[FFmpeg-cvslog] avcodec/wavpack: do not process only first non-zero field of int32info chunk

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sun Feb 20 17:12:55 2022 +0100| [b15d3db8b6d71145113b6b6263c9d541fe4d5aa4] | committer: Paul B Mahol

avcodec/wavpack: do not process only first non-zero field of int32info chunk

Fixes bitexact decoding with high bit depth samples.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b15d3db8b6d71145113b6b6263c9d541fe4d5aa4
---

 libavcodec/wavpack.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 30790ef16e..b6c782bd54 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -1303,14 +1303,16 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
                 av_log(avctx, AV_LOG_ERROR,
                        "Invalid INT32INFO, extra_bits = %d (> 30)\n", val[0]);
                 continue;
-            } else if (val[0]) {
+            } else {
                 s->extra_bits = val[0];
-            } else if (val[1]) {
+            }
+            if (val[1])
                 s->shift = val[1];
-            } else if (val[2]) {
+            if (val[2]) {
                 s->and   = s->or = 1;
                 s->shift = val[2];
-            } else if (val[3]) {
+            }
+            if (val[3]) {
                 s->and   = 1;
                 s->shift = val[3];
             }