FFmpeg: libavcodec/x86/mpegvideoenc.c Source File

00001 /*
00002  * The simplest mpeg encoder (well, it was the simplest!)
00003  * Copyright (c) 2000,2001 Fabrice Bellard
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00022 #include "libavutil/cpu.h"
00023 #include "libavutil/x86/asm.h"
00024 #include "libavutil/x86/cpu.h"
00025 #include "libavcodec/avcodec.h"
00026 #include "libavcodec/dsputil.h"
00027 #include "libavcodec/mpegvideo.h"
00028 #include "dsputil_mmx.h"
00029 
00030 extern uint16_t ff_inv_zigzag_direct16[64];
00031 
00032 #if HAVE_MMX_INLINE
00033 #define COMPILE_TEMPLATE_MMXEXT 0
00034 #define COMPILE_TEMPLATE_SSE2   0
00035 #define COMPILE_TEMPLATE_SSSE3  0
00036 #define RENAME(a) a ## _MMX
00037 #define RENAMEl(a) a ## _mmx
00038 #include "mpegvideoenc_template.c"
00039 #endif /* HAVE_MMX_INLINE */
00040 
00041 #if HAVE_MMXEXT_INLINE
00042 #undef COMPILE_TEMPLATE_SSSE3
00043 #undef COMPILE_TEMPLATE_SSE2
00044 #undef COMPILE_TEMPLATE_MMXEXT
00045 #define COMPILE_TEMPLATE_MMXEXT 1
00046 #define COMPILE_TEMPLATE_SSE2   0
00047 #define COMPILE_TEMPLATE_SSSE3  0
00048 #undef RENAME
00049 #undef RENAMEl
00050 #define RENAME(a) a ## _MMX2
00051 #define RENAMEl(a) a ## _mmx2
00052 #include "mpegvideoenc_template.c"
00053 #endif /* HAVE_MMXEXT_INLINE */
00054 
00055 #if HAVE_SSE2_INLINE
00056 #undef COMPILE_TEMPLATE_MMXEXT
00057 #undef COMPILE_TEMPLATE_SSE2
00058 #undef COMPILE_TEMPLATE_SSSE3
00059 #define COMPILE_TEMPLATE_MMXEXT 0
00060 #define COMPILE_TEMPLATE_SSE2   1
00061 #define COMPILE_TEMPLATE_SSSE3  0
00062 #undef RENAME
00063 #undef RENAMEl
00064 #define RENAME(a) a ## _SSE2
00065 #define RENAMEl(a) a ## _sse2
00066 #include "mpegvideoenc_template.c"
00067 #endif /* HAVE_SSE2_INLINE */
00068 
00069 #if HAVE_SSSE3_INLINE
00070 #undef COMPILE_TEMPLATE_MMXEXT
00071 #undef COMPILE_TEMPLATE_SSE2
00072 #undef COMPILE_TEMPLATE_SSSE3
00073 #define COMPILE_TEMPLATE_MMXEXT 0
00074 #define COMPILE_TEMPLATE_SSE2   1
00075 #define COMPILE_TEMPLATE_SSSE3  1
00076 #undef RENAME
00077 #undef RENAMEl
00078 #define RENAME(a) a ## _SSSE3
00079 #define RENAMEl(a) a ## _sse2
00080 #include "mpegvideoenc_template.c"
00081 #endif /* HAVE_SSSE3_INLINE */
00082 
00083 void ff_dct_encode_init_x86(MpegEncContext *s)
00084 {
00085     int mm_flags = av_get_cpu_flags();
00086     const int dct_algo = s->avctx->dct_algo;
00087 
00088     if (dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX) {
00089 #if HAVE_MMX_INLINE
00090         if (INLINE_MMX(mm_flags))
00091             s->dct_quantize = dct_quantize_MMX;
00092 #endif
00093 #if HAVE_MMXEXT_INLINE
00094         if (INLINE_MMXEXT(mm_flags))
00095             s->dct_quantize = dct_quantize_MMX2;
00096 #endif
00097 #if HAVE_SSE2_INLINE
00098         if (INLINE_SSE2(mm_flags))
00099             s->dct_quantize = dct_quantize_SSE2;
00100 #endif
00101 #if HAVE_SSSE3_INLINE
00102         if (INLINE_SSSE3(mm_flags))
00103             s->dct_quantize = dct_quantize_SSSE3;
00104 #endif
00105     }
00106 }