avformat/mov: split off MOVStreamContext freeing into its own function

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

libavformat/mov.c

@@ -8587,22 +8587,17 @@ static void mov_free_encryption_index(MOVEncryptionIndex **index) {
     av_freep(index);
 }
 
-static int mov_read_close(AVFormatContext *s)
+static void mov_free_stream_context(AVFormatContext *s, AVStream *st)
 {
-    MOVContext *mov = s->priv_data;
-    int i, j;
-
-    for (i = 0; i < s->nb_streams; i++) {
-        AVStream *st = s->streams[i];
     MOVStreamContext *sc = st->priv_data;
 
     if (!sc)
-            continue;
+        return;
 
     av_freep(&sc->ctts_data);
-        for (j = 0; j < sc->drefs_count; j++) {
-            av_freep(&sc->drefs[j].path);
-            av_freep(&sc->drefs[j].dir);
+    for (int i = 0; i < sc->drefs_count; i++) {
+        av_freep(&sc->drefs[i].path);
+        av_freep(&sc->drefs[i].dir);
     }
     av_freep(&sc->drefs);
 
@@ -8629,8 +8624,8 @@ static int mov_read_close(AVFormatContext *s)
     av_freep(&sc->index_ranges);
 
     if (sc->extradata)
-            for (j = 0; j < sc->stsd_count; j++)
-                av_free(sc->extradata[j]);
+        for (int i = 0; i < sc->stsd_count; i++)
+            av_free(sc->extradata[i]);
     av_freep(&sc->extradata);
     av_freep(&sc->extradata_size);
 
@@ -8642,6 +8637,17 @@ static int mov_read_close(AVFormatContext *s)
     av_freep(&sc->spherical);
     av_freep(&sc->mastering);
     av_freep(&sc->coll);
+}
+
+static int mov_read_close(AVFormatContext *s)
+{
+    MOVContext *mov = s->priv_data;
+    int i, j;
+
+    for (i = 0; i < s->nb_streams; i++) {
+        AVStream *st = s->streams[i];
+
+        mov_free_stream_context(s, st);
     }
 
     av_freep(&mov->dv_demux);