diff options
| author | Fraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de> | 2019-12-19 17:25:55 +0100 |
|---|---|---|
| committer | Jean-Michel Trivi <jmtrivi@google.com> | 2020-02-13 14:58:49 -0800 |
| commit | 443d38963e804ce1133e2338937e1cf389092b52 (patch) | |
| tree | caceabe8e28c9fa1d0c813032b92e300e34b03a6 /libAACenc/src/qc_main.cpp | |
| parent | 79305e068e75df9123f114c95606ef49590f0019 (diff) | |
| download | fdk-aac-443d38963e804ce1133e2338937e1cf389092b52.tar.gz fdk-aac-443d38963e804ce1133e2338937e1cf389092b52.tar.bz2 fdk-aac-443d38963e804ce1133e2338937e1cf389092b52.zip | |
Enhance encoder audio quality for vbr (FDKenc v4.0.1).
Bug: 149489652
Test: atest android.media.cts.EncoderTest#testAACEncoders
Change-Id: I4af82bd104a94710d1977eaa0bd086aa743d3adf
Diffstat (limited to 'libAACenc/src/qc_main.cpp')
| -rw-r--r-- | libAACenc/src/qc_main.cpp | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/libAACenc/src/qc_main.cpp b/libAACenc/src/qc_main.cpp index ba3bc7e..bcfaa23 100644 --- a/libAACenc/src/qc_main.cpp +++ b/libAACenc/src/qc_main.cpp @@ -1,7 +1,7 @@ /* ----------------------------------------------------------------------------- Software License for The Fraunhofer FDK AAC Codec Library for Android -© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten +© Copyright 1995 - 2019 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. All rights reserved. 1. INTRODUCTION @@ -121,20 +121,15 @@ typedef struct { static const TAB_VBR_QUAL_FACTOR tableVbrQualFactor[] = { {QCDATA_BR_MODE_VBR_1, - FL2FXCONST_DBL(0.160f)}, /* Approx. 32 - 48 (AC-LC), 32 - 56 - (AAC-LD/ELD) kbps/channel */ + FL2FXCONST_DBL(0.150f)}, /* Approx. 32 kbps mono AAC-LC + SBR + PS */ {QCDATA_BR_MODE_VBR_2, - FL2FXCONST_DBL(0.148f)}, /* Approx. 40 - 56 (AC-LC), 40 - 64 - (AAC-LD/ELD) kbps/channel */ + FL2FXCONST_DBL(0.162f)}, /* Approx. 64 kbps stereo AAC-LC + SBR */ {QCDATA_BR_MODE_VBR_3, - FL2FXCONST_DBL(0.135f)}, /* Approx. 48 - 64 (AC-LC), 48 - 72 - (AAC-LD/ELD) kbps/channel */ + FL2FXCONST_DBL(0.176f)}, /* Approx. 96 kbps stereo AAC-LC */ {QCDATA_BR_MODE_VBR_4, - FL2FXCONST_DBL(0.111f)}, /* Approx. 64 - 80 (AC-LC), 64 - 88 - (AAC-LD/ELD) kbps/channel */ + FL2FXCONST_DBL(0.120f)}, /* Approx. 128 kbps stereo AAC-LC */ {QCDATA_BR_MODE_VBR_5, - FL2FXCONST_DBL(0.070f)} /* Approx. 96 - 120 (AC-LC), 112 - 144 - (AAC-LD/ELD) kbps/channel */ + FL2FXCONST_DBL(0.070f)} /* Approx. 192 kbps stereo AAC-LC */ }; static INT isConstantBitrateMode(const QCDATA_BR_MODE bitrateMode) { |