diff options
author | Ben Avison <bavison@riscosopen.org> | 2013-07-16 16:41:18 +0400 |
---|---|---|
committer | Martin Storsjö <martin@martin.st> | 2013-07-22 11:15:35 +0400 |
commit | 26ffcc7de1d98f77400a2ebe4e75055515c54587 (patch) | |
tree | d2f95b321787e4b83adcbdf17488c0ef4fec0d49 | |
parent | 31c6f6f65c0ed5a894e26ce44ab0c3e89c82b9a2 (diff) |
dcadec: Use int32_to_float_fmul_array8
Signed-off-by: Martin Storsjö <martin@martin.st>
-rw-r--r-- | libavcodec/dcadec.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index 6fdf8288d6..b53f46b74c 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -1140,7 +1140,7 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) /* FIXME */ float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; - LOCAL_ALIGNED_16(int32_t, block, [8]); + LOCAL_ALIGNED_16(int32_t, block, [8 * DCA_SUBBANDS]); /* * Audio data @@ -1153,6 +1153,8 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) quant_step_table = lossy_quant_d; for (k = base_channel; k < s->prim_channels; k++) { + float rscale[DCA_SUBBANDS]; + if (get_bits_left(&s->gb) < 0) return AVERROR_INVALIDDATA; @@ -1175,11 +1177,12 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) * Extract bits from the bit stream */ if (!abits) { - memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0])); + rscale[l] = 0; + memset(block + 8 * l, 0, 8 * sizeof(block[0])); } else { /* Deal with transients */ int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l]; - float rscale = quant_step_size * s->scale_factor[k][l][sfi] * + rscale[l] = quant_step_size * s->scale_factor[k][l][sfi] * s->scalefactor_adj[k][sel]; if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) { @@ -1193,7 +1196,7 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) block_code1 = get_bits(&s->gb, size); block_code2 = get_bits(&s->gb, size); err = decode_blockcodes(block_code1, block_code2, - levels, block); + levels, block + 8 * l); if (err) { av_log(s->avctx, AV_LOG_ERROR, "ERROR: block code look-up failed\n"); @@ -1202,19 +1205,23 @@ static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) } else { /* no coding */ for (m = 0; m < 8; m++) - block[m] = get_sbits(&s->gb, abits - 3); + block[8 * l + m] = get_sbits(&s->gb, abits - 3); } } else { /* Huffman coded */ for (m = 0; m < 8; m++) - block[m] = get_bitalloc(&s->gb, + block[8 * l + m] = get_bitalloc(&s->gb, &dca_smpl_bitalloc[abits], sel); } - s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l], - block, rscale, 8); } + } + + s->fmt_conv.int32_to_float_fmul_array8(&s->fmt_conv, subband_samples[k][0], + block, rscale, 8 * s->vq_start_subband[k]); + for (l = 0; l < s->vq_start_subband[k]; l++) { + int m; /* * Inverse ADPCM if in prediction mode */ |