• stream_encoder.h
  • /* libFLAC - Free Lossless Audio Codec library
     * Copyright (C) 2000-2009  Josh Coalson
     * Copyright (C) 2011-2025  Xiph.Org Foundation
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     *
     * - Redistributions of source code must retain the above copyright
     * notice, this list of conditions and the following disclaimer.
     *
     * - Redistributions in binary form must reproduce the above copyright
     * notice, this list of conditions and the following disclaimer in the
     * documentation and/or other materials provided with the distribution.
     *
     * - Neither the name of the Xiph.org Foundation nor the names of its
     * contributors may be used to endorse or promote products derived from
     * this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
     * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef FLAC__PRIVATE__STREAM_ENCODER_H
    #define FLAC__PRIVATE__STREAM_ENCODER_H
    
    #ifdef HAVE_CONFIG_H
    #include <config.h>
    #endif
    
    /*
     * This is used to avoid overflow with unusual signals in 32-bit
     * accumulator in the *precompute_partition_info_sums_* functions.
     */
    #define FLAC__MAX_EXTRA_RESIDUAL_BPS 4
    #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
    #define FLAC__STREAM_ENCODER_MAX_THREADS 16
    #define FLAC__STREAM_ENCODER_MAX_THREADTASKS 34
    #else
    #define FLAC__STREAM_ENCODER_MAX_THREADS 64
    #define FLAC__STREAM_ENCODER_MAX_THREADTASKS 130
    #endif
    
    #if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
    #include "private/cpu.h"
    #include "FLAC/format.h"
    
    #ifdef FLAC__SSE2_SUPPORTED
    extern void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
    			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
    #endif
    
    #ifdef FLAC__SSSE3_SUPPORTED
    extern void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
    			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
    #endif
    
    #ifdef FLAC__AVX2_SUPPORTED
    extern void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
    			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
    #endif
    
    #endif
    
    #endif