Commit 89ebe00e43 for ffmpeg

commit 89ebe00e4369be7b2f3516df00ecc71977ca9b8b
Author: James Almer <jamrial@gmail.com>
Date:   Mon Oct 5 18:20:03 2026 -0300

    avformat/dashdec: stop using deprecated AVStreamGroup fields

    Signed-off-by: James Almer <jamrial@gmail.com>

diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c
index 26da3f11d2..90a5897b38 100644
--- a/libavformat/dashdec.c
+++ b/libavformat/dashdec.c
@@ -2084,8 +2084,8 @@ static int open_demux_for_component(AVFormatContext *s, struct representation *p

         stg->id = s->nb_stream_groups;

-        for (int j = 0; j < istg->nb_streams; j++) {
-            AVStream *ist = istg->streams[j];
+        for (int j = 0; j < istg->nb_entries; j++) {
+            AVStream *ist = istg->entries[j]->stream;
             AVStream *st = s->streams[ist->index + pls->stream_index];
             ret = avformat_stream_group_add_stream(stg, st);
             if (ret < 0)
@@ -2330,7 +2330,7 @@ static int dash_read_header(AVFormatContext *s)
         if (ret < 0)
             return ret;
         stg->id = stg->index;
-        stg->params.layered_video->el_index = stg->nb_streams - 1;
+        stg->params.layered_video->el_index = stg->nb_entries - 1;
     }

     return 0;