diff --git a/libavformat/mov.c b/libavformat/mov.c
index 22ca809..b387311 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -4655,94 +4655,94 @@ static void mov_read_chapters(AVFormatContext *s)
     int chapter_track;
 
     for (j = 0; j < mov->nb_chapter_tracks; j++) {
-    chapter_track = mov->chapter_tracks[j];
-    st = NULL;
-    for (i = 0; i < s->nb_streams; i++)
-        if (s->streams[i]->id == chapter_track) {
-            st = s->streams[i];
-            break;
+        chapter_track = mov->chapter_tracks[j];
+        st = NULL;
+        for (i = 0; i < s->nb_streams; i++)
+            if (s->streams[i]->id == chapter_track) {
+                st = s->streams[i];
+                break;
+            }
+        if (!st) {
+            av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
+            continue;
         }
-    if (!st) {
-        av_log(s, AV_LOG_ERROR, "Referenced QT chapter track not found\n");
-        continue;
-    }
 
-    sc = st->priv_data;
-    cur_pos = avio_tell(sc->pb);
-
-    if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
-        st->disposition |= AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS;
-        if (st->nb_index_entries) {
-            // Retrieve the first frame, if possible
-            AVPacket pkt;
-            AVIndexEntry *sample = &st->index_entries[0];
-            if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
-                av_log(s, AV_LOG_ERROR, "Failed to retrieve first frame\n");
-                goto finish;
-            }
+        sc = st->priv_data;
+        cur_pos = avio_tell(sc->pb);
+
+        if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+            st->disposition |= AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS;
+            if (st->nb_index_entries) {
+                // Retrieve the first frame, if possible
+                AVPacket pkt;
+                AVIndexEntry *sample = &st->index_entries[0];
+                if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
+                    av_log(s, AV_LOG_ERROR, "Failed to retrieve first frame\n");
+                    goto finish;
+                }
 
-            if (av_get_packet(sc->pb, &pkt, sample->size) < 0)
-                goto finish;
+                if (av_get_packet(sc->pb, &pkt, sample->size) < 0)
+                    goto finish;
 
-            st->attached_pic              = pkt;
-            st->attached_pic.stream_index = st->index;
-            st->attached_pic.flags       |= AV_PKT_FLAG_KEY;
-        }
-    } else {
-    st->codec->codec_type = AVMEDIA_TYPE_DATA;
-    st->codec->codec_id = AV_CODEC_ID_BIN_DATA;
-    st->discard = AVDISCARD_ALL;
-    for (i = 0; i < st->nb_index_entries; i++) {
-        AVIndexEntry *sample = &st->index_entries[i];
-        int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
-        uint8_t *title;
-        uint16_t ch;
-        int len, title_len;
-
-        if (end < sample->timestamp) {
-            av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
-            end = AV_NOPTS_VALUE;
-        }
+                st->attached_pic              = pkt;
+                st->attached_pic.stream_index = st->index;
+                st->attached_pic.flags       |= AV_PKT_FLAG_KEY;
+            }
+        } else {
+            st->codec->codec_type = AVMEDIA_TYPE_DATA;
+            st->codec->codec_id = AV_CODEC_ID_BIN_DATA;
+            st->discard = AVDISCARD_ALL;
+            for (i = 0; i < st->nb_index_entries; i++) {
+                AVIndexEntry *sample = &st->index_entries[i];
+                int64_t end = i+1 < st->nb_index_entries ? st->index_entries[i+1].timestamp : st->duration;
+                uint8_t *title;
+                uint16_t ch;
+                int len, title_len;
+
+                if (end < sample->timestamp) {
+                    av_log(s, AV_LOG_WARNING, "ignoring stream duration which is shorter than chapters\n");
+                    end = AV_NOPTS_VALUE;
+                }
 
-        if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
-            av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
-            goto finish;
-        }
+                if (avio_seek(sc->pb, sample->pos, SEEK_SET) != sample->pos) {
+                    av_log(s, AV_LOG_ERROR, "Chapter %d not found in file\n", i);
+                    goto finish;
+                }
 
-        // the first two bytes are the length of the title
-        len = avio_rb16(sc->pb);
-        if (len > sample->size-2)
-            continue;
-        title_len = 2*len + 1;
-        if (!(title = av_mallocz(title_len)))
-            goto finish;
-
-        // The samples could theoretically be in any encoding if there's an encd
-        // atom following, but in practice are only utf-8 or utf-16, distinguished
-        // instead by the presence of a BOM
-        if (!len) {
-            title[0] = 0;
-        } else {
-            ch = avio_rb16(sc->pb);
-            if (ch == 0xfeff)
-                avio_get_str16be(sc->pb, len, title, title_len);
-            else if (ch == 0xfffe)
-                avio_get_str16le(sc->pb, len, title, title_len);
-            else {
-                AV_WB16(title, ch);
-                if (len == 1 || len == 2)
-                    title[len] = 0;
-                else
-                    avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
+                // the first two bytes are the length of the title
+                len = avio_rb16(sc->pb);
+                if (len > sample->size-2)
+                    continue;
+                title_len = 2*len + 1;
+                if (!(title = av_mallocz(title_len)))
+                    goto finish;
+
+                // The samples could theoretically be in any encoding if there's an encd
+                // atom following, but in practice are only utf-8 or utf-16, distinguished
+                // instead by the presence of a BOM
+                if (!len) {
+                    title[0] = 0;
+                } else {
+                    ch = avio_rb16(sc->pb);
+                    if (ch == 0xfeff)
+                        avio_get_str16be(sc->pb, len, title, title_len);
+                    else if (ch == 0xfffe)
+                        avio_get_str16le(sc->pb, len, title, title_len);
+                    else {
+                        AV_WB16(title, ch);
+                        if (len == 1 || len == 2)
+                            title[len] = 0;
+                        else
+                            avio_get_str(sc->pb, INT_MAX, title + 2, len - 1);
+                    }
+                }
+
+                avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
+                av_freep(&title);
             }
         }
-
-        avpriv_new_chapter(s, i, st->time_base, sample->timestamp, end, title);
-        av_freep(&title);
-    }
-    }
 finish:
-    avio_seek(sc->pb, cur_pos, SEEK_SET);
+        avio_seek(sc->pb, cur_pos, SEEK_SET);
     }
 }
 
