xine-lib  1.2.10
mpeg2.h
Go to the documentation of this file.
1 /*
2  * mpeg2.h
3  * Copyright (C) 2000-2004 Michel Lespinasse <walken@zoy.org>
4  * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
5  *
6  * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
7  * See http://libmpeg2.sourceforge.net/ for updates.
8  *
9  * mpeg2dec is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * mpeg2dec is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  */
23 
24 #ifndef MPEG2_H
25 #define MPEG2_H
26 
27 #define MPEG2_VERSION(a,b,c) (((a)<<16)|((b)<<8)|(c))
28 #define MPEG2_RELEASE MPEG2_VERSION (0, 4, 1) /* 0.4.1 */
29 
30 #define SEQ_FLAG_MPEG2 1
31 #define SEQ_FLAG_CONSTRAINED_PARAMETERS 2
32 #define SEQ_FLAG_PROGRESSIVE_SEQUENCE 4
33 #define SEQ_FLAG_LOW_DELAY 8
34 #define SEQ_FLAG_COLOUR_DESCRIPTION 16
35 
36 #define SEQ_MASK_VIDEO_FORMAT 0xe0
37 #define SEQ_VIDEO_FORMAT_COMPONENT 0
38 #define SEQ_VIDEO_FORMAT_PAL 0x20
39 #define SEQ_VIDEO_FORMAT_NTSC 0x40
40 #define SEQ_VIDEO_FORMAT_SECAM 0x60
41 #define SEQ_VIDEO_FORMAT_MAC 0x80
42 #define SEQ_VIDEO_FORMAT_UNSPECIFIED 0xa0
43 
44 typedef struct mpeg2_sequence_s {
45  unsigned int width, height;
46  unsigned int chroma_width, chroma_height;
47  unsigned int byte_rate;
48  unsigned int vbv_buffer_size;
49  uint32_t flags;
50 
53  unsigned int pixel_width, pixel_height;
54  unsigned int frame_period;
55 
61 
62 #define GOP_FLAG_DROP_FRAME 1
63 #define GOP_FLAG_BROKEN_LINK 2
64 #define GOP_FLAG_CLOSED_GOP 4
65 
66 typedef struct mpeg2_gop_s {
67  uint8_t hours;
68  uint8_t minutes;
69  uint8_t seconds;
70  uint8_t pictures;
71  uint32_t flags;
72 } mpeg2_gop_t;
73 
74 #define PIC_MASK_CODING_TYPE 7
75 #define PIC_FLAG_CODING_TYPE_I 1
76 #define PIC_FLAG_CODING_TYPE_P 2
77 #define PIC_FLAG_CODING_TYPE_B 3
78 #define PIC_FLAG_CODING_TYPE_D 4
79 
80 #define PIC_FLAG_TOP_FIELD_FIRST 8
81 #define PIC_FLAG_PROGRESSIVE_FRAME 16
82 #define PIC_FLAG_COMPOSITE_DISPLAY 32
83 #define PIC_FLAG_SKIP 64
84 #define PIC_FLAG_TAGS 128
85 #define PIC_MASK_COMPOSITE_DISPLAY 0xfffff000
86 
87 typedef struct mpeg2_picture_s {
88  unsigned int temporal_reference;
89  unsigned int nb_fields;
90  uint32_t tag, tag2;
91  uint32_t flags;
92  struct {
93  int x, y;
94  } display_offset[3];
96 
97 typedef struct mpeg2_fbuf_s {
98  uint8_t * buf[3];
99  void * id;
100 } mpeg2_fbuf_t;
101 
102 typedef struct mpeg2_info_s {
104  const mpeg2_gop_t * gop;
112  const uint8_t * user_data;
113  unsigned int user_data_len;
114 } mpeg2_info_t;
115 
116 typedef struct mpeg2dec_s mpeg2dec_t;
118 
119 typedef enum {
132 } mpeg2_state_t;
133 
134 typedef struct mpeg2_convert_init_s {
135  unsigned int id_size;
136  unsigned int buf_size[3];
137  void (* start) (void * id, const mpeg2_fbuf_t * fbuf,
138  const mpeg2_picture_t * picture, const mpeg2_gop_t * gop);
139  void (* copy) (void * id, uint8_t * const * src, unsigned int v_offset);
141 typedef enum {
146 typedef int mpeg2_convert_t (int stage, void * id,
147  const mpeg2_sequence_t * sequence, int stride,
148  uint32_t accel, void * arg,
149  mpeg2_convert_init_t * result);
150 int mpeg2_convert (mpeg2dec_t * mpeg2dec, mpeg2_convert_t convert, void * arg);
151 int mpeg2_stride (mpeg2dec_t * mpeg2dec, int stride);
152 void mpeg2_set_buf (mpeg2dec_t * mpeg2dec, uint8_t * buf[3], void * id);
153 void mpeg2_custom_fbuf (mpeg2dec_t * mpeg2dec, int custom_fbuf);
154 
155 #define MPEG2_ACCEL_X86_MMX 1
156 #define MPEG2_ACCEL_X86_3DNOW 2
157 #define MPEG2_ACCEL_X86_MMXEXT 4
158 #define MPEG2_ACCEL_X86_SSE2 8
159 #define MPEG2_ACCEL_X86_SSE3 16
160 #define MPEG2_ACCEL_PPC_ALTIVEC 1
161 #define MPEG2_ACCEL_ALPHA 1
162 #define MPEG2_ACCEL_ALPHA_MVI 2
163 #define MPEG2_ACCEL_SPARC_VIS 1
164 #define MPEG2_ACCEL_SPARC_VIS2 2
165 #define MPEG2_ACCEL_DETECT 0x80000000
166 
167 uint32_t mpeg2_accel (uint32_t accel);
168 mpeg2dec_t * mpeg2_init (void);
169 const mpeg2_info_t * mpeg2_info (mpeg2dec_t * mpeg2dec);
170 void mpeg2_close (mpeg2dec_t * mpeg2dec);
171 
172 void mpeg2_buffer (mpeg2dec_t * mpeg2dec, uint8_t * start, uint8_t * end);
173 int mpeg2_getpos (mpeg2dec_t * mpeg2dec);
175 
176 void mpeg2_reset (mpeg2dec_t * mpeg2dec, int full_reset);
177 void mpeg2_skip (mpeg2dec_t * mpeg2dec, int skip);
178 void mpeg2_slice_region (mpeg2dec_t * mpeg2dec, int start, int end);
179 
180 void mpeg2_tag_picture (mpeg2dec_t * mpeg2dec, uint32_t tag, uint32_t tag2);
181 
182 void mpeg2_init_fbuf (mpeg2_decoder_t * decoder, uint8_t * current_fbuf[3],
183  uint8_t * forward_fbuf[3], uint8_t * backward_fbuf[3]);
184 void mpeg2_slice (mpeg2_decoder_t * decoder, int code, const uint8_t * buffer);
185 int mpeg2_guess_aspect (const mpeg2_sequence_t * sequence,
186  unsigned int * pixel_width,
187  unsigned int * pixel_height);
188 
189 typedef enum {
195 } mpeg2_alloc_t;
196 
197 void * mpeg2_malloc (unsigned size, mpeg2_alloc_t reason);
198 void mpeg2_free (void * buf);
199 void mpeg2_malloc_hooks (void * malloc (unsigned, mpeg2_alloc_t),
200  int free (void *));
201 
202 #endif /* MPEG2_H */
mpeg2_picture_s::tag
uint32_t tag
Definition: mpeg2.h:90
mpeg2_sequence_s::transfer_characteristics
uint8_t transfer_characteristics
Definition: mpeg2.h:58
mpeg2_sequence_s::display_height
unsigned int display_height
Definition: mpeg2.h:52
mpeg2_custom_fbuf
void mpeg2_custom_fbuf(mpeg2dec_t *mpeg2dec, int custom_fbuf)
Definition: decode.c:350
MPEG2_CONVERT_STRIDE
@ MPEG2_CONVERT_STRIDE
Definition: mpeg2.h:143
mpeg2_info_s::current_picture_2nd
const mpeg2_picture_t * current_picture_2nd
Definition: mpeg2.h:106
mpeg2_picture_s::display_offset
struct mpeg2_picture_s::@48 display_offset[3]
mpeg2dec_s
Definition: mpeg2.h:29
MPEG2_ALLOC_CONVERTED
@ MPEG2_ALLOC_CONVERTED
Definition: mpeg2.h:194
mpeg2_malloc
void * mpeg2_malloc(unsigned size, mpeg2_alloc_t reason)
Definition: alloc.c:32
mpeg2_close
void mpeg2_close(mpeg2dec_t *mpeg2dec)
Definition: decode.c:811
mpeg2_sequence_s::picture_width
unsigned int picture_width
Definition: mpeg2.h:51
MPEG2_ALLOC_CONVERT_ID
@ MPEG2_ALLOC_CONVERT_ID
Definition: mpeg2.h:193
mpeg2_info
const mpeg2_info_t * mpeg2_info(mpeg2dec_t *mpeg2dec)
Definition: decode.c:38
mpeg2_info_s::display_picture
const mpeg2_picture_t * display_picture
Definition: mpeg2.h:108
mpeg2_picture_s::flags
uint32_t flags
Definition: mpeg2.h:91
mpeg2_free
void mpeg2_free(void *buf)
Definition: alloc.c:56
mpeg2_gop_s::flags
uint32_t flags
Definition: mpeg2.h:71
mpeg2_picture_s::tag2
uint32_t tag2
Definition: mpeg2.h:90
mpeg2_malloc_hooks
void mpeg2_malloc_hooks(void *malloc(unsigned, mpeg2_alloc_t), int free(void *))
Definition: alloc.c:65
STATE_SEQUENCE_MODIFIED
@ STATE_SEQUENCE_MODIFIED
Definition: mpeg2.h:123
MPEG2_CONVERT_SET
@ MPEG2_CONVERT_SET
Definition: mpeg2.h:142
mpeg2_fbuf_s::id
void * id
Definition: mpeg2.h:99
mpeg2_alloc_t
mpeg2_alloc_t
Definition: mpeg2.h:189
mpeg2_convert_init_s
Definition: mpeg2.h:134
mpeg2_picture_s::nb_fields
unsigned int nb_fields
Definition: mpeg2.h:89
STATE_GOP
@ STATE_GOP
Definition: mpeg2.h:124
mpeg2_decoder_s
Definition: mpeg2_internal.h:64
mpeg2_sequence_t
struct mpeg2_sequence_s mpeg2_sequence_t
mpeg2_sequence_s::vbv_buffer_size
unsigned int vbv_buffer_size
Definition: mpeg2.h:48
mpeg2_info_s::user_data
const uint8_t * user_data
Definition: mpeg2.h:112
mpeg2_guess_aspect
int mpeg2_guess_aspect(const mpeg2_sequence_t *sequence, unsigned int *pixel_width, unsigned int *pixel_height)
Definition: header.c:336
mpeg2_init
void mpeg2_init(mpeg2dec_t *mpeg2dec, xine_video_port_t *output)
Definition: decode.c:57
MPEG2_CONVERT_START
@ MPEG2_CONVERT_START
Definition: mpeg2.h:144
mpeg2_info_s::display_picture_2nd
const mpeg2_picture_t * display_picture_2nd
Definition: mpeg2.h:109
mpeg2_convert_init_s::copy
void(* copy)(void *id, uint8_t *const *src, unsigned int v_offset)
Definition: mpeg2.h:139
STATE_SEQUENCE
@ STATE_SEQUENCE
Definition: mpeg2.h:121
mpeg2_sequence_s::height
unsigned int height
Definition: mpeg2.h:45
STATE_BUFFER
@ STATE_BUFFER
Definition: mpeg2.h:120
mpeg2_fbuf_s::buf
uint8_t * buf[3]
Definition: mpeg2.h:98
mpeg2_slice
void mpeg2_slice(mpeg2_decoder_t *decoder, int code, const uint8_t *buffer)
Definition: slice.c:1772
mpeg2_sequence_s::chroma_width
unsigned int chroma_width
Definition: mpeg2.h:46
mpeg2_sequence_s::frame_period
unsigned int frame_period
Definition: mpeg2.h:54
STATE_SLICE
@ STATE_SLICE
Definition: mpeg2.h:128
STATE_SLICE_1ST
@ STATE_SLICE_1ST
Definition: mpeg2.h:126
mpeg2_convert_init_s::buf_size
unsigned int buf_size[3]
Definition: mpeg2.h:136
mpeg2_gop_s::seconds
uint8_t seconds
Definition: mpeg2.h:69
mpeg2_info_s::display_fbuf
const mpeg2_fbuf_t * display_fbuf
Definition: mpeg2.h:110
mpeg2_picture_t
struct mpeg2_picture_s mpeg2_picture_t
mpeg2_gop_s::pictures
uint8_t pictures
Definition: mpeg2.h:70
mpeg2_parse
mpeg2_state_t mpeg2_parse(mpeg2dec_t *mpeg2dec)
Definition: decode.c:152
mpeg2_skip
void mpeg2_skip(mpeg2dec_t *mpeg2dec, int skip)
Definition: decode.c:355
mpeg2_sequence_s::chroma_height
unsigned int chroma_height
Definition: mpeg2.h:46
mpeg2_info_s::discard_fbuf
const mpeg2_fbuf_t * discard_fbuf
Definition: mpeg2.h:111
mpeg2_sequence_s::display_width
unsigned int display_width
Definition: mpeg2.h:52
mpeg2_gop_s::minutes
uint8_t minutes
Definition: mpeg2.h:68
mpeg2_sequence_s::picture_height
unsigned int picture_height
Definition: mpeg2.h:51
mpeg2_accel
uint32_t mpeg2_accel(uint32_t accel)
Definition: decode.c:379
mpeg2_convert_init_s::start
void(* start)(void *id, const mpeg2_fbuf_t *fbuf, const mpeg2_picture_t *picture, const mpeg2_gop_t *gop)
Definition: mpeg2.h:137
mpeg2_picture_s::x
int x
Definition: mpeg2.h:93
mpeg2_init_fbuf
void mpeg2_init_fbuf(mpeg2_decoder_t *decoder, uint8_t *current_fbuf[3], uint8_t *forward_fbuf[3], uint8_t *backward_fbuf[3])
Definition: slice.c:1587
mpeg2_sequence_s::matrix_coefficients
uint8_t matrix_coefficients
Definition: mpeg2.h:59
mpeg2_convert_init_t
struct mpeg2_convert_init_s mpeg2_convert_init_t
mpeg2_sequence_s::byte_rate
unsigned int byte_rate
Definition: mpeg2.h:47
STATE_PICTURE
@ STATE_PICTURE
Definition: mpeg2.h:125
mpeg2_sequence_s::pixel_width
unsigned int pixel_width
Definition: mpeg2.h:53
mpeg2_picture_s
Definition: mpeg2.h:87
STATE_PICTURE_2ND
@ STATE_PICTURE_2ND
Definition: mpeg2.h:127
mpeg2_sequence_s::colour_primaries
uint8_t colour_primaries
Definition: mpeg2.h:57
code
char code
Definition: xmllexer.c:606
mpeg2_convert_stage_t
mpeg2_convert_stage_t
Definition: mpeg2.h:141
mpeg2_gop_t
struct mpeg2_gop_s mpeg2_gop_t
mpeg2_reset
void mpeg2_reset(mpeg2dec_t *mpeg2dec)
Definition: decode.c:741
mpeg2_sequence_s::pixel_height
unsigned int pixel_height
Definition: mpeg2.h:53
STATE_INVALID_END
@ STATE_INVALID_END
Definition: mpeg2.h:131
MPEG2_ALLOC_MPEG2DEC
@ MPEG2_ALLOC_MPEG2DEC
Definition: mpeg2.h:190
mpeg2_fbuf_t
struct mpeg2_fbuf_s mpeg2_fbuf_t
mpeg2_info_s
Definition: mpeg2.h:102
mpeg2_info_s::current_fbuf
const mpeg2_fbuf_t * current_fbuf
Definition: mpeg2.h:107
mpeg2_getpos
int mpeg2_getpos(mpeg2dec_t *mpeg2dec)
Definition: decode.c:117
MPEG2_ALLOC_YUV
@ MPEG2_ALLOC_YUV
Definition: mpeg2.h:192
mpeg2_state_t
mpeg2_state_t
Definition: mpeg2.h:119
mpeg2_picture_s::y
int y
Definition: mpeg2.h:93
MPEG2_ALLOC_CHUNK
@ MPEG2_ALLOC_CHUNK
Definition: mpeg2.h:191
mpeg2_sequence_s::flags
uint32_t flags
Definition: mpeg2.h:49
mpeg2_fbuf_s
Definition: mpeg2.h:97
mpeg2_sequence_s::width
unsigned int width
Definition: mpeg2.h:45
STATE_SEQUENCE_REPEATED
@ STATE_SEQUENCE_REPEATED
Definition: mpeg2.h:122
mpeg2_convert_init_s::id_size
unsigned int id_size
Definition: mpeg2.h:135
STATE_INVALID
@ STATE_INVALID
Definition: mpeg2.h:130
mpeg2_convert_t
int mpeg2_convert_t(int stage, void *id, const mpeg2_sequence_t *sequence, int stride, uint32_t accel, void *arg, mpeg2_convert_init_t *result)
Definition: mpeg2.h:146
mpeg2_gop_s::hours
uint8_t hours
Definition: mpeg2.h:67
mpeg2_info_s::gop
const mpeg2_gop_t * gop
Definition: mpeg2.h:104
STATE_END
@ STATE_END
Definition: mpeg2.h:129
mpeg2_sequence_s::profile_level_id
uint8_t profile_level_id
Definition: mpeg2.h:56
mpeg2_info_s::current_picture
const mpeg2_picture_t * current_picture
Definition: mpeg2.h:105
mpeg2_convert
int mpeg2_convert(mpeg2dec_t *mpeg2dec, mpeg2_convert_t convert, void *arg)
Definition: decode.c:293
mpeg2_picture_s::temporal_reference
unsigned int temporal_reference
Definition: mpeg2.h:88
mpeg2_stride
int mpeg2_stride(mpeg2dec_t *mpeg2dec, int stride)
Definition: decode.c:309
mpeg2_info_s::user_data_len
unsigned int user_data_len
Definition: mpeg2.h:113
mpeg2_set_buf
void mpeg2_set_buf(mpeg2dec_t *mpeg2dec, uint8_t *buf[3], void *id)
Definition: decode.c:328
mpeg2_buffer
void mpeg2_buffer(mpeg2dec_t *mpeg2dec, uint8_t *start, uint8_t *end)
Definition: decode.c:111
mpeg2_gop_s
Definition: mpeg2.h:66
mpeg2_sequence_s
Definition: mpeg2.h:44
mpeg2_slice_region
void mpeg2_slice_region(mpeg2dec_t *mpeg2dec, int start, int end)
Definition: decode.c:361
mpeg2_info_t
struct mpeg2_info_s mpeg2_info_t
mpeg2_info_s::sequence
const mpeg2_sequence_t * sequence
Definition: mpeg2.h:103
mpeg2_tag_picture
void mpeg2_tag_picture(mpeg2dec_t *mpeg2dec, uint32_t tag, uint32_t tag2)
Definition: decode.c:369