[devscripts/cli_to_api] Add script

devscripts/cli_to_api.py

@@ -0,0 +1,48 @@
+# Allow direct execution
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import yt_dlp
+import yt_dlp.options
+
+create_parser = yt_dlp.options.create_parser
+
+
+def parse_patched_options(opts):
+    patched_parser = create_parser()
+    patched_parser.defaults.update({
+        'ignoreerrors': False,
+        'retries': 0,
+        'fragment_retries': 0,
+        'extract_flat': False,
+        'concat_playlist': 'never',
+    })
+    yt_dlp.options.__dict__['create_parser'] = lambda: patched_parser
+    try:
+        return yt_dlp.parse_options(opts)
+    finally:
+        yt_dlp.options.__dict__['create_parser'] = create_parser
+
+
+default_opts = parse_patched_options([]).ydl_opts
+
+
+def cli_to_api(opts, cli_defaults=False):
+    opts = (yt_dlp.parse_options if cli_defaults else parse_patched_options)(opts).ydl_opts
+
+    diff = {k: v for k, v in opts.items() if default_opts[k] != v}
+    if 'postprocessors' in diff:
+        diff['postprocessors'] = [pp for pp in diff['postprocessors']
+                                  if pp not in default_opts['postprocessors']]
+    return diff
+
+
+if __name__ == '__main__':
+    from pprint import pprint
+
+    print('\nThe arguments passed translate to:\n')
+    pprint(cli_to_api(sys.argv[1:]))
+    print('\nCombining these with the CLI defaults gives:\n')
+    pprint(cli_to_api(sys.argv[1:], True))

yt_dlp/YoutubeDL.py

@@ -280,7 +280,7 @@ class YoutubeDL:
                        subtitles. The language can be prefixed with a "-" to
                        exclude it from the requested languages, e.g. ['all', '-live_chat']
     keepvideo:         Keep the video file after post-processing
-    daterange:         A DateRange object, download only if the upload_date is in the range.
+    daterange:         A utils.DateRange object, download only if the upload_date is in the range.
     skip_download:     Skip the actual download of the video file
     cachedir:          Location of the cache files in the filesystem.
                        False to disable filesystem cache.
@@ -329,13 +329,13 @@ class YoutubeDL:
                        'auto' for elaborate guessing
     encoding:          Use this encoding instead of the system-specified.
     extract_flat:      Whether to resolve and process url_results further
-                       * False:     Always process (default)
+                       * False:     Always process. Default for API
                        * True:      Never process
                        * 'in_playlist': Do not process inside playlist/multi_video
                        * 'discard': Always process, but don't return the result
                                     from inside playlist/multi_video
                        * 'discard_in_playlist': Same as "discard", but only for
-                                    playlists (not multi_video)
+                                    playlists (not multi_video). Default for CLI
     wait_for_video:    If given, wait for scheduled streams to become available.
                        The value should be a tuple containing the range
                        (min_secs, max_secs) to wait between retries
@@ -472,7 +472,7 @@ class YoutubeDL:
                        can also be used
 
     The following options are used by the extractors:
-    extractor_retries: Number of times to retry for known errors
+    extractor_retries: Number of times to retry for known errors (default: 3)
     dynamic_mpd:       Whether to process dynamic DASH manifests (default: True)
     hls_split_discontinuity: Split HLS playlists to different formats at
                        discontinuities such as ad breaks (default: False)

yt_dlp/downloader/common.py

@@ -51,8 +51,9 @@ class FileDownloader:
     ratelimit:          Download speed limit, in bytes/sec.
     continuedl:         Attempt to continue downloads if possible
     throttledratelimit: Assume the download is being throttled below this speed (bytes/sec)
-    retries:            Number of times to retry for HTTP error 5xx
+    retries:            Number of times to retry for expected network errors.
-    file_access_retries:   Number of times to retry on file access error
+                        Default is 0 for API, but 10 for CLI
+    file_access_retries:   Number of times to retry on file access error (default: 3)
     buffersize:         Size of download buffer in bytes.
     noresizebuffer:     Do not automatically resize the download buffer.
     continuedl:         Try to continue downloads if possible.
@@ -225,7 +226,7 @@ class FileDownloader:
                 sleep_func=fd.params.get('retry_sleep_functions', {}).get('file_access'))
 
         def wrapper(self, func, *args, **kwargs):
-            for retry in RetryManager(self.params.get('file_access_retries'), error_callback, fd=self):
+            for retry in RetryManager(self.params.get('file_access_retries', 3), error_callback, fd=self):
                 try:
                     return func(self, *args, **kwargs)
                 except OSError as err:

yt_dlp/downloader/fragment.py

@@ -34,8 +34,8 @@ class FragmentFD(FileDownloader):
 
     Available options:
 
-    fragment_retries:   Number of times to retry a fragment for HTTP error (DASH
+    fragment_retries:   Number of times to retry a fragment for HTTP error
-                        and hlsnative only)
+                        (DASH and hlsnative only). Default is 0 for API, but 10 for CLI
     skip_unavailable_fragments:
                         Skip unavailable fragments (DASH and hlsnative only)
     keep_fragments:     Keep downloaded fragments on disk after downloading is

yt_dlp/utils/_utils.py

@@ -60,6 +60,8 @@ from ..compat import (
 from ..dependencies import brotli, certifi, websockets, xattr
 from ..socks import ProxyType, sockssocket
 
+__name__ = __name__.rsplit('.', 1)[0]  # Pretend to be the parent module
+
 # This is not clearly defined otherwise
 compiled_regex_type = type(re.compile(''))
 
@@ -1957,8 +1959,8 @@ class DateRange:
             date = date_from_str(date)
         return self.start <= date <= self.end
 
-    def __str__(self):
+    def __repr__(self):
-        return f'{self.start.isoformat()} - {self.end.isoformat()}'
+        return f'{__name__}.{type(self).__name__}({self.start.isoformat()!r}, {self.end.isoformat()!r})'
 
     def __eq__(self, other):
         return (isinstance(other, DateRange)