[FFmpeg-cvslog] mov: Fix memory leaks on aborted header parsing.

[Dale Curtis]

ffmpeg | branch: master | Dale Curtis <dalecurtis at chromium.org> | Thu Apr 12 17:50:55 2012 -0700| [a6b3e6d0b49b47c9b874e59b88a8051af338f520] | committer: Michael Niedermayer

mov: Fix memory leaks on aborted header parsing.

If mov_read_header exits under error, the memory allocated is
not freed.

Signed-off-by: Dale Curtis <dalecurtis at chromium.org>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a6b3e6d0b49b47c9b874e59b88a8051af338f520
---

 libavformat/mov.c |   74 +++++++++++++++++++++++++++++-----------------------
 1 files changed, 41 insertions(+), 33 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index d3bd228..5b81ba8 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -2765,6 +2765,45 @@ static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
     return 0;
 }
 
+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];
+        MOVStreamContext *sc = st->priv_data;
+
+        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);
+        }
+        av_freep(&sc->drefs);
+        if (sc->pb && sc->pb != s->pb)
+            avio_close(sc->pb);
+        av_freep(&sc->chunk_offsets);
+        av_freep(&sc->keyframes);
+        av_freep(&sc->sample_sizes);
+        av_freep(&sc->stps_data);
+        av_freep(&sc->stsc_data);
+        av_freep(&sc->stts_data);
+    }
+
+    if (mov->dv_demux) {
+        for (i = 0; i < mov->dv_fctx->nb_streams; i++) {
+            av_freep(&mov->dv_fctx->streams[i]->codec);
+            av_freep(&mov->dv_fctx->streams[i]);
+        }
+        av_freep(&mov->dv_fctx);
+        av_freep(&mov->dv_demux);
+    }
+
+    av_freep(&mov->trex_data);
+
+    return 0;
+}
+
 static int mov_read_header(AVFormatContext *s)
 {
     MOVContext *mov = s->priv_data;
@@ -2782,10 +2821,12 @@ static int mov_read_header(AVFormatContext *s)
     /* check MOV header */
     if ((err = mov_read_default(mov, pb, atom)) < 0) {
         av_log(s, AV_LOG_ERROR, "error reading header: %d\n", err);
+        mov_read_close(s);
         return err;
     }
     if (!mov->found_moov) {
         av_log(s, AV_LOG_ERROR, "moov atom not found\n");
+        mov_read_close(s);
         return AVERROR_INVALIDDATA;
     }
     av_dlog(mov->fc, "on_parse_exit_offset=%"PRId64"\n", avio_tell(pb));
@@ -2985,39 +3026,6 @@ static int mov_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
     return 0;
 }
 
-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];
-        MOVStreamContext *sc = st->priv_data;
-
-        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);
-        }
-        av_freep(&sc->drefs);
-        if (sc->pb && sc->pb != s->pb)
-            avio_close(sc->pb);
-    }
-
-    if (mov->dv_demux) {
-        for (i = 0; i < mov->dv_fctx->nb_streams; i++) {
-            av_freep(&mov->dv_fctx->streams[i]->codec);
-            av_freep(&mov->dv_fctx->streams[i]);
-        }
-        av_freep(&mov->dv_fctx);
-        av_freep(&mov->dv_demux);
-    }
-
-    av_freep(&mov->trex_data);
-
-    return 0;
-}
-
 static const AVOption options[] = {
     {"use_absolute_path",
         "allow using absolute path when opening alias, this is a possible security issue",