diff options
author | foo86 | 2016-01-16 11:07:08 +0300 |
---|---|---|
committer | Hendrik Leppkes | 2016-01-31 17:09:38 +0100 |
commit | 46089967722f74e794865a044f5f682f26628802 (patch) | |
tree | b4ca91d42d3eb0da3229d217323565738c101f87 /libavcodec/dcadsp.c | |
parent | b552f3afa2a76142c9aa87a89e31e75423b4cd3b (diff) |
avcodec/dca: remove old decoder
Remove all files and functions which are not going to be reused,
and disable all functions and FATE tests temporarily which will be.
Diffstat (limited to 'libavcodec/dcadsp.c')
-rw-r--r-- | libavcodec/dcadsp.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/libavcodec/dcadsp.c b/libavcodec/dcadsp.c deleted file mode 100644 index 32b149d09c..0000000000 --- a/libavcodec/dcadsp.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright (c) 2004 Gildas Bazin - * Copyright (c) 2010 Mans Rullgard <mans@mansr.com> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "config.h" - -#include "libavutil/attributes.h" -#include "libavutil/intreadwrite.h" - -#include "dcadsp.h" -#include "dcamath.h" - -static void decode_hf_c(int32_t dst[DCA_SUBBANDS][SAMPLES_PER_SUBBAND], - 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) -{ - int i, j; - - for (j = start; j < end; j++) { - const int8_t *ptr = &hf_vq[vq_num[j]][vq_offset]; - for (i = 0; i < 8; i++) - dst[j][i] = ptr[i] * scale[j][0] + 8 >> 4; - } -} - -static inline void dca_lfe_fir(float *out, const float *in, const float *coefs, - int decifactor) -{ - float *out2 = out + 2 * decifactor - 1; - int num_coeffs = 256 / decifactor; - int j, k; - - /* One decimated sample generates 2*decifactor interpolated ones */ - for (k = 0; k < decifactor; k++) { - float v0 = 0.0; - float v1 = 0.0; - for (j = 0; j < num_coeffs; j++, coefs++) { - v0 += in[-j] * *coefs; - v1 += in[j + 1 - num_coeffs] * *coefs; - } - *out++ = v0; - *out2-- = v1; - } -} - -static void dca_qmf_32_subbands(float samples_in[DCA_SUBBANDS][SAMPLES_PER_SUBBAND], int sb_act, - SynthFilterContext *synth, FFTContext *imdct, - float synth_buf_ptr[512], - int *synth_buf_offset, float synth_buf2[32], - const float window[512], float *samples_out, - float raXin[32], float scale) -{ - int i; - int subindex; - - for (i = sb_act; i < 32; i++) - raXin[i] = 0.0; - - /* Reconstructed channel sample index */ - for (subindex = 0; subindex < 8; subindex++) { - /* Load in one sample from each subband and clear inactive subbands */ - for (i = 0; i < sb_act; i++) { - unsigned sign = (i - 1) & 2; - uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30; - AV_WN32A(&raXin[i], v); - } - - synth->synth_filter_float(imdct, synth_buf_ptr, synth_buf_offset, - synth_buf2, window, samples_out, raXin, - scale); - samples_out += 32; - } -} - -static void dequantize_c(int32_t *samples, uint32_t step_size, uint32_t scale) -{ - int64_t step = (int64_t)step_size * scale; - int shift, i; - int32_t step_scale; - - if (step > (1 << 23)) - shift = av_log2(step >> 23) + 1; - else - shift = 0; - step_scale = (int32_t)(step >> shift); - - for (i = 0; i < SAMPLES_PER_SUBBAND; i++) - samples[i] = dca_clip23(dca_norm((int64_t)samples[i] * step_scale, 22 - shift)); -} - -static void dca_lfe_fir0_c(float *out, const float *in, const float *coefs) -{ - dca_lfe_fir(out, in, coefs, 32); -} - -static void dca_lfe_fir1_c(float *out, const float *in, const float *coefs) -{ - dca_lfe_fir(out, in, coefs, 64); -} - -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->decode_hf = decode_hf_c; - s->dequantize = dequantize_c; - - if (ARCH_AARCH64) - ff_dcadsp_init_aarch64(s); - if (ARCH_ARM) - ff_dcadsp_init_arm(s); - if (ARCH_X86) - ff_dcadsp_init_x86(s); -} |