diff options
| -rw-r--r-- | youtube_dl/downloader/__init__.py | 4 | ||||
| -rw-r--r-- | youtube_dl/downloader/external.py | 21 | 
2 files changed, 23 insertions, 2 deletions
diff --git a/youtube_dl/downloader/__init__.py b/youtube_dl/downloader/__init__.py index bb6afb1f8..67c2840a5 100644 --- a/youtube_dl/downloader/__init__.py +++ b/youtube_dl/downloader/__init__.py @@ -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'): diff --git a/youtube_dl/downloader/external.py b/youtube_dl/downloader/external.py index bb43677b7..edf85483b 100644 --- a/youtube_dl/downloader/external.py +++ b/youtube_dl/downloader/external.py @@ -16,6 +16,7 @@ from ..utils import (      encodeFilename,      encodeArgument,      handle_youtubedl_headers, +    check_executable,  ) @@ -51,6 +52,10 @@ class ExternalFD(FileDownloader):          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)  | 
