545 files changed, 230976 insertions, 0 deletions
diff --git a/audio_codec/libflac/internal.h b/audio_codec/libflac/internal.h new file mode 100644 index 0000000..daa5a61 --- a/dev/null +++ b/audio_codec/libflac/internal.h @@ -0,0 +1,195 @@ +/* + * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> + * + * 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 + */ + +/** + * @file libavutil/internal.h + * common internal API header + */ + +#ifndef AVUTIL_INTERNAL_H +#define AVUTIL_INTERNAL_H + +#if !defined(DEBUG) && !defined(NDEBUG) +# define NDEBUG +#endif + +#include <limits.h> +#include "common.h" + +#ifndef attribute_align_arg +#if (!defined(__ICC) || __ICC > 1110) && AV_GCC_VERSION_AT_LEAST(4,2) +# define attribute_align_arg __attribute__((force_align_arg_pointer)) +#else +# define attribute_align_arg +#endif +#endif + +#ifndef attribute_used +#if AV_GCC_VERSION_AT_LEAST(3,1) +# define attribute_used __attribute__((used)) +#else +# define attribute_used +#endif +#endif + +#ifndef INT16_MIN +#define INT16_MIN (-0x7fff - 1) +#endif + +#ifndef INT16_MAX +#define INT16_MAX 0x7fff +#endif + +#ifndef INT32_MIN +#define INT32_MIN (-0x7fffffff - 1) +#endif + +#ifndef INT32_MAX +#define INT32_MAX 0x7fffffff +#endif + +#ifndef UINT32_MAX +#define UINT32_MAX 0xffffffff +#endif + +#ifndef INT64_MIN +#define INT64_MIN (-0x7fffffffffffffffLL - 1) +#endif + +#ifndef INT64_MAX +#define INT64_MAX INT64_C(9223372036854775807) +#endif + +#ifndef UINT64_MAX +#define UINT64_MAX UINT64_C(0xFFFFFFFFFFFFFFFF) +#endif + +#ifndef INT_BIT +# define INT_BIT (CHAR_BIT * sizeof(int)) +#endif + +#ifndef offsetof +# define offsetof(T, F) ((unsigned int)((char *)&((T *)0)->F)) +#endif + +/* Use to export labels from asm. */ +#define LABEL_MANGLE(a) EXTERN_PREFIX #a + +// Use rip-relative addressing if compiling PIC code on x86-64. +#if ARCH_X86_64 && defined(PIC) +# define LOCAL_MANGLE(a) #a "(%%rip)" +#else +# define LOCAL_MANGLE(a) #a +#endif + +#define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a) + +/* math */ + +extern const uint32_t ff_inverse[257]; + +#if CONFIG_FASTDIV +#define FASTDIV(a,b) ((uint32_t)((((uint64_t)a) * ff_inverse[b]) >> 32)) +#else +#define FASTDIV(a,b) ((a) / (b)) +#endif + +extern const uint8_t ff_sqrt_tab[256]; + +static inline av_const unsigned int ff_sqrt(unsigned int a) +{ + unsigned int b; + + if (a < 255) { + return (ff_sqrt_tab[a + 1] - 1) >> 4; + } else if (a < (1 << 12)) { + b = ff_sqrt_tab[a >> 4] >> 2; + } +#if !CONFIG_SMALL + else if (a < (1 << 14)) { + b = ff_sqrt_tab[a >> 6] >> 1; + } else if (a < (1 << 16)) { + b = ff_sqrt_tab[a >> 8] ; + } +#endif + else { + int s = av_log2_16bit(a >> 16) >> 1; + unsigned int c = a >> (s + 2); + b = ff_sqrt_tab[c >> (s + 8)]; + b = FASTDIV(c, b) + (b << s); + } + + return b - (a < b * b); +} + +#if ARCH_X86 +#define MASK_ABS(mask, level)\ + __asm__ volatile(\ + "cltd \n\t"\ + "xorl %1, %0 \n\t"\ + "subl %1, %0 \n\t"\ + : "+a" (level), "=&d" (mask)\ + ); +#else +#define MASK_ABS(mask, level)\ + mask = level >> 31;\ + level = (level ^ mask) - mask; +#endif + +#if HAVE_CMOV +#define COPY3_IF_LT(x, y, a, b, c, d)\ +__asm__ volatile(\ + "cmpl %0, %3 \n\t"\ + "cmovl %3, %0 \n\t"\ + "cmovl %4, %1 \n\t"\ + "cmovl %5, %2 \n\t"\ + : "+&r" (x), "+&r" (a), "+r" (c)\ + : "r" (y), "r" (b), "r" (d)\ +); +#else +#define COPY3_IF_LT(x, y, a, b, c, d)\ +if ((y) < (x)) {\ + (x) = (y);\ + (a) = (b);\ + (c) = (d);\ +} +#endif + +#define FF_ALLOC_OR_GOTO(ctx, p, size, label)\ +{\ + p = av_malloc(size);\ + if (p == NULL && (size) != 0) {\ + av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\ + goto label;\ + }\ +} + +#define FF_ALLOCZ_OR_GOTO(ctx, p, size, label)\ +{\ + p = av_mallocz(size);\ + if (p == NULL && (size) != 0) {\ + av_log(ctx, AV_LOG_ERROR, "Cannot allocate memory.\n");\ + goto label;\ + }\ +} + +#define NULL_IF_CONFIG_SMALL(x) x + +#endif /* AVUTIL_INTERNAL_H */ |