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dnxhddata.h
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1 /*
2  * VC3/DNxHD decoder.
3  * Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
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_DNXHDDATA_H
23 #define AVCODEC_DNXHDDATA_H
24 
25 #include <stdint.h>
26 #include "avcodec.h"
27 #include "libavutil/internal.h"
28 
29 /** Additional profile info flags */
30 #define DNXHD_INTERLACED (1<<0)
31 #define DNXHD_MBAFF (1<<1)
32 #define DNXHD_444 (1<<2)
33 
34 /** Frame headers, extra 0x00 added to end for parser */
35 #define DNXHD_HEADER_INITIAL 0x000002800100
36 #define DNXHD_HEADER_444 0x000002800200
37 #define DNXHD_HEADER_HR1 0x000002800300
38 #define DNXHD_HEADER_HR2 0x0000038C0300
39 
40 /** Indicate that a CIDEntry value must be read in the bitstream */
41 #define DNXHD_VARIABLE 0
42 
43 typedef struct CIDEntry {
44  int cid;
45  unsigned int width, height;
46  unsigned int frame_size;
47  unsigned int coding_unit_size;
48  uint16_t flags;
50  int bit_depth;
51  int eob_index;
54  const uint16_t *ac_codes;
56  const uint16_t *run_codes;
57  const uint8_t *run_bits, *run;
58  int bit_rates[5]; ///< Helper to choose variants, rounded to nearest 5Mb/s
60 } CIDEntry;
61 
62 extern const CIDEntry ff_dnxhd_cid_table[];
63 
64 int ff_dnxhd_get_cid_table(int cid);
66 void ff_dnxhd_print_profiles(AVCodecContext *avctx, int loglevel);
67 
68 static av_always_inline uint64_t ff_dnxhd_check_header_prefix(uint64_t prefix)
69 {
70  if (prefix == DNXHD_HEADER_INITIAL ||
71  prefix == DNXHD_HEADER_444 ||
72  prefix == DNXHD_HEADER_HR1 ||
73  prefix == DNXHD_HEADER_HR2)
74  return prefix;
75  return 0;
76 }
77 
78 int avpriv_dnxhd_get_frame_size(int cid);
79 int avpriv_dnxhd_get_interlaced(int cid);
81 #endif /* AVCODEC_DNXHDDATA_H */
static av_always_inline uint64_t ff_dnxhd_check_header_prefix(uint64_t prefix)
Definition: dnxhddata.h:68
AVRational frame_rates[5]
Definition: dnxhddata.h:59
#define DNXHD_HEADER_INITIAL
Frame headers, extra 0x00 added to end for parser.
Definition: dnxhddata.h:35
const uint8_t * dc_bits
Definition: dnxhddata.h:53
const uint8_t * luma_weight
Definition: dnxhddata.h:52
int avpriv_dnxhd_get_interlaced(int cid)
Definition: dnxhddata.c:1098
const uint16_t * run_codes
Definition: dnxhddata.h:56
int avpriv_dnxhd_get_frame_size(int cid)
Definition: dnxhddata.c:1090
uint16_t flags
Definition: dnxhddata.h:48
uint8_t
const uint8_t * run_bits
Definition: dnxhddata.h:57
unsigned int coding_unit_size
Definition: dnxhddata.h:47
const uint8_t * ac_bits
Definition: dnxhddata.h:55
const uint8_t * ac_info
Definition: dnxhddata.h:55
const uint16_t * ac_codes
Definition: dnxhddata.h:54
unsigned int width
Definition: dnxhddata.h:45
const uint8_t * dc_codes
Definition: dnxhddata.h:53
const uint8_t * chroma_weight
Definition: dnxhddata.h:52
common internal API header
const uint8_t * run
Definition: dnxhddata.h:57
void ff_dnxhd_print_profiles(AVCodecContext *avctx, int loglevel)
Definition: dnxhddata.c:1139
int ff_dnxhd_find_cid(AVCodecContext *avctx, int bit_depth)
Definition: dnxhddata.c:1113
#define DNXHD_HEADER_HR2
Definition: dnxhddata.h:38
int bit_depth
Definition: dnxhddata.h:50
int index_bits
Definition: dnxhddata.h:49
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1648
void * buf
Definition: avisynth_c.h:553
int eob_index
Definition: dnxhddata.h:51
rational number numerator/denominator
Definition: rational.h:43
unsigned int height
Definition: dnxhddata.h:45
unsigned int frame_size
Definition: dnxhddata.h:46
static unsigned bit_depth(uint64_t mask)
Definition: af_astats.c:142
#define DNXHD_HEADER_444
Definition: dnxhddata.h:36
const CIDEntry ff_dnxhd_cid_table[]
Definition: dnxhddata.c:934
int bit_rates[5]
Helper to choose variants, rounded to nearest 5Mb/s.
Definition: dnxhddata.h:58
#define av_always_inline
Definition: attributes.h:39
int cid
Definition: dnxhddata.h:44
int ff_dnxhd_get_cid_table(int cid)
Definition: dnxhddata.c:1081
uint64_t avpriv_dnxhd_parse_header_prefix(const uint8_t *buf)
Definition: dnxhddata.c:1106
#define DNXHD_HEADER_HR1
Definition: dnxhddata.h:37