Libav 0.7.1
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00001 /* 00002 * ARM optimized Format Conversion Utils 00003 * 00004 * This file is part of Libav. 00005 * 00006 * Libav is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * Libav is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with Libav; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #include <stdint.h> 00022 00023 #include "libavcodec/avcodec.h" 00024 #include "libavcodec/fmtconvert.h" 00025 00026 void ff_int32_to_float_fmul_scalar_neon(float *dst, const int *src, 00027 float mul, int len); 00028 00029 void ff_float_to_int16_neon(int16_t *dst, const float *src, long len); 00030 void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int); 00031 00032 void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len); 00033 00034 void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx) 00035 { 00036 if (HAVE_ARMVFP && HAVE_ARMV6) { 00037 c->float_to_int16 = ff_float_to_int16_vfp; 00038 } 00039 00040 if (HAVE_NEON) { 00041 c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_neon; 00042 00043 if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { 00044 c->float_to_int16 = ff_float_to_int16_neon; 00045 c->float_to_int16_interleave = ff_float_to_int16_interleave_neon; 00046 } 00047 } 00048 }