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| author | Daniil Cherednik <dan.cherednik@gmail.com> | 2015-11-14 01:57:25 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-11-21 11:38:45 +0100 |
| commit | 6662ca28d4c03c2f45fdba3945c7f0e7bdf64264 (patch) | |
| tree | 25f28457b59152e0d72d26d42543e8ae37eca088 /libavcodec | |
| parent | f2d9ae6e49ed534786eed45ce434ed9780710910 (diff) | |
| download | ffmpeg-6662ca28d4c03c2f45fdba3945c7f0e7bdf64264.tar.gz | |
avcodec/atrac1: fix decoder: QMF delay compensation should be 39 samples
This also adds a new fate test
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/atrac1.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/atrac1.c b/libavcodec/atrac1.c index b70cf4fd92..a8c8c91bcc 100644 --- a/libavcodec/atrac1.c +++ b/libavcodec/atrac1.c @@ -65,7 +65,7 @@ typedef struct AT1SUCtx { DECLARE_ALIGNED(32, float, spec2)[AT1_SU_SAMPLES]; ///< mdct buffer DECLARE_ALIGNED(32, float, fst_qmf_delay)[46]; ///< delay line for the 1st stacked QMF filter DECLARE_ALIGNED(32, float, snd_qmf_delay)[46]; ///< delay line for the 2nd stacked QMF filter - DECLARE_ALIGNED(32, float, last_qmf_delay)[256+23]; ///< delay line for the last stacked QMF filter + DECLARE_ALIGNED(32, float, last_qmf_delay)[256+39]; ///< delay line for the last stacked QMF filter } AT1SUCtx; /** @@ -260,9 +260,9 @@ static void at1_subband_synthesis(AT1Ctx *q, AT1SUCtx* su, float *pOut) /* combine low and middle bands */ ff_atrac_iqmf(q->bands[0], q->bands[1], 128, temp, su->fst_qmf_delay, iqmf_temp); - /* delay the signal of the high band by 23 samples */ - memcpy( su->last_qmf_delay, &su->last_qmf_delay[256], sizeof(float) * 23); - memcpy(&su->last_qmf_delay[23], q->bands[2], sizeof(float) * 256); + /* delay the signal of the high band by 39 samples */ + memcpy( su->last_qmf_delay, &su->last_qmf_delay[256], sizeof(float) * 39); + memcpy(&su->last_qmf_delay[39], q->bands[2], sizeof(float) * 256); /* combine (low + middle) and high bands */ ff_atrac_iqmf(temp, su->last_qmf_delay, 256, pOut, su->snd_qmf_delay, iqmf_temp); |