mpeg ts demux uses DVB SI info and generates correct PTS info - added prototype mpeg ts mux

Originally committed as revision 1956 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 582 insertions, 0 deletions

diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
new file mode 100644
index 0000000000..079f4c724c
--- /dev/null
+++ b/libavformat/mpegtsenc.c
@@ -0,0 +1,582 @@
+/*
+ * MPEG2 transport stream (aka DVB) mux
+ * Copyright (c) 2003 Fabrice Bellard.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include "avformat.h"
+
+#include "mpegts.h"
+
+/* write DVB SI sections */
+
+static uint32_t crc_table[256] = {
+	0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
+	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
+	0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
+	0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
+	0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
+	0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
+	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
+	0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
+	0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
+	0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
+	0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
+	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
+	0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
+	0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
+	0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
+	0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
+	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
+	0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
+	0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
+	0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
+	0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
+	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
+	0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
+	0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
+	0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
+	0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
+	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
+	0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
+	0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
+	0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
+	0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
+	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
+	0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
+	0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
+	0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
+	0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
+	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
+	0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
+	0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
+	0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
+	0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
+	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
+	0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
+};
+
+unsigned int mpegts_crc32(const uint8_t *data, int len)
+{
+    register int i;
+    unsigned int crc = 0xffffffff;
+    
+    for (i=0; i<len; i++)
+        crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *data++) & 0xff];
+    
+    return crc;
+}
+
+/*********************************************/
+/* mpegts section writer */
+
+typedef struct MpegTSSection {
+    int pid;
+    int cc;
+    void (*write_packet)(struct MpegTSSection *s, const uint8_t *packet);
+    void *opaque;
+} MpegTSSection;
+
+/* NOTE: 4 bytes must be left at the end for the crc32 */
+void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
+{
+    unsigned int crc;
+    unsigned char packet[TS_PACKET_SIZE];
+    const unsigned char *buf_ptr;
+    unsigned char *q;
+    int first, b, len1, left;
+
+    crc = mpegts_crc32(buf, len - 4);
+    buf[len - 4] = (crc >> 24) & 0xff;
+    buf[len - 3] = (crc >> 16) & 0xff;
+    buf[len - 2] = (crc >> 8) & 0xff;
+    buf[len - 1] = (crc) & 0xff;
+    
+    /* send each packet */
+    buf_ptr = buf;
+    while (len > 0) {
+        first = (buf == buf_ptr);
+        q = packet;
+        *q++ = 0x47;
+        b = (s->pid >> 8);
+        if (first)
+            b |= 0x40;
+        *q++ = b;
+        *q++ = s->pid;
+        s->cc = (s->cc + 1) & 0xf;
+        *q++ = 0x10 | s->cc;
+        if (first)
+            *q++ = 0; /* 0 offset */
+        len1 = TS_PACKET_SIZE - (q - packet);
+        if (len1 > len) 
+            len1 = len;
+        memcpy(q, buf_ptr, len1);
+        q += len1;
+        /* add known padding data */
+        left = TS_PACKET_SIZE - (q - packet);
+        if (left > 0)
+            memset(q, 0xff, left);
+
+        s->write_packet(s, packet);
+
+        buf_ptr += len1;
+        len -= len1;
+    }
+}
+
+static inline void put16(uint8_t **q_ptr, int val)
+{
+    uint8_t *q;
+    q = *q_ptr;
+    *q++ = val >> 8;
+    *q++ = val;
+    *q_ptr = q;
+}
+
+int mpegts_write_section1(MpegTSSection *s, int tid, int id, 
+                          int version, int sec_num, int last_sec_num,
+                          uint8_t *buf, int len)
+{
+    uint8_t section[1024], *q;
+    unsigned int tot_len;
+    
+    tot_len = 3 + 5 + len + 4;
+    /* check if not too big */
+    if (tot_len > 1024)
+        return -1;
+
+    q = section;
+    *q++ = tid;
+    put16(&q, 0xb000 | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
+    put16(&q, id);
+    *q++ = 0xc1 | (version << 1); /* current_next_indicator = 1 */
+    *q++ = sec_num;
+    *q++ = last_sec_num;
+    memcpy(q, buf, len);
+    
+    mpegts_write_section(s, section, tot_len);
+    return 0;
+}
+
+/*********************************************/
+/* mpegts writer */
+
+#define DEFAULT_PMT_START_PID   0x1000
+#define DEFAULT_START_PID       0x0100
+#define DEFAULT_PROVIDER_NAME   "FFmpeg"
+#define DEFAULT_SERVICE_NAME    "Service01"
+
+/* default network id, transport stream and service identifiers */
+#define DEFAULT_ONID            0x0001
+#define DEFAULT_TSID            0x0001
+#define DEFAULT_SID             0x0001
+
+/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
+#define DEFAULT_PES_HEADER_FREQ 16
+
+/* we retransmit the SI info at this rate */
+#define SDT_RETRANS_TIME 500
+#define PAT_RETRANS_TIME 100
+
+typedef struct MpegTSWriteStream {
+    int pid; /* stream associated pid */
+    int cc;
+    int packet_index;
+    int pes_packet_count;
+    uint8_t packet[TS_PACKET_SIZE];
+} MpegTSWriteStream;
+
+typedef struct MpegTSService {
+    MpegTSSection pmt; /* MPEG2 pmt table context */
+    int pcr_pid;
+    int sid;           /* service ID */
+    char *name;
+    char *provider_name;
+} MpegTSService;
+
+typedef struct MpegTSWrite {
+    MpegTSSection pat; /* MPEG2 pat table */
+    MpegTSSection sdt; /* MPEG2 sdt table context */
+    MpegTSService **services;
+    int sdt_packet_count;
+    int sdt_packet_freq;
+    int pat_packet_count;
+    int pat_packet_freq;
+    int nb_services;
+    int onid;
+    int tsid;
+} MpegTSWrite;
+
+static void mpegts_write_pat(AVFormatContext *s)
+{
+    MpegTSWrite *ts = s->priv_data;
+    MpegTSService *service;
+    uint8_t data[1012], *q;
+    int i;
+    
+    q = data;
+    for(i = 0; i < ts->nb_services; i++) {
+        service = ts->services[i];
+        put16(&q, service->sid);
+        put16(&q, 0xe000 | service->pmt.pid);
+    }
+    mpegts_write_section1(&ts->pat, PAT_TID, ts->tsid, 0, 0, 0,
+                          data, q - data);
+}
+
+static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
+{
+    //    MpegTSWrite *ts = s->priv_data;
+    uint8_t data[1012], *q, *desc_length_ptr, *program_info_length_ptr;
+    int val, stream_type, i;
+
+    q = data;
+    put16(&q, 0xe000 | service->pcr_pid);
+
+    program_info_length_ptr = q;
+    q += 2; /* patched after */
+
+    /* put program info here */
+
+    val = 0xf000 | (q - program_info_length_ptr - 2);
+    program_info_length_ptr[0] = val >> 8;
+    program_info_length_ptr[1] = val;
+    
+    for(i = 0; i < s->nb_streams; i++) {
+        AVStream *st = s->streams[i];
+        MpegTSWriteStream *ts_st = st->priv_data;
+        switch(st->codec.codec_type) {
+        case CODEC_TYPE_VIDEO:
+            stream_type = STREAM_TYPE_VIDEO;
+            break;
+        case CODEC_TYPE_AUDIO:
+            stream_type = STREAM_TYPE_AUDIO;
+            break;
+        default:
+            stream_type = STREAM_TYPE_PRIVATE_DATA;
+            break;
+        }
+        *q++ = stream_type;
+        put16(&q, 0xe000 | ts_st->pid);
+        desc_length_ptr = q;
+        q += 2; /* patched after */
+
+        /* write optional descriptors here */
+
+        val = 0xf000 | (q - desc_length_ptr - 2);
+        desc_length_ptr[0] = val >> 8;
+        desc_length_ptr[1] = val;
+    }
+    mpegts_write_section1(&service->pmt, PMT_TID, service->sid, 0, 0, 0,
+                          data, q - data);
+}   
+
+/* NOTE: str == NULL is accepted for an empty string */
+static void putstr8(uint8_t **q_ptr, const char *str)
+{
+    uint8_t *q;
+    int len;
+
+    q = *q_ptr;
+    if (!str)
+        len = 0;
+    else
+        len = strlen(str);
+    *q++ = len;
+    memcpy(q, str, len);
+    q += len;
+    *q_ptr = q;
+}
+
+static void mpegts_write_sdt(AVFormatContext *s)
+{
+    MpegTSWrite *ts = s->priv_data;
+    MpegTSService *service;
+    uint8_t data[1012], *q, *desc_list_len_ptr, *desc_len_ptr;
+    int i, running_status, free_ca_mode, val;
+    
+    q = data;
+    put16(&q, ts->onid);
+    *q++ = 0xff;
+    for(i = 0; i < ts->nb_services; i++) {
+        service = ts->services[i];
+        put16(&q, service->sid);
+        *q++ = 0xfc | 0x00; /* currently no EIT info */
+        desc_list_len_ptr = q;
+        q += 2;
+        running_status = 4; /* running */
+        free_ca_mode = 0;
+
+        /* write only one descriptor for the service name and provider */
+        *q++ = 0x48;
+        desc_len_ptr = q;
+        q++;
+        *q++ = 0x01; /* digital television service */
+        putstr8(&q, service->provider_name);
+        putstr8(&q, service->name);
+        desc_len_ptr[0] = q - desc_len_ptr - 1;
+
+        /* fill descriptor length */
+        val = (running_status << 13) | (free_ca_mode << 12) | 
+            (q - desc_list_len_ptr - 2);
+        desc_list_len_ptr[0] = val >> 8;
+        desc_list_len_ptr[1] = val;
+    }
+    mpegts_write_section1(&ts->sdt, SDT_TID, ts->tsid, 0, 0, 0,
+                          data, q - data);
+}
+
+static MpegTSService *mpegts_add_service(MpegTSWrite *ts, 
+                                         int sid, 
+                                         const char *provider_name, 
+                                         const char *name)
+{
+    MpegTSService *service;
+
+    service = av_mallocz(sizeof(MpegTSService));
+    if (!service)
+        return NULL;
+    service->pmt.pid = DEFAULT_PMT_START_PID + ts->nb_services - 1;
+    service->sid = sid;
+    service->provider_name = av_strdup(provider_name);
+    service->name = av_strdup(name);
+    service->pcr_pid = 0x1fff;
+    dynarray_add(&ts->services, &ts->nb_services, service);
+    return service;
+}
+
+static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
+{
+    AVFormatContext *ctx = s->opaque;
+    put_buffer(&ctx->pb, packet, TS_PACKET_SIZE);
+}
+
+static int mpegts_write_header(AVFormatContext *s)
+{
+    MpegTSWrite *ts = s->priv_data;
+    MpegTSWriteStream *ts_st;
+    MpegTSService *service;
+    AVStream *st;
+    int i, total_bit_rate;
+
+    ts->tsid = DEFAULT_TSID;
+    ts->onid = DEFAULT_ONID;
+    /* allocate a single DVB service */
+    service = mpegts_add_service(ts, DEFAULT_SID, 
+                                 DEFAULT_PROVIDER_NAME, DEFAULT_SERVICE_NAME);
+    service->pmt.write_packet = section_write_packet;
+    service->pmt.opaque = s;
+
+    ts->pat.pid = PAT_PID;
+    ts->pat.cc = 0;
+    ts->pat.write_packet = section_write_packet;
+    ts->pat.opaque = s;
+
+    ts->sdt.pid = SDT_PID;
+    ts->sdt.cc = 0;
+    ts->sdt.write_packet = section_write_packet;
+    ts->sdt.opaque = s;
+
+    /* assign pids to each stream */
+    total_bit_rate = 0;
+    for(i = 0;i < s->nb_streams; i++) {
+        st = s->streams[i];
+        ts_st = av_mallocz(sizeof(MpegTSWriteStream));
+        if (!ts_st)
+            goto fail;
+        st->priv_data = ts_st;
+        ts_st->pid = DEFAULT_START_PID + i;
+        /* update PCR pid if needed */
+        if (st->codec.codec_type == CODEC_TYPE_VIDEO && 
+            service->pcr_pid == 0x1fff)
+            service->pcr_pid = ts_st->pid;
+        total_bit_rate += st->codec.bit_rate;
+    }
+    if (total_bit_rate <= 8 * 1024)
+        total_bit_rate = 8 * 1024;
+    ts->sdt_packet_freq = (total_bit_rate * SDT_RETRANS_TIME) / 
+        (TS_PACKET_SIZE * 8 * 1000);
+    ts->pat_packet_freq = (total_bit_rate * PAT_RETRANS_TIME) / 
+        (TS_PACKET_SIZE * 8 * 1000);
+#if 0
+    printf("%d %d %d\n", 
+           total_bit_rate, ts->sdt_packet_freq, ts->pat_packet_freq);
+#endif
+
+    /* write info at the start of the file, so that it will be fast to
+       find them */
+    mpegts_write_sdt(s);
+    mpegts_write_pat(s);
+    for(i = 0; i < ts->nb_services; i++) {
+        mpegts_write_pmt(s, ts->services[i]);
+    }
+    put_flush_packet(&s->pb);
+
+    return 0;
+
+ fail:
+    for(i = 0;i < s->nb_streams; i++) {
+        st = s->streams[i];
+        av_free(st->priv_data);
+    }
+    return -1;
+}
+
+/* send SDT, PAT and PMT tables regulary */
+static void retransmit_si_info(AVFormatContext *s)
+{
+    MpegTSWrite *ts = s->priv_data;
+    int i;
+
+    if (++ts->sdt_packet_count == ts->sdt_packet_freq) {
+        ts->sdt_packet_count = 0;
+        mpegts_write_sdt(s);
+    }
+    if (++ts->pat_packet_count == ts->pat_packet_freq) {
+        ts->pat_packet_count = 0;
+        mpegts_write_pat(s);
+        for(i = 0; i < ts->nb_services; i++) {
+            mpegts_write_pmt(s, ts->services[i]);
+        }
+    }
+}
+
+static int mpegts_write_packet(AVFormatContext *s, int stream_index,
+                               uint8_t *buf, int size, int pts1)
+{
+    AVStream *st = s->streams[stream_index];
+    MpegTSWriteStream *ts_st = st->priv_data;
+    uint8_t *q;
+    int val, write_pts, is_start, len;
+    int64_t pts;
+
+    while (size > 0) {
+        if (ts_st->packet_index == 0) {
+            retransmit_si_info(s);
+
+            /* new PES header ? */
+            is_start = 0;
+            if (++ts_st->pes_packet_count == DEFAULT_PES_HEADER_FREQ) {
+                ts_st->pes_packet_count = 0;
+                is_start = 1;
+            }
+            /* prepare packet header */
+            q = ts_st->packet;
+            *q++ = 0x47;
+            val = (ts_st->pid >> 8);
+            if (is_start)
+                val |= 0x40;
+            *q++ = val;
+            *q++ = ts_st->pid;
+            *q++ = 0x10 | ts_st->cc;
+            ts_st->cc = (ts_st->cc + 1) & 0xf;
+            if (is_start) {
+                /* write PES header */
+                *q++ = 0x00;
+                *q++ = 0x00;
+                *q++ = 0x01;
+                if (st->codec.codec_type == CODEC_TYPE_VIDEO)
+                    *q++ = 0xe0;
+                else
+                    *q++ = 0xc0;
+                *q++ = 0; /* unbounded size */
+                *q++ = 0;
+                *q++ = 0x80;
+                write_pts = 0; /* XXX: enable it */
+                if (write_pts) {
+                    *q++ = 0x80; /* PTS only */
+                    *q++ = 0x05; /* header len */
+                    pts = pts1;
+                    val = (0x02 << 4) | 
+                        (((pts >> 30) & 0x07) << 1) | 1;
+                    *q++ = val;
+                    val = (((pts >> 15) & 0x7fff) << 1) | 1;
+                    *q++ = val >> 8;
+                    *q++ = val;
+                    val = (((pts) & 0x7fff) << 1) | 1;
+                    *q++ = val >> 8;
+                    *q++ = val;
+                } else {
+                    *q++ = 0x00;
+                    *q++ = 0x00;
+                }
+            }
+            ts_st->packet_index = q - ts_st->packet;
+        }
+        len = TS_PACKET_SIZE - ts_st->packet_index;
+        if (len == 0) {
+            put_buffer(&s->pb, ts_st->packet, TS_PACKET_SIZE);
+            ts_st->packet_index = 0;
+        } else {
+            if (len > size)
+                len = size;
+            memcpy(ts_st->packet + ts_st->packet_index, buf, len);
+            size -= len;
+            buf += len;
+            ts_st->packet_index += len;
+        }
+    }
+    put_flush_packet(&s->pb);
+    return 0;
+}
+
+static int mpegts_write_end(AVFormatContext *s)
+{
+    MpegTSWrite *ts = s->priv_data;
+    MpegTSWriteStream *ts_st;
+    MpegTSService *service;
+    AVStream *st;
+    int i;
+
+    /* flush current packets */
+    for(i = 0; i < s->nb_streams; i++) {
+        st = s->streams[i];
+        ts_st = st->priv_data;
+        if (ts_st->packet_index != 0) {
+            /* put a known value at the end */
+            memset(ts_st->packet + ts_st->packet_index, 0xff,
+                   TS_PACKET_SIZE - ts_st->packet_index);
+            put_buffer(&s->pb, ts_st->packet, TS_PACKET_SIZE);
+        }
+    }
+    put_flush_packet(&s->pb);
+        
+    for(i = 0; i < ts->nb_services; i++) {
+        service = ts->services[i];
+        av_freep(&service->provider_name);
+        av_freep(&service->name);
+        av_free(service);
+    }
+    av_free(ts->services);
+
+    for(i = 0; i < s->nb_streams; i++) {
+        st = s->streams[i];
+        av_free(st->priv_data);
+    }
+    return 0;
+}
+
+AVOutputFormat mpegts_mux = {
+    "mpegts",
+    "MPEG2 transport stream format",
+    "video/x-mpegts",
+    "ts",
+    sizeof(MpegTSWrite),
+    CODEC_ID_MP2,
+    CODEC_ID_MPEG1VIDEO,
+    mpegts_write_header,
+    mpegts_write_packet,
+    mpegts_write_end,
+};