From b32e989e6c65ec9ec206ad938a1decdf2e0da07b Mon Sep 17 00:00:00 2001
From: Rostislav Pehlivanov <atomnuker@gmail.com>
Date: Sun, 6 Dec 2015 13:32:40 +0000
Subject: [PATCH] aacenc: move the TNS search and filtering before PNS
The original plan was to have TNS use data from the PNS search to better
tune itself to noise but this was never used nor necessary. This should
slightly boost the PNS accuracy if TNS was used.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
---
libavcodec/aacenc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index 7220ddc4d76..2156fc03e1e 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -678,14 +678,14 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
for (ch = 0; ch < chans; ch++) { /* TNS and PNS */
sce = &cpe->ch[ch];
s->cur_channel = start_ch + ch;
- if (s->options.pns && s->coder->search_for_pns)
- s->coder->search_for_pns(s, avctx, sce);
if (s->options.tns && s->coder->search_for_tns)
s->coder->search_for_tns(s, sce);
if (s->options.tns && s->coder->apply_tns_filt)
s->coder->apply_tns_filt(s, sce);
if (sce->tns.present)
tns_mode = 1;
+ if (s->options.pns && s->coder->search_for_pns)
+ s->coder->search_for_pns(s, avctx, sce);
}
s->cur_channel = start_ch;
if (s->options.intensity_stereo) { /* Intensity Stereo */
--
GitLab