Libav
swf.h
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1 /*
2  * Flash Compatible Streaming Format common header.
3  * Copyright (c) 2000 Fabrice Bellard
4  * Copyright (c) 2003 Tinic Uro
5  *
6  * This file is part of Libav.
7  *
8  * Libav is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * Libav is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVFORMAT_SWF_H
24 #define AVFORMAT_SWF_H
25 
26 #include "config.h"
27 
28 #if CONFIG_ZLIB
29 #include <zlib.h>
30 #endif
31 
32 #include "libavutil/fifo.h"
33 #include "avformat.h"
34 #include "avio.h"
35 #include "internal.h"
36 
37 /* should have a generic way to indicate probable size */
38 #define DUMMY_FILE_SIZE (100 * 1024 * 1024)
39 #define DUMMY_DURATION 600 /* in seconds */
40 
41 #define TAG_END 0
42 #define TAG_SHOWFRAME 1
43 #define TAG_DEFINESHAPE 2
44 #define TAG_FREECHARACTER 3
45 #define TAG_PLACEOBJECT 4
46 #define TAG_REMOVEOBJECT 5
47 #define TAG_STREAMHEAD 18
48 #define TAG_STREAMBLOCK 19
49 #define TAG_JPEG2 21
50 #define TAG_PLACEOBJECT2 26
51 #define TAG_STREAMHEAD2 45
52 #define TAG_VIDEOSTREAM 60
53 #define TAG_VIDEOFRAME 61
54 #define TAG_FILEATTRIBUTES 69
55 
56 #define TAG_LONG 0x100
57 
58 /* flags for shape definition */
59 #define FLAG_MOVETO 0x01
60 #define FLAG_SETFILL0 0x02
61 #define FLAG_SETFILL1 0x04
62 
63 #define AUDIO_FIFO_SIZE 65536
64 
65 /* character id used */
66 #define BITMAP_ID 0
67 #define VIDEO_ID 0
68 #define SHAPE_ID 1
69 
70 typedef struct SWFContext {
71  int64_t duration_pos;
72  int64_t tag_pos;
73  int64_t vframes_pos;
79  int tag;
83 #if CONFIG_ZLIB
84 #define ZBUF_SIZE 4096
85  AVIOContext *zpb;
86  uint8_t *zbuf_in;
87  uint8_t *zbuf_out;
88  z_stream zstream;
89 #endif
90 } SWFContext;
91 
92 extern const AVCodecTag ff_swf_codec_tags[];
93 
94 #endif /* AVFORMAT_SWF_H */
Bytestream IO Context.
Definition: avio.h:104
Buffered I/O operations.
Definition: swf.h:70
AVStream * video_st
Definition: swf.h:82
This struct describes the properties of an encoded stream.
Definition: avcodec.h:3475
int frame_rate
Definition: swf.h:78
uint8_t
AVCodecParameters * video_par
Definition: swf.h:81
int swf_frame_number
Definition: swf.h:76
int video_frame_number
Definition: swf.h:77
int sound_samples
Definition: swf.h:75
int samples_per_frame
Definition: swf.h:74
const AVCodecTag ff_swf_codec_tags[]
Definition: swf.c:25
Stream structure.
Definition: avformat.h:705
a very simple circular buffer FIFO implementation
AVCodecParameters * audio_par
Definition: swf.h:81
int64_t vframes_pos
Definition: swf.h:73
Main libavformat public API header.
int64_t tag_pos
Definition: swf.h:72
int tag
Definition: swf.h:79
AVFifoBuffer * audio_fifo
Definition: swf.h:80
int64_t duration_pos
Definition: swf.h:71