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| author | Måns Rullgård <mans@mansr.com> | 2009-09-27 08:16:50 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-09-27 08:16:50 +0000 |
| commit | d975e5e9b765855a085010341d9da87e62f73684 (patch) | |
| tree | 228279625b2ffa590859cc717931e7546b1266f4 /libavcodec | |
| parent | 8b11b44ea73f8052c8c2b606532037df848b1d76 (diff) | |
| download | ffmpeg-d975e5e9b765855a085010341d9da87e62f73684.tar.gz | |
WMAPRO: use vector_fmul_scalar from dsputil where possible
Originally committed as revision 20056 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/wmaprodec.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index 7f35edc699..a4fcab7d27 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -981,10 +981,13 @@ static void inverse_channel_transform(WMAProDecodeCtx *s) } } } else if (s->num_channels == 2) { - for (y = sfb[0]; y < FFMIN(sfb[1], s->subframe_len); y++) { - ch_data[0][y] *= 181.0 / 128; - ch_data[1][y] *= 181.0 / 128; - } + int len = FFMIN(sfb[1], s->subframe_len) - sfb[0]; + s->dsp.vector_fmul_scalar(ch_data[0] + sfb[0], + ch_data[0] + sfb[0], + 181.0 / 128, len); + s->dsp.vector_fmul_scalar(ch_data[1] + sfb[0], + ch_data[1] + sfb[0], + 181.0 / 128, len); } } } @@ -1214,10 +1217,10 @@ static int decode_subframe(WMAProDecodeCtx *s) (s->channel[c].max_scale_factor - *sf++) * s->channel[c].scale_factor_step; const float quant = pow(10.0, exp / 20.0); - int start; - - for (start = s->cur_sfb_offsets[b]; start < end; start++) - s->tmp[start] = s->channel[c].coeffs[start] * quant; + int start = s->cur_sfb_offsets[b]; + s->dsp.vector_fmul_scalar(s->tmp + start, + s->channel[c].coeffs + start, + quant, end - start); } /** apply imdct (ff_imdct_half == DCTIV with reverse) */ |