diff options
Diffstat (limited to 'libavcodec/dcadsp.c')
| -rw-r--r-- | libavcodec/dcadsp.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libavcodec/dcadsp.c b/libavcodec/dcadsp.c index 294a1b2736..18732dc80a 100644 --- a/libavcodec/dcadsp.c +++ b/libavcodec/dcadsp.c @@ -24,12 +24,22 @@ #include "libavutil/intreadwrite.h" #include "dcadsp.h" -static void int8x8_fmul_int32_c(float *dst, const int8_t *src, int scale) +static void decode_hf_c(float dst[DCA_SUBBANDS][8], + const int32_t vq_num[DCA_SUBBANDS], + const int8_t hf_vq[1024][32], intptr_t vq_offset, + int32_t scale[DCA_SUBBANDS][2], + intptr_t start, intptr_t end) { - float fscale = scale / 16.0; - int i; - for (i = 0; i < 8; i++) - dst[i] = src[i] * fscale; + int i, l; + + for (l = start; l < end; l++) { + /* 1 vector -> 32 samples but we only need the 8 samples + * for this subsubframe. */ + const int8_t *ptr = &hf_vq[vq_num[l]][vq_offset]; + float fscale = scale[l][0] * (1 / 16.0); + for (i = 0; i < 8; i++) + dst[l][i] = ptr[i] * fscale; + } } static inline void @@ -96,7 +106,7 @@ av_cold void ff_dcadsp_init(DCADSPContext *s) s->lfe_fir[0] = dca_lfe_fir0_c; s->lfe_fir[1] = dca_lfe_fir1_c; s->qmf_32_subbands = dca_qmf_32_subbands; - s->int8x8_fmul_int32 = int8x8_fmul_int32_c; + s->decode_hf = decode_hf_c; if (ARCH_ARM) ff_dcadsp_init_arm(s); if (ARCH_X86) ff_dcadsp_init_x86(s); } |