[FFmpeg-cvslog] avcodec/takdec: always check bits_per_raw_sample

[Michael Niedermayer]

ffmpeg | branch: release/1.2 | Michael Niedermayer <michaelni at gmx.at> | Fri Jan 31 19:16:02 2014 +0100| [ca9d302519b690af1318c4c5ef6aeff118548819] | committer: Michael Niedermayer

avcodec/takdec: always check bits_per_raw_sample

Fixes out of array access
Fixes: asan_heap-oob_19c7a94_6470_cov_1453611734_luckynight-partial.tak
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
(cherry picked from commit f58eab151214d2d35ff0973f2b3e51c5eb372da4)

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ca9d302519b690af1318c4c5ef6aeff118548819
---

 libavcodec/takdec.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
index ae751fe..260e326 100644
--- a/libavcodec/takdec.c
+++ b/libavcodec/takdec.c
@@ -732,11 +732,9 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
         return AVERROR_INVALIDDATA;
     }
 
-    if (s->ti.bps != avctx->bits_per_raw_sample) {
-        avctx->bits_per_raw_sample = s->ti.bps;
-        if ((ret = set_bps_params(avctx)) < 0)
-            return ret;
-    }
+    avctx->bits_per_raw_sample = s->ti.bps;
+    if ((ret = set_bps_params(avctx)) < 0)
+        return ret;
     if (s->ti.sample_rate != avctx->sample_rate) {
         avctx->sample_rate = s->ti.sample_rate;
         set_sample_rate_params(avctx);