xine-lib  1.2.10
ff_mpeg_parser.h
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1 /*
2  * Copyright (C) 2001-2018 the xine project
3  *
4  * This file is part of xine, a free video player.
5  *
6  * xine is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * xine is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19  *
20  * Simple MPEG-ES parser/framer by Thibaut Mattern (tmattern@noos.fr)
21  * based on libmpeg2 decoder.
22  */
23 #ifndef HAVE_MPEG_PARSER_H
24 #define HAVE_MPEG_PARSER_H
25 /*
26 #define DEBUG_MPEG_PARSER
27 */
28 #include <stdint.h>
29 #include <stddef.h>
30 
31 typedef struct mpeg_parser_s {
32  uint8_t *chunk_buffer;
33  uint8_t *chunk_ptr;
34  uint8_t *chunk_start;
35  uint32_t shift;
37  uint8_t code;
39 
40  uint8_t is_sequence_needed:1;
41  uint8_t is_mpeg1:1; /* public */
42  uint8_t has_sequence:1; /* public */
43  uint8_t in_slice:1;
44 
45  uint8_t rate_code:4;
46 
48 
49  /* public properties */
50  uint16_t width;
51  uint16_t height;
54 
56 
57 /* parser initialization */
58 void mpeg_parser_init (mpeg_parser_t *parser, size_t padding_size);
59 
60 /* parser disposal */
61 void mpeg_parser_dispose (mpeg_parser_t *parser);
62 
63 /* read a frame
64  * return a pointer to the first byte of the next frame
65  * or NULL if more bytes are needed
66  * *flush is set to 1 if the decoder must be flushed (needed for still menus)
67  */
68 uint8_t *mpeg_parser_decode_data (mpeg_parser_t *parser,
69  uint8_t *current, uint8_t *end,
70  int *flush);
71 
72 /* reset the parser */
73 void mpeg_parser_reset (mpeg_parser_t *parser);
74 
75 #endif /* HAVE_MPEG_PARSER_H */
mpeg_parser_dispose
void mpeg_parser_dispose(mpeg_parser_t *parser)
Definition: ff_mpeg_parser.c:75
mpeg_parser_s::chunk_start
uint8_t * chunk_start
Definition: ff_mpeg_parser.h:34
mpeg_parser_s::chunk_ptr
uint8_t * chunk_ptr
Definition: ff_mpeg_parser.h:33
I_TYPE
#define I_TYPE
Definition: ff_mpeg_parser.c:43
mpeg_parser_init
void mpeg_parser_init(mpeg_parser_t *parser, size_t padding_size)
Definition: ff_mpeg_parser.c:69
mpeg_parser_s::shift
uint32_t shift
Definition: ff_mpeg_parser.h:35
frame_rate_tab
static const int frame_rate_tab[][2]
Definition: ff_mpeg_parser.c:49
mpeg_parser_s::has_sequence
uint8_t has_sequence
Definition: ff_mpeg_parser.h:42
mpeg_parser_s::code
uint8_t code
Definition: ff_mpeg_parser.h:37
lprintf
#define lprintf(...)
Definition: xineutils.h:620
mpeg_parser_s::rate_code
uint8_t rate_code
Definition: ff_mpeg_parser.h:45
mpeg_parser_reset
void mpeg_parser_reset(mpeg_parser_t *parser)
Definition: ff_mpeg_parser.c:82
mpeg_parser_s::is_mpeg1
uint8_t is_mpeg1
Definition: ff_mpeg_parser.h:41
mpeg_parser_s
Definition: ff_mpeg_parser.h:31
B_TYPE
#define B_TYPE
Definition: ff_mpeg_parser.c:45
NULL
NULL
Definition: xine_plugin.c:78
parse_chunk
static int parse_chunk(mpeg_parser_t *parser, int code, uint8_t *buffer, int len)
Definition: ff_mpeg_parser.c:141
mpeg_parser_s::in_slice
uint8_t in_slice
Definition: ff_mpeg_parser.h:43
width
unsigned int width
Definition: gfontrle.c:4
BUFFER_SIZE
#define BUFFER_SIZE
Definition: ff_mpeg_parser.c:40
mpeg_parser_s::is_sequence_needed
uint8_t is_sequence_needed
Definition: ff_mpeg_parser.h:40
mpeg_parser_decode_data
uint8_t * mpeg_parser_decode_data(mpeg_parser_t *parser, uint8_t *current, uint8_t *end, int *flush)
Definition: ff_mpeg_parser.c:307
ff_mpeg_parser.h
mpeg_parser_s::frame_aspect_ratio
double frame_aspect_ratio
Definition: ff_mpeg_parser.h:53
mpeg_parser_s::width
uint16_t width
Definition: ff_mpeg_parser.h:50
code
char code
Definition: xmllexer.c:606
mpeg_parser_s::frame_duration
int frame_duration
Definition: ff_mpeg_parser.h:52
mpeg_parser_s::picture_coding_type
uint8_t picture_coding_type
Definition: ff_mpeg_parser.h:38
height
unsigned int height
Definition: gfontrle.c:5
mpeg_parser_init
void mpeg_parser_init(mpeg_parser_t *parser, size_t padding_size)
Definition: ff_mpeg_parser.c:69
P_TYPE
#define P_TYPE
Definition: ff_mpeg_parser.c:44
mpeg_parser_s::aspect_ratio_info
int aspect_ratio_info
Definition: ff_mpeg_parser.h:47
mpeg_parser_reset
void mpeg_parser_reset(mpeg_parser_t *parser)
Definition: ff_mpeg_parser.c:82
copy_chunk
static uint8_t * copy_chunk(mpeg_parser_t *parser, uint8_t *current, uint8_t *end)
Definition: ff_mpeg_parser.c:262
mpeg_parser_dispose
void mpeg_parser_dispose(mpeg_parser_t *parser)
Definition: ff_mpeg_parser.c:75
xine_internal.h
mpeg_parser_decode_data
uint8_t * mpeg_parser_decode_data(mpeg_parser_t *parser, uint8_t *current, uint8_t *end, int *flush)
Definition: ff_mpeg_parser.c:307
config.h
mpeg_parser_t
struct mpeg_parser_s mpeg_parser_t
get_aspect_ratio
static double get_aspect_ratio(mpeg_parser_t *parser)
Definition: ff_mpeg_parser.c:107
mpeg_parser_s::chunk_buffer
uint8_t * chunk_buffer
Definition: ff_mpeg_parser.h:32
mpeg_parser_s::buffer_size
int buffer_size
Definition: ff_mpeg_parser.h:36
mpeg_parser_s::height
uint16_t height
Definition: ff_mpeg_parser.h:51
parse_header_picture
static void parse_header_picture(mpeg_parser_t *parser, uint8_t *buffer)
Definition: ff_mpeg_parser.c:102