1 /*
2 * Copyright (c) 2000, 2001 Fabrice Bellard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg 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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef AVFORMAT_ASF_H
22 #define AVFORMAT_ASF_H
23
24 #include <stdint.h>
28
38
42 * invalid if broadcasting */
43 uint64_t
create_time;
/**< time of creation, in 100-nanosecond units since 1.1.1601
44 * invalid if broadcasting */
45 uint64_t
play_time;
/**< play time, in 100-nanosecond units
46 * invalid if broadcasting */
47 uint64_t
send_time;
/**< time to send file, in 100-nanosecond units
48 * invalid if broadcasting (could be ignored) */
49 uint32_t
preroll;
/**< timestamp of the first packet, in milliseconds
50 * if nonzero - subtract from time */
51 uint32_t
ignore;
///< preroll is 64 bits - but let's just ignore it
52 uint32_t
flags;
/**< 0x01 - broadcast
53 * 0x02 - seekable
54 * rest is reserved should be 0 */
56 * invalid if broadcasting */
57 uint32_t
max_pktsize;
/**< shall be the same as for min_pktsize
58 * invalid if broadcasting */
60 * should be the sum of bitrates of the
61 * individual media streams */
63
64
71
101 #define ff_asf_extended_stream_properties_object ff_asf_ext_stream_header
104
106
107 /**
108 * Handles both attached pictures as well as id3 tags.
109 *
110 * @return Returns < 0 on error, 1 if the type of the byte array
111 * is unsupported by this function and 0 otherwise.
112 */
114 int val_len);
115
116
117 #define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000
118
119
120 // ASF data packet structure
121 // =========================
122 //
123 //
124 // -----------------------------------
125 // | Error Correction Data | Optional
126 // -----------------------------------
127 // | Payload Parsing Information (PPI) |
128 // -----------------------------------
129 // | Payload Data |
130 // -----------------------------------
131 // | Padding Data |
132 // -----------------------------------
133
134
135 // PPI_FLAG - Payload parsing information flags
136 #define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1
137
138 #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE 0x02 //0000 0010
139 #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD 0x04 //0000 0100
140 #define ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD 0x06 //0000 0110
141 #define ASF_PPI_MASK_SEQUENCE_FIELD_SIZE 0x06 //0000 0110
142
143 #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE 0x08 //0000 1000
144 #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD 0x10 //0001 0000
145 #define ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD 0x18 //0001 1000
146 #define ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE 0x18 //0001 1000
147
148 #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE 0x20 //0010 0000
149 #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD 0x40 //0100 0000
150 #define ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD 0x60 //0110 0000
151 #define ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE 0x60 //0110 0000
152
153 // PL_FLAG - Payload flags
154 #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE 0x01 //0000 0001
155 #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD 0x02 //0000 0010
156 #define ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD 0x03 //0000 0011
157 #define ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE 0x03 //0000 0011
158
159 #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE 0x04 //0000 0100
160 #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD 0x08 //0000 1000
161 #define ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD 0x0c //0000 1100
162 #define ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE 0x0c //0000 1100
163
164 #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE 0x10 //0001 0000
165 #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD 0x20 //0010 0000
166 #define ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD 0x30 //0011 0000
167 #define ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE 0x30 //0011 0000
168
169 #define ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
170 #define ASF_PL_MASK_STREAM_NUMBER_LENGTH_FIELD_SIZE 0xc0 //1100 0000
171
172 #define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE 0x40 //0100 0000
173 #define ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD 0x80 //1000 0000
174 #define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE 0xc0 //1100 0000
175
176 #define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000
177
178 #endif /* AVFORMAT_ASF_H */