
107 | frag_index_stream.write(json.dumps({'downloader': downloader})) | |
108 | finally: | |
109 | frag_index_stream.close() | |
d3f0687c | 110 | |
273762c8 | 111 | def _download_fragment(self, ctx, frag_url, info_dict, headers=None, request_data=None): |
d3f0687c | 112 | fragment_filename = '%s-Frag%d' % (ctx['tmpfilename'], ctx['fragment_index']) |
38d70284 | 113 | fragment_info_dict = { |
75a24854 RA |
114 | 'url': frag_url, |
115 | 'http_headers': headers or info_dict.get('http_headers'), | |
273762c8 | 116 | 'request_data': request_data, |
bd50a52b | 117 | 'ctx_id': ctx.get('ctx_id'), |
38d70284 | 118 | } |
4823ec9f | 119 | frag_resume_len = 0 |
120 | if ctx['dl'].params.get('continuedl', True): | |
121 | frag_resume_len = self.filesize_or_none(self.temp_name(fragment_filename)) | |
122 | fragment_info_dict['frag_resume_len'] = ctx['frag_resume_len'] = frag_resume_len | |
123 | ||
3fe75fdc | 124 | success, _ = ctx['dl'].download(fragment_filename, fragment_info_dict) |
75a24854 | 125 | if not success: |
d71fd412 | 126 | return False |
38d70284 | 127 | if fragment_info_dict.get('filetime'): |
128 | ctx['fragment_filetime'] = fragment_info_dict.get('filetime') | |
4c7853de | 129 | ctx['fragment_filename_sanitized'] = fragment_filename |
d71fd412 | 130 | return True |
4c7853de | 131 | |
132 | def _read_fragment(self, ctx): | |
e06bd880 | 133 | if not ctx.get('fragment_filename_sanitized'): |
134 | return None | |
d71fd412 LNO |
135 | try: |
136 | down, frag_sanitized = self.sanitize_open(ctx['fragment_filename_sanitized'], 'rb') | |
137 | except FileNotFoundError: | |
138 | if ctx.get('live'): | |
139 | return None | |
140 | raise | |
d3f0687c S |
141 | ctx['fragment_filename_sanitized'] = frag_sanitized |
142 | frag_content = down.read() | |
75a24854 | 143 | down.close() |
4c7853de | 144 | return frag_content |
75a24854 RA |
145 | |
146 | def _append_fragment(self, ctx, frag_content): | |
d3f0687c S |
147 | try: |
148 | ctx['dest_stream'].write(frag_content) | |
593f2f79 | 149 | ctx['dest_stream'].flush() |
d3f0687c | 150 | finally: |
adb4b03c | 151 | if self.__do_ytdl_file(ctx): |
d3f0687c | 152 | self._write_ytdl_file(ctx) |
0eee52f3 | 153 | if not self.params.get('keep_fragments', False): |
45806d44 | 154 | self.try_remove(encodeFilename(ctx['fragment_filename_sanitized'])) |
d3f0687c | 155 | del ctx['fragment_filename_sanitized'] |
75a24854 | 156 | |
95d8f7ea | 157 | def _prepare_frag_download(self, ctx): |
4823ec9f | 158 | if not ctx.setdefault('live', False): |
5efaf43c S |
159 | total_frags_str = '%d' % ctx['total_frags'] |
160 | ad_frags = ctx.get('ad_frags', 0) | |
161 | if ad_frags: | |
162 | total_frags_str += ' (not including %d ad)' % ad_frags | |
163 | else: | |
164 | total_frags_str = 'unknown (live)' | |
86e5f3ed | 165 | self.to_screen(f'[{self.FD_NAME}] Total fragments: {total_frags_str}') |
95d8f7ea | 166 | self.report_destination(ctx['filename']) |
666c36d5 | 167 | dl = HttpQuietDownloader(self.ydl, { |
168 | **self.params, | |
169 | 'noprogress': True, | |
170 | 'test': False, | |
424f3bf0 | 171 | 'sleep_interval': 0, |
172 | 'max_sleep_interval': 0, | |
173 | 'sleep_interval_subtitles': 0, | |
666c36d5 | 174 | }) |
95d8f7ea | 175 | tmpfilename = self.temp_name(ctx['filename']) |
75a24854 | 176 | open_mode = 'wb' |
d3f0687c | 177 | |
75a24854 | 178 | # Establish possible resume length |
4823ec9f | 179 | resume_len = self.filesize_or_none(tmpfilename) |
180 | if resume_len > 0: | |
75a24854 | 181 | open_mode = 'ab' |
d3f0687c | 182 | |
adb4b03c S |
183 | # Should be initialized before ytdl file check |
184 | ctx.update({ | |
185 | 'tmpfilename': tmpfilename, | |
186 | 'fragment_index': 0, | |
187 | }) | |
d3f0687c | 188 | |
adb4b03c | 189 | if self.__do_ytdl_file(ctx): |
4823ec9f | 190 | ytdl_file_exists = os.path.isfile(encodeFilename(self.ytdl_filename(ctx['filename']))) |
191 | continuedl = self.params.get('continuedl', True) | |
192 | if continuedl and ytdl_file_exists: | |
adb4b03c | 193 | self._read_ytdl_file(ctx) |
500a86a5 S |
194 | is_corrupt = ctx.get('ytdl_corrupt') is True |
195 | is_inconsistent = ctx['fragment_index'] > 0 and resume_len == 0 | |
196 | if is_corrupt or is_inconsistent: | |
197 | message = ( | |
198 | '.ytdl file is corrupt' if is_corrupt else | |
199 | 'Inconsistent state of incomplete fragment download') | |
6f3b4a98 | 200 | self.report_warning( |
5ef7d9bd | 201 | '%s. Restarting from the beginning ...' % message) |
e7c3e334 | 202 | ctx['fragment_index'] = resume_len = 0 |
500a86a5 S |
203 | if 'ytdl_corrupt' in ctx: |
204 | del ctx['ytdl_corrupt'] | |
e7c3e334 | 205 | self._write_ytdl_file(ctx) |
4823ec9f | 206 | |
adb4b03c | 207 | else: |
4823ec9f | 208 | if not continuedl: |
209 | if ytdl_file_exists: | |
210 | self._read_ytdl_file(ctx) | |
211 | ctx['fragment_index'] = resume_len = 0 | |
adb4b03c | 212 | self._write_ytdl_file(ctx) |
e7c3e334 | 213 | assert ctx['fragment_index'] == 0 |
d3f0687c | 214 | |
205a0654 | 215 | dest_stream, tmpfilename = self.sanitize_open(tmpfilename, open_mode) |
75a24854 | 216 | |
95d8f7ea S |
217 | ctx.update({ |
218 | 'dl': dl, | |
219 | 'dest_stream': dest_stream, | |
220 | 'tmpfilename': tmpfilename, | |
75a24854 RA |
221 | # Total complete fragments downloaded so far in bytes |
222 | 'complete_frags_downloaded_bytes': resume_len, | |
95d8f7ea S |
223 | }) |
224 | ||
3ba7740d | 225 | def _start_frag_download(self, ctx, info_dict): |
3bce4ff7 | 226 | resume_len = ctx['complete_frags_downloaded_bytes'] |
95d8f7ea | 227 | total_frags = ctx['total_frags'] |
bd50a52b | 228 | ctx_id = ctx.get('ctx_id') |
95d8f7ea S |
229 | # This dict stores the download progress, it's updated by the progress |
230 | # hook | |
231 | state = { | |
232 | 'status': 'downloading', | |
3bce4ff7 | 233 | 'downloaded_bytes': resume_len, |
3e0304fe RA |
234 | 'fragment_index': ctx['fragment_index'], |
235 | 'fragment_count': total_frags, | |
95d8f7ea S |
236 | 'filename': ctx['filename'], |
237 | 'tmpfilename': ctx['tmpfilename'], | |
b83b782d S |
238 | } |
239 | ||
240 | start = time.time() | |
241 | ctx.update({ | |
242 | 'started': start, | |
bd93fd5d | 243 | 'fragment_started': start, |
709185a2 S |
244 | # Amount of fragment's bytes downloaded by the time of the previous |
245 | # frag progress hook invocation | |
b83b782d S |
246 | 'prev_frag_downloaded_bytes': 0, |
247 | }) | |
95d8f7ea S |
248 | |
249 | def frag_progress_hook(s): | |
250 | if s['status'] not in ('downloading', 'finished'): | |
251 | return | |
252 | ||
36195c44 M |
253 | if not total_frags and ctx.get('fragment_count'): |
254 | state['fragment_count'] = ctx['fragment_count'] | |
255 | ||
bd50a52b THD |
256 | if ctx_id is not None and s.get('ctx_id') != ctx_id: |
257 | return | |
258 | ||
259 | state['max_progress'] = ctx.get('max_progress') | |
260 | state['progress_idx'] = ctx.get('progress_idx') | |
261 | ||
5fa1702c | 262 | time_now = time.time() |
2c2f1efd | 263 | state['elapsed'] = time_now - start |
3c91e416 | 264 | frag_total_bytes = s.get('total_bytes') or 0 |
3ba7740d | 265 | s['fragment_info_dict'] = s.pop('info_dict', {}) |
5fa1702c S |
266 | if not ctx['live']: |
267 | estimated_size = ( | |
3089bc74 S |
268 | (ctx['complete_frags_downloaded_bytes'] + frag_total_bytes) |
269 | / (state['fragment_index'] + 1) * total_frags) | |
5fa1702c | 270 | state['total_bytes_estimate'] = estimated_size |
95d8f7ea | 271 | |
709185a2 | 272 | if s['status'] == 'finished': |
3e0304fe RA |
273 | state['fragment_index'] += 1 |
274 | ctx['fragment_index'] = state['fragment_index'] | |
b83b782d S |
275 | state['downloaded_bytes'] += frag_total_bytes - ctx['prev_frag_downloaded_bytes'] |
276 | ctx['complete_frags_downloaded_bytes'] = state['downloaded_bytes'] | |
bd93fd5d | 277 | ctx['speed'] = state['speed'] = self.calc_speed( |
278 | ctx['fragment_started'], time_now, frag_total_bytes) | |
279 | ctx['fragment_started'] = time.time() | |
b83b782d | 280 | ctx['prev_frag_downloaded_bytes'] = 0 |
709185a2 S |
281 | else: |
282 | frag_downloaded_bytes = s['downloaded_bytes'] | |
b83b782d | 283 | state['downloaded_bytes'] += frag_downloaded_bytes - ctx['prev_frag_downloaded_bytes'] |
bd93fd5d | 284 | ctx['speed'] = state['speed'] = self.calc_speed( |
edbe5b58 | 285 | ctx['fragment_started'], time_now, frag_downloaded_bytes - ctx.get('frag_resume_len', 0)) |
4823ec9f | 286 | if not ctx['live']: |
287 | state['eta'] = self.calc_eta(state['speed'], estimated_size - state['downloaded_bytes']) | |
b83b782d | 288 | ctx['prev_frag_downloaded_bytes'] = frag_downloaded_bytes |
3ba7740d | 289 | self._hook_progress(state, info_dict) |
95d8f7ea S |
290 | |
291 | ctx['dl'].add_progress_hook(frag_progress_hook) | |
292 | ||
293 | return start | |
294 | ||
3ba7740d | 295 | def _finish_frag_download(self, ctx, info_dict): |
95d8f7ea | 296 | ctx['dest_stream'].close() |
adb4b03c | 297 | if self.__do_ytdl_file(ctx): |
337734d4 | 298 | self.try_remove(self.ytdl_filename(ctx['filename'])) |
95d8f7ea | 299 | elapsed = time.time() - ctx['started'] |
0ff2c1ec | 300 | |
814bba39 | 301 | to_file = ctx['tmpfilename'] != '-' |
302 | if to_file: | |
edbe5b58 | 303 | downloaded_bytes = self.filesize_or_none(ctx['tmpfilename']) |
0ff2c1ec | 304 | else: |
814bba39 | 305 | downloaded_bytes = ctx['complete_frags_downloaded_bytes'] |
306 | ||
307 | if not downloaded_bytes: | |
308 | if to_file: | |
309 | self.try_remove(ctx['tmpfilename']) | |
310 | self.report_error('The downloaded file is empty') | |
311 | return False | |
312 | elif to_file: | |
0ff2c1ec | 313 | self.try_rename(ctx['tmpfilename'], ctx['filename']) |
814bba39 | 314 | filetime = ctx.get('fragment_filetime') |
315 | if self.params.get('updatetime', True) and filetime: | |
316 | with contextlib.suppress(Exception): | |
317 | os.utime(ctx['filename'], (time.time(), filetime)) | |
95d8f7ea S |
318 | |
319 | self._hook_progress({ | |
0ff2c1ec S |
320 | 'downloaded_bytes': downloaded_bytes, |
321 | 'total_bytes': downloaded_bytes, | |
95d8f7ea S |
322 | 'filename': ctx['filename'], |
323 | 'status': 'finished', | |
324 | 'elapsed': elapsed, | |
bd50a52b THD |
325 | 'ctx_id': ctx.get('ctx_id'), |
326 | 'max_progress': ctx.get('max_progress'), | |
327 | 'progress_idx': ctx.get('progress_idx'), | |
3ba7740d | 328 | }, info_dict) |
814bba39 | 329 | return True |
5219cb3e | 330 | |
331 | def _prepare_external_frag_download(self, ctx): | |
332 | if 'live' not in ctx: | |
333 | ctx['live'] = False | |
334 | if not ctx['live']: | |
335 | total_frags_str = '%d' % ctx['total_frags'] | |
336 | ad_frags = ctx.get('ad_frags', 0) | |
337 | if ad_frags: | |
338 | total_frags_str += ' (not including %d ad)' % ad_frags | |
339 | else: | |
340 | total_frags_str = 'unknown (live)' | |
86e5f3ed | 341 | self.to_screen(f'[{self.FD_NAME}] Total fragments: {total_frags_str}') |
5219cb3e | 342 | |
343 | tmpfilename = self.temp_name(ctx['filename']) | |
344 | ||
345 | # Should be initialized before ytdl file check | |
346 | ctx.update({ | |
347 | 'tmpfilename': tmpfilename, | |
348 | 'fragment_index': 0, | |
349 | }) | |
4c7853de | 350 | |
1009f67c | 351 | def decrypter(self, info_dict): |
352 | _key_cache = {} | |
353 | ||
354 | def _get_key(url): | |
355 | if url not in _key_cache: | |
356 | _key_cache[url] = self.ydl.urlopen(self._prepare_url(info_dict, url)).read() | |
357 | return _key_cache[url] | |
358 | ||
359 | def decrypt_fragment(fragment, frag_content): | |
be5c1ae8 | 360 | if frag_content is None: |
361 | return | |
1009f67c | 362 | decrypt_info = fragment.get('decrypt_info') |
363 | if not decrypt_info or decrypt_info['METHOD'] != 'AES-128': | |
364 | return frag_content | |
ac668111 | 365 | iv = decrypt_info.get('IV') or struct.pack('>8xq', fragment['media_sequence']) |
7e68567e | 366 | decrypt_info['KEY'] = (decrypt_info.get('KEY') |
367 | or _get_key(traverse_obj(info_dict, ('hls_aes', 'uri')) or decrypt_info['URI'])) | |
1009f67c | 368 | # Don't decrypt the content in tests since the data is explicitly truncated and it's not to a valid block |
369 | # size (see https://github.com/ytdl-org/youtube-dl/pull/27660). Tests only care that the correct data downloaded, | |
370 | # not what it decrypts to. | |
371 | if self.params.get('test', False): | |
372 | return frag_content | |
1d3586d0 | 373 | return unpad_pkcs7(aes_cbc_decrypt_bytes(frag_content, decrypt_info['KEY'], iv)) |
1009f67c | 374 | |
375 | return decrypt_fragment | |
376 | ||
814bba39 | 377 | def download_and_append_fragments_multiple(self, *args, **kwargs): |
bd50a52b THD |
378 | ''' |
379 | @params (ctx1, fragments1, info_dict1), (ctx2, fragments2, info_dict2), ... | |
380 | all args must be either tuple or list | |
381 | ''' | |
adbc4ec4 | 382 | interrupt_trigger = [True] |
bd50a52b THD |
383 | max_progress = len(args) |
384 | if max_progress == 1: | |
814bba39 | 385 | return self.download_and_append_fragments(*args[0], **kwargs) |
adbc4ec4 | 386 | max_workers = self.params.get('concurrent_fragment_downloads', 1) |
49a57e70 | 387 | if max_progress > 1: |
388 | self._prepare_multiline_status(max_progress) | |
6839ae1f | 389 | is_live = any(traverse_obj(args, (..., 2, 'is_live'))) |
bd50a52b THD |
390 | |
391 | def thread_func(idx, ctx, fragments, info_dict, tpe): | |
392 | ctx['max_progress'] = max_progress | |
393 | ctx['progress_idx'] = idx | |
adbc4ec4 | 394 | return self.download_and_append_fragments( |
814bba39 | 395 | ctx, fragments, info_dict, **kwargs, tpe=tpe, interrupt_trigger=interrupt_trigger) |
bd50a52b THD |
396 | |
397 | class FTPE(concurrent.futures.ThreadPoolExecutor): | |
398 | # has to stop this or it's going to wait on the worker thread itself | |
399 | def __exit__(self, exc_type, exc_val, exc_tb): | |
400 | pass | |
401 | ||
adbc4ec4 | 402 | if compat_os_name == 'nt': |
a44ca5a4 | 403 | def future_result(future): |
a539f065 LNO |
404 | while True: |
405 | try: | |
406 | return future.result(0.1) | |
407 | except KeyboardInterrupt: | |
408 | raise | |
409 | except concurrent.futures.TimeoutError: | |
410 | continue | |
411 | else: | |
a44ca5a4 | 412 | def future_result(future): |
a539f065 LNO |
413 | return future.result() |
414 | ||
f0734e11 L |
415 | def interrupt_trigger_iter(fg): |
416 | for f in fg: | |
417 | if not interrupt_trigger[0]: | |
418 | break | |
419 | yield f | |
420 | ||
a539f065 | 421 | spins = [] |
bd50a52b | 422 | for idx, (ctx, fragments, info_dict) in enumerate(args): |
adbc4ec4 | 423 | tpe = FTPE(math.ceil(max_workers / max_progress)) |
f0734e11 | 424 | job = tpe.submit(thread_func, idx, ctx, interrupt_trigger_iter(fragments), info_dict, tpe) |
bd50a52b THD |
425 | spins.append((tpe, job)) |
426 | ||
427 | result = True | |
428 | for tpe, job in spins: | |
429 | try: | |
a44ca5a4 | 430 | result = result and future_result(job) |
adbc4ec4 THD |
431 | except KeyboardInterrupt: |
432 | interrupt_trigger[0] = False | |
bd50a52b THD |
433 | finally: |
434 | tpe.shutdown(wait=True) | |
a539f065 | 435 | if not interrupt_trigger[0] and not is_live: |
adbc4ec4 | 436 | raise KeyboardInterrupt() |
a539f065 LNO |
437 | # we expect the user wants to stop and DO WANT the preceding postprocessors to run; |
438 | # so returning a intermediate result here instead of KeyboardInterrupt on live | |
819e0531 | 439 | return result |
bd50a52b | 440 | |
adbc4ec4 | 441 | def download_and_append_fragments( |
814bba39 | 442 | self, ctx, fragments, info_dict, *, is_fatal=(lambda idx: False), |
443 | pack_func=(lambda content, idx: content), finish_func=None, | |
444 | tpe=None, interrupt_trigger=(True, )): | |
adbc4ec4 | 445 | |
814bba39 | 446 | if not self.params.get('skip_unavailable_fragments', True): |
447 | is_fatal = lambda _: True | |
4c7853de | 448 | |
449 | def download_fragment(fragment, ctx): | |
a539f065 | 450 | if not interrupt_trigger[0]: |
d71fd412 | 451 | return |
a539f065 | 452 | |
4c7853de | 453 | frag_index = ctx['fragment_index'] = fragment['frag_index'] |
185bf310 | 454 | ctx['last_error'] = None |
3d2623a8 | 455 | headers = HTTPHeaderDict(info_dict.get('http_headers')) |
4c7853de | 456 | byte_range = fragment.get('byte_range') |
457 | if byte_range: | |
458 | headers['Range'] = 'bytes=%d-%d' % (byte_range['start'], byte_range['end'] - 1) | |
459 | ||
460 | # Never skip the first fragment | |
be5c1ae8 | 461 | fatal = is_fatal(fragment.get('index') or (frag_index - 1)) |
462 | ||
463 | def error_callback(err, count, retries): | |
464 | if fatal and count > retries: | |
465 | ctx['dest_stream'].close() | |
466 | self.report_retry(err, count, retries, frag_index, fatal) | |
467 | ctx['last_error'] = err | |
468 | ||
469 | for retry in RetryManager(self.params.get('fragment_retries'), error_callback): | |
4c7853de | 470 | try: |
36195c44 | 471 | ctx['fragment_count'] = fragment.get('fragment_count') |
f34804b2 | 472 | if not self._download_fragment( |
473 | ctx, fragment['url'], info_dict, headers, info_dict.get('request_data')): | |
be5c1ae8 | 474 | return |
3d2623a8 | 475 | except (HTTPError, IncompleteRead) as err: |
be5c1ae8 | 476 | retry.error = err |
477 | continue | |
478 | except DownloadError: # has own retry settings | |
479 | if fatal: | |
480 | raise | |
4c7853de | 481 | |
4c7853de | 482 | def append_fragment(frag_content, frag_index, ctx): |
a44ca5a4 | 483 | if frag_content: |
484 | self._append_fragment(ctx, pack_func(frag_content, frag_index)) | |
485 | elif not is_fatal(frag_index - 1): | |
486 | self.report_skip_fragment(frag_index, 'fragment not found') | |
487 | else: | |
488 | ctx['dest_stream'].close() | |
489 | self.report_error(f'fragment {frag_index} not found, unable to continue') | |
490 | return False | |
4c7853de | 491 | return True |
492 | ||
1009f67c | 493 | decrypt_fragment = self.decrypter(info_dict) |
494 | ||
adbc4ec4 THD |
495 | max_workers = math.ceil( |
496 | self.params.get('concurrent_fragment_downloads', 1) / ctx.get('max_progress', 1)) | |
1d485a1a | 497 | if max_workers > 1: |
4c7853de | 498 | def _download_fragment(fragment): |
723d44b9 | 499 | ctx_copy = ctx.copy() |
d71fd412 LNO |
500 | download_fragment(fragment, ctx_copy) |
501 | return fragment, fragment['frag_index'], ctx_copy.get('fragment_filename_sanitized') | |
4c7853de | 502 | |
5b28cef7 | 503 | self.report_warning('The download speed shown is only of one thread. This is a known issue') |
bd50a52b | 504 | with tpe or concurrent.futures.ThreadPoolExecutor(max_workers) as pool: |
1890fc63 | 505 | try: |
506 | for fragment, frag_index, frag_filename in pool.map(_download_fragment, fragments): | |
507 | ctx.update({ | |
508 | 'fragment_filename_sanitized': frag_filename, | |
509 | 'fragment_index': frag_index, | |
510 | }) | |
511 | if not append_fragment(decrypt_fragment(fragment, self._read_fragment(ctx)), frag_index, ctx): | |
512 | return False | |
513 | except KeyboardInterrupt: | |
514 | self._finish_multiline_status() | |
515 | self.report_error( | |
516 | 'Interrupted by user. Waiting for all threads to shutdown...', is_error=False, tb=False) | |
517 | pool.shutdown(wait=False) | |
518 | raise | |
4c7853de | 519 | else: |
520 | for fragment in fragments: | |
adbc4ec4 THD |
521 | if not interrupt_trigger[0]: |
522 | break | |
c854208c LNO |
523 | try: |
524 | download_fragment(fragment, ctx) | |
19a03940 | 525 | result = append_fragment( |
526 | decrypt_fragment(fragment, self._read_fragment(ctx)), fragment['frag_index'], ctx) | |
c854208c LNO |
527 | except KeyboardInterrupt: |
528 | if info_dict.get('is_live'): | |
529 | break | |
530 | raise | |
4c7853de | 531 | if not result: |
532 | return False | |
533 | ||
25a3f4f5 F |
534 | if finish_func is not None: |
535 | ctx['dest_stream'].write(finish_func()) | |
536 | ctx['dest_stream'].flush() | |
814bba39 | 537 | return self._finish_frag_download(ctx, info_dict) |