add multiple inclusion guards to headers
[libav.git] / libavformat / asf.h
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1/*
2 * Copyright (c) 2000, 2001 Fabrice Bellard.
3 *
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4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
b78e7197 9 * version 2.1 of the License, or (at your option) any later version.
542993b0 10 *
b78e7197 11 * FFmpeg is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
b78e7197 17 * License along with FFmpeg; if not, write to the Free Software
5509bffa 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
542993b0 19 */
99545457 20
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21#ifndef AVFORMAT_ASF_H
22#define AVFORMAT_ASF_H
23
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24#include <stdint.h>
25#include "avformat.h"
26
542993b0 27#define PACKET_SIZE 3200
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28
29typedef struct {
30 int num;
615b92fd 31 unsigned char seq;
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32 /* use for reading */
33 AVPacket pkt;
34 int frag_offset;
35 int timestamp;
36 int64_t duration;
37
bb270c08 38 int ds_span; /* descrambling */
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39 int ds_packet_size;
40 int ds_chunk_size;
115329f1 41
b6eaae39 42 int64_t packet_pos;
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43
44} ASFStream;
45
24c14d6d 46typedef uint8_t GUID[16];
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47
48typedef struct {
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49 GUID guid; ///< generated by client computer
50 uint64_t file_size; /**< in bytes
51 * invalid if broadcasting */
52 uint64_t create_time; /**< time of creation, in 100-nanosecond units since 1.1.1601
53 * invalid if broadcasting */
54 uint64_t play_time; /**< play time, in 100-nanosecond units
55 * invalid if broadcasting */
56 uint64_t send_time; /**< time to send file, in 100-nanosecond units
57 * invalid if broadcasting (could be ignored) */
58 uint32_t preroll; /**< timestamp of the first packet, in milliseconds
59 * if nonzero - substract from time */
60 uint32_t ignore; ///< preroll is 64bit - but let's just ignore it
61 uint32_t flags; /**< 0x01 - broadcast
62 * 0x02 - seekable
63 * rest is reserved should be 0 */
64 uint32_t min_pktsize; /**< size of a data packet
65 * invalid if broadcasting */
66 uint32_t max_pktsize; /**< shall be the same as for min_pktsize
67 * invalid if broadcasting */
68 uint32_t max_bitrate; /**< bandwith of stream in bps
69 * should be the sum of bitrates of the
70 * individual media streams */
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71} ASFMainHeader;
72
73
74typedef struct {
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75 uint32_t packet_number;
76 uint16_t packet_count;
77} ASFIndex;
78
79
80typedef struct {
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81 uint32_t seqno;
82 unsigned int packet_size;
542993b0 83 int is_streamed;
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84 int asfid2avid[128]; ///< conversion table from asf ID 2 AVStream ID
85 ASFStream streams[128]; ///< it's max number and it's not that big
0e3b6a6f 86 uint32_t stream_bitrates[128]; ///< max number of streams, bitrate for each (for streaming)
542993b0 87 /* non streamed additonnal info */
6bb2a2df 88 uint64_t nb_packets; ///< how many packets are there in the file, invalid if broadcasting
4c6f7440 89 int64_t duration; ///< in 100ns units
542993b0 90 /* packet filling */
615b92fd 91 unsigned char multi_payloads_present;
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92 int packet_size_left;
93 int packet_timestamp_start;
94 int packet_timestamp_end;
615b92fd 95 unsigned int packet_nb_payloads;
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96 int packet_nb_frames;
97 uint8_t packet_buf[PACKET_SIZE];
98 ByteIOContext pb;
99 /* only for reading */
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100 uint64_t data_offset; ///< begining of the first data packet
101 uint64_t data_object_offset; ///< data object offset (excl. GUID & size)
102 uint64_t data_object_size; ///< size of the data object
52e54612 103 int index_read;
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104
105 ASFMainHeader hdr;
106
107 int packet_flags;
108 int packet_property;
109 int packet_timestamp;
110 int packet_segsizetype;
111 int packet_segments;
112 int packet_seq;
113 int packet_replic_size;
114 int packet_key_frame;
115 int packet_padsize;
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116 unsigned int packet_frag_offset;
117 unsigned int packet_frag_size;
559a55ad 118 int64_t packet_frag_timestamp;
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119 int packet_multi_size;
120 int packet_obj_size;
121 int packet_time_delta;
122 int packet_time_start;
b6eaae39 123 int64_t packet_pos;
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124
125 int stream_index;
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126
127
128 int64_t last_indexed_pts;
129 ASFIndex* index_ptr;
130 uint32_t nb_index_count;
131 uint32_t nb_index_memory_alloc;
132 uint16_t maximum_packet;
133
4c6f7440 134 ASFStream* asf_st; ///< currently decoded stream
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135} ASFContext;
136
137static const GUID asf_header = {
24c14d6d 138 0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C
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139};
140
141static const GUID file_header = {
24c14d6d 142 0xA1, 0xDC, 0xAB, 0x8C, 0x47, 0xA9, 0xCF, 0x11, 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
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143};
144
145static const GUID stream_header = {
24c14d6d 146 0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
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147};
148
88141c91 149static const GUID ext_stream_header = {
24c14d6d 150 0xCB, 0xA5, 0xE6, 0x14, 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A
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151};
152
542993b0 153static const GUID audio_stream = {
24c14d6d 154 0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
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155};
156
157static const GUID audio_conceal_none = {
24c14d6d 158 // 0x40, 0xa4, 0xf1, 0x49, 0x4ece, 0x11d0, 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
542993b0 159 // New value lifted from avifile
24c14d6d 160 0x00, 0x57, 0xfb, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b
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161};
162
982e53fe 163static const GUID audio_conceal_spread = {
24c14d6d 164 0x50, 0xCD, 0xC3, 0xBF, 0x8F, 0x61, 0xCF, 0x11, 0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20
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165};
166
542993b0 167static const GUID video_stream = {
24c14d6d 168 0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
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169};
170
171static const GUID video_conceal_none = {
24c14d6d 172 0x00, 0x57, 0xFB, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
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173};
174
ae38261e 175static const GUID command_stream = {
24c14d6d 176 0xC0, 0xCF, 0xDA, 0x59, 0xE6, 0x59, 0xD0, 0x11, 0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
ae38261e 177};
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178
179static const GUID comment_header = {
24c14d6d 180 0x33, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
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181};
182
183static const GUID codec_comment_header = {
24c14d6d 184 0x40, 0x52, 0xD1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
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185};
186static const GUID codec_comment1_header = {
24c14d6d 187 0x41, 0x52, 0xd1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
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188};
189
190static const GUID data_header = {
24c14d6d 191 0x36, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
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192};
193
194static const GUID head1_guid = {
24c14d6d 195 0xb5, 0x03, 0xbf, 0x5f, 0x2E, 0xA9, 0xCF, 0x11, 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
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196};
197
198static const GUID head2_guid = {
24c14d6d 199 0x11, 0xd2, 0xd3, 0xab, 0xBA, 0xA9, 0xCF, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
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200};
201
202static const GUID extended_content_header = {
24c14d6d 203 0x40, 0xA4, 0xD0, 0xD2, 0x07, 0xE3, 0xD2, 0x11, 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50
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204};
205
982e53fe 206static const GUID simple_index_header = {
24c14d6d 207 0x90, 0x08, 0x00, 0x33, 0xB1, 0xE5, 0xCF, 0x11, 0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB
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208};
209
88141c91 210static const GUID ext_stream_embed_stream_header = {
24c14d6d 211 0xe2, 0x65, 0xfb, 0x3a, 0xEF, 0x47, 0xF2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43
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212};
213
214static const GUID ext_stream_audio_stream = {
24c14d6d 215 0x9d, 0x8c, 0x17, 0x31, 0xE1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03
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216};
217
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218static const GUID metadata_header = {
219 0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca
220};
221
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222/* I am not a number !!! This GUID is the one found on the PC used to
223 generate the stream */
224static const GUID my_guid = {
24c14d6d 225 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
542993b0 226};
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227
228#define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000
229
230
231// ASF data packet structure
232// =========================
233//
234//
235// -----------------------------------
236// | Error Correction Data | Optional
237// -----------------------------------
238// | Payload Parsing Information (PPI) |
239// -----------------------------------
240// | Payload Data |
241// -----------------------------------
242// | Padding Data |
243// -----------------------------------
244
245
246// PPI_FLAG - Payload parsing information flags
247#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1
248
249#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE 0x02 //0000 0010
250#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD 0x04 //0000 0100
251#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD 0x06 //0000 0110
252#define ASF_PPI_MASK_SEQUENCE_FIELD_SIZE 0x06 //0000 0110
253
254#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE 0x08 //0000 1000
255#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD 0x10 //0001 0000
256#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD 0x18 //0001 1000
257#define ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE 0x18 //0001 1000
258
259#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE 0x20 //0010 0000
260#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD 0x40 //0100 0000
261#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD 0x60 //0110 0000
262#define ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE 0x60 //0110 0000
263
264// PL_FLAG - Payload flags
265#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE 0x01 //0000 0001
266#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD 0x02 //0000 0010
267#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD 0x03 //0000 0011
268#define ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE 0x03 //0000 0011
269
270#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE 0x04 //0000 0100
271#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD 0x08 //0000 1000
272#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD 0x0c //0000 1100
273#define ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE 0x0c //0000 1100
274
275#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE 0x10 //0001 0000
276#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD 0x20 //0010 0000
277#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD 0x30 //0011 0000
278#define ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE 0x30 //0011 0000
279
280#define ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
281#define ASF_PL_MASK_STREAM_NUMBER_LENGTH_FIELD_SIZE 0xc0 //1100 0000
282
283#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
284#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD 0x80 //1000 0000
285#define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE 0xc0 //1100 0000
286
287#define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000
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288
289#endif