1 /* 2 * Common Ut Video header 3 * Copyright (c) 2011 Konstantin Shishkov 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 #ifndef AVCODEC_UTVIDEO_H 23 #define AVCODEC_UTVIDEO_H 24 25 /** 26 * @file 27 * Common Ut Video header 28 */ 29 30 #include "libavutil/common.h" 31 #include "avcodec.h" 32 #include "bswapdsp.h" 33 #include "utvideodsp.h" 34 #include "lossless_videodsp.h" 35 #include "lossless_videoencdsp.h" 36 37 enum { 38 PRED_NONE = 0, 39 PRED_LEFT, 40 PRED_GRADIENT, 41 PRED_MEDIAN, 42 }; 43 44 enum { 45 COMP_NONE = 0, 46 COMP_HUFF, 47 }; 48 49 /* 50 * "Original format" markers. 51 * Based on values gotten from the official VFW encoder. 52 * They are not used during decoding, but they do have 53 * an informative role on seeing what was input 54 * to the encoder. 55 */ 56 enum { 57 UTVIDEO_RGB = MKTAG(0x00, 0x00, 0x01, 0x18), 58 UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18), 59 UTVIDEO_420 = MKTAG('Y', 'V', '1', '2'), 60 UTVIDEO_422 = MKTAG('Y', 'U', 'Y', '2'), 61 UTVIDEO_444 = MKTAG('Y', 'V', '2', '4'), 62 }; 63 64 typedef struct UtvideoContext { 65 const AVClass *class; 66 AVCodecContext *avctx; 67 UTVideoDSPContext utdsp; 68 BswapDSPContext bdsp; 69 LLVidDSPContext llviddsp; 70 LLVidEncDSPContext llvidencdsp; 71 72 uint32_t frame_info_size, flags, frame_info, offset; 73 int planes; 74 int slices; 75 int compression; 76 int interlaced; 77 int frame_pred; 78 int pro; 79 int pack; 80 81 ptrdiff_t slice_stride; 82 uint8_t *slice_bits, *slice_buffer[4]; 83 int slice_bits_size; 84 85 const uint8_t *packed_stream[4][256]; 86 size_t packed_stream_size[4][256]; 87 const uint8_t *control_stream[4][256]; 88 size_t control_stream_size[4][256]; 89 } UtvideoContext; 90 91 #endif /* AVCODEC_UTVIDEO_H */ 92