mov: Free intermediate arrays in the normal cleanup function

These arrays are normally freed at the end of mov_read_trak,
but make sure they're freed in case mov_read_trak returned
early (due to errors) or in case the atoms that allocate arrays
are encountered at some other point than within a trak (which
we don't have checks against).

Sample-Id: 00000496-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>

libavformat/mov.c

@@ -2829,6 +2829,14 @@ static int mov_read_close(AVFormatContext *s)
         av_freep(&sc->drefs);
         if (sc->pb && sc->pb != s->pb)
             avio_close(sc->pb);
+
+        av_freep(&sc->chunk_offsets);
+        av_freep(&sc->stsc_data);
+        av_freep(&sc->sample_sizes);
+        av_freep(&sc->keyframes);
+        av_freep(&sc->stts_data);
+        av_freep(&sc->stps_data);
+        av_freep(&sc->rap_group);
     }
 
     if (mov->dv_demux) {