FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/asfenc.c
Date: 2022-12-06 04:36:11
Exec Total Coverage
Lines: 389 554 70.2%
Functions: 15 19 78.9%
Branches: 134 242 55.4%

Line Branch Exec Source
1 /*
2 * ASF muxer
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "config_components.h"
23
24 #include "libavutil/avassert.h"
25 #include "libavutil/dict.h"
26 #include "libavutil/mathematics.h"
27 #include "libavutil/opt.h"
28 #include "libavcodec/codec_desc.h"
29 #include "avformat.h"
30 #include "avlanguage.h"
31 #include "avio_internal.h"
32 #include "internal.h"
33 #include "mux.h"
34 #include "riff.h"
35 #include "asf.h"
36
37 #define ASF_INDEXED_INTERVAL 10000000
38 #define ASF_INDEX_BLOCK (1<<9)
39 #define ASF_PAYLOADS_PER_PACKET 63
40
41 #define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2
42 #define ASF_PACKET_ERROR_CORRECTION_FLAGS \
43 (ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \
44 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE)
45
46 #if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0)
47 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1
48 #else
49 # define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0
50 #endif
51
52 #define ASF_PPI_PROPERTY_FLAGS \
53 (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \
54 ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \
55 ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \
56 ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE)
57
58 #define ASF_PPI_LENGTH_TYPE_FLAGS 0
59
60 #define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD
61
62 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
63 # define ASF_PPI_SEQUENCE_FIELD_SIZE 1
64 #endif
65 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
66 # define ASF_PPI_SEQUENCE_FIELD_SIZE 2
67 #endif
68 #if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE))
69 # define ASF_PPI_SEQUENCE_FIELD_SIZE 4
70 #endif
71 #ifndef ASF_PPI_SEQUENCE_FIELD_SIZE
72 # define ASF_PPI_SEQUENCE_FIELD_SIZE 0
73 #endif
74
75 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
76 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1
77 #endif
78 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
79 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2
80 #endif
81 #if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE))
82 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4
83 #endif
84 #ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE
85 # define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0
86 #endif
87
88 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
89 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1
90 #endif
91 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
92 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2
93 #endif
94 #if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE))
95 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4
96 #endif
97 #ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE
98 # define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0
99 #endif
100
101 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
102 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1
103 #endif
104 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
105 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2
106 #endif
107 #if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE))
108 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4
109 #endif
110 #ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE
111 # define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0
112 #endif
113
114 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
115 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1
116 #endif
117 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
118 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2
119 #endif
120 #if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE))
121 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4
122 #endif
123 #ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE
124 # define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0
125 #endif
126
127 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
128 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1
129 #endif
130 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
131 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2
132 #endif
133 #if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE))
134 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4
135 #endif
136 #ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE
137 # define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0
138 #endif
139
140 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
141 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1
142 #endif
143 #if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE))
144 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2
145 #endif
146 #ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE
147 # define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0
148 #endif
149
150 #define PACKET_HEADER_MIN_SIZE \
151 (ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \
152 ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \
153 1 + /* Length Type Flags */ \
154 1 + /* Property Flags */ \
155 ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \
156 ASF_PPI_SEQUENCE_FIELD_SIZE + \
157 ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \
158 4 + /* Send Time Field */ \
159 2) /* Duration Field */
160
161 // Replicated Data shall be at least 8 bytes long.
162 #define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08
163
164 #define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \
165 (1 + /* Stream Number */ \
166 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
167 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
168 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
169 ASF_PAYLOAD_REPLICATED_DATA_LENGTH)
170
171 #define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \
172 (1 + /* Stream Number */ \
173 ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \
174 ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \
175 ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \
176 ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \
177 ASF_PAYLOAD_LENGTH_FIELD_SIZE)
178
179 #define SINGLE_PAYLOAD_HEADERS \
180 (PACKET_HEADER_MIN_SIZE + \
181 PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD)
182
183 #define MULTI_PAYLOAD_HEADERS \
184 (PACKET_HEADER_MIN_SIZE + \
185 1 + /* Payload Flags */ \
186 2 * PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS)
187
188 #define DATA_HEADER_SIZE 50
189
190 #define PACKET_SIZE_MAX 65536
191 #define PACKET_SIZE_MIN 100
192
193 typedef struct ASFStream {
194 int num;
195 unsigned char seq;
196
197 uint16_t stream_language_index;
198 } ASFStream;
199
200 typedef struct ASFContext {
201 AVClass *av_class;
202 uint32_t seqno;
203 int is_streamed;
204 ASFStream streams[128]; ///< it's max number and it's not that big
205 const char *languages[128];
206 int nb_languages;
207 int64_t creation_time;
208 /* non-streamed additional info */
209 uint64_t nb_packets; ///< how many packets are there in the file, invalid if broadcasting
210 int64_t duration; ///< in 100ns units
211 /* packet filling */
212 unsigned char multi_payloads_present;
213 int packet_size_left;
214 int64_t packet_timestamp_start;
215 int64_t packet_timestamp_end;
216 unsigned int packet_nb_payloads;
217 uint8_t packet_buf[PACKET_SIZE_MAX];
218 FFIOContext pb;
219 /* only for reading */
220 uint64_t data_offset; ///< beginning of the first data packet
221
222 ASFIndex *index_ptr;
223 uint32_t nb_index_memory_alloc;
224 uint16_t maximum_packet;
225 uint32_t next_packet_number;
226 uint16_t next_packet_count;
227 uint64_t next_packet_offset;
228 int next_start_sec;
229 int end_sec;
230 int packet_size;
231 } ASFContext;
232
233 static const AVCodecTag codec_asf_bmp_tags[] = {
234 { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
235 { AV_CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
236 { AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
237 { AV_CODEC_ID_NONE, 0 },
238 };
239
240 static const AVCodecTag *const asf_codec_tags[] = {
241 codec_asf_bmp_tags, ff_codec_bmp_tags, ff_codec_wav_tags, NULL
242 };
243
244 #define PREROLL_TIME 3100
245
246 12 static void put_str16(AVIOContext *s, AVIOContext *dyn_buf, const char *tag)
247 {
248 uint8_t *buf;
249 int len;
250
251 12 avio_put_str16le(dyn_buf, tag);
252 12 len = avio_get_dyn_buf(dyn_buf, &buf);
253 12 avio_wl16(s, len);
254 12 avio_write(s, buf, len);
255 12 ffio_reset_dyn_buf(dyn_buf);
256 12 }
257
258 34 static int64_t put_header(AVIOContext *pb, const ff_asf_guid *g)
259 {
260 int64_t pos;
261
262 34 pos = avio_tell(pb);
263 34 ff_put_guid(pb, g);
264 34 avio_wl64(pb, 24);
265 34 return pos;
266 }
267
268 /* update header size */
269 34 static void end_header(AVIOContext *pb, int64_t pos)
270 {
271 int64_t pos1;
272
273 34 pos1 = avio_tell(pb);
274 34 avio_seek(pb, pos + 16, SEEK_SET);
275 34 avio_wl64(pb, pos1 - pos);
276 34 avio_seek(pb, pos1, SEEK_SET);
277 34 }
278
279 /* write an asf chunk (only used in streaming case) */
280 static void put_chunk(AVFormatContext *s, int type,
281 int payload_length, int flags)
282 {
283 ASFContext *asf = s->priv_data;
284 AVIOContext *pb = s->pb;
285 int length;
286
287 length = payload_length + 8;
288 avio_wl16(pb, type);
289 avio_wl16(pb, length); // size
290 avio_wl32(pb, asf->seqno); // sequence number
291 avio_wl16(pb, flags); // unknown bytes
292 avio_wl16(pb, length); // size_confirm
293 asf->seqno++;
294 }
295
296 /* convert from av time to windows time */
297 6 static int64_t unix_to_file_time(int64_t ti)
298 {
299 int64_t t;
300
301 6 t = ti * INT64_C(10);
302 6 t += INT64_C(116444736000000000);
303 6 return t;
304 }
305
306 static int32_t get_send_time(ASFContext *asf, int64_t pres_time, uint64_t *offset)
307 {
308 int32_t send_time = 0;
309 *offset = asf->data_offset + DATA_HEADER_SIZE;
310 for (int i = 0; i < asf->next_start_sec; i++) {
311 if (pres_time <= asf->index_ptr[i].send_time)
312 break;
313 send_time = asf->index_ptr[i].send_time;
314 *offset = asf->index_ptr[i].offset;
315 }
316
317 return send_time / 10000;
318 }
319
320 static void asf_write_markers(AVFormatContext *s, AVIOContext *dyn_buf)
321 {
322 ASFContext *asf = s->priv_data;
323 AVIOContext *pb = s->pb;
324 AVRational scale = {1, 10000000};
325 int64_t hpos = put_header(pb, &ff_asf_marker_header);
326
327 ff_put_guid(pb, &ff_asf_reserved_4);// ASF spec mandates this reserved value
328 avio_wl32(pb, s->nb_chapters); // markers count
329 avio_wl16(pb, 0); // ASF spec mandates 0 for this
330 avio_wl16(pb, 0); // name length 0, no name given
331
332 for (unsigned i = 0; i < s->nb_chapters; i++) {
333 AVChapter *c = s->chapters[i];
334 AVDictionaryEntry *t = av_dict_get(c->metadata, "title", NULL, 0);
335 int64_t pres_time = av_rescale_q(c->start, c->time_base, scale);
336 uint64_t offset;
337 int32_t send_time = get_send_time(asf, pres_time, &offset);
338 int len = 0;
339 uint8_t *buf;
340 if (t) {
341 avio_put_str16le(dyn_buf, t->value);
342 len = avio_get_dyn_buf(dyn_buf, &buf);
343 }
344 avio_wl64(pb, offset); // offset of the packet with send_time
345 avio_wl64(pb, pres_time + PREROLL_TIME * 10000); // presentation time
346 avio_wl16(pb, 12 + len); // entry length
347 avio_wl32(pb, send_time); // send time
348 avio_wl32(pb, 0); // flags, should be 0
349 avio_wl32(pb, len / 2); // marker desc length in WCHARS!
350 if (t) {
351 avio_write(pb, buf, len); // marker desc
352 ffio_reset_dyn_buf(dyn_buf);
353 }
354 }
355 end_header(pb, hpos);
356 }
357
358 /* write the header (used two times if non streamed) */
359 6 static int asf_write_header1(AVFormatContext *s, int64_t file_size,
360 int64_t data_chunk_size)
361 {
362 6 ASFContext *asf = s->priv_data;
363 6 AVIOContext *pb = s->pb, *dyn_buf;
364 AVDictionaryEntry *tags[5];
365 int header_size, extra_size, extra_size2, wav_extra_size;
366 6 int has_title, has_aspect_ratio = 0;
367 int metadata_count;
368 int64_t header_offset, cur_pos, hpos;
369 int bit_rate, ret;
370 int64_t duration;
371 6 int audio_language_counts[128] = { 0 };
372
373 6 ff_metadata_conv(&s->metadata, ff_asf_metadata_conv, NULL);
374
375 6 tags[0] = av_dict_get(s->metadata, "title", NULL, 0);
376 6 tags[1] = av_dict_get(s->metadata, "author", NULL, 0);
377 6 tags[2] = av_dict_get(s->metadata, "copyright", NULL, 0);
378 6 tags[3] = av_dict_get(s->metadata, "comment", NULL, 0);
379 6 tags[4] = av_dict_get(s->metadata, "rating", NULL, 0);
380
381 6 duration = asf->duration + PREROLL_TIME * 10000;
382
6/10
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 4 times.
✗ Branch 5 not taken.
✓ Branch 6 taken 4 times.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✓ Branch 9 taken 4 times.
6 has_title = tags[0] || tags[1] || tags[2] || tags[3] || tags[4];
383
384
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 3 times.
6 if (!file_size) {
385
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
3 if (ff_parse_creation_time_metadata(s, &asf->creation_time, 0) != 0)
386 av_dict_set(&s->metadata, "creation_time", NULL, 0);
387 }
388
389 6 metadata_count = av_dict_count(s->metadata);
390
391 6 bit_rate = 0;
392
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 6 times.
14 for (unsigned n = 0; n < s->nb_streams; n++) {
393 8 AVStream *const st = s->streams[n];
394 8 AVCodecParameters *const par = st->codecpar;
395 AVDictionaryEntry *entry;
396
397 8 avpriv_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */
398
399 8 bit_rate += par->bit_rate;
400
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 6 times.
8 if ( par->codec_type == AVMEDIA_TYPE_VIDEO
401
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 && par->sample_aspect_ratio.num > 0
402 && par->sample_aspect_ratio.den > 0)
403 has_aspect_ratio++;
404
405 8 entry = av_dict_get(s->streams[n]->metadata, "language", NULL, 0);
406
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
8 if (entry) {
407 const char *iso6391lang = ff_convert_lang_to(entry->value, AV_LANG_ISO639_1);
408 if (iso6391lang) {
409 int i;
410 for (i = 0; i < asf->nb_languages; i++) {
411 if (!strcmp(asf->languages[i], iso6391lang)) {
412 asf->streams[n].stream_language_index = i;
413 break;
414 }
415 }
416 if (i >= asf->nb_languages) {
417 asf->languages[asf->nb_languages] = iso6391lang;
418 asf->streams[n].stream_language_index = asf->nb_languages;
419 asf->nb_languages++;
420 }
421 if (par->codec_type == AVMEDIA_TYPE_AUDIO)
422 audio_language_counts[asf->streams[n].stream_language_index]++;
423 }
424 } else {
425 8 asf->streams[n].stream_language_index = 128;
426 }
427 }
428
429
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
6 if (asf->is_streamed) {
430 put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */
431 }
432
433 6 ff_put_guid(pb, &ff_asf_header);
434 6 avio_wl64(pb, -1); /* header length, will be patched after */
435 6 avio_wl32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */
436 6 avio_w8(pb, 1); /* ??? */
437 6 avio_w8(pb, 2); /* ??? */
438
439 /* file header */
440 6 header_offset = avio_tell(pb);
441 6 hpos = put_header(pb, &ff_asf_file_header);
442 6 ff_put_guid(pb, &ff_asf_my_guid);
443 6 avio_wl64(pb, file_size);
444 6 avio_wl64(pb, unix_to_file_time(asf->creation_time));
445 6 avio_wl64(pb, asf->nb_packets); /* number of packets */
446 6 avio_wl64(pb, duration); /* end time stamp (in 100ns units) */
447 6 avio_wl64(pb, asf->duration); /* duration (in 100ns units) */
448 6 avio_wl64(pb, PREROLL_TIME); /* start time stamp */
449
2/4
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 6 times.
6 avio_wl32(pb, (asf->is_streamed || !(pb->seekable & AVIO_SEEKABLE_NORMAL)) ? 3 : 2); /* ??? */
450 6 avio_wl32(pb, s->packet_size); /* packet size */
451 6 avio_wl32(pb, s->packet_size); /* packet size */
452
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
6 avio_wl32(pb, bit_rate ? bit_rate : -1); /* Maximum data rate in bps */
453 6 end_header(pb, hpos);
454
455 /* header_extension */
456 6 hpos = put_header(pb, &ff_asf_head1_guid);
457 6 ff_put_guid(pb, &ff_asf_head2_guid);
458 6 avio_wl16(pb, 6);
459 6 avio_wl32(pb, 0); /* length, to be filled later */
460
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
6 if (asf->nb_languages) {
461 int64_t hpos2;
462 int nb_audio_languages = 0;
463
464 hpos2 = put_header(pb, &ff_asf_language_guid);
465 avio_wl16(pb, asf->nb_languages);
466 for (int i = 0; i < asf->nb_languages; i++) {
467 avio_w8(pb, 6);
468 avio_put_str16le(pb, asf->languages[i]);
469 }
470 end_header(pb, hpos2);
471
472 for (int i = 0; i < asf->nb_languages; i++)
473 if (audio_language_counts[i])
474 nb_audio_languages++;
475
476 if (nb_audio_languages > 1) {
477 hpos2 = put_header(pb, &ff_asf_group_mutual_exclusion_object);
478 ff_put_guid(pb, &ff_asf_mutex_language);
479 avio_wl16(pb, nb_audio_languages);
480 for (int i = 0; i < asf->nb_languages; i++) {
481 if (audio_language_counts[i]) {
482 avio_wl16(pb, audio_language_counts[i]);
483 for (unsigned n = 0; n < s->nb_streams; n++)
484 if (asf->streams[n].stream_language_index == i && s->streams[n]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
485 avio_wl16(pb, n + 1);
486 }
487 }
488 end_header(pb, hpos2);
489 }
490
491 for (unsigned n = 0; n < s->nb_streams; n++) {
492 int64_t es_pos;
493 if (asf->streams[n].stream_language_index > 127)
494 continue;
495 es_pos = put_header(pb, &ff_asf_extended_stream_properties_object);
496 avio_wl64(pb, 0); /* start time */
497 avio_wl64(pb, 0); /* end time */
498 avio_wl32(pb, s->streams[n]->codecpar->bit_rate); /* data bitrate bps */
499 avio_wl32(pb, 5000); /* buffer size ms */
500 avio_wl32(pb, 0); /* initial buffer fullness */
501 avio_wl32(pb, s->streams[n]->codecpar->bit_rate); /* peak data bitrate */
502 avio_wl32(pb, 5000); /* maximum buffer size ms */
503 avio_wl32(pb, 0); /* max initial buffer fullness */
504 avio_wl32(pb, 0); /* max object size */
505 avio_wl32(pb, (!asf->is_streamed && (pb->seekable & AVIO_SEEKABLE_NORMAL)) << 1); /* flags - seekable */
506 avio_wl16(pb, n + 1); /* stream number */
507 avio_wl16(pb, asf->streams[n].stream_language_index); /* language id index */
508 avio_wl64(pb, 0); /* avg time per frame */
509 avio_wl16(pb, 0); /* stream name count */
510 avio_wl16(pb, 0); /* payload extension system count */
511 end_header(pb, es_pos);
512 }
513 }
514
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
6 if (has_aspect_ratio) {
515 int64_t hpos2;
516 hpos2 = put_header(pb, &ff_asf_metadata_header);
517 avio_wl16(pb, 2 * has_aspect_ratio);
518 for (unsigned n = 0; n < s->nb_streams; n++) {
519 AVCodecParameters *const par = s->streams[n]->codecpar;
520 if ( par->codec_type == AVMEDIA_TYPE_VIDEO
521 && par->sample_aspect_ratio.num > 0
522 && par->sample_aspect_ratio.den > 0) {
523 AVRational sar = par->sample_aspect_ratio;
524 avio_wl16(pb, 0);
525 // the stream number is set like this below
526 avio_wl16(pb, n + 1);
527 avio_wl16(pb, 26); // name_len
528 avio_wl16(pb, 3); // value_type
529 avio_wl32(pb, 4); // value_len
530 avio_put_str16le(pb, "AspectRatioX");
531 avio_wl32(pb, sar.num);
532 avio_wl16(pb, 0);
533 // the stream number is set like this below
534 avio_wl16(pb, n + 1);
535 avio_wl16(pb, 26); // name_len
536 avio_wl16(pb, 3); // value_type
537 avio_wl32(pb, 4); // value_len
538 avio_put_str16le(pb, "AspectRatioY");
539 avio_wl32(pb, sar.den);
540 }
541 }
542 end_header(pb, hpos2);
543 }
544 {
545 int64_t pos1;
546 6 pos1 = avio_tell(pb);
547 6 avio_seek(pb, hpos + 42, SEEK_SET);
548 6 avio_wl32(pb, pos1 - hpos - 46);
549 6 avio_seek(pb, pos1, SEEK_SET);
550 }
551 6 end_header(pb, hpos);
552
553
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
6 if ((ret = avio_open_dyn_buf(&dyn_buf)) < 0)
554 return ret;
555
556 /* title and other info */
557
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 4 times.
6 if (has_title) {
558 uint8_t *buf;
559 int len;
560
561 2 hpos = put_header(pb, &ff_asf_comment_header);
562
563
2/2
✓ Branch 0 taken 10 times.
✓ Branch 1 taken 2 times.
12 for (size_t n = 0; n < FF_ARRAY_ELEMS(tags); n++) {
564
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
10 len = tags[n] ? avio_put_str16le(dyn_buf, tags[n]->value) : 0;
565 10 avio_wl16(pb, len);
566 }
567 2 len = avio_get_dyn_buf(dyn_buf, &buf);
568 2 avio_write(pb, buf, len);
569 2 ffio_reset_dyn_buf(dyn_buf);
570 2 end_header(pb, hpos);
571 }
572
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
6 if (metadata_count) {
573 6 const AVDictionaryEntry *tag = NULL;
574 6 hpos = put_header(pb, &ff_asf_extended_content_header);
575 6 avio_wl16(pb, metadata_count);
576
2/2
✓ Branch 1 taken 6 times.
✓ Branch 2 taken 6 times.
12 while ((tag = av_dict_iterate(s->metadata, tag))) {
577 6 put_str16(pb, dyn_buf, tag->key);
578 6 avio_wl16(pb, 0);
579 6 put_str16(pb, dyn_buf, tag->value);
580 }
581 6 end_header(pb, hpos);
582 }
583 /* chapters using ASF markers */
584
2/4
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 6 times.
6 if (!asf->is_streamed && s->nb_chapters) {
585 asf_write_markers(s, dyn_buf);
586 }
587 /* stream headers */
588
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 6 times.
14 for (unsigned n = 0; n < s->nb_streams; n++) {
589 8 AVCodecParameters *const par = s->streams[n]->codecpar;
590 int64_t es_pos;
591 // ASFStream *stream = &asf->streams[n];
592
593 8 asf->streams[n].num = n + 1;
594 8 asf->streams[n].seq = 1;
595
596
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 2 times.
8 switch (par->codec_type) {
597 6 case AVMEDIA_TYPE_AUDIO:
598 6 wav_extra_size = 0;
599 6 extra_size = 18 + wav_extra_size;
600 6 extra_size2 = 8;
601 6 break;
602 2 default:
603 case AVMEDIA_TYPE_VIDEO:
604 2 wav_extra_size = par->extradata_size;
605 2 extra_size = 0x33 + wav_extra_size;
606 2 extra_size2 = 0;
607 2 break;
608 }
609
610 8 hpos = put_header(pb, &ff_asf_stream_header);
611
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 2 times.
8 if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
612 6 ff_put_guid(pb, &ff_asf_audio_stream);
613 6 ff_put_guid(pb, &ff_asf_audio_conceal_spread);
614 } else {
615 2 ff_put_guid(pb, &ff_asf_video_stream);
616 2 ff_put_guid(pb, &ff_asf_video_conceal_none);
617 }
618 8 avio_wl64(pb, 0); /* ??? */
619 8 es_pos = avio_tell(pb);
620 8 avio_wl32(pb, extra_size); /* wav header len */
621 8 avio_wl32(pb, extra_size2); /* additional data len */
622 8 avio_wl16(pb, n + 1); /* stream number */
623 8 avio_wl32(pb, 0); /* ??? */
624
625
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 2 times.
8 if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
626 /* WAVEFORMATEX header */
627 6 int wavsize = ff_put_wav_header(s, pb, par, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX);
628
629
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
6 if (wavsize < 0) {
630 ret = wavsize;
631 goto fail;
632 }
633
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
6 if (wavsize != extra_size) {
634 6 cur_pos = avio_tell(pb);
635 6 avio_seek(pb, es_pos, SEEK_SET);
636 6 avio_wl32(pb, wavsize); /* wav header len */
637 6 avio_seek(pb, cur_pos, SEEK_SET);
638 }
639 /* ERROR Correction */
640 6 avio_w8(pb, 0x01);
641
3/4
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 4 times.
6 if (par->codec_id == AV_CODEC_ID_ADPCM_G726 || !par->block_align) {
642 2 avio_wl16(pb, 0x0190);
643 2 avio_wl16(pb, 0x0190);
644 } else {
645 4 avio_wl16(pb, par->block_align);
646 4 avio_wl16(pb, par->block_align);
647 }
648 6 avio_wl16(pb, 0x01);
649 6 avio_w8(pb, 0x00);
650 } else {
651 2 avio_wl32(pb, par->width);
652 2 avio_wl32(pb, par->height);
653 2 avio_w8(pb, 2); /* ??? */
654 2 avio_wl16(pb, 40 + par->extradata_size); /* size */
655
656 /* BITMAPINFOHEADER header */
657 2 ff_put_bmp_header(pb, par, 1, 0, 0);
658 }
659 8 end_header(pb, hpos);
660 }
661
662 /* media comments */
663
664 6 hpos = put_header(pb, &ff_asf_codec_comment_header);
665 6 ff_put_guid(pb, &ff_asf_codec_comment1_header);
666 6 avio_wl32(pb, s->nb_streams);
667
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 6 times.
14 for (unsigned n = 0; n < s->nb_streams; n++) {
668 8 AVCodecParameters *const par = s->streams[n]->codecpar;
669 8 const AVCodecDescriptor *const codec_desc = avcodec_descriptor_get(par->codec_id);
670 const char *desc;
671
672
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 2 times.
8 if (par->codec_type == AVMEDIA_TYPE_AUDIO)
673 6 avio_wl16(pb, 2);
674
1/2
✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.
2 else if (par->codec_type == AVMEDIA_TYPE_VIDEO)
675 2 avio_wl16(pb, 1);
676 else
677 avio_wl16(pb, -1);
678
679
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 6 times.
8 if (par->codec_id == AV_CODEC_ID_WMAV2)
680 2 desc = "Windows Media Audio V8";
681 else
682
1/2
✓ Branch 0 taken 6 times.
✗ Branch 1 not taken.
6 desc = codec_desc ? codec_desc->name : NULL;
683
684
1/2
✓ Branch 0 taken 8 times.
✗ Branch 1 not taken.
8 if (desc) {
685 uint8_t *buf;
686 int len;
687
688 8 avio_put_str16le(dyn_buf, desc);
689 8 len = avio_get_dyn_buf(dyn_buf, &buf);
690 8 avio_wl16(pb, len / 2); // "number of characters" = length in bytes / 2
691
692 8 avio_write(pb, buf, len);
693 8 ffio_reset_dyn_buf(dyn_buf);
694 } else
695 avio_wl16(pb, 0);
696
697 8 avio_wl16(pb, 0); /* no parameters */
698
699 /* id */
700
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 2 times.
8 if (par->codec_type == AVMEDIA_TYPE_AUDIO) {
701 6 avio_wl16(pb, 2);
702 6 avio_wl16(pb, par->codec_tag);
703 } else {
704 2 avio_wl16(pb, 4);
705 2 avio_wl32(pb, par->codec_tag);
706 }
707
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
8 if (!par->codec_tag) {
708 ret = AVERROR(EINVAL);
709 goto fail;
710 }
711 }
712 6 end_header(pb, hpos);
713
714 /* patch the header size fields */
715
716 6 cur_pos = avio_tell(pb);
717 6 header_size = cur_pos - header_offset;
718
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
6 if (asf->is_streamed) {
719 header_size += 8 + 30 + DATA_HEADER_SIZE;
720
721 avio_seek(pb, header_offset - 10 - 30, SEEK_SET);
722 avio_wl16(pb, header_size);
723 avio_seek(pb, header_offset - 2 - 30, SEEK_SET);
724 avio_wl16(pb, header_size);
725
726 header_size -= 8 + 30 + DATA_HEADER_SIZE;
727 }
728 6 header_size += 24 + 6;
729 6 avio_seek(pb, header_offset - 14, SEEK_SET);
730 6 avio_wl64(pb, header_size);
731 6 avio_seek(pb, cur_pos, SEEK_SET);
732
733 /* movie chunk, followed by packets of packet_size */
734 6 asf->data_offset = cur_pos;
735 6 ff_put_guid(pb, &ff_asf_data_header);
736 6 avio_wl64(pb, data_chunk_size);
737 6 ff_put_guid(pb, &ff_asf_my_guid);
738 6 avio_wl64(pb, asf->nb_packets); /* nb packets */
739 6 avio_w8(pb, 1); /* ??? */
740 6 avio_w8(pb, 1); /* ??? */
741 6 ret = 0;
742 6 fail:
743 6 ffio_free_dyn_buf(&dyn_buf);
744 6 return ret;
745 }
746
747 3 static int asf_write_header(AVFormatContext *s)
748 {
749 3 ASFContext *asf = s->priv_data;
750 int ret;
751
752 3 s->packet_size = asf->packet_size;
753 3 s->max_interleave_delta = 0;
754 3 asf->nb_packets = 0;
755
756
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.
3 if (s->nb_streams > 127) {
757 av_log(s, AV_LOG_ERROR, "ASF can only handle 127 streams\n");
758 return AVERROR(EINVAL);
759 }
760
761 3 asf->index_ptr = av_malloc(sizeof(ASFIndex) * ASF_INDEX_BLOCK);
762
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.
3 if (!asf->index_ptr)
763 return AVERROR(ENOMEM);
764 3 asf->nb_index_memory_alloc = ASF_INDEX_BLOCK;
765 3 asf->maximum_packet = 0;
766
767 /* the data-chunk-size has to be 50 (DATA_HEADER_SIZE), which is
768 * data_size - asf->data_offset at the moment this function is done.
769 * It is needed to use asf as a streamable format. */
770
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
3 if ((ret = asf_write_header1(s, 0, DATA_HEADER_SIZE)) < 0)
771 return ret;
772
773 3 asf->packet_nb_payloads = 0;
774 3 asf->packet_timestamp_start = -1;
775 3 asf->packet_timestamp_end = -1;
776 3 ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
777 NULL, NULL, NULL, NULL);
778
779
1/2
✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
3 if (s->avoid_negative_ts < 0)
780 3 s->avoid_negative_ts = 1;
781
782 3 return 0;
783 }
784
785 static int asf_write_stream_header(AVFormatContext *s)
786 {
787 ASFContext *asf = s->priv_data;
788
789 asf->is_streamed = 1;
790
791 return asf_write_header(s);
792 }
793
794 208 static int put_payload_parsing_info(AVFormatContext *s,
795 unsigned sendtime, unsigned duration,
796 int nb_payloads, int padsize)
797 {
798 208 ASFContext *asf = s->priv_data;
799 208 AVIOContext *pb = s->pb;
800 int ppi_size;
801 208 int64_t start = avio_tell(pb);
802
803 208 int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS;
804
805 208 padsize -= PACKET_HEADER_MIN_SIZE;
806
2/2
✓ Branch 0 taken 135 times.
✓ Branch 1 taken 73 times.
208 if (asf->multi_payloads_present)
807 135 padsize--;
808
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 208 times.
208 av_assert0(padsize >= 0);
809
810 208 avio_w8(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS);
811 208 ffio_fill(pb, 0x0, ASF_PACKET_ERROR_CORRECTION_DATA_SIZE);
812
813
2/2
✓ Branch 0 taken 135 times.
✓ Branch 1 taken 73 times.
208 if (asf->multi_payloads_present)
814 135 iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT;
815
816
2/2
✓ Branch 0 taken 110 times.
✓ Branch 1 taken 98 times.
208 if (padsize > 0) {
817
2/2
✓ Branch 0 taken 107 times.
✓ Branch 1 taken 3 times.
110 if (padsize < 256)
818 107 iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE;
819 else
820 3 iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD;
821 }
822 208 avio_w8(pb, iLengthTypeFlags);
823
824 208 avio_w8(pb, ASF_PPI_PROPERTY_FLAGS);
825
826
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 205 times.
208 if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD)
827 3 avio_wl16(pb, padsize - 2);
828
2/2
✓ Branch 0 taken 107 times.
✓ Branch 1 taken 101 times.
208 if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE)
829 107 avio_w8(pb, padsize - 1);
830
831 208 avio_wl32(pb, sendtime);
832 208 avio_wl16(pb, duration);
833
2/2
✓ Branch 0 taken 135 times.
✓ Branch 1 taken 73 times.
208 if (asf->multi_payloads_present)
834 135 avio_w8(pb, nb_payloads | ASF_PAYLOAD_FLAGS);
835
836 208 ppi_size = avio_tell(pb) - start;
837
838 208 return ppi_size;
839 }
840
841 208 static void flush_packet(AVFormatContext *s)
842 {
843 208 ASFContext *asf = s->priv_data;
844 int packet_hdr_size, packet_filled_size;
845
846
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 208 times.
208 av_assert0(asf->packet_timestamp_end >= asf->packet_timestamp_start);
847
848
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 208 times.
208 if (asf->is_streamed)
849 put_chunk(s, 0x4424, s->packet_size, 0);
850
851 208 packet_hdr_size = put_payload_parsing_info(s,
852 208 asf->packet_timestamp_start,
853 208 asf->packet_timestamp_end - asf->packet_timestamp_start,
854 208 asf->packet_nb_payloads,
855 asf->packet_size_left);
856
857 208 packet_filled_size = asf->packet_size - asf->packet_size_left;
858
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 208 times.
208 av_assert0(packet_hdr_size <= asf->packet_size_left);
859 208 memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left);
860
861 208 avio_write(s->pb, asf->packet_buf, s->packet_size - packet_hdr_size);
862
863 208 avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
864
865 208 asf->nb_packets++;
866 208 asf->packet_nb_payloads = 0;
867 208 asf->packet_timestamp_start = -1;
868 208 asf->packet_timestamp_end = -1;
869 208 ffio_init_context(&asf->pb, asf->packet_buf, s->packet_size, 1,
870 NULL, NULL, NULL, NULL);
871 208 }
872
873 572 static void put_payload_header(AVFormatContext *s, ASFStream *stream,
874 int64_t presentation_time, int m_obj_size,
875 int m_obj_offset, int payload_len, int flags)
876 {
877 572 ASFContext *asf = s->priv_data;
878 572 AVIOContext *const pb = &asf->pb.pub;
879 int val;
880
881 572 val = stream->num;
882
2/2
✓ Branch 0 taken 30 times.
✓ Branch 1 taken 542 times.
572 if (flags & AV_PKT_FLAG_KEY)
883 30 val |= ASF_PL_FLAG_KEY_FRAME;
884 572 avio_w8(pb, val);
885
886 572 avio_w8(pb, stream->seq); // Media object number
887 572 avio_wl32(pb, m_obj_offset); // Offset Into Media Object
888
889 // Replicated Data shall be at least 8 bytes long.
890 // The first 4 bytes of data shall contain the
891 // Size of the Media Object that the payload belongs to.
892 // The next 4 bytes of data shall contain the
893 // Presentation Time for the media object that the payload belongs to.
894 572 avio_w8(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH);
895
896 572 avio_wl32(pb, m_obj_size); // Replicated Data - Media Object Size
897 572 avio_wl32(pb, (uint32_t) presentation_time); // Replicated Data - Presentation Time
898
899
2/2
✓ Branch 0 taken 499 times.
✓ Branch 1 taken 73 times.
572 if (asf->multi_payloads_present) {
900 499 avio_wl16(pb, payload_len); // payload length
901 }
902 572 }
903
904 474 static void put_frame(AVFormatContext *s, ASFStream *stream, AVStream *avst,
905 int64_t timestamp, const uint8_t *buf,
906 int m_obj_size, int flags)
907 {
908 474 ASFContext *asf = s->priv_data;
909 int m_obj_offset, payload_len, frag_len1;
910
911 474 m_obj_offset = 0;
912
2/2
✓ Branch 0 taken 679 times.
✓ Branch 1 taken 474 times.
1153 while (m_obj_offset < m_obj_size) {
913 679 payload_len = m_obj_size - m_obj_offset;
914
2/2
✓ Branch 0 taken 208 times.
✓ Branch 1 taken 471 times.
679 if (asf->packet_timestamp_start == -1) {
915 208 const int multi_payload_constant = (asf->packet_size - MULTI_PAYLOAD_HEADERS);
916 208 asf->multi_payloads_present = (payload_len < multi_payload_constant);
917
918 208 asf->packet_size_left = asf->packet_size;
919
2/2
✓ Branch 0 taken 135 times.
✓ Branch 1 taken 73 times.
208 if (asf->multi_payloads_present) {
920 135 frag_len1 = multi_payload_constant - 1;
921 } else {
922 73 frag_len1 = asf->packet_size - SINGLE_PAYLOAD_HEADERS;
923 }
924 208 asf->packet_timestamp_start = timestamp;
925 } else {
926 // multi payloads
927 471 frag_len1 = asf->packet_size_left -
928 PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS -
929 PACKET_HEADER_MIN_SIZE - 1;
930
931
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 339 times.
471 if (frag_len1 < payload_len &&
932
2/2
✓ Branch 0 taken 107 times.
✓ Branch 1 taken 25 times.
132 avst->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
933 107 flush_packet(s);
934 107 continue;
935 }
936
1/2
✓ Branch 0 taken 364 times.
✗ Branch 1 not taken.
364 if (asf->packet_timestamp_start > INT64_MAX - UINT16_MAX ||
937
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 364 times.
364 timestamp > asf->packet_timestamp_start + UINT16_MAX) {
938 flush_packet(s);
939 continue;
940 }
941 }
942
1/2
✓ Branch 0 taken 572 times.
✗ Branch 1 not taken.
572 if (frag_len1 > 0) {
943
2/2
✓ Branch 0 taken 98 times.
✓ Branch 1 taken 474 times.
572 if (payload_len > frag_len1)
944 98 payload_len = frag_len1;
945
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 474 times.
474 else if (payload_len == (frag_len1 - 1))
946 payload_len = frag_len1 - 2; // additional byte need to put padding length
947
948 572 put_payload_header(s, stream, timestamp + PREROLL_TIME,
949 m_obj_size, m_obj_offset, payload_len, flags);
950 572 avio_write(&asf->pb.pub, buf, payload_len);
951
952
2/2
✓ Branch 0 taken 499 times.
✓ Branch 1 taken 73 times.
572 if (asf->multi_payloads_present)
953 499 asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS);
954 else
955 73 asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD);
956 572 asf->packet_timestamp_end = timestamp;
957
958 572 asf->packet_nb_payloads++;
959 } else {
960 payload_len = 0;
961 }
962 572 m_obj_offset += payload_len;
963 572 buf += payload_len;
964
965
2/2
✓ Branch 0 taken 73 times.
✓ Branch 1 taken 499 times.
572 if (!asf->multi_payloads_present)
966 73 flush_packet(s);
967
2/2
✓ Branch 0 taken 25 times.
✓ Branch 1 taken 474 times.
499 else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1))
968 25 flush_packet(s);
969
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 474 times.
474 else if (asf->packet_nb_payloads == ASF_PAYLOADS_PER_PACKET)
970 flush_packet(s);
971 }
972 474 stream->seq++;
973 474 }
974
975 4 static int update_index(AVFormatContext *s, int start_sec,
976 uint32_t packet_number, uint16_t packet_count,
977 uint64_t packet_offset)
978 {
979 4 ASFContext *asf = s->priv_data;
980
981
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 1 times.
4 if (start_sec > asf->next_start_sec) {
982
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 2 times.
3 if (!asf->next_start_sec) {
983 1 asf->next_packet_number = packet_number;
984 1 asf->next_packet_count = packet_count;
985 1 asf->next_packet_offset = packet_offset;
986 }
987
988
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.
3 if (start_sec > asf->nb_index_memory_alloc) {
989 int err;
990 asf->nb_index_memory_alloc = (start_sec + ASF_INDEX_BLOCK) & ~(ASF_INDEX_BLOCK - 1);
991 if ((err = av_reallocp_array(&asf->index_ptr,
992 asf->nb_index_memory_alloc,
993 sizeof(*asf->index_ptr))) < 0) {
994 asf->nb_index_memory_alloc = 0;
995 return err;
996 }
997 }
998
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 3 times.
9 for (int i = asf->next_start_sec; i < start_sec; i++) {
999 6 asf->index_ptr[i].packet_number = asf->next_packet_number;
1000 6 asf->index_ptr[i].packet_count = asf->next_packet_count;
1001 6 asf->index_ptr[i].send_time = asf->next_start_sec * INT64_C(10000000);
1002 6 asf->index_ptr[i].offset = asf->next_packet_offset;
1003
1004 }
1005 }
1006 4 asf->maximum_packet = FFMAX(asf->maximum_packet, packet_count);
1007 4 asf->next_packet_number = packet_number;
1008 4 asf->next_packet_count = packet_count;
1009 4 asf->next_packet_offset = packet_offset;
1010 4 asf->next_start_sec = start_sec;
1011
1012 4 return 0;
1013 }
1014
1015 474 static int asf_write_packet(AVFormatContext *s, AVPacket *pkt)
1016 {
1017 474 ASFContext *asf = s->priv_data;
1018 474 AVIOContext *pb = s->pb;
1019 ASFStream *stream;
1020 AVCodecParameters *par;
1021 uint32_t packet_number;
1022 int64_t pts;
1023 int start_sec;
1024 474 int flags = pkt->flags;
1025 int ret;
1026 474 uint64_t offset = avio_tell(pb);
1027
1028 474 par = s->streams[pkt->stream_index]->codecpar;
1029 474 stream = &asf->streams[pkt->stream_index];
1030
1031
2/2
✓ Branch 0 taken 449 times.
✓ Branch 1 taken 25 times.
474 if (par->codec_type == AVMEDIA_TYPE_AUDIO)
1032 449 flags &= ~AV_PKT_FLAG_KEY;
1033
1034
1/2
✓ Branch 0 taken 474 times.
✗ Branch 1 not taken.
474 pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts;
1035
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 474 times.
474 av_assert0(pts != AV_NOPTS_VALUE);
1036
1/2
✓ Branch 0 taken 474 times.
✗ Branch 1 not taken.
474 if ( pts < - PREROLL_TIME
1037
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 474 times.
474 || pts > (INT_MAX-3)/10000LL * ASF_INDEXED_INTERVAL - PREROLL_TIME) {
1038 av_log(s, AV_LOG_ERROR, "input pts %"PRId64" is invalid\n", pts);
1039 return AVERROR(EINVAL);
1040 }
1041 474 pts *= 10000;
1042 474 asf->duration = FFMAX(asf->duration, pts + pkt->duration * 10000);
1043
1044 474 packet_number = asf->nb_packets;
1045 474 put_frame(s, stream, s->streams[pkt->stream_index],
1046 474 pkt->dts, pkt->data, pkt->size, flags);
1047
1048 474 start_sec = (int)((PREROLL_TIME * 10000 + pts + ASF_INDEXED_INTERVAL - 1)
1049 474 / ASF_INDEXED_INTERVAL);
1050
1051 /* check index */
1052
3/4
✓ Branch 0 taken 474 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
✓ Branch 3 taken 471 times.
474 if ((!asf->is_streamed) && (flags & AV_PKT_FLAG_KEY)) {
1053 3 uint16_t packet_count = asf->nb_packets - packet_number;
1054 3 ret = update_index(s, start_sec, packet_number, packet_count, offset);
1055
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.
3 if (ret < 0)
1056 return ret;
1057 }
1058 474 asf->end_sec = start_sec;
1059
1060 474 return 0;
1061 }
1062
1063 1 static int asf_write_index(AVFormatContext *s, const ASFIndex *index,
1064 uint16_t max, uint32_t count)
1065 {
1066 1 AVIOContext *pb = s->pb;
1067
1068 1 ff_put_guid(pb, &ff_asf_simple_index_header);
1069 1 avio_wl64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2) * count);
1070 1 ff_put_guid(pb, &ff_asf_my_guid);
1071 1 avio_wl64(pb, ASF_INDEXED_INTERVAL);
1072 1 avio_wl32(pb, max);
1073 1 avio_wl32(pb, count);
1074
2/2
✓ Branch 0 taken 6 times.
✓ Branch 1 taken 1 times.
7 for (uint32_t i = 0; i < count; i++) {
1075 6 avio_wl32(pb, index[i].packet_number);
1076 6 avio_wl16(pb, index[i].packet_count);
1077 }
1078
1079 1 return 0;
1080 }
1081
1082 3 static int asf_write_trailer(AVFormatContext *s)
1083 {
1084 3 ASFContext *asf = s->priv_data;
1085 int64_t file_size, data_size;
1086 int ret;
1087
1088 /* flush the current packet */
1089
1/2
✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
3 if (asf->pb.pub.buf_ptr > asf->pb.pub.buffer)
1090 3 flush_packet(s);
1091
1092 /* write index */
1093 3 data_size = avio_tell(s->pb);
1094
3/4
✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
✓ Branch 3 taken 2 times.
3 if (!asf->is_streamed && asf->next_start_sec) {
1095
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
1 if ((ret = update_index(s, asf->end_sec + 1, 0, 0, 0)) < 0)
1096 return ret;
1097 1 asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->next_start_sec);
1098 }
1099
1100
2/4
✓ Branch 0 taken 3 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 3 times.
3 if (asf->is_streamed || !(s->pb->seekable & AVIO_SEEKABLE_NORMAL)) {
1101 put_chunk(s, 0x4524, 0, 0); /* end of stream */
1102 } else {
1103 /* rewrite an updated header */
1104 3 file_size = avio_tell(s->pb);
1105 3 avio_seek(s->pb, 0, SEEK_SET);
1106 3 asf_write_header1(s, file_size, data_size - asf->data_offset);
1107 }
1108
1109 3 return 0;
1110 }
1111
1112 3 static void asf_deinit(AVFormatContext *s)
1113 {
1114 3 ASFContext *const asf = s->priv_data;
1115
1116 3 av_freep(&asf->index_ptr);
1117 3 }
1118
1119 static const AVOption asf_options[] = {
1120 { "packet_size", "Packet size", offsetof(ASFContext, packet_size), AV_OPT_TYPE_INT, {.i64 = 3200}, PACKET_SIZE_MIN, PACKET_SIZE_MAX, AV_OPT_FLAG_ENCODING_PARAM },
1121 { NULL },
1122 };
1123
1124 static const AVClass asf_muxer_class = {
1125 .class_name = "ASF (stream) muxer",
1126 .item_name = av_default_item_name,
1127 .option = asf_options,
1128 .version = LIBAVUTIL_VERSION_INT,
1129 };
1130
1131 #if CONFIG_ASF_MUXER
1132 const AVOutputFormat ff_asf_muxer = {
1133 .name = "asf",
1134 .long_name = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
1135 .mime_type = "video/x-ms-asf",
1136 .extensions = "asf,wmv,wma",
1137 .priv_data_size = sizeof(ASFContext),
1138 .audio_codec = AV_CODEC_ID_WMAV2,
1139 .video_codec = AV_CODEC_ID_MSMPEG4V3,
1140 .write_header = asf_write_header,
1141 .write_packet = asf_write_packet,
1142 .write_trailer = asf_write_trailer,
1143 .flags = AVFMT_GLOBALHEADER,
1144 .codec_tag = asf_codec_tags,
1145 .priv_class = &asf_muxer_class,
1146 .deinit = asf_deinit,
1147 };
1148 #endif /* CONFIG_ASF_MUXER */
1149
1150 #if CONFIG_ASF_STREAM_MUXER
1151 const AVOutputFormat ff_asf_stream_muxer = {
1152 .name = "asf_stream",
1153 .long_name = NULL_IF_CONFIG_SMALL("ASF (Advanced / Active Streaming Format)"),
1154 .mime_type = "video/x-ms-asf",
1155 .extensions = "asf,wmv,wma",
1156 .priv_data_size = sizeof(ASFContext),
1157 .audio_codec = AV_CODEC_ID_WMAV2,
1158 .video_codec = AV_CODEC_ID_MSMPEG4V3,
1159 .write_header = asf_write_stream_header,
1160 .write_packet = asf_write_packet,
1161 .write_trailer = asf_write_trailer,
1162 .flags = AVFMT_GLOBALHEADER,
1163 .codec_tag = asf_codec_tags,
1164 .priv_class = &asf_muxer_class,
1165 .deinit = asf_deinit,
1166 };
1167 #endif /* CONFIG_ASF_STREAM_MUXER */
1168