[FFmpeg-cvslog] avformat/ffmdec: Check media type for chunks

[Michael Niedermayer]

ffmpeg | branch: release/3.0 | Michael Niedermayer <michael at niedermayer.cc> | Sat Dec  3 13:39:56 2016 +0100| [9f7eb718e9d345179283a1bbfee1d89a5e2d18bc] | committer: Michael Niedermayer

avformat/ffmdec: Check media type for chunks

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit e706e2e775730db5dfa9103628cd70704dd13cef)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9f7eb718e9d345179283a1bbfee1d89a5e2d18bc
---

 libavformat/ffmdec.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavformat/ffmdec.c b/libavformat/ffmdec.c
index 83929fe..44110af 100644
--- a/libavformat/ffmdec.c
+++ b/libavformat/ffmdec.c
@@ -362,7 +362,7 @@ static int ffm2_read_header(AVFormatContext *s)
             }
             break;
         case MKBETAG('S', 'T', 'V', 'I'):
-            if (f_stvi++) {
+            if (f_stvi++ || codec->codec_type != AVMEDIA_TYPE_VIDEO) {
                 ret = AVERROR(EINVAL);
                 goto fail;
             }
@@ -423,7 +423,7 @@ static int ffm2_read_header(AVFormatContext *s)
             codec->refs = avio_rb32(pb);
             break;
         case MKBETAG('S', 'T', 'A', 'U'):
-            if (f_stau++) {
+            if (f_stau++ || codec->codec_type != AVMEDIA_TYPE_AUDIO) {
                 ret = AVERROR(EINVAL);
                 goto fail;
             }
@@ -449,7 +449,7 @@ static int ffm2_read_header(AVFormatContext *s)
             }
             break;
         case MKBETAG('S', '2', 'V', 'I'):
-            if (f_stvi++ || !size) {
+            if (f_stvi++ || !size || codec->codec_type != AVMEDIA_TYPE_VIDEO) {
                 ret = AVERROR(EINVAL);
                 goto fail;
             }
@@ -464,7 +464,7 @@ static int ffm2_read_header(AVFormatContext *s)
                 goto fail;
             break;
         case MKBETAG('S', '2', 'A', 'U'):
-            if (f_stau++ || !size) {
+            if (f_stau++ || !size || codec->codec_type != AVMEDIA_TYPE_AUDIO) {
                 ret = AVERROR(EINVAL);
                 goto fail;
             }