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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 FFmpeg. | |
7 | * | |
8 | * FFmpeg 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 | * FFmpeg 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 FFmpeg; 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 | enum { | |
42 | TAG_END = 0, | |
43 | TAG_SHOWFRAME = 1, | |
44 | TAG_DEFINESHAPE = 2, | |
45 | TAG_FREECHARACTER = 3, | |
46 | TAG_PLACEOBJECT = 4, | |
47 | TAG_REMOVEOBJECT = 5, | |
48 | TAG_DEFINEBITS = 6, | |
49 | TAG_DEFINEBUTTON = 7, | |
50 | TAG_JPEGTABLES = 8, | |
51 | TAG_SETBACKGROUNDCOLOR = 9, | |
52 | TAG_DEFINEFONT = 10, | |
53 | TAG_DEFINETEXT = 11, | |
54 | TAG_DOACTION = 12, | |
55 | TAG_DEFINEFONTINFO = 13, | |
56 | TAG_DEFINESOUND = 14, | |
57 | TAG_STARTSOUND = 15, | |
58 | TAG_DEFINEBUTTONSOUND = 17, | |
59 | TAG_STREAMHEAD = 18, | |
60 | TAG_STREAMBLOCK = 19, | |
61 | TAG_DEFINEBITSLOSSLESS = 20, | |
62 | TAG_JPEG2 = 21, | |
63 | TAG_DEFINESHAPE2 = 22, | |
64 | TAG_DEFINEBUTTONCXFORM = 23, | |
65 | TAG_PROTECT = 24, | |
66 | TAG_PLACEOBJECT2 = 26, | |
67 | TAG_REMOVEOBJECT2 = 28, | |
68 | TAG_DEFINESHAPE3 = 32, | |
69 | TAG_DEFINETEXT2 = 33, | |
70 | TAG_DEFINEBUTTON2 = 34, | |
71 | TAG_DEFINEBITSJPEG3 = 35, | |
72 | TAG_DEFINEBITSLOSSLESS2 = 36, | |
73 | TAG_DEFINEEDITTEXT = 37, | |
74 | TAG_DEFINESPRITE = 39, | |
75 | TAG_FRAMELABEL = 43, | |
76 | TAG_STREAMHEAD2 = 45, | |
77 | TAG_DEFINEMORPHSHAPE = 46, | |
78 | TAG_DEFINEFONT2 = 48, | |
79 | TAG_EXPORTASSETS = 56, | |
80 | TAG_IMPORTASSETS = 57, | |
81 | TAG_ENABLEDEBUGGER = 58, | |
82 | TAG_DOINITACTION = 59, | |
83 | TAG_VIDEOSTREAM = 60, | |
84 | TAG_VIDEOFRAME = 61, | |
85 | TAG_DEFINEFONTINFO2 = 62, | |
86 | TAG_ENABLEDEBUGGER2 = 64, | |
87 | TAG_SCRIPTLIMITS = 65, | |
88 | TAG_SETTABINDEX = 66, | |
89 | TAG_FILEATTRIBUTES = 69, | |
90 | TAG_PLACEOBJECT3 = 70, | |
91 | TAG_IMPORTASSETS2 = 71, | |
92 | TAG_DEFINEFONTALIGNZONES = 73, | |
93 | TAG_CSMTEXTSETTINGS = 74, | |
94 | TAG_DEFINEFONT3 = 75, | |
95 | TAG_SYMBOLCLASS = 76, | |
96 | TAG_METADATA = 77, | |
97 | TAG_DEFINESCALINGGRID = 78, | |
98 | TAG_DOABC = 82, | |
99 | TAG_DEFINESHAPE4 = 83, | |
100 | TAG_DEFINEMORPHSHAPE2 = 84, | |
101 | TAG_DEFINESCENEANDFRAMELABELDATA = 86, | |
102 | TAG_DEFINEBINARYDATA = 87, | |
103 | TAG_DEFINEFONTNAME = 88, | |
104 | TAG_STARTSOUND2 = 89, | |
105 | TAG_DEFINEBITSJPEG4 = 90, | |
106 | TAG_DEFINEFONT4 = 91, | |
107 | }; | |
108 | ||
109 | #define TAG_LONG 0x100 | |
110 | ||
111 | /* flags for shape definition */ | |
112 | #define FLAG_MOVETO 0x01 | |
113 | #define FLAG_SETFILL0 0x02 | |
114 | #define FLAG_SETFILL1 0x04 | |
115 | ||
116 | #define AUDIO_FIFO_SIZE 65536 | |
117 | ||
118 | /* character id used */ | |
119 | #define BITMAP_ID 0 | |
120 | #define VIDEO_ID 0 | |
121 | #define SHAPE_ID 1 | |
122 | ||
123 | typedef struct SWFContext { | |
124 | int64_t duration_pos; | |
125 | int64_t tag_pos; | |
126 | int64_t vframes_pos; | |
127 | int samples_per_frame; | |
128 | int sound_samples; | |
129 | int swf_frame_number; | |
130 | int video_frame_number; | |
131 | int frame_rate; | |
132 | int tag; | |
133 | AVFifoBuffer *audio_fifo; | |
134 | AVCodecContext *audio_enc, *video_enc; | |
135 | AVStream *video_st; | |
136 | #if CONFIG_ZLIB | |
137 | AVIOContext *zpb; | |
138 | #define ZBUF_SIZE 4096 | |
139 | uint8_t *zbuf_in; | |
140 | uint8_t *zbuf_out; | |
141 | z_stream zstream; | |
142 | #endif | |
143 | } SWFContext; | |
144 | ||
145 | extern const AVCodecTag ff_swf_codec_tags[]; | |
146 | ||
147 | #endif /* AVFORMAT_SWF_H */ |