From 7ca3e5203f133eb41a0b5c3a1d753a7427ba72e7 Mon Sep 17 00:00:00 2001 From: Vittorio Giovara Date: Sat, 25 Apr 2015 23:58:57 +0100 Subject: Hap decoder and encoder Signed-off-by: Vittorio Giovara --- libavcodec/hap.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 libavcodec/hap.h (limited to 'libavcodec/hap.h') diff --git a/libavcodec/hap.h b/libavcodec/hap.h new file mode 100644 index 0000000000..1250a6f683 --- /dev/null +++ b/libavcodec/hap.h @@ -0,0 +1,65 @@ +/* + * Vidvox Hap + * Copyright (C) 2015 Vittorio Giovara + * + * 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 + */ + +#ifndef AVCODEC_HAP_H +#define AVCODEC_HAP_H + +#include + +#include "libavutil/opt.h" + +#include "bytestream.h" +#include "texturedsp.h" + +typedef struct HapContext { + AVClass *class; + + TextureDSPContext dxtc; + GetByteContext gbc; + PutByteContext pbc; + + int section_type; /* Header type */ + + int tex_rat; /* Compression ratio */ + const uint8_t *tex_data; /* Compressed texture */ + uint8_t *tex_buf; /* Uncompressed texture */ + size_t tex_size; /* Size of the compressed texture */ + + uint8_t *snappied; /* Buffer interacting with snappy */ + size_t max_snappy; /* Maximum compressed size for snappy buffer */ + + /* Pointer to the selected compress or decompress function */ + int (*tex_fun)(uint8_t *dst, ptrdiff_t stride, const uint8_t *block); +} HapContext; + +enum { + HAP_FMT_RGBDXT1 = 0x0B, + HAP_FMT_RGBADXT5 = 0x0E, + HAP_FMT_YCOCGDXT5 = 0x0F, +}; + +enum { + HAP_COMP_NONE = 0xA0, + HAP_COMP_SNAPPY = 0xB0, + HAP_COMP_COMPLEX = 0xC0, +}; + +#endif /* AVCODEC_HAP_H */ -- cgit v1.2.3