mpeg ts demux uses DVB SI info and generates correct PTS info - added prototype mpeg...
[ffmpeg.git] / libavformat / mpegtsenc.c
1 /*
2  * MPEG2 transport stream (aka DVB) mux
3  * Copyright (c) 2003 Fabrice Bellard.
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  */
19 #include "avformat.h"
20
21 #include "mpegts.h"
22
23 /* write DVB SI sections */
24
25 static uint32_t crc_table[256] = {
26         0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
27         0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
28         0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
29         0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
30         0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
31         0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
32         0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
33         0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
34         0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
35         0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
36         0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
37         0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
38         0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
39         0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
40         0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
41         0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
42         0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
43         0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
44         0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
45         0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
46         0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
47         0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
48         0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
49         0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
50         0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
51         0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
52         0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
53         0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
54         0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
55         0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
56         0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
57         0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
58         0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
59         0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
60         0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
61         0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
62         0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
63         0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
64         0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
65         0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
66         0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
67         0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
68         0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
69 };
70
71 unsigned int mpegts_crc32(const uint8_t *data, int len)
72 {
73     register int i;
74     unsigned int crc = 0xffffffff;
75     
76     for (i=0; i<len; i++)
77         crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *data++) & 0xff];
78     
79     return crc;
80 }
81
82 /*********************************************/
83 /* mpegts section writer */
84
85 typedef struct MpegTSSection {
86     int pid;
87     int cc;
88     void (*write_packet)(struct MpegTSSection *s, const uint8_t *packet);
89     void *opaque;
90 } MpegTSSection;
91
92 /* NOTE: 4 bytes must be left at the end for the crc32 */
93 void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
94 {
95     unsigned int crc;
96     unsigned char packet[TS_PACKET_SIZE];
97     const unsigned char *buf_ptr;
98     unsigned char *q;
99     int first, b, len1, left;
100
101     crc = mpegts_crc32(buf, len - 4);
102     buf[len - 4] = (crc >> 24) & 0xff;
103     buf[len - 3] = (crc >> 16) & 0xff;
104     buf[len - 2] = (crc >> 8) & 0xff;
105     buf[len - 1] = (crc) & 0xff;
106     
107     /* send each packet */
108     buf_ptr = buf;
109     while (len > 0) {
110         first = (buf == buf_ptr);
111         q = packet;
112         *q++ = 0x47;
113         b = (s->pid >> 8);
114         if (first)
115             b |= 0x40;
116         *q++ = b;
117         *q++ = s->pid;
118         s->cc = (s->cc + 1) & 0xf;
119         *q++ = 0x10 | s->cc;
120         if (first)
121             *q++ = 0; /* 0 offset */
122         len1 = TS_PACKET_SIZE - (q - packet);
123         if (len1 > len) 
124             len1 = len;
125         memcpy(q, buf_ptr, len1);
126         q += len1;
127         /* add known padding data */
128         left = TS_PACKET_SIZE - (q - packet);
129         if (left > 0)
130             memset(q, 0xff, left);
131
132         s->write_packet(s, packet);
133
134         buf_ptr += len1;
135         len -= len1;
136     }
137 }
138
139 static inline void put16(uint8_t **q_ptr, int val)
140 {
141     uint8_t *q;
142     q = *q_ptr;
143     *q++ = val >> 8;
144     *q++ = val;
145     *q_ptr = q;
146 }
147
148 int mpegts_write_section1(MpegTSSection *s, int tid, int id, 
149                           int version, int sec_num, int last_sec_num,
150                           uint8_t *buf, int len)
151 {
152     uint8_t section[1024], *q;
153     unsigned int tot_len;
154     
155     tot_len = 3 + 5 + len + 4;
156     /* check if not too big */
157     if (tot_len > 1024)
158         return -1;
159
160     q = section;
161     *q++ = tid;
162     put16(&q, 0xb000 | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
163     put16(&q, id);
164     *q++ = 0xc1 | (version << 1); /* current_next_indicator = 1 */
165     *q++ = sec_num;
166     *q++ = last_sec_num;
167     memcpy(q, buf, len);
168     
169     mpegts_write_section(s, section, tot_len);
170     return 0;
171 }
172
173 /*********************************************/
174 /* mpegts writer */
175
176 #define DEFAULT_PMT_START_PID   0x1000
177 #define DEFAULT_START_PID       0x0100
178 #define DEFAULT_PROVIDER_NAME   "FFmpeg"
179 #define DEFAULT_SERVICE_NAME    "Service01"
180
181 /* default network id, transport stream and service identifiers */
182 #define DEFAULT_ONID            0x0001
183 #define DEFAULT_TSID            0x0001
184 #define DEFAULT_SID             0x0001
185
186 /* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
187 #define DEFAULT_PES_HEADER_FREQ 16
188
189 /* we retransmit the SI info at this rate */
190 #define SDT_RETRANS_TIME 500
191 #define PAT_RETRANS_TIME 100
192
193 typedef struct MpegTSWriteStream {
194     int pid; /* stream associated pid */
195     int cc;
196     int packet_index;
197     int pes_packet_count;
198     uint8_t packet[TS_PACKET_SIZE];
199 } MpegTSWriteStream;
200
201 typedef struct MpegTSService {
202     MpegTSSection pmt; /* MPEG2 pmt table context */
203     int pcr_pid;
204     int sid;           /* service ID */
205     char *name;
206     char *provider_name;
207 } MpegTSService;
208
209 typedef struct MpegTSWrite {
210     MpegTSSection pat; /* MPEG2 pat table */
211     MpegTSSection sdt; /* MPEG2 sdt table context */
212     MpegTSService **services;
213     int sdt_packet_count;
214     int sdt_packet_freq;
215     int pat_packet_count;
216     int pat_packet_freq;
217     int nb_services;
218     int onid;
219     int tsid;
220 } MpegTSWrite;
221
222 static void mpegts_write_pat(AVFormatContext *s)
223 {
224     MpegTSWrite *ts = s->priv_data;
225     MpegTSService *service;
226     uint8_t data[1012], *q;
227     int i;
228     
229     q = data;
230     for(i = 0; i < ts->nb_services; i++) {
231         service = ts->services[i];
232         put16(&q, service->sid);
233         put16(&q, 0xe000 | service->pmt.pid);
234     }
235     mpegts_write_section1(&ts->pat, PAT_TID, ts->tsid, 0, 0, 0,
236                           data, q - data);
237 }
238
239 static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
240 {
241     //    MpegTSWrite *ts = s->priv_data;
242     uint8_t data[1012], *q, *desc_length_ptr, *program_info_length_ptr;
243     int val, stream_type, i;
244
245     q = data;
246     put16(&q, 0xe000 | service->pcr_pid);
247
248     program_info_length_ptr = q;
249     q += 2; /* patched after */
250
251     /* put program info here */
252
253     val = 0xf000 | (q - program_info_length_ptr - 2);
254     program_info_length_ptr[0] = val >> 8;
255     program_info_length_ptr[1] = val;
256     
257     for(i = 0; i < s->nb_streams; i++) {
258         AVStream *st = s->streams[i];
259         MpegTSWriteStream *ts_st = st->priv_data;
260         switch(st->codec.codec_type) {
261         case CODEC_TYPE_VIDEO:
262             stream_type = STREAM_TYPE_VIDEO;
263             break;
264         case CODEC_TYPE_AUDIO:
265             stream_type = STREAM_TYPE_AUDIO;
266             break;
267         default:
268             stream_type = STREAM_TYPE_PRIVATE_DATA;
269             break;
270         }
271         *q++ = stream_type;
272         put16(&q, 0xe000 | ts_st->pid);
273         desc_length_ptr = q;
274         q += 2; /* patched after */
275
276         /* write optional descriptors here */
277
278         val = 0xf000 | (q - desc_length_ptr - 2);
279         desc_length_ptr[0] = val >> 8;
280         desc_length_ptr[1] = val;
281     }
282     mpegts_write_section1(&service->pmt, PMT_TID, service->sid, 0, 0, 0,
283                           data, q - data);
284 }   
285
286 /* NOTE: str == NULL is accepted for an empty string */
287 static void putstr8(uint8_t **q_ptr, const char *str)
288 {
289     uint8_t *q;
290     int len;
291
292     q = *q_ptr;
293     if (!str)
294         len = 0;
295     else
296         len = strlen(str);
297     *q++ = len;
298     memcpy(q, str, len);
299     q += len;
300     *q_ptr = q;
301 }
302
303 static void mpegts_write_sdt(AVFormatContext *s)
304 {
305     MpegTSWrite *ts = s->priv_data;
306     MpegTSService *service;
307     uint8_t data[1012], *q, *desc_list_len_ptr, *desc_len_ptr;
308     int i, running_status, free_ca_mode, val;
309     
310     q = data;
311     put16(&q, ts->onid);
312     *q++ = 0xff;
313     for(i = 0; i < ts->nb_services; i++) {
314         service = ts->services[i];
315         put16(&q, service->sid);
316         *q++ = 0xfc | 0x00; /* currently no EIT info */
317         desc_list_len_ptr = q;
318         q += 2;
319         running_status = 4; /* running */
320         free_ca_mode = 0;
321
322         /* write only one descriptor for the service name and provider */
323         *q++ = 0x48;
324         desc_len_ptr = q;
325         q++;
326         *q++ = 0x01; /* digital television service */
327         putstr8(&q, service->provider_name);
328         putstr8(&q, service->name);
329         desc_len_ptr[0] = q - desc_len_ptr - 1;
330
331         /* fill descriptor length */
332         val = (running_status << 13) | (free_ca_mode << 12) | 
333             (q - desc_list_len_ptr - 2);
334         desc_list_len_ptr[0] = val >> 8;
335         desc_list_len_ptr[1] = val;
336     }
337     mpegts_write_section1(&ts->sdt, SDT_TID, ts->tsid, 0, 0, 0,
338                           data, q - data);
339 }
340
341 static MpegTSService *mpegts_add_service(MpegTSWrite *ts, 
342                                          int sid, 
343                                          const char *provider_name, 
344                                          const char *name)
345 {
346     MpegTSService *service;
347
348     service = av_mallocz(sizeof(MpegTSService));
349     if (!service)
350         return NULL;
351     service->pmt.pid = DEFAULT_PMT_START_PID + ts->nb_services - 1;
352     service->sid = sid;
353     service->provider_name = av_strdup(provider_name);
354     service->name = av_strdup(name);
355     service->pcr_pid = 0x1fff;
356     dynarray_add(&ts->services, &ts->nb_services, service);
357     return service;
358 }
359
360 static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
361 {
362     AVFormatContext *ctx = s->opaque;
363     put_buffer(&ctx->pb, packet, TS_PACKET_SIZE);
364 }
365
366 static int mpegts_write_header(AVFormatContext *s)
367 {
368     MpegTSWrite *ts = s->priv_data;
369     MpegTSWriteStream *ts_st;
370     MpegTSService *service;
371     AVStream *st;
372     int i, total_bit_rate;
373
374     ts->tsid = DEFAULT_TSID;
375     ts->onid = DEFAULT_ONID;
376     /* allocate a single DVB service */
377     service = mpegts_add_service(ts, DEFAULT_SID, 
378                                  DEFAULT_PROVIDER_NAME, DEFAULT_SERVICE_NAME);
379     service->pmt.write_packet = section_write_packet;
380     service->pmt.opaque = s;
381
382     ts->pat.pid = PAT_PID;
383     ts->pat.cc = 0;
384     ts->pat.write_packet = section_write_packet;
385     ts->pat.opaque = s;
386
387     ts->sdt.pid = SDT_PID;
388     ts->sdt.cc = 0;
389     ts->sdt.write_packet = section_write_packet;
390     ts->sdt.opaque = s;
391
392     /* assign pids to each stream */
393     total_bit_rate = 0;
394     for(i = 0;i < s->nb_streams; i++) {
395         st = s->streams[i];
396         ts_st = av_mallocz(sizeof(MpegTSWriteStream));
397         if (!ts_st)
398             goto fail;
399         st->priv_data = ts_st;
400         ts_st->pid = DEFAULT_START_PID + i;
401         /* update PCR pid if needed */
402         if (st->codec.codec_type == CODEC_TYPE_VIDEO && 
403             service->pcr_pid == 0x1fff)
404             service->pcr_pid = ts_st->pid;
405         total_bit_rate += st->codec.bit_rate;
406     }
407     if (total_bit_rate <= 8 * 1024)
408         total_bit_rate = 8 * 1024;
409     ts->sdt_packet_freq = (total_bit_rate * SDT_RETRANS_TIME) / 
410         (TS_PACKET_SIZE * 8 * 1000);
411     ts->pat_packet_freq = (total_bit_rate * PAT_RETRANS_TIME) / 
412         (TS_PACKET_SIZE * 8 * 1000);
413 #if 0
414     printf("%d %d %d\n", 
415            total_bit_rate, ts->sdt_packet_freq, ts->pat_packet_freq);
416 #endif
417
418     /* write info at the start of the file, so that it will be fast to
419        find them */
420     mpegts_write_sdt(s);
421     mpegts_write_pat(s);
422     for(i = 0; i < ts->nb_services; i++) {
423         mpegts_write_pmt(s, ts->services[i]);
424     }
425     put_flush_packet(&s->pb);
426
427     return 0;
428
429  fail:
430     for(i = 0;i < s->nb_streams; i++) {
431         st = s->streams[i];
432         av_free(st->priv_data);
433     }
434     return -1;
435 }
436
437 /* send SDT, PAT and PMT tables regulary */
438 static void retransmit_si_info(AVFormatContext *s)
439 {
440     MpegTSWrite *ts = s->priv_data;
441     int i;
442
443     if (++ts->sdt_packet_count == ts->sdt_packet_freq) {
444         ts->sdt_packet_count = 0;
445         mpegts_write_sdt(s);
446     }
447     if (++ts->pat_packet_count == ts->pat_packet_freq) {
448         ts->pat_packet_count = 0;
449         mpegts_write_pat(s);
450         for(i = 0; i < ts->nb_services; i++) {
451             mpegts_write_pmt(s, ts->services[i]);
452         }
453     }
454 }
455
456 static int mpegts_write_packet(AVFormatContext *s, int stream_index,
457                                uint8_t *buf, int size, int pts1)
458 {
459     AVStream *st = s->streams[stream_index];
460     MpegTSWriteStream *ts_st = st->priv_data;
461     uint8_t *q;
462     int val, write_pts, is_start, len;
463     int64_t pts;
464
465     while (size > 0) {
466         if (ts_st->packet_index == 0) {
467             retransmit_si_info(s);
468
469             /* new PES header ? */
470             is_start = 0;
471             if (++ts_st->pes_packet_count == DEFAULT_PES_HEADER_FREQ) {
472                 ts_st->pes_packet_count = 0;
473                 is_start = 1;
474             }
475             /* prepare packet header */
476             q = ts_st->packet;
477             *q++ = 0x47;
478             val = (ts_st->pid >> 8);
479             if (is_start)
480                 val |= 0x40;
481             *q++ = val;
482             *q++ = ts_st->pid;
483             *q++ = 0x10 | ts_st->cc;
484             ts_st->cc = (ts_st->cc + 1) & 0xf;
485             if (is_start) {
486                 /* write PES header */
487                 *q++ = 0x00;
488                 *q++ = 0x00;
489                 *q++ = 0x01;
490                 if (st->codec.codec_type == CODEC_TYPE_VIDEO)
491                     *q++ = 0xe0;
492                 else
493                     *q++ = 0xc0;
494                 *q++ = 0; /* unbounded size */
495                 *q++ = 0;
496                 *q++ = 0x80;
497                 write_pts = 0; /* XXX: enable it */
498                 if (write_pts) {
499                     *q++ = 0x80; /* PTS only */
500                     *q++ = 0x05; /* header len */
501                     pts = pts1;
502                     val = (0x02 << 4) | 
503                         (((pts >> 30) & 0x07) << 1) | 1;
504                     *q++ = val;
505                     val = (((pts >> 15) & 0x7fff) << 1) | 1;
506                     *q++ = val >> 8;
507                     *q++ = val;
508                     val = (((pts) & 0x7fff) << 1) | 1;
509                     *q++ = val >> 8;
510                     *q++ = val;
511                 } else {
512                     *q++ = 0x00;
513                     *q++ = 0x00;
514                 }
515             }
516             ts_st->packet_index = q - ts_st->packet;
517         }
518         len = TS_PACKET_SIZE - ts_st->packet_index;
519         if (len == 0) {
520             put_buffer(&s->pb, ts_st->packet, TS_PACKET_SIZE);
521             ts_st->packet_index = 0;
522         } else {
523             if (len > size)
524                 len = size;
525             memcpy(ts_st->packet + ts_st->packet_index, buf, len);
526             size -= len;
527             buf += len;
528             ts_st->packet_index += len;
529         }
530     }
531     put_flush_packet(&s->pb);
532     return 0;
533 }
534
535 static int mpegts_write_end(AVFormatContext *s)
536 {
537     MpegTSWrite *ts = s->priv_data;
538     MpegTSWriteStream *ts_st;
539     MpegTSService *service;
540     AVStream *st;
541     int i;
542
543     /* flush current packets */
544     for(i = 0; i < s->nb_streams; i++) {
545         st = s->streams[i];
546         ts_st = st->priv_data;
547         if (ts_st->packet_index != 0) {
548             /* put a known value at the end */
549             memset(ts_st->packet + ts_st->packet_index, 0xff,
550                    TS_PACKET_SIZE - ts_st->packet_index);
551             put_buffer(&s->pb, ts_st->packet, TS_PACKET_SIZE);
552         }
553     }
554     put_flush_packet(&s->pb);
555         
556     for(i = 0; i < ts->nb_services; i++) {
557         service = ts->services[i];
558         av_freep(&service->provider_name);
559         av_freep(&service->name);
560         av_free(service);
561     }
562     av_free(ts->services);
563
564     for(i = 0; i < s->nb_streams; i++) {
565         st = s->streams[i];
566         av_free(st->priv_data);
567     }
568     return 0;
569 }
570
571 AVOutputFormat mpegts_mux = {
572     "mpegts",
573     "MPEG2 transport stream format",
574     "video/x-mpegts",
575     "ts",
576     sizeof(MpegTSWrite),
577     CODEC_ID_MP2,
578     CODEC_ID_MPEG1VIDEO,
579     mpegts_write_header,
580     mpegts_write_packet,
581     mpegts_write_end,
582 };