From 8c53d39e7f0604127bfc96fa1182c8abe3847ac6 Mon Sep 17 00:00:00 2001 From: "Ronald S. Bultje" Date: Sat, 15 Dec 2012 09:46:02 -0800 Subject: lavc: introduce VideoDSPContext Move some functions from dsputil. The idea is that videodsp contains functions that are useful for a large and varied set of video decoders. Currently, it contains emulated_edge_mc() and prefetch(). Signed-off-by: Luca Barbato --- libavcodec/videodsp.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 libavcodec/videodsp.c (limited to 'libavcodec/videodsp.c') diff --git a/libavcodec/videodsp.c b/libavcodec/videodsp.c new file mode 100644 index 0000000000..d14b0a13f1 --- /dev/null +++ b/libavcodec/videodsp.c @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2012 Ronald S. Bultje + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/common.h" +#include "videodsp.h" + +#define BIT_DEPTH 8 +#include "videodsp_template.c" +#undef BIT_DEPTH + +#define BIT_DEPTH 16 +#include "videodsp_template.c" +#undef BIT_DEPTH + +static void just_return(uint8_t *buf, ptrdiff_t stride, int h) +{ +} + +void ff_videodsp_init(VideoDSPContext *ctx, int bpc) +{ + ctx->prefetch = just_return; + if (bpc <= 8) { + ctx->emulated_edge_mc = ff_emulated_edge_mc_8; + } else { + ctx->emulated_edge_mc = ff_emulated_edge_mc_16; + } + + if (ARCH_ARM) + ff_videodsp_init_arm(ctx, bpc); + if (ARCH_PPC) + ff_videodsp_init_ppc(ctx, bpc); + if (ARCH_X86) + ff_videodsp_init_x86(ctx, bpc); +} -- cgit v1.2.3