[FFmpeg-cvslog] avformat/dashdec: Remove dead code

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Fri Sep 18 23:50:53 2020 +0200| [248ef276beb8222bc2610484b830420e1a306d8b] | committer: Andreas Rheinhardt

avformat/dashdec: Remove dead code

The code in question seems to have been copied from about 70 lines
above; yet the code here is only executed if some of the variables
(namely representation_segmenttemplate_node and fragment_template_node)
are NULL, so it makes no sense to check them for a child element.

Also remove a redundant resetting of a pointer to an AVFormatContext
after avformat_close_input() (which already sets the pointer to NULL).

Reviewed-by: Steven Liu <lq at chinaffmpeg.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=248ef276beb8222bc2610484b830420e1a306d8b
---

 libavformat/dashdec.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index 4048323c7d..f81b323d96 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -1047,12 +1047,7 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url,
                 fragmenturl_node = xmlNextElementSibling(fragmenturl_node);
             }
 
-            fragment_timeline_node = find_child_node_by_name(representation_segmenttemplate_node, "SegmentTimeline");
-
-            if (!fragment_timeline_node)
-                fragment_timeline_node = find_child_node_by_name(fragment_template_node, "SegmentTimeline");
-            if (!fragment_timeline_node)
-                fragment_timeline_node = find_child_node_by_name(adaptionset_segmentlist_node, "SegmentTimeline");
+            fragment_timeline_node = find_child_node_by_name(adaptionset_segmentlist_node, "SegmentTimeline");
             if (!fragment_timeline_node)
                 fragment_timeline_node = find_child_node_by_name(period_segmentlist_node, "SegmentTimeline");
             if (fragment_timeline_node) {
@@ -1898,7 +1893,6 @@ static void close_demux_for_component(struct representation *pls)
     memset(&pls->pb, 0x00, sizeof(AVIOContext));
     pls->ctx->pb = NULL;
     avformat_close_input(&pls->ctx);
-    pls->ctx = NULL;
 }
 
 static int reopen_demux_for_component(AVFormatContext *s, struct representation *pls)