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146 lines
5.7 KiB
C
146 lines
5.7 KiB
C
/*
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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 FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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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