diff options
| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2012-03-04 13:28:16 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-02-10 21:45:55 +0100 |
| commit | c3390fd56cf55259ea7665ecea6c8aeddf56e2fc (patch) | |
| tree | 75bec46420b7d4a9eddbfa499af648922a8bc93c /libavcodec/ra144enc.c | |
| parent | dfc99ca04d7698b8f4101dd4f017c1b023ad95f8 (diff) | |
| download | ffmpeg-c3390fd56cf55259ea7665ecea6c8aeddf56e2fc.tar.gz | |
ra144: use scalarproduct_int16
The buffer holding the coefficients must be padded with 0 so as to use DSP
functions that may overread. Currently, the SSE2/3 versions is an example,
as they process batches of 16 bytes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/ra144enc.c')
| -rw-r--r-- | libavcodec/ra144enc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libavcodec/ra144enc.c b/libavcodec/ra144enc.c index 3558254e56..71f206fda3 100644 --- a/libavcodec/ra144enc.c +++ b/libavcodec/ra144enc.c @@ -60,7 +60,9 @@ static av_cold int ra144_encode_init(AVCodecContext * avctx) ractx = avctx->priv_data; ractx->lpc_coef[0] = ractx->lpc_tables[0]; ractx->lpc_coef[1] = ractx->lpc_tables[1]; + AV_ZERO128(ractx->buffer_a+BLOCKSIZE); ractx->avctx = avctx; + ff_dsputil_init(&ractx->dsp, avctx); ret = ff_lpc_init(&ractx->lpc_ctx, avctx->frame_size, LPC_ORDER, FF_LPC_TYPE_LEVINSON); if (ret < 0) @@ -334,7 +336,6 @@ static void ra144_encode_subblock(RA144Context *ractx, float data[BLOCKSIZE] = { 0 }, work[LPC_ORDER + BLOCKSIZE]; float coefs[LPC_ORDER]; float zero[BLOCKSIZE], cba[BLOCKSIZE], cb1[BLOCKSIZE], cb2[BLOCKSIZE]; - int16_t cba_vect[BLOCKSIZE]; int cba_idx, cb1_idx, cb2_idx, gain; int i, n; unsigned m[3]; @@ -373,8 +374,8 @@ static void ra144_encode_subblock(RA144Context *ractx, */ memcpy(cba, work + LPC_ORDER, sizeof(cba)); - ff_copy_and_dup(cba_vect, ractx->adapt_cb, cba_idx + BLOCKSIZE / 2 - 1); - m[0] = (ff_irms(cba_vect) * rms) >> 12; + ff_copy_and_dup(ractx->buffer_a, ractx->adapt_cb, cba_idx + BLOCKSIZE / 2 - 1); + m[0] = (ff_irms(&ractx->dsp, ractx->buffer_a) * rms) >> 12; } fixed_cb_search(work + LPC_ORDER, coefs, data, cba_idx, &cb1_idx, &cb2_idx); for (i = 0; i < BLOCKSIZE; i++) { |