Libav 0.7.1
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00001 /* 00002 * Format Conversion Utils 00003 * Copyright (c) 2000, 2001 Fabrice Bellard 00004 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> 00005 * 00006 * This file is part of Libav. 00007 * 00008 * Libav is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Lesser General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2.1 of the License, or (at your option) any later version. 00012 * 00013 * Libav is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Lesser General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU Lesser General Public 00019 * License along with Libav; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00021 */ 00022 00023 #ifndef AVCODEC_FMTCONVERT_H 00024 #define AVCODEC_FMTCONVERT_H 00025 00026 #include "avcodec.h" 00027 00028 typedef struct FmtConvertContext { 00038 void (*int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len); 00039 00053 void (*float_to_int16)(int16_t *dst, const float *src, long len); 00054 00069 void (*float_to_int16_interleave)(int16_t *dst, const float **src, 00070 long len, int channels); 00071 00075 void (*float_interleave)(float *dst, const float **src, unsigned int len, 00076 int channels); 00077 } FmtConvertContext; 00078 00079 void ff_float_interleave_c(float *dst, const float **src, unsigned int len, 00080 int channels); 00081 00082 void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx); 00083 00084 void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx); 00085 void ff_fmt_convert_init_altivec(FmtConvertContext *c, AVCodecContext *avctx); 00086 void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx); 00087 00088 #endif /* AVCODEC_FMTCONVERT_H */