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Code Issues Releases Activity

[downloader/fragment] use a general file to store fragment download context

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This commit is contained in:
Remita Amine 2017-04-19 18:34:25 +01:00
parent 481ef51e23
commit ea0c2f219c
2 changed files with 15 additions and 7 deletions
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3
youtube_dl/downloader/common.py
View File

@ -187,6 +187,9 @@ def undo_temp_name(self, filename):
return filename[:-len('.part')]
return filename
def ytdl_filename(self, filename):
return filename + '.ytdl'
def try_rename(self, old_filename, new_filename):
try:
if old_filename == new_filename:

19
youtube_dl/downloader/fragment.py
View File

@ -3,6 +3,7 @@
import os
import time
import io
import json
from .common import FileDownloader
from .http import HttpFD
@ -63,8 +64,10 @@ def _download_fragment(self, ctx, frag_url, info_dict, headers=None):
def _append_fragment(self, ctx, frag_content):
ctx['dest_stream'].write(frag_content)
if not (ctx.get('live') or ctx['tmpfilename'] == '-'):
frag_index_stream, _ = sanitize_open(ctx['tmpfilename'] + '.fragindex', 'w')
frag_index_stream.write(compat_str(ctx['frag_index']))
frag_index_stream, _ = sanitize_open(self.ytdl_filename(ctx['filename']), 'w')
frag_index_stream.write(json.dumps({
'frag_index': ctx['frag_index']
}))
frag_index_stream.close()
def _prepare_frag_download(self, ctx):
@ -94,9 +97,10 @@ def _prepare_frag_download(self, ctx):
if os.path.isfile(encodeFilename(tmpfilename)):
open_mode = 'ab'
resume_len = os.path.getsize(encodeFilename(tmpfilename))
if os.path.isfile(encodeFilename(tmpfilename + '.fragindex')):
frag_index_stream, _ = sanitize_open(tmpfilename + '.fragindex', 'r')
frag_index = int(frag_index_stream.read())
ytdl_filename = encodeFilename(self.ytdl_filename(ctx['filename']))
if os.path.isfile(ytdl_filename):
frag_index_stream, _ = sanitize_open(ytdl_filename, 'r')
frag_index = json.loads(frag_index_stream.read())['frag_index']
frag_index_stream.close()
dest_stream, tmpfilename = sanitize_open(tmpfilename, open_mode)
@ -167,8 +171,9 @@ def frag_progress_hook(s):
def _finish_frag_download(self, ctx):
ctx['dest_stream'].close()
if os.path.isfile(encodeFilename(ctx['tmpfilename'] + '.fragindex')):
os.remove(encodeFilename(ctx['tmpfilename'] + '.fragindex'))
ytdl_filename = encodeFilename(self.ytdl_filename(ctx['filename']))
if os.path.isfile(ytdl_filename):
os.remove(ytdl_filename)
elapsed = time.time() - ctx['started']
self.try_rename(ctx['tmpfilename'], ctx['filename'])
fsize = os.path.getsize(encodeFilename(ctx['filename']))