[FFmpeg-cvslog] ac3enc: fix AC3 downmix metadata issue

[Piotr Oleszczyk]

ffmpeg | branch: master | Piotr Oleszczyk <piotr at oleszczyk.eu> | Thu Apr 30 18:17:36 2020 +0200| [b9746fcbee8f7d73662cefbf8695f1ab47483bac] | committer: Michael Niedermayer

ac3enc: fix AC3 downmix metadata issue

Due to a typo, it was impossible to write 0.595 / -4.5 dB
of ltrt_cmixlev, ltrt_surmixlev, loro_cmixlev, loro_surmixlev.
Without any error 0.841 / -1.5 dB was written to file.

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b9746fcbee8f7d73662cefbf8695f1ab47483bac
---

 libavcodec/ac3enc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index 7ce17db067..ddbc7b247c 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -63,7 +63,7 @@ static const float surmixlev_options[SURMIXLEV_NUM_OPTIONS] = {
 
 #define EXTMIXLEV_NUM_OPTIONS 8
 static const float extmixlev_options[EXTMIXLEV_NUM_OPTIONS] = {
-    LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_4POINT5DB,
+    LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_1POINT5DB,
     LEVEL_MINUS_3DB, LEVEL_MINUS_4POINT5DB, LEVEL_MINUS_6DB, LEVEL_ZERO
 };