[FFmpeg-cvslog] aacenc: temporarily disable Mid/Side coding with multichannel files

[Rostislav Pehlivanov]

ffmpeg | branch: master | Rostislav Pehlivanov <atomnuker at gmail.com> | Sat Feb 13 12:23:22 2016 +0000| [0fe0e213c042d3c36710f11dd607bd34f5eca1f1] | committer: Rostislav Pehlivanov

aacenc: temporarily disable Mid/Side coding with multichannel files

Results in dropping out in channels, usually on EIGHT_SHORT windows.
Will be reenabled once the cause has been investigated and a fix has
been made.

Signed-off-by: Rostislav Pehlivanov <atomnuker at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0fe0e213c042d3c36710f11dd607bd34f5eca1f1
---

 libavcodec/aacenc.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index 1de266d..5a70da1 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -995,6 +995,10 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
     ERROR_IF(s->options.ltp && avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL,
              "The LPT profile requires experimental compliance, add -strict -2 to enable!\n");
 
+    /* M/S introduces horrible artifacts with multichannel files, this is temporary */
+    if (s->channels > 3)
+        s->options.mid_side = 0;
+
     if ((ret = dsp_init(avctx, s)) < 0)
         goto fail;