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| author | Jean-Michel Trivi <jmtrivi@google.com> | 2013-08-08 17:43:20 -0700 |
|---|---|---|
| committer | Jean-Michel Trivi <jmtrivi@google.com> | 2013-08-20 15:03:32 -0700 |
| commit | 60a27b7fe5bf2c3b07ae7f679ca67c0c5cba3b00 (patch) | |
| tree | 12a04cd1fdb1b8113eee2836e449fec09d01879e /libAACenc/src/intensity.cpp | |
| parent | ed247dfa54234c1115c35a05327955b29b161e8a (diff) | |
| download | fdk-aac-dabplus-60a27b7fe5bf2c3b07ae7f679ca67c0c5cba3b00.tar.gz fdk-aac-dabplus-60a27b7fe5bf2c3b07ae7f679ca67c0c5cba3b00.tar.bz2 fdk-aac-dabplus-60a27b7fe5bf2c3b07ae7f679ca67c0c5cba3b00.zip | |
Encoder intensity fix
AAC encoder: Prevent illegal intensity values delta coding at short blocks.
Bug 9428126
Change-Id: Ic287b86f3229022740f2317ea74aabe612de5e6b
Diffstat (limited to 'libAACenc/src/intensity.cpp')
| -rw-r--r-- | libAACenc/src/intensity.cpp | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/libAACenc/src/intensity.cpp b/libAACenc/src/intensity.cpp index 28e6eed..6d807f7 100644 --- a/libAACenc/src/intensity.cpp +++ b/libAACenc/src/intensity.cpp @@ -450,23 +450,24 @@ FDKaacEnc_finalizeIntensityDecision(const FIXP_DBL *hrrErr, const INT maxSfbPerGroup) { INT sfb,sfboffs, j; - INT startIsSfb = 0; - INT inIsBlock; - INT currentIsSfbCount; - FIXP_DBL overallHrrError; FIXP_DBL isScaleLast = FL2FXCONST_DBL(0.0f); - FIXP_DBL isRegionLoudness; + INT isStartValueFound = 0; for (sfboffs = 0; sfboffs < sfbCnt; sfboffs += sfbPerGroup) { - inIsBlock = 0; - currentIsSfbCount = 0; - overallHrrError = FL2FXCONST_DBL(0.0f); - isRegionLoudness = FL2FXCONST_DBL(0.0f); + INT startIsSfb = 0; + INT inIsBlock = 0; + INT currentIsSfbCount = 0; + FIXP_DBL overallHrrError = FL2FXCONST_DBL(0.0f); + FIXP_DBL isRegionLoudness = FL2FXCONST_DBL(0.0f); + for (sfb = 0; sfb < maxSfbPerGroup; sfb++) { if (isMask[sfboffs + sfb] == 1) { if (currentIsSfbCount == 0) { startIsSfb = sfboffs + sfb; + } + if (isStartValueFound==0) { isScaleLast = realIsScale[sfboffs + sfb]; + isStartValueFound = 1; } inIsBlock = 1; currentIsSfbCount++; @@ -510,6 +511,14 @@ FDKaacEnc_finalizeIntensityDecision(const FIXP_DBL *hrrErr, for(j = startIsSfb; j <= sfboffs + sfb; j++) { isMask[j] = 0; } + isScaleLast = FL2FXCONST_DBL(0.0f); + isStartValueFound = 0; + for (j=0; j < startIsSfb; j++) { + if (isMask[j]!=0) { + isScaleLast = realIsScale[j]; + isStartValueFound = 1; + } + } } currentIsSfbCount = 0; overallHrrError = FL2FXCONST_DBL(0.0f); |