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3594788b71
This is actually internal utvideo format. Allows to make use of SIMD for median prediction for rgb(a) formats, thus speeding up decoding. Simplifies code, eases further developement and maintenance. Update FATE because of pixel format switch. Signed-off-by: Paul B Mahol <onemda@gmail.com>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/*
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* Common Ut Video header
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* Copyright (c) 2011 Konstantin Shishkov
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_UTVIDEO_H
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#define AVCODEC_UTVIDEO_H
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/**
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* @file
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* Common Ut Video header
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*/
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#include "libavutil/common.h"
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#include "avcodec.h"
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#include "bswapdsp.h"
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#include "lossless_videodsp.h"
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#include "lossless_videoencdsp.h"
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enum {
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PRED_NONE = 0,
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PRED_LEFT,
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PRED_GRADIENT,
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PRED_MEDIAN,
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};
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enum {
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COMP_NONE = 0,
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COMP_HUFF,
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};
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/*
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* "Original format" markers.
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* Based on values gotten from the official VFW encoder.
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* They are not used during decoding, but they do have
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* an informative role on seeing what was input
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* to the encoder.
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*/
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enum {
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UTVIDEO_RGB = MKTAG(0x00, 0x00, 0x01, 0x18),
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UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18),
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UTVIDEO_420 = MKTAG('Y', 'V', '1', '2'),
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UTVIDEO_422 = MKTAG('Y', 'U', 'Y', '2'),
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UTVIDEO_444 = MKTAG('Y', 'V', '2', '4'),
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};
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/* Mapping of libavcodec prediction modes to Ut Video's */
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extern const int ff_ut_pred_order[5];
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typedef struct UtvideoContext {
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const AVClass *class;
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AVCodecContext *avctx;
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BswapDSPContext bdsp;
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LLVidDSPContext llviddsp;
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LLVidEncDSPContext llvidencdsp;
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uint32_t frame_info_size, flags, frame_info;
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int planes;
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int slices;
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int compression;
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int interlaced;
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int frame_pred;
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int pro;
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ptrdiff_t slice_stride;
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uint8_t *slice_bits, *slice_buffer[4];
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int slice_bits_size;
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} UtvideoContext;
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typedef struct HuffEntry {
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uint16_t sym;
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uint8_t len;
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uint32_t code;
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} HuffEntry;
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/* Compare huffman tree nodes */
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int ff_ut_huff_cmp_len(const void *a, const void *b);
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int ff_ut10_huff_cmp_len(const void *a, const void *b);
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#endif /* AVCODEC_UTVIDEO_H */
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