avformat/hlsenc: convey stream id to segment streams

libavformat/hlsenc.c

@@ -900,6 +900,7 @@ static int hls_mux_init(AVFormatContext *s, VariantStream *vs)
         st->sample_aspect_ratio = vs->streams[i]->sample_aspect_ratio;
         st->time_base = vs->streams[i]->time_base;
         av_dict_copy(&st->metadata, vs->streams[i]->metadata, 0);
+        st->id = vs->streams[i]->id;
     }
 
     vs->start_pos = 0;