1 files changed, 40 insertions, 15 deletions
diff --git a/youtube_dl/downloader/__init__.py b/youtube_dl/downloader/__init__.py
index dccc59212..d701d6292 100644
--- a/youtube_dl/downloader/__init__.py
+++ b/youtube_dl/downloader/__init__.py
@@ -1,43 +1,68 @@
 from __future__ import unicode_literals
 
+from ..utils import (
+    determine_protocol,
+)
+
+
+def get_suitable_downloader(info_dict, params={}):
+    info_dict['protocol'] = determine_protocol(info_dict)
+    info_copy = info_dict.copy()
+    return _get_suitable_downloader(info_copy, params)
+
+
+# Some of these require get_suitable_downloader
 from .common import FileDownloader
-from .external import get_external_downloader
+from .dash import DashSegmentsFD
 from .f4m import F4mFD
 from .hls import HlsFD
-from .hls import NativeHlsFD
 from .http import HttpFD
-from .rtsp import RtspFD
 from .rtmp import RtmpFD
-from .dash import DashSegmentsFD
-
-from ..utils import (
-    determine_protocol,
+from .rtsp import RtspFD
+from .ism import IsmFD
+from .niconico import NiconicoDmcFD
+from .external import (
+    get_external_downloader,
+    FFmpegFD,
 )
 
 PROTOCOL_MAP = {
     'rtmp': RtmpFD,
-    'm3u8_native': NativeHlsFD,
-    'm3u8': HlsFD,
+    'm3u8_native': HlsFD,
+    'm3u8': FFmpegFD,
     'mms': RtspFD,
     'rtsp': RtspFD,
     'f4m': F4mFD,
     'http_dash_segments': DashSegmentsFD,
+    'ism': IsmFD,
+    'niconico_dmc': NiconicoDmcFD,
 }
 
 
-def get_suitable_downloader(info_dict, params={}):
+def _get_suitable_downloader(info_dict, params={}):
     """Get the downloader class that can handle the info dict."""
-    protocol = determine_protocol(info_dict)
-    info_dict['protocol'] = protocol
+
+    # if (info_dict.get('start_time') or info_dict.get('end_time')) and not info_dict.get('requested_formats') and FFmpegFD.can_download(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.can_download(info_dict):
             return ed
+        # Avoid using unwanted args since external_downloader was rejected
+        if params.get('external_downloader_args'):
+            params['external_downloader_args'] = None
+
+    protocol = info_dict['protocol']
+    if protocol.startswith('m3u8') and info_dict.get('is_live'):
+        return FFmpegFD
+
+    if protocol == 'm3u8' and params.get('hls_prefer_native') is True:
+        return HlsFD
 
-    if protocol == 'm3u8' and params.get('hls_prefer_native'):
-        return NativeHlsFD
+    if protocol == 'm3u8_native' and params.get('hls_prefer_native') is False:
+        return FFmpegFD
 
     return PROTOCOL_MAP.get(protocol, HttpFD)