mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
bf8bb94322
* qatar/master: ffmpeg: get rid of the -vglobal option. dct32: Add AVX implementation of 32-point DCT dct32: Change pass 6 permutation to allow for AVX implementation dct32: port SSE 32-point DCT to YASM multiple inclusion guard cleanup avio: document buffer must created with av_malloc() and friends avio: check AVIOContext malloc failure swscale: point out an alternative to sws_getContext svq3: Do initialization after parsing the extradata add changelog entries for 0.7_beta2 mp3lame: add #include required for AV_RB32 macro. Conflicts: Changelog libavcodec/svq3.c libavcodec/x86/dct32_sse.c libavfilter/vsrc_buffer.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
|
|
* Header file for hardcoded AAC cube-root table
|
|
*
|
|
* Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef AVCODEC_CBRT_TABLEGEN_H
|
|
#define AVCODEC_CBRT_TABLEGEN_H
|
|
|
|
#include <stdint.h>
|
|
#include <math.h>
|
|
|
|
#if CONFIG_HARDCODED_TABLES
|
|
#define cbrt_tableinit()
|
|
#include "libavcodec/cbrt_tables.h"
|
|
#else
|
|
static uint32_t cbrt_tab[1 << 13];
|
|
|
|
static void cbrt_tableinit(void)
|
|
{
|
|
if (!cbrt_tab[(1<<13) - 1]) {
|
|
int i;
|
|
for (i = 0; i < 1<<13; i++) {
|
|
union {
|
|
float f;
|
|
uint32_t i;
|
|
} f;
|
|
f.f = cbrtf(i) * i;
|
|
cbrt_tab[i] = f.i;
|
|
}
|
|
}
|
|
}
|
|
#endif /* CONFIG_HARDCODED_TABLES */
|
|
|
|
#endif /* AVCODEC_CBRT_TABLEGEN_H */
|