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utvideo.h
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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 "huffyuvencdsp.h"
34 
35 enum {
36  PRED_NONE = 0,
40 };
41 
42 enum {
43  COMP_NONE = 0,
45 };
46 
47 /*
48  * "Original format" markers.
49  * Based on values gotten from the official VFW encoder.
50  * They are not used during decoding, but they do have
51  * an informative role on seeing what was input
52  * to the encoder.
53  */
54 enum {
55  UTVIDEO_RGB = MKTAG(0x00, 0x00, 0x01, 0x18),
56  UTVIDEO_RGBA = MKTAG(0x00, 0x00, 0x02, 0x18),
57  UTVIDEO_420 = MKTAG('Y', 'V', '1', '2'),
58  UTVIDEO_422 = MKTAG('Y', 'U', 'Y', '2'),
59  UTVIDEO_444 = MKTAG('Y', 'V', '2', '4'),
60 };
61 
62 /* Mapping of libavcodec prediction modes to Ut Video's */
63 extern const int ff_ut_pred_order[5];
64 
65 /* Order of RGB(A) planes in Ut Video */
66 extern const int ff_ut_rgb_order[4];
67 
68 typedef struct UtvideoContext {
69  const AVClass *class;
73 
75  int planes;
76  int slices;
80  int pro;
81 
86 
87 typedef struct HuffEntry {
88  uint16_t sym;
89  uint8_t len;
90  uint32_t code;
91 } HuffEntry;
92 
93 /* Compare huffman tree nodes */
94 int ff_ut_huff_cmp_len(const void *a, const void *b);
95 int ff_ut10_huff_cmp_len(const void *a, const void *b);
96 
97 #endif /* AVCODEC_UTVIDEO_H */
int ff_ut10_huff_cmp_len(const void *a, const void *b)
Definition: utvideo.c:43
int slice_stride
Definition: utvideo.h:82
uint32_t flags
Definition: utvideo.h:74
int slice_bits_size
Definition: utvideo.h:84
const char * b
Definition: vf_curves.c:113
int interlaced
Definition: utvideo.h:78
uint8_t
uint32_t frame_info
Definition: utvideo.h:74
uint32_t code
Definition: magicyuv.c:49
BswapDSPContext bdsp
Definition: utvideo.h:71
AVCodecContext * avctx
Definition: utvideo.h:70
uint32_t frame_info_size
Definition: utvideo.h:74
const int ff_ut_rgb_order[4]
Definition: utvideo.c:35
int compression
Definition: utvideo.h:77
int frame_pred
Definition: utvideo.h:79
uint8_t len
Definition: magicyuv.c:48
int ff_ut_huff_cmp_len(const void *a, const void *b)
Definition: utvideo.c:37
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1675
const int ff_ut_pred_order[5]
Definition: utvideo.c:30
Describe the class of an AVClass context structure.
Definition: log.h:67
uint8_t * slice_bits
Definition: utvideo.h:83
common internal and external API header
uint16_t sym
Definition: utvideo.h:88
HuffYUVEncDSPContext hdsp
Definition: utvideo.h:72
Used to minimize the amount of memory used in order to optimize cache performance.
Definition: snow_dwt.h:42
#define MKTAG(a, b, c, d)
Definition: common.h:342