---

I don't like it incredibly but works. Anybody has a better idea?

 libavcodec/wavpack.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 233c533..06612ab 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -902,19 +902,27 @@ static int wavpack_decode_block(AVCodecContext *avctx, 
int block_no,
             }
             t = 0;
             for (i = s->terms - 1; (i >= 0) && (t < size); i--) {
+                int dec_size =
+                    4 * (s->decorr[i].value > 8) * (1 + s->stereo_in) +
+                    4 * (s->decorr[i].value < 0) +
+                    2 *  s->decorr[i].value * (s->stereo_in + 1) *
+                    (s->decorr[i].value <= 8 && s->decorr[i].value >= 0);
+
+                if (buf + dec_size > buf_end)
+                    break;
+
+                t += dec_size;
+
                 if (s->decorr[i].value > 8) {
                     s->decorr[i].samplesA[0] = wp_exp2(AV_RL16(buf)); buf += 2;
                     s->decorr[i].samplesA[1] = wp_exp2(AV_RL16(buf)); buf += 2;
                     if (s->stereo_in) {
                         s->decorr[i].samplesB[0] = wp_exp2(AV_RL16(buf)); buf 
+= 2;
                         s->decorr[i].samplesB[1] = wp_exp2(AV_RL16(buf)); buf 
+= 2;
-                        t += 4;
                     }
-                    t += 4;
                 } else if (s->decorr[i].value < 0) {
                     s->decorr[i].samplesA[0] = wp_exp2(AV_RL16(buf)); buf += 2;
                     s->decorr[i].samplesB[0] = wp_exp2(AV_RL16(buf)); buf += 2;
-                    t += 4;
                 } else {
                     for (j = 0; j < s->decorr[i].value; j++) {
                         s->decorr[i].samplesA[j] = wp_exp2(AV_RL16(buf)); buf 
+= 2;
@@ -922,7 +930,6 @@ static int wavpack_decode_block(AVCodecContext *avctx, int 
block_no,
                             s->decorr[i].samplesB[j] = wp_exp2(AV_RL16(buf)); 
buf += 2;
                         }
                     }
-                    t += s->decorr[i].value * 2 * (s->stereo_in + 1);
                 }
             }
             got_samples = 1;
--
1.8.2.1

_______________________________________________
libav-devel mailing list
[email protected]
https://lists.libav.org/mailman/listinfo/libav-devel

Reply via email to