Statistics
| Branch: | Revision:

ffmpeg / libavformat / asf.h @ 0d9f8633

History | View | Annotate | Download (10.4 KB)

1 542993b0 Konstantin Andreyev
/*
2
 * Copyright (c) 2000, 2001 Fabrice Bellard.
3
 *
4 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
5
 *
6
 * FFmpeg is free software; you can redistribute it and/or
7 542993b0 Konstantin Andreyev
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
10 542993b0 Konstantin Andreyev
 *
11 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
12 542993b0 Konstantin Andreyev
 * 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
17 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
18 5509bffa Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 542993b0 Konstantin Andreyev
 */
20
#define PACKET_SIZE 3200
21
22
typedef struct {
23
    int num;
24 615b92fd Konstantin Andreyev
    unsigned char seq;
25 542993b0 Konstantin Andreyev
    /* use for reading */
26
    AVPacket pkt;
27
    int frag_offset;
28
    int timestamp;
29
    int64_t duration;
30
31 bb270c08 Diego Biurrun
    int ds_span;                /* descrambling  */
32 542993b0 Konstantin Andreyev
    int ds_packet_size;
33
    int ds_chunk_size;
34 115329f1 Diego Biurrun
35 b6eaae39 Kohn Emil Dan
    int64_t packet_pos;
36 542993b0 Konstantin Andreyev
37
} ASFStream;
38
39 24c14d6d Michael Niedermayer
typedef uint8_t GUID[16];
40 542993b0 Konstantin Andreyev
41
typedef struct {
42 4c6f7440 Michael Niedermayer
    GUID guid;                  ///< generated by client computer
43
    uint64_t file_size;         /**< in bytes
44
                                 *   invalid if broadcasting */
45
    uint64_t create_time;       /**< time of creation, in 100-nanosecond units since 1.1.1601
46
                                 *   invalid if broadcasting */
47
    uint64_t play_time;         /**< play time, in 100-nanosecond units
48
                                 * invalid if broadcasting */
49
    uint64_t send_time;         /**< time to send file, in 100-nanosecond units
50
                                 *   invalid if broadcasting (could be ignored) */
51
    uint32_t preroll;           /**< timestamp of the first packet, in milliseconds
52
                                 *   if nonzero - substract from time */
53
    uint32_t ignore;            ///< preroll is 64bit - but let's just ignore it
54
    uint32_t flags;             /**< 0x01 - broadcast
55
                                 *   0x02 - seekable
56
                                 *   rest is reserved should be 0 */
57
    uint32_t min_pktsize;       /**< size of a data packet
58
                                 *   invalid if broadcasting */
59
    uint32_t max_pktsize;       /**< shall be the same as for min_pktsize
60
                                 *   invalid if broadcasting */
61
    uint32_t max_bitrate;       /**< bandwith of stream in bps
62
                                 *   should be the sum of bitrates of the
63
                                 *   individual media streams */
64 542993b0 Konstantin Andreyev
} ASFMainHeader;
65
66
67
typedef struct {
68 982e53fe Calcium
    uint32_t packet_number;
69
    uint16_t packet_count;
70
} ASFIndex;
71
72
73
typedef struct {
74 615b92fd Konstantin Andreyev
    uint32_t seqno;
75
    unsigned int packet_size;
76 542993b0 Konstantin Andreyev
    int is_streamed;
77 4c6f7440 Michael Niedermayer
    int asfid2avid[128];                 ///< conversion table from asf ID 2 AVStream ID
78
    ASFStream streams[128];              ///< it's max number and it's not that big
79 542993b0 Konstantin Andreyev
    /* non streamed additonnal info */
80 6bb2a2df Michael Niedermayer
    uint64_t nb_packets;                 ///< how many packets are there in the file, invalid if broadcasting
81 4c6f7440 Michael Niedermayer
    int64_t duration;                    ///< in 100ns units
82 542993b0 Konstantin Andreyev
    /* packet filling */
83 615b92fd Konstantin Andreyev
    unsigned char multi_payloads_present;
84 542993b0 Konstantin Andreyev
    int packet_size_left;
85
    int packet_timestamp_start;
86
    int packet_timestamp_end;
87 615b92fd Konstantin Andreyev
    unsigned int packet_nb_payloads;
88 542993b0 Konstantin Andreyev
    int packet_nb_frames;
89
    uint8_t packet_buf[PACKET_SIZE];
90
    ByteIOContext pb;
91
    /* only for reading */
92 4c6f7440 Michael Niedermayer
    uint64_t data_offset;                ///< begining of the first data packet
93
    uint64_t data_object_offset;         ///< data object offset (excl. GUID & size)
94
    uint64_t data_object_size;           ///< size of the data object
95 52e54612 Michael Niedermayer
    int index_read;
96 542993b0 Konstantin Andreyev
97
    ASFMainHeader hdr;
98
99
    int packet_flags;
100
    int packet_property;
101
    int packet_timestamp;
102
    int packet_segsizetype;
103
    int packet_segments;
104
    int packet_seq;
105
    int packet_replic_size;
106
    int packet_key_frame;
107
    int packet_padsize;
108 4c71d727 Michael Niedermayer
    unsigned int packet_frag_offset;
109
    unsigned int packet_frag_size;
110 559a55ad Michael Niedermayer
    int64_t packet_frag_timestamp;
111 542993b0 Konstantin Andreyev
    int packet_multi_size;
112
    int packet_obj_size;
113
    int packet_time_delta;
114
    int packet_time_start;
115 b6eaae39 Kohn Emil Dan
    int64_t packet_pos;
116 542993b0 Konstantin Andreyev
117
    int stream_index;
118 982e53fe Calcium
119
120
    int64_t last_indexed_pts;
121
    ASFIndex* index_ptr;
122
    uint32_t nb_index_count;
123
    uint32_t nb_index_memory_alloc;
124
    uint16_t maximum_packet;
125
126 4c6f7440 Michael Niedermayer
    ASFStream* asf_st;                   ///< currently decoded stream
127 542993b0 Konstantin Andreyev
} ASFContext;
128
129
static const GUID asf_header = {
130 24c14d6d Michael Niedermayer
    0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C
131 542993b0 Konstantin Andreyev
};
132
133
static const GUID file_header = {
134 24c14d6d Michael Niedermayer
    0xA1, 0xDC, 0xAB, 0x8C, 0x47, 0xA9, 0xCF, 0x11, 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
135 542993b0 Konstantin Andreyev
};
136
137
static const GUID stream_header = {
138 24c14d6d Michael Niedermayer
    0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
139 542993b0 Konstantin Andreyev
};
140
141 88141c91 Michael Niedermayer
static const GUID ext_stream_header = {
142 24c14d6d Michael Niedermayer
    0xCB, 0xA5, 0xE6, 0x14, 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A
143 88141c91 Michael Niedermayer
};
144
145 542993b0 Konstantin Andreyev
static const GUID audio_stream = {
146 24c14d6d Michael Niedermayer
    0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
147 542993b0 Konstantin Andreyev
};
148
149
static const GUID audio_conceal_none = {
150 24c14d6d Michael Niedermayer
    // 0x40, 0xa4, 0xf1, 0x49, 0x4ece, 0x11d0, 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
151 542993b0 Konstantin Andreyev
    // New value lifted from avifile
152 24c14d6d Michael Niedermayer
    0x00, 0x57, 0xfb, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b
153 542993b0 Konstantin Andreyev
};
154
155 982e53fe Calcium
static const GUID audio_conceal_spread = {
156 24c14d6d Michael Niedermayer
     0x50, 0xCD, 0xC3, 0xBF, 0x8F, 0x61, 0xCF, 0x11, 0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20
157 982e53fe Calcium
};
158
159 542993b0 Konstantin Andreyev
static const GUID video_stream = {
160 24c14d6d Michael Niedermayer
    0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
161 542993b0 Konstantin Andreyev
};
162
163
static const GUID video_conceal_none = {
164 24c14d6d Michael Niedermayer
    0x00, 0x57, 0xFB, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
165 542993b0 Konstantin Andreyev
};
166
167 ae38261e Mike Brown
static const GUID command_stream = {
168 24c14d6d Michael Niedermayer
    0xC0, 0xCF, 0xDA, 0x59, 0xE6, 0x59, 0xD0, 0x11, 0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
169 ae38261e Mike Brown
};
170 542993b0 Konstantin Andreyev
171
static const GUID comment_header = {
172 24c14d6d Michael Niedermayer
    0x33, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
173 542993b0 Konstantin Andreyev
};
174
175
static const GUID codec_comment_header = {
176 24c14d6d Michael Niedermayer
    0x40, 0x52, 0xD1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
177 542993b0 Konstantin Andreyev
};
178
static const GUID codec_comment1_header = {
179 24c14d6d Michael Niedermayer
    0x41, 0x52, 0xd1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
180 542993b0 Konstantin Andreyev
};
181
182
static const GUID data_header = {
183 24c14d6d Michael Niedermayer
    0x36, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
184 542993b0 Konstantin Andreyev
};
185
186
static const GUID head1_guid = {
187 24c14d6d Michael Niedermayer
    0xb5, 0x03, 0xbf, 0x5f, 0x2E, 0xA9, 0xCF, 0x11, 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
188 542993b0 Konstantin Andreyev
};
189
190
static const GUID head2_guid = {
191 24c14d6d Michael Niedermayer
    0x11, 0xd2, 0xd3, 0xab, 0xBA, 0xA9, 0xCF, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
192 542993b0 Konstantin Andreyev
};
193
194
static const GUID extended_content_header = {
195 24c14d6d Michael Niedermayer
        0x40, 0xA4, 0xD0, 0xD2, 0x07, 0xE3, 0xD2, 0x11, 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50
196 542993b0 Konstantin Andreyev
};
197
198 982e53fe Calcium
static const GUID simple_index_header = {
199 24c14d6d Michael Niedermayer
        0x90, 0x08, 0x00, 0x33, 0xB1, 0xE5, 0xCF, 0x11, 0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB
200 982e53fe Calcium
};
201
202 88141c91 Michael Niedermayer
static const GUID ext_stream_embed_stream_header = {
203 24c14d6d Michael Niedermayer
        0xe2, 0x65, 0xfb, 0x3a, 0xEF, 0x47, 0xF2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43
204 88141c91 Michael Niedermayer
};
205
206
static const GUID ext_stream_audio_stream = {
207 24c14d6d Michael Niedermayer
        0x9d, 0x8c, 0x17, 0x31, 0xE1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03
208 88141c91 Michael Niedermayer
};
209
210 30e88789 Michael Niedermayer
static const GUID metadata_header = {
211
        0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca
212
};
213
214 542993b0 Konstantin Andreyev
/* I am not a number !!! This GUID is the one found on the PC used to
215
   generate the stream */
216
static const GUID my_guid = {
217 24c14d6d Michael Niedermayer
    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
218 542993b0 Konstantin Andreyev
};
219 615b92fd Konstantin Andreyev
220
#define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000
221
222
223
//   ASF data packet structure
224
//   =========================
225
//
226
//
227
//  -----------------------------------
228
// | Error Correction Data             |  Optional
229
//  -----------------------------------
230
// | Payload Parsing Information (PPI) |
231
//  -----------------------------------
232
// | Payload Data                      |
233
//  -----------------------------------
234
// | Padding Data                      |
235
//  -----------------------------------
236
237
238
// PPI_FLAG - Payload parsing information flags
239
#define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1
240
241
#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE  0x02 //0000 0010
242
#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD  0x04 //0000 0100
243
#define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD 0x06 //0000 0110
244
#define ASF_PPI_MASK_SEQUENCE_FIELD_SIZE     0x06 //0000 0110
245
246
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE  0x08 //0000 1000
247
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD  0x10 //0001 0000
248
#define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD 0x18 //0001 1000
249
#define ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE     0x18 //0001 1000
250
251
#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE  0x20 //0010 0000
252
#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD  0x40 //0100 0000
253
#define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD 0x60 //0110 0000
254
#define ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE     0x60 //0110 0000
255
256
// PL_FLAG - Payload flags
257
#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE   0x01 //0000 0001
258
#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD   0x02 //0000 0010
259
#define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD  0x03 //0000 0011
260
#define ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE      0x03 //0000 0011
261
262
#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE  0x04 //0000 0100
263
#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD  0x08 //0000 1000
264
#define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD 0x0c //0000 1100
265
#define ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE     0x0c //0000 1100
266
267
#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE  0x10 //0001 0000
268
#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD  0x20 //0010 0000
269
#define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD 0x30 //0011 0000
270
#define ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE     0x30 //0011 0000
271
272
#define ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE  0x40 //0100 0000
273
#define ASF_PL_MASK_STREAM_NUMBER_LENGTH_FIELD_SIZE     0xc0 //1100 0000
274
275
#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE  0x40 //0100 0000
276
#define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD  0x80 //1000 0000
277
#define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE     0xc0 //1100 0000
278
279
#define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000