Imported Upstream version 2014.12.01

[youtubedl] / youtube_dl / downloader / f4m.py

diff --git a/youtube_dl/downloader/f4m.py b/youtube_dl/downloader/f4m.py
index 2a870a758fa32dd475eaf725f69dedbf3c45903b..7cd22c504e463ad2551692728bd3933e8bcf20ab 100644 (file)
--- a/youtube_dl/downloader/f4m.py
+++ b/youtube_dl/downloader/f4m.py
@@ -12,11 +12,11 @@ from .http import HttpFD
 from ..utils import (
     struct_pack,
     struct_unpack,
-    compat_urllib_request,
     compat_urlparse,
     format_bytes,
     encodeFilename,
     sanitize_open,
+    xpath_text,
 )
 
 
@@ -55,7 +55,7 @@ class FlvReader(io.BytesIO):
         if size == 1:
             real_size = self.read_unsigned_long_long()
             header_end = 16
-        return real_size, box_type, self.read(real_size-header_end)
+        return real_size, box_type, self.read(real_size - header_end)
 
     def read_asrt(self):
         # version
@@ -117,8 +117,8 @@ class FlvReader(io.BytesIO):
         self.read_unsigned_char()
         # flags
         self.read(3)
-        # BootstrapinfoVersion
-        bootstrap_info_version = self.read_unsigned_int()
+
+        self.read_unsigned_int()  # BootstrapinfoVersion
         # Profile,Live,Update,Reserved
         self.read(1)
         # time scale
@@ -127,15 +127,15 @@ class FlvReader(io.BytesIO):
         self.read_unsigned_long_long()
         # SmpteTimeCodeOffset
         self.read_unsigned_long_long()
-        # MovieIdentifier
-        movie_identifier = self.read_string()
+
+        self.read_string()  # MovieIdentifier
         server_count = self.read_unsigned_char()
         # ServerEntryTable
         for i in range(server_count):
             self.read_string()
         quality_count = self.read_unsigned_char()
         # QualityEntryTable
-        for i in range(server_count):
+        for i in range(quality_count):
             self.read_string()
         # DrmData
         self.read_string()
@@ -180,7 +180,7 @@ def build_fragments_list(boot_info):
     n_frags = segment_run_entry[1]
     fragment_run_entry_table = boot_info['fragments'][0]['fragments']
     first_frag_number = fragment_run_entry_table[0]['first']
-    for (i, frag_number) in zip(range(1, n_frags+1), itertools.count(first_frag_number)):
+    for (i, frag_number) in zip(range(1, n_frags + 1), itertools.count(first_frag_number)):
         res.append((1, frag_number))
     return res
 
@@ -221,30 +221,48 @@ class F4mFD(FileDownloader):
 
     def real_download(self, filename, info_dict):
         man_url = info_dict['url']
+        requested_bitrate = info_dict.get('tbr')
         self.to_screen('[download] Downloading f4m manifest')
         manifest = self.ydl.urlopen(man_url).read()
         self.report_destination(filename)
-        http_dl = HttpQuietDownloader(self.ydl,
+        http_dl = HttpQuietDownloader(
+            self.ydl,
             {
                 'continuedl': True,
                 'quiet': True,
                 'noprogress': True,
                 'test': self.params.get('test', False),
-            })
+            }
+        )
 
         doc = etree.fromstring(manifest)
         formats = [(int(f.attrib.get('bitrate', -1)), f) for f in doc.findall(_add_ns('media'))]
-        formats = sorted(formats, key=lambda f: f[0])
-        rate, media = formats[-1]
+        if requested_bitrate is None:
+            # get the best format
+            formats = sorted(formats, key=lambda f: f[0])
+            rate, media = formats[-1]
+        else:
+            rate, media = list(filter(
+                lambda f: int(f[0]) == requested_bitrate, formats))[0]
+
         base_url = compat_urlparse.urljoin(man_url, media.attrib['url'])
-        bootstrap = base64.b64decode(doc.find(_add_ns('bootstrapInfo')).text)
+        bootstrap_node = doc.find(_add_ns('bootstrapInfo'))
+        if bootstrap_node.text is None:
+            bootstrap_url = compat_urlparse.urljoin(
+                base_url, bootstrap_node.attrib['url'])
+            bootstrap = self.ydl.urlopen(bootstrap_url).read()
+        else:
+            bootstrap = base64.b64decode(bootstrap_node.text)
         metadata = base64.b64decode(media.find(_add_ns('metadata')).text)
         boot_info = read_bootstrap_info(bootstrap)
+
         fragments_list = build_fragments_list(boot_info)
         if self.params.get('test', False):
             # We only download the first fragment
             fragments_list = fragments_list[:1]
         total_frags = len(fragments_list)
+        # For some akamai manifests we'll need to add a query to the fragment url
+        akamai_pv = xpath_text(doc, _add_ns('pv-2.0'))
 
         tmpfilename = self.temp_name(filename)
         (dest_stream, tmpfilename) = sanitize_open(tmpfilename, 'wb')
@@ -261,7 +279,7 @@ class F4mFD(FileDownloader):
         def frag_progress_hook(status):
             frag_total_bytes = status.get('total_bytes', 0)
             estimated_size = (state['downloaded_bytes'] +
-                (total_frags - state['frag_counter']) * frag_total_bytes)
+                              (total_frags - state['frag_counter']) * frag_total_bytes)
             if status['status'] == 'finished':
                 state['downloaded_bytes'] += frag_total_bytes
                 state['frag_counter'] += 1
@@ -271,19 +289,21 @@ class F4mFD(FileDownloader):
                 frag_downloaded_bytes = status['downloaded_bytes']
                 byte_counter = state['downloaded_bytes'] + frag_downloaded_bytes
                 frag_progress = self.calc_percent(frag_downloaded_bytes,
-                    frag_total_bytes)
+                                                  frag_total_bytes)
                 progress = self.calc_percent(state['frag_counter'], total_frags)
                 progress += frag_progress / float(total_frags)
 
             eta = self.calc_eta(start, time.time(), estimated_size, byte_counter)
             self.report_progress(progress, format_bytes(estimated_size),
-                status.get('speed'), eta)
+                                 status.get('speed'), eta)
         http_dl.add_progress_hook(frag_progress_hook)
 
         frags_filenames = []
         for (seg_i, frag_i) in fragments_list:
             name = 'Seg%d-Frag%d' % (seg_i, frag_i)
             url = base_url + name
+            if akamai_pv:
+                url += '?' + akamai_pv.strip(';')
             frag_filename = '%s-%s' % (tmpfilename, name)
             success = http_dl.download(frag_filename, {'url': url})
             if not success:
@@ -298,6 +318,7 @@ class F4mFD(FileDownloader):
                         break
             frags_filenames.append(frag_filename)
 
+        dest_stream.close()
         self.report_finish(format_bytes(state['downloaded_bytes']), time.time() - start)
 
         self.try_rename(tmpfilename, filename)