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146 lines
5.7 KiB
146 lines
5.7 KiB
/* |
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* Copyright (c) 2014 RISC OS Open Ltd |
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* Author: Ben Avison <bavison@riscosopen.org> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <stdint.h> |
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#include "libavutil/arm/cpu.h" |
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#include "libavutil/attributes.h" |
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#include "libavcodec/mlpdsp.h" |
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void ff_mlp_filter_channel_arm(int32_t *state, const int32_t *coeff, |
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int firorder, int iirorder, |
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unsigned int filter_shift, int32_t mask, |
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int blocksize, int32_t *sample_buffer); |
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void ff_mlp_rematrix_channel_arm(int32_t *samples, |
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const int32_t *coeffs, |
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const uint8_t *bypassed_lsbs, |
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const int8_t *noise_buffer, |
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int index, |
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unsigned int dest_ch, |
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uint16_t blockpos, |
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unsigned int maxchan, |
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int matrix_noise_shift, |
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int access_unit_size_pow2, |
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int32_t mask); |
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#define DECLARE_PACK(order,channels,shift) \ |
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int32_t ff_mlp_pack_output_##order##order_##channels##ch_##shift##shift_armv6(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int); |
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#define ENUMERATE_PACK(order,channels,shift) \ |
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ff_mlp_pack_output_##order##order_##channels##ch_##shift##shift_armv6, |
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#define PACK_CHANNELS(macro,order,channels) \ |
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macro(order,channels,0) \ |
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macro(order,channels,1) \ |
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macro(order,channels,2) \ |
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macro(order,channels,3) \ |
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macro(order,channels,4) \ |
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macro(order,channels,5) \ |
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macro(order,channels,mixed) |
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#define PACK_ORDER(macro,order) \ |
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PACK_CHANNELS(macro,order,2) \ |
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PACK_CHANNELS(macro,order,6) \ |
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PACK_CHANNELS(macro,order,8) |
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#define PACK_ALL(macro) \ |
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PACK_ORDER(macro,outof) \ |
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PACK_ORDER(macro,in) |
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PACK_ALL(DECLARE_PACK) |
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#define ff_mlp_pack_output_outoforder_2ch_mixedshift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_mixedshift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_mixedshift_armv6 0 |
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#if CONFIG_THUMB |
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#define ff_mlp_pack_output_outoforder_2ch_0shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_2ch_1shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_2ch_2shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_2ch_3shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_2ch_4shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_2ch_5shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_0shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_1shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_2shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_3shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_4shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_6ch_5shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_0shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_1shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_2shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_3shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_4shift_armv6 0 |
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#define ff_mlp_pack_output_outoforder_8ch_5shift_armv6 0 |
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#endif |
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static int32_t (*mlp_select_pack_output_armv6(uint8_t *ch_assign, |
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int8_t *output_shift, |
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uint8_t max_matrix_channel, |
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int is32))(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int) |
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{ |
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int ch_index; |
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int shift = output_shift[0] < 0 || output_shift[0] > 5 ? 6 : output_shift[0]; |
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int inorder = 1; |
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static int32_t (*const routine[2*3*7])(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int) = { |
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PACK_ALL(ENUMERATE_PACK) |
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}; |
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int i; |
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if (!is32) // don't support 16-bit output (it's not used by TrueHD) |
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return ff_mlp_pack_output; |
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switch (max_matrix_channel) { |
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case 1: |
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ch_index = 0; |
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break; |
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case 5: |
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ch_index = 1; |
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break; |
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case 7: |
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ch_index = 2; |
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break; |
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default: |
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return ff_mlp_pack_output; |
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} |
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for (i = 0; i <= max_matrix_channel; i++) { |
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if (shift != 6 && output_shift[i] != shift) |
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shift = 6; // indicate mixed shifts |
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if (ch_assign[i] != i) |
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inorder = 0; |
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} |
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#if CONFIG_THUMB |
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if (!inorder) |
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return ff_mlp_pack_output; // can't currently handle an order array except in ARM mode |
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#else |
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if (shift == 6 && !inorder) |
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return ff_mlp_pack_output; // can't currently handle both an order array and a shift array |
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#endif |
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return routine[(inorder*3+ch_index)*7+shift]; |
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} |
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av_cold void ff_mlpdsp_init_arm(MLPDSPContext *c) |
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{ |
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int cpu_flags = av_get_cpu_flags(); |
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if (have_armv5te(cpu_flags)) { |
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c->mlp_filter_channel = ff_mlp_filter_channel_arm; |
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c->mlp_rematrix_channel = ff_mlp_rematrix_channel_arm; |
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} |
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if (have_armv6(cpu_flags)) |
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c->mlp_select_pack_output = mlp_select_pack_output_armv6; |
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}
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