Merge branch 'master' into rtmpdump
[youtube-dl] / youtube_dl / YoutubeDL.py
index c8054544a60db20f041d22c5ee6e5405d935061a..20eed96caf6dbb824973a1ba7566d5131a5f4334 100644 (file)
@@ -13,7 +13,34 @@ import sys
 import time
 import traceback
 
-from .utils import *
+if os.name == 'nt':
+    import ctypes
+
+from .utils import (
+    compat_http_client,
+    compat_print,
+    compat_str,
+    compat_urllib_error,
+    compat_urllib_request,
+    ContentTooShortError,
+    date_from_str,
+    DateRange,
+    determine_ext,
+    DownloadError,
+    encodeFilename,
+    ExtractorError,
+    locked_file,
+    MaxDownloadsReached,
+    PostProcessingError,
+    preferredencoding,
+    SameFileError,
+    sanitize_filename,
+    subtitles_filename,
+    takewhile_inclusive,
+    UnavailableVideoError,
+    write_json_file,
+    write_string,
+)
 from .extractor import get_info_extractor, gen_extractors
 from .FileDownloader import FileDownloader
 
@@ -91,7 +118,7 @@ class YoutubeDL(object):
     downloadarchive:   File name of a file where all downloads are recorded.
                        Videos already present in the file are not downloaded
                        again.
-    
+
     The following parameters are not used by YoutubeDL itself, they are used by
     the FileDownloader:
     nopart, updatetime, buffersize, ratelimit, min_filesize, max_filesize, test,
@@ -176,6 +203,35 @@ class YoutubeDL(object):
             output = output.encode(preferredencoding())
         sys.stderr.write(output)
 
+    def to_console_title(self, message):
+        if not self.params.get('consoletitle', False):
+            return
+        if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
+            # c_wchar_p() might not be necessary if `message` is
+            # already of type unicode()
+            ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
+        elif 'TERM' in os.environ:
+            write_string(u'\033]0;%s\007' % message, self._screen_file)
+
+    def save_console_title(self):
+        if not self.params.get('consoletitle', False):
+            return
+        if 'TERM' in os.environ:
+            write_string(u'\033[22t', self._screen_file)
+
+    def restore_console_title(self):
+        if not self.params.get('consoletitle', False):
+            return
+        if 'TERM' in os.environ:
+            write_string(u'\033[23t', self._screen_file)
+
+    def __enter__(self):
+        self.save_console_title()
+        return self
+
+    def __exit__(self, *args):
+        self.restore_console_title()
+
     def fixed_template(self):
         """Checks if the output template is fixed."""
         return (re.search(u'(?u)%\\(.+?\\)s', self.params['outtmpl']) is None)
@@ -216,10 +272,10 @@ class YoutubeDL(object):
         If stderr is a tty file the 'WARNING:' will be colored
         '''
         if sys.stderr.isatty() and os.name != 'nt':
-            _msg_header=u'\033[0;33mWARNING:\033[0m'
+            _msg_header = u'\033[0;33mWARNING:\033[0m'
         else:
-            _msg_header=u'WARNING:'
-        warning_message=u'%s %s' % (_msg_header,message)
+            _msg_header = u'WARNING:'
+        warning_message = u'%s %s' % (_msg_header, message)
         self.to_stderr(warning_message)
 
     def report_error(self, message, tb=None):
@@ -234,19 +290,6 @@ class YoutubeDL(object):
         error_message = u'%s %s' % (_msg_header, message)
         self.trouble(error_message, tb)
 
-    def slow_down(self, start_time, byte_counter):
-        """Sleep if the download speed is over the rate limit."""
-        rate_limit = self.params.get('ratelimit', None)
-        if rate_limit is None or byte_counter == 0:
-            return
-        now = time.time()
-        elapsed = now - start_time
-        if elapsed <= 0.0:
-            return
-        speed = float(byte_counter) / elapsed
-        if speed > rate_limit:
-            time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit)
-
     def report_writedescription(self, descfn):
         """ Report that the description file is being written """
         self.to_screen(u'[info] Writing video description to: ' + descfn)
@@ -267,7 +310,7 @@ class YoutubeDL(object):
         """Report file has already been fully downloaded."""
         try:
             self.to_screen(u'[download] %s has already been downloaded' % file_name)
-        except (UnicodeEncodeError) as err:
+        except UnicodeEncodeError:
             self.to_screen(u'[download] The file has already been downloaded')
 
     def increment_downloads(self):
@@ -285,16 +328,18 @@ class YoutubeDL(object):
                 autonumber_size = 5
             autonumber_templ = u'%0' + str(autonumber_size) + u'd'
             template_dict['autonumber'] = autonumber_templ % self._num_downloads
-            if template_dict['playlist_index'] is not None:
+            if template_dict.get('playlist_index') is not None:
                 template_dict['playlist_index'] = u'%05d' % template_dict['playlist_index']
 
-            sanitize = lambda k,v: sanitize_filename(
+            sanitize = lambda k, v: sanitize_filename(
                 u'NA' if v is None else compat_str(v),
                 restricted=self.params.get('restrictfilenames'),
-                is_id=(k==u'id'))
-            template_dict = dict((k, sanitize(k, v)) for k,v in template_dict.items())
+                is_id=(k == u'id'))
+            template_dict = dict((k, sanitize(k, v))
+                                 for k, v in template_dict.items())
 
-            filename = self.params['outtmpl'] % template_dict
+            tmpl = os.path.expanduser(self.params['outtmpl'])
+            filename = tmpl % template_dict
             return filename
         except KeyError as err:
             self.report_error(u'Erroneous output template')
@@ -328,14 +373,20 @@ class YoutubeDL(object):
             return (u'%(title)s has already been recorded in archive'
                     % info_dict)
         return None
-        
+
+    @staticmethod
+    def add_extra_info(info_dict, extra_info):
+        '''Set the keys from extra_info in info dict if they are missing'''
+        for key, value in extra_info.items():
+            info_dict.setdefault(key, value)
+
     def extract_info(self, url, download=True, ie_key=None, extra_info={}):
         '''
         Returns a list with a dictionary for each video we find.
         If 'download', also downloads the videos.
         extra_info is a dict containing the extra values to add to each result
          '''
-        
+
         if ie_key:
             ies = [self.get_info_extractor(ie_key)]
         else:
@@ -355,17 +406,17 @@ class YoutubeDL(object):
                     break
                 if isinstance(ie_result, list):
                     # Backwards compatibility: old IE result format
-                    for result in ie_result:
-                        result.update(extra_info)
                     ie_result = {
                         '_type': 'compat_list',
                         'entries': ie_result,
                     }
-                else:
-                    ie_result.update(extra_info)
-                if 'extractor' not in ie_result:
-                    ie_result['extractor'] = ie.IE_NAME
-                return self.process_ie_result(ie_result, download=download)
+                self.add_extra_info(ie_result,
+                    {
+                        'extractor': ie.IE_NAME,
+                        'webpage_url': url,
+                        'extractor_key': ie.ie_key(),
+                    })
+                return self.process_ie_result(ie_result, download, extra_info)
             except ExtractorError as de: # An error we somewhat expected
                 self.report_error(compat_str(de), de.format_traceback())
                 break
@@ -377,7 +428,7 @@ class YoutubeDL(object):
                     raise
         else:
             self.report_error(u'no suitable InfoExtractor: %s' % url)
-        
+
     def process_ie_result(self, ie_result, download=True, extra_info={}):
         """
         Take the result of the ie(may be modified) and resolve all unresolved
@@ -389,14 +440,8 @@ class YoutubeDL(object):
 
         result_type = ie_result.get('_type', 'video') # If not given we suppose it's a video, support the default old system
         if result_type == 'video':
-            ie_result.update(extra_info)
-            if 'playlist' not in ie_result:
-                # It isn't part of a playlist
-                ie_result['playlist'] = None
-                ie_result['playlist_index'] = None
-            if download:
-                self.process_info(ie_result)
-            return ie_result
+            self.add_extra_info(ie_result, extra_info)
+            return self.process_video_result(ie_result, download=download)
         elif result_type == 'url':
             # We have to add extra_info to the results because it may be
             # contained in a playlist
@@ -405,9 +450,10 @@ class YoutubeDL(object):
                                      ie_key=ie_result.get('ie_key'),
                                      extra_info=extra_info)
         elif result_type == 'playlist':
+            self.add_extra_info(ie_result, extra_info)
             # We process each entry in the playlist
             playlist = ie_result.get('title', None) or ie_result.get('id', None)
-            self.to_screen(u'[download] Downloading playlist: %s'  % playlist)
+            self.to_screen(u'[download] Downloading playlist: %s' % playlist)
 
             playlist_results = []
 
@@ -425,17 +471,15 @@ class YoutubeDL(object):
             self.to_screen(u"[%s] playlist '%s': Collected %d video ids (downloading %d of them)" %
                 (ie_result['extractor'], playlist, n_all_entries, n_entries))
 
-            for i,entry in enumerate(entries,1):
-                self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_entries))
+            for i, entry in enumerate(entries, 1):
+                self.to_screen(u'[download] Downloading video #%s of %s' % (i, n_entries))
                 extra = {
-                         'playlist': playlist, 
-                         'playlist_index': i + playliststart,
-                         }
-                if not 'extractor' in entry:
-                    # We set the extractor, if it's an url it will be set then to
-                    # the new extractor, but if it's already a video we must make
-                    # sure it's present: see issue #877
-                    entry['extractor'] = ie_result['extractor']
+                    'playlist': playlist,
+                    'playlist_index': i + playliststart,
+                    'extractor': ie_result['extractor'],
+                    'webpage_url': ie_result['webpage_url'],
+                    'extractor_key': ie_result['extractor_key'],
+                }
                 entry_result = self.process_ie_result(entry,
                                                       download=download,
                                                       extra_info=extra)
@@ -444,16 +488,122 @@ class YoutubeDL(object):
             return ie_result
         elif result_type == 'compat_list':
             def _fixup(r):
-                r.setdefault('extractor', ie_result['extractor'])
+                self.add_extra_info(r,
+                    {
+                        'extractor': ie_result['extractor'],
+                        'webpage_url': ie_result['webpage_url'],
+                        'extractor_key': ie_result['extractor_key'],
+                    })
                 return r
             ie_result['entries'] = [
-                self.process_ie_result(_fixup(r), download=download)
+                self.process_ie_result(_fixup(r), download, extra_info)
                 for r in ie_result['entries']
             ]
             return ie_result
         else:
             raise Exception('Invalid result type: %s' % result_type)
 
+    def select_format(self, format_spec, available_formats):
+        if format_spec == 'best' or format_spec is None:
+            return available_formats[-1]
+        elif format_spec == 'worst':
+            return available_formats[0]
+        else:
+            extensions = [u'mp4', u'flv', u'webm', u'3gp']
+            if format_spec in extensions:
+                filter_f = lambda f: f['ext'] == format_spec
+            else:
+                filter_f = lambda f: f['format_id'] == format_spec
+            matches = list(filter(filter_f, available_formats))
+            if matches:
+                return matches[-1]
+        return None
+
+    def process_video_result(self, info_dict, download=True):
+        assert info_dict.get('_type', 'video') == 'video'
+
+        if 'playlist' not in info_dict:
+            # It isn't part of a playlist
+            info_dict['playlist'] = None
+            info_dict['playlist_index'] = None
+
+        # This extractors handle format selection themselves
+        if info_dict['extractor'] in [u'youtube', u'Youku']:
+            if download:
+                self.process_info(info_dict)
+            return info_dict
+
+        # We now pick which formats have to be downloaded
+        if info_dict.get('formats') is None:
+            # There's only one format available
+            formats = [info_dict]
+        else:
+            formats = info_dict['formats']
+
+        # We check that all the formats have the format and format_id fields
+        for (i, format) in enumerate(formats):
+            if format.get('format_id') is None:
+                format['format_id'] = compat_str(i)
+            if format.get('format') is None:
+                format['format'] = u'{id} - {res}{note}'.format(
+                    id=format['format_id'],
+                    res=self.format_resolution(format),
+                    note=u' ({0})'.format(format['format_note']) if format.get('format_note') is not None else '',
+                )
+            # Automatically determine file extension if missing
+            if 'ext' not in format:
+                format['ext'] = determine_ext(format['url'])
+
+        if self.params.get('listformats', None):
+            self.list_formats(info_dict)
+            return
+
+        format_limit = self.params.get('format_limit', None)
+        if format_limit:
+            formats = list(takewhile_inclusive(
+                lambda f: f['format_id'] != format_limit, formats
+            ))
+        if self.params.get('prefer_free_formats'):
+            def _free_formats_key(f):
+                try:
+                    ext_ord = [u'flv', u'mp4', u'webm'].index(f['ext'])
+                except ValueError:
+                    ext_ord = -1
+                # We only compare the extension if they have the same height and width
+                return (f.get('height'), f.get('width'), ext_ord)
+            formats = sorted(formats, key=_free_formats_key)
+
+        req_format = self.params.get('format', 'best')
+        if req_format is None:
+            req_format = 'best'
+        formats_to_download = []
+        # The -1 is for supporting YoutubeIE
+        if req_format in ('-1', 'all'):
+            formats_to_download = formats
+        else:
+            # We can accept formats requestd in the format: 34/5/best, we pick
+            # the first that is available, starting from left
+            req_formats = req_format.split('/')
+            for rf in req_formats:
+                selected_format = self.select_format(rf, formats)
+                if selected_format is not None:
+                    formats_to_download = [selected_format]
+                    break
+        if not formats_to_download:
+            raise ExtractorError(u'requested format not available',
+                                 expected=True)
+
+        if download:
+            if len(formats_to_download) > 1:
+                self.to_screen(u'[info] %s: downloading video in %s formats' % (info_dict['id'], len(formats_to_download)))
+            for format in formats_to_download:
+                new_info = dict(info_dict)
+                new_info.update(format)
+                self.process_info(new_info)
+        # We update the info dict with the best quality format (backwards compatibility)
+        info_dict.update(formats_to_download[-1])
+        return info_dict
+
     def process_info(self, info_dict):
         """Process a single resolved IE result."""
 
@@ -491,9 +641,9 @@ class YoutubeDL(object):
         if self.params.get('forceurl', False):
             # For RTMP URLs, also include the playpath
             compat_print(info_dict['url'] + info_dict.get('play_path', u''))
-        if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
+        if self.params.get('forcethumbnail', False) and info_dict.get('thumbnail') is not None:
             compat_print(info_dict['thumbnail'])
-        if self.params.get('forcedescription', False) and 'description' in info_dict:
+        if self.params.get('forcedescription', False) and info_dict.get('description') is not None:
             compat_print(info_dict['description'])
         if self.params.get('forcefilename', False) and filename is not None:
             compat_print(filename)
@@ -529,24 +679,24 @@ class YoutubeDL(object):
 
         if self.params.get('writeannotations', False):
             try:
-               annofn = filename + u'.annotations.xml'
-               self.report_writeannotations(annofn)
-               with io.open(encodeFilename(annofn), 'w', encoding='utf-8') as annofile:
-                   annofile.write(info_dict['annotations'])
+                annofn = filename + u'.annotations.xml'
+                self.report_writeannotations(annofn)
+                with io.open(encodeFilename(annofn), 'w', encoding='utf-8') as annofile:
+                    annofile.write(info_dict['annotations'])
             except (KeyError, TypeError):
                 self.report_warning(u'There are no annotations to write.')
             except (OSError, IOError):
-                 self.report_error(u'Cannot write annotations file: ' + annofn)
-                 return
+                self.report_error(u'Cannot write annotations file: ' + annofn)
+                return
 
         subtitles_are_requested = any([self.params.get('writesubtitles', False),
                                        self.params.get('writeautomaticsub')])
 
-        if  subtitles_are_requested and 'subtitles' in info_dict and info_dict['subtitles']:
+        if subtitles_are_requested and 'subtitles' in info_dict and info_dict['subtitles']:
             # subtitles download errors are already managed as troubles in relevant IE
             # that way it will silently go on when used with unsupporting IE
             subtitles = info_dict['subtitles']
-            sub_format = self.params.get('subtitlesformat')
+            sub_format = self.params.get('subtitlesformat', 'srt')
             for sub_lang in subtitles.keys():
                 sub = subtitles[sub_lang]
                 if sub is None:
@@ -564,7 +714,7 @@ class YoutubeDL(object):
             infofn = filename + u'.info.json'
             self.report_writeinfojson(infofn)
             try:
-                json_info_dict = dict((k, v) for k,v in info_dict.items() if not k in ['urlhandle'])
+                json_info_dict = dict((k, v) for k, v in info_dict.items() if not k in ['urlhandle'])
                 write_json_file(json_info_dict, encodeFilename(infofn))
             except (OSError, IOError):
                 self.report_error(u'Cannot write metadata to JSON file ' + infofn)
@@ -634,7 +784,7 @@ class YoutubeDL(object):
         keep_video = None
         for pp in self._pps:
             try:
-                keep_video_wish,new_info = pp.run(info)
+                keep_video_wish, new_info = pp.run(info)
                 if keep_video_wish is not None:
                     if keep_video_wish:
                         keep_video = keep_video_wish
@@ -672,3 +822,60 @@ class YoutubeDL(object):
         vid_id = info_dict['extractor'] + u' ' + info_dict['id']
         with locked_file(fn, 'a', encoding='utf-8') as archive_file:
             archive_file.write(vid_id + u'\n')
+
+    @staticmethod
+    def format_resolution(format, default='unknown'):
+        if format.get('_resolution') is not None:
+            return format['_resolution']
+        if format.get('height') is not None:
+            if format.get('width') is not None:
+                res = u'%sx%s' % (format['width'], format['height'])
+            else:
+                res = u'%sp' % format['height']
+        else:
+            res = default
+        return res
+
+    def list_formats(self, info_dict):
+        def format_note(fdict):
+            if fdict.get('format_note') is not None:
+                return fdict['format_note']
+            res = u''
+            if fdict.get('vcodec') is not None:
+                res += u'%-5s' % fdict['vcodec']
+            elif fdict.get('vbr') is not None:
+                res += u'video'
+            if fdict.get('vbr') is not None:
+                res += u'@%4dk' % fdict['vbr']
+            if fdict.get('acodec') is not None:
+                if res:
+                    res += u', '
+                res += u'%-5s' % fdict['acodec']
+            elif fdict.get('abr') is not None:
+                if res:
+                    res += u', '
+                res += 'audio'
+            if fdict.get('abr') is not None:
+                res += u'@%3dk' % fdict['abr']
+            return res
+
+        def line(format):
+            return (u'%-20s%-10s%-12s%s' % (
+                format['format_id'],
+                format['ext'],
+                self.format_resolution(format),
+                format_note(format),
+                )
+            )
+
+        formats = info_dict.get('formats', [info_dict])
+        formats_s = list(map(line, formats))
+        if len(formats) > 1:
+            formats_s[0] += (' ' if format_note(formats[0]) else '') + '(worst)'
+            formats_s[-1] += (' ' if format_note(formats[-1]) else '') + '(best)'
+
+        header_line = line({
+            'format_id': u'format code', 'ext': u'extension',
+            '_resolution': u'resolution', 'format_note': u'note'})
+        self.to_screen(u'[info] Available formats for %s:\n%s\n%s' %
+                       (info_dict['id'], header_line, u"\n".join(formats_s)))