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[downloader/external] check for external downloaders availability

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This commit is contained in:
remitamine 2016-02-20 07:58:25 +01:00
parent 12b84ac8c1
commit 99cbe98ce8
2 changed files with 23 additions and 2 deletions
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4
youtube_dl/downloader/__init__.py
View file

@ -31,13 +31,13 @@ def get_suitable_downloader(info_dict, params={}):
protocol = determine_protocol(info_dict)
info_dict['protocol'] = protocol
if (info_dict.get('start_time') or info_dict.get('end_time')) and FFmpegFD.supports(info_dict):
if (info_dict.get('start_time') or info_dict.get('end_time')) and FFmpegFD.available() and FFmpegFD.supports(info_dict):
return FFmpegFD
external_downloader = params.get('external_downloader')
if external_downloader is not None:
ed = get_external_downloader(external_downloader)
if ed.supports(info_dict):
if ed.available() and ed.supports(info_dict):
return ed
if protocol == 'm3u8' and params.get('hls_prefer_native'):

21
youtube_dl/downloader/external.py
View file

@ -16,6 +16,7 @@ from ..utils import (
encodeFilename,
encodeArgument,
handle_youtubedl_headers,
check_executable,
)
@ -50,6 +51,10 @@ class ExternalFD(FileDownloader):
def exe(self):
return self.params.get('external_downloader')
@classmethod
def available(cls):
return check_executable(cls.get_basename(), cls.available_opt)
@classmethod
def supports(cls, info_dict):
return info_dict['protocol'] in ('http', 'https', 'ftp', 'ftps')
@ -81,6 +86,8 @@ class ExternalFD(FileDownloader):
class CurlFD(ExternalFD):
available_opt = ['-V']
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '--location', '-o', tmpfilename]
for key, val in info_dict['http_headers'].items():
@ -94,6 +101,8 @@ class CurlFD(ExternalFD):
class AxelFD(ExternalFD):
available_opt = ['-V']
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-o', tmpfilename]
for key, val in info_dict['http_headers'].items():
@ -104,6 +113,8 @@ class AxelFD(ExternalFD):
class WgetFD(ExternalFD):
available_opt = ['--version']
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-O', tmpfilename, '-nv', '--no-cookies']
for key, val in info_dict['http_headers'].items():
@ -117,6 +128,8 @@ class WgetFD(ExternalFD):
class Aria2cFD(ExternalFD):
available_opt = ['-v']
def _make_cmd(self, tmpfilename, info_dict):
cmd = [self.exe, '-c']
cmd += self._configuration_args([
@ -135,6 +148,10 @@ class Aria2cFD(ExternalFD):
class HttpieFD(ExternalFD):
@classmethod
def available(cls):
return check_executable('http', ['--version'])
def _make_cmd(self, tmpfilename, info_dict):
cmd = ['http', '--download', '--output', tmpfilename, info_dict['url']]
for key, val in info_dict['http_headers'].items():
@ -147,6 +164,10 @@ class FFmpegFD(ExternalFD):
def supports(cls, info_dict):
return info_dict['protocol'] in ('http', 'https', 'ftp', 'ftps', 'm3u8', 'rtsp', 'rtmp', 'mms')
@classmethod
def available(cls):
return FFmpegPostProcessor().available
def _call_downloader(self, tmpfilename, info_dict):
url = info_dict['url']
ffpp = FFmpegPostProcessor(downloader=self)