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105 lines
2.7 KiB
C
Executable File
105 lines
2.7 KiB
C
Executable File
/*
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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 "utvideodsp.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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UTVideoDSPContext utdsp;
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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, offset;
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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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int pack;
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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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const uint8_t *packed_stream[4][256];
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size_t packed_stream_size[4][256];
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const uint8_t *control_stream[4][256];
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size_t control_stream_size[4][256];
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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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