[downloader/external:ffmpeg] minimize the use of aac_adtstoasc filter

[youtube-dl] / youtube_dl / downloader / external.py

diff --git a/youtube_dl/downloader/external.py b/youtube_dl/downloader/external.py
index cf45562217ac0c27b77f3a241f3881d770d800ce..138f353efcde9481ac2b04d01973522cbaedf756 100644 (file)
--- a/youtube_dl/downloader/external.py
+++ b/youtube_dl/downloader/external.py
@@ -17,6 +17,7 @@ from ..utils import (
     encodeArgument,
     handle_youtubedl_headers,
     check_executable,
+    is_outdated_version,
 )
 
 
@@ -220,6 +221,12 @@ class FFmpegFD(ExternalFD):
         if proxy:
             if not re.match(r'^[\da-zA-Z]+://', proxy):
                 proxy = 'http://%s' % proxy
+
+            if proxy.startswith('socks'):
+                self.report_warning(
+                    '%s does not support SOCKS proxies. Downloading is likely to fail. '
+                    'Consider adding --hls-prefer-native to your command.' % self.get_basename())
+
             # Since December 2015 ffmpeg supports -http_proxy option (see
             # http://git.videolan.org/?p=ffmpeg.git;a=commit;h=b4eb1f29ebddd60c41a2eb39f5af701e38e0d3fd)
             # We could switch to the following code if we are able to detect version properly
@@ -258,7 +265,9 @@ class FFmpegFD(ExternalFD):
             if self.params.get('hls_use_mpegts', False) or tmpfilename == '-':
                 args += ['-f', 'mpegts']
             else:
-                args += ['-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
+                args += ['-f', 'mp4']
+                if (ffpp.basename == 'ffmpeg' and is_outdated_version(ffpp._versions['ffmpeg'], '3.2')) and (not info_dict.get('acodec') or info_dict['acodec'].split('.')[0] in ('aac', 'mp4a')):
+                    args += ['-bsf:a', 'aac_adtstoasc']
         elif protocol == 'rtmp':
             args += ['-f', 'flv']
         else:
@@ -287,6 +296,7 @@ class FFmpegFD(ExternalFD):
 class AVconvFD(FFmpegFD):
     pass
 
+
 _BY_NAME = dict(
     (klass.get_basename(), klass)
     for name, klass in globals().items()