2 * Copyright (c) 2000, 2001 Fabrice Bellard.
4 * This file is part of FFmpeg.
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.
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.
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
20 #define PACKET_SIZE 3200
31 int ds_span; /* descrambling */
39 typedef uint8_t GUID[16];
42 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
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 */
68 uint32_t packet_number;
69 uint16_t packet_count;
75 unsigned int packet_size;
77 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 /* non streamed additonnal info */
80 uint64_t nb_packets; ///< how many packets are there in the file, invalid if broadcasting
81 int64_t duration; ///< in 100ns units
83 unsigned char multi_payloads_present;
85 int packet_timestamp_start;
86 int packet_timestamp_end;
87 unsigned int packet_nb_payloads;
89 uint8_t packet_buf[PACKET_SIZE];
91 /* only for reading */
92 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
101 int packet_timestamp;
102 int packet_segsizetype;
105 int packet_replic_size;
106 int packet_key_frame;
108 unsigned int packet_frag_offset;
109 unsigned int packet_frag_size;
110 int64_t packet_frag_timestamp;
111 int packet_multi_size;
113 int packet_time_delta;
114 int packet_time_start;
120 int64_t last_indexed_pts;
122 uint32_t nb_index_count;
123 uint32_t nb_index_memory_alloc;
124 uint16_t maximum_packet;
126 ASFStream* asf_st; ///< currently decoded stream
129 static const GUID asf_header = {
130 0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C
133 static const GUID file_header = {
134 0xA1, 0xDC, 0xAB, 0x8C, 0x47, 0xA9, 0xCF, 0x11, 0x8E, 0xE4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
137 static const GUID stream_header = {
138 0x91, 0x07, 0xDC, 0xB7, 0xB7, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65
141 static const GUID ext_stream_header = {
142 0xCB, 0xA5, 0xE6, 0x14, 0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A
145 static const GUID audio_stream = {
146 0x40, 0x9E, 0x69, 0xF8, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
149 static const GUID audio_conceal_none = {
150 // 0x40, 0xa4, 0xf1, 0x49, 0x4ece, 0x11d0, 0xa3, 0xac, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
151 // New value lifted from avifile
152 0x00, 0x57, 0xfb, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xa8, 0xfd, 0x00, 0x80, 0x5f, 0x5c, 0x44, 0x2b
155 static const GUID audio_conceal_spread = {
156 0x50, 0xCD, 0xC3, 0xBF, 0x8F, 0x61, 0xCF, 0x11, 0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20
159 static const GUID video_stream = {
160 0xC0, 0xEF, 0x19, 0xBC, 0x4D, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
163 static const GUID video_conceal_none = {
164 0x00, 0x57, 0xFB, 0x20, 0x55, 0x5B, 0xCF, 0x11, 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B
167 static const GUID command_stream = {
168 0xC0, 0xCF, 0xDA, 0x59, 0xE6, 0x59, 0xD0, 0x11, 0xA3, 0xAC, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
171 static const GUID comment_header = {
172 0x33, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
175 static const GUID codec_comment_header = {
176 0x40, 0x52, 0xD1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6
178 static const GUID codec_comment1_header = {
179 0x41, 0x52, 0xd1, 0x86, 0x1D, 0x31, 0xD0, 0x11, 0xa3, 0xa4, 0x00, 0xa0, 0xc9, 0x03, 0x48, 0xf6
182 static const GUID data_header = {
183 0x36, 0x26, 0xb2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c
186 static const GUID head1_guid = {
187 0xb5, 0x03, 0xbf, 0x5f, 0x2E, 0xA9, 0xCF, 0x11, 0x8e, 0xe3, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
190 static const GUID head2_guid = {
191 0x11, 0xd2, 0xd3, 0xab, 0xBA, 0xA9, 0xCF, 0x11, 0x8e, 0xe6, 0x00, 0xc0, 0x0c, 0x20, 0x53, 0x65
194 static const GUID extended_content_header = {
195 0x40, 0xA4, 0xD0, 0xD2, 0x07, 0xE3, 0xD2, 0x11, 0x97, 0xF0, 0x00, 0xA0, 0xC9, 0x5E, 0xA8, 0x50
198 static const GUID simple_index_header = {
199 0x90, 0x08, 0x00, 0x33, 0xB1, 0xE5, 0xCF, 0x11, 0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB
202 static const GUID ext_stream_embed_stream_header = {
203 0xe2, 0x65, 0xfb, 0x3a, 0xEF, 0x47, 0xF2, 0x40, 0xac, 0x2c, 0x70, 0xa9, 0x0d, 0x71, 0xd3, 0x43
206 static const GUID ext_stream_audio_stream = {
207 0x9d, 0x8c, 0x17, 0x31, 0xE1, 0x03, 0x28, 0x45, 0xb5, 0x82, 0x3d, 0xf9, 0xdb, 0x22, 0xf5, 0x03
210 static const GUID metadata_header = {
211 0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca
214 /* 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 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
220 #define ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT 0x80 //1000 0000
223 // ASF data packet structure
224 // =========================
227 // -----------------------------------
228 // | Error Correction Data | Optional
229 // -----------------------------------
230 // | Payload Parsing Information (PPI) |
231 // -----------------------------------
233 // -----------------------------------
235 // -----------------------------------
238 // PPI_FLAG - Payload parsing information flags
239 #define ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT 1
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
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
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
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
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
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
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
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
279 #define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000