X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/87a0165ca7e39af4dacb7ec637063b2cd35ae40b..f4289d8c83b2ef4f79c675e01198056ae9a2aea9:/youtube_dl/downloader/ism.py

diff --git a/youtube_dl/downloader/ism.py b/youtube_dl/downloader/ism.py
index 93cac5e..1ca666b 100644
--- a/youtube_dl/downloader/ism.py
+++ b/youtube_dl/downloader/ism.py
@@ -1,30 +1,27 @@
 from __future__ import unicode_literals
 
-import os
 import time
-import struct
 import binascii
 import io
 
 from .fragment import FragmentFD
-from ..compat import compat_urllib_error
-from ..utils import (
-    sanitize_open,
-    encodeFilename,
+from ..compat import (
+    compat_Struct,
+    compat_urllib_error,
 )
 
 
-u8 = struct.Struct(b'>B')
-u88 = struct.Struct(b'>Bx')
-u16 = struct.Struct(b'>H')
-u1616 = struct.Struct(b'>Hxx')
-u32 = struct.Struct(b'>I')
-u64 = struct.Struct(b'>Q')
+u8 = compat_Struct('>B')
+u88 = compat_Struct('>Bx')
+u16 = compat_Struct('>H')
+u1616 = compat_Struct('>Hxx')
+u32 = compat_Struct('>I')
+u64 = compat_Struct('>Q')
 
-s88 = struct.Struct(b'>bx')
-s16 = struct.Struct(b'>h')
-s1616 = struct.Struct(b'>hxx')
-s32 = struct.Struct(b'>i')
+s88 = compat_Struct('>bx')
+s16 = compat_Struct('>h')
+s1616 = compat_Struct('>hxx')
+s32 = compat_Struct('>i')
 
 unity_matrix = (s32.pack(0x10000) + s32.pack(0) * 3) * 2 + s32.pack(0x40000000)
 
@@ -103,7 +100,7 @@ def write_piff_header(stream, params):
 
     if is_audio:
         smhd_payload = s88.pack(0)  # balance
-        smhd_payload = u16.pack(0)  # reserved
+        smhd_payload += u16.pack(0)  # reserved
         media_header_box = full_box(b'smhd', 0, 0, smhd_payload)  # Sound Media Header
     else:
         vmhd_payload = u16.pack(0)  # graphics mode
@@ -131,7 +128,6 @@ def write_piff_header(stream, params):
         if fourcc == 'AACL':
             sample_entry_box = box(b'mp4a', sample_entry_payload)
     else:
-        sample_entry_payload = sample_entry_payload
         sample_entry_payload += u16.pack(0)  # pre defined
         sample_entry_payload += u16.pack(0)  # reserved
         sample_entry_payload += u32.pack(0) * 3  # pre defined
@@ -145,12 +141,12 @@ def write_piff_header(stream, params):
         sample_entry_payload += u16.pack(0x18)  # depth
         sample_entry_payload += s16.pack(-1)  # pre defined
 
-        codec_private_data = binascii.unhexlify(params['codec_private_data'])
+        codec_private_data = binascii.unhexlify(params['codec_private_data'].encode('utf-8'))
         if fourcc in ('H264', 'AVC1'):
             sps, pps = codec_private_data.split(u32.pack(1))[1:]
             avcc_payload = u8.pack(1)  # configuration version
             avcc_payload += sps[1:4]  # avc profile indication + profile compatibility + avc level indication
-            avcc_payload += u8.pack(0xfc | (params.get('nal_unit_length_field', 4) - 1))  # complete represenation (1) + reserved (11111) + length size minus one
+            avcc_payload += u8.pack(0xfc | (params.get('nal_unit_length_field', 4) - 1))  # complete representation (1) + reserved (11111) + length size minus one
             avcc_payload += u8.pack(1)  # reserved (0) + number of sps (0000001)
             avcc_payload += u16.pack(len(sps))
             avcc_payload += sps
@@ -225,47 +221,39 @@ class IsmFD(FragmentFD):
 
         self._prepare_and_start_frag_download(ctx)
 
-        segments_filenames = []
-
         fragment_retries = self.params.get('fragment_retries', 0)
         skip_unavailable_fragments = self.params.get('skip_unavailable_fragments', True)
 
         track_written = False
+        frag_index = 0
         for i, segment in enumerate(segments):
-            segment_url = segment['url']
-            segment_name = 'Frag%d' % i
-            target_filename = '%s-%s' % (ctx['tmpfilename'], segment_name)
+            frag_index += 1
+            if frag_index <= ctx['fragment_index']:
+                continue
             count = 0
             while count <= fragment_retries:
                 try:
-                    success = ctx['dl'].download(target_filename, {'url': segment_url})
+                    success, frag_content = self._download_fragment(ctx, segment['url'], info_dict)
                     if not success:
                         return False
-                    down, target_sanitized = sanitize_open(target_filename, 'rb')
-                    down_data = down.read()
                     if not track_written:
-                        tfhd_data = extract_box_data(down_data, [b'moof', b'traf', b'tfhd'])
+                        tfhd_data = extract_box_data(frag_content, [b'moof', b'traf', b'tfhd'])
                         info_dict['_download_params']['track_id'] = u32.unpack(tfhd_data[4:8])[0]
                         write_piff_header(ctx['dest_stream'], info_dict['_download_params'])
                         track_written = True
-                    ctx['dest_stream'].write(down_data)
-                    down.close()
-                    segments_filenames.append(target_sanitized)
+                    self._append_fragment(ctx, frag_content)
                     break
                 except compat_urllib_error.HTTPError as err:
                     count += 1
                     if count <= fragment_retries:
-                        self.report_retry_fragment(err, segment_name, count, fragment_retries)
+                        self.report_retry_fragment(err, frag_index, count, fragment_retries)
             if count > fragment_retries:
                 if skip_unavailable_fragments:
-                    self.report_skip_fragment(segment_name)
+                    self.report_skip_fragment(frag_index)
                     continue
                 self.report_error('giving up after %s fragment retries' % fragment_retries)
                 return False
 
         self._finish_frag_download(ctx)
 
-        for segment_file in segments_filenames:
-            os.remove(encodeFilename(segment_file))
-
         return True