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| author | Rostislav Pehlivanov <atomnuker@gmail.com> | 2015-12-08 13:21:41 +0000 |
|---|---|---|
| committer | Rostislav Pehlivanov <atomnuker@gmail.com> | 2015-12-08 13:31:50 +0000 |
| commit | 6e5dbe7267fc5790ff48225623be2ed9abd575c9 (patch) | |
| tree | df0c31c41176dbc24b363958c3369f6860fcf21b | |
| parent | 8142daca44d8825001eb7ee935e2f0a7933e09b2 (diff) | |
| download | ffmpeg-6e5dbe7267fc5790ff48225623be2ed9abd575c9.tar.gz | |
aacenc_tns: use 4 bits for short windows
With only 7 coefficients per short window at most the extra precision
makes a difference and seems to reduce crackling and stddev even
further.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
| -rw-r--r-- | libavcodec/aacenc_tns.c | 2 | ||||
| -rw-r--r-- | tests/fate/aac.mak | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/aacenc_tns.c b/libavcodec/aacenc_tns.c index 84f5d09693..9ac9ed912e 100644 --- a/libavcodec/aacenc_tns.c +++ b/libavcodec/aacenc_tns.c @@ -35,7 +35,7 @@ #define TNS_Q_BITS 4 /* Coefficient resolution in short windows */ -#define TNS_Q_BITS_IS8 3 +#define TNS_Q_BITS_IS8 4 /* We really need the bits we save here elsewhere */ #define TNS_ENABLE_COEF_COMPRESSION diff --git a/tests/fate/aac.mak b/tests/fate/aac.mak index d658751726..816fbf066f 100644 --- a/tests/fate/aac.mak +++ b/tests/fate/aac.mak @@ -182,7 +182,7 @@ fate-aac-tns-encode: CMD = enc_dec_pcm adts wav s16le $(TARGET_SAMPLES)/audio-re fate-aac-tns-encode: CMP = stddev fate-aac-tns-encode: REF = $(SAMPLES)/audio-reference/luckynight_2ch_44kHz_s16.wav fate-aac-tns-encode: CMP_SHIFT = -4096 -fate-aac-tns-encode: CMP_TARGET = 818 +fate-aac-tns-encode: CMP_TARGET = 817 fate-aac-tns-encode: FUZZ = 6 fate-aac-tns-encode: SIZE_TOLERANCE = 3560 |