/*
- * MPEG2 transport stream (aka DVB) demux
+ * MPEG2 transport stream (aka DVB) demuxer
* Copyright (c) 2002-2003 Fabrice Bellard.
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-
+#include "crc.h"
#include "mpegts.h"
+#include "allformats.h"
//#define DEBUG_SI
+//#define DEBUG_SEEK
/* 1.0 second at 24Mbit/s */
-#define MAX_SCAN_PACKETS 16000
+#define MAX_SCAN_PACKETS 32000
+
+/* maximum size in which we look for synchronisation if
+ synchronisation is lost */
+#define MAX_RESYNC_SIZE 4096
-static int add_pes_stream(AVFormatContext *s, int pid);
+typedef struct PESContext PESContext;
+
+static PESContext* add_pes_stream(MpegTSContext *ts, int pid, int pcr_pid, int stream_type);
+static AVStream* new_pes_av_stream(PESContext *pes, uint32_t code);
enum MpegTSFilterType {
MPEGTS_PES,
MPEGTS_SECTION,
};
-/* XXX: suppress 'pkt' parameter */
-typedef void PESCallback(void *opaque, const uint8_t *buf, int len, int is_start);
+typedef struct MpegTSFilter MpegTSFilter;
+
+typedef void PESCallback(MpegTSFilter *f, const uint8_t *buf, int len, int is_start);
typedef struct MpegTSPESFilter {
PESCallback *pes_cb;
void *opaque;
} MpegTSPESFilter;
-typedef void SectionCallback(void *opaque, const uint8_t *buf, int len);
+typedef void SectionCallback(MpegTSFilter *f, const uint8_t *buf, int len);
typedef void SetServiceCallback(void *opaque, int ret);
void *opaque;
} MpegTSSectionFilter;
-typedef struct MpegTSFilter {
+struct MpegTSFilter {
int pid;
int last_cc; /* last cc code (-1 if first packet) */
enum MpegTSFilterType type;
MpegTSPESFilter pes_filter;
MpegTSSectionFilter section_filter;
} u;
-} MpegTSFilter;
+};
typedef struct MpegTSService {
int running:1;
- int sid;
- char *provider_name;
- char *name;
+ int sid; /**< MPEG Program Number of stream */
+ char *provider_name; /**< DVB Network name, "" if not DVB stream */
+ char *name; /**< DVB Service name, "MPEG Program [sid]" if not DVB stream*/
} MpegTSService;
-typedef struct MpegTSContext {
+struct MpegTSContext {
/* user data */
AVFormatContext *stream;
- int raw_packet_size; /* raw packet size, including FEC if present */
- int auto_guess; /* if true, all pids are analized to find streams */
- int set_service_ret;
+ /** raw packet size, including FEC if present */
+ int raw_packet_size;
+ /** if true, all pids are analyzed to find streams */
+ int auto_guess;
+
+ /** compute exact PCR for each transport stream packet */
+ int mpeg2ts_compute_pcr;
+
+ int64_t cur_pcr; /**< used to estimate the exact PCR */
+ int pcr_incr; /**< used to estimate the exact PCR */
/* data needed to handle file based ts */
- int stop_parse; /* stop parsing loop */
- AVPacket *pkt; /* packet containing av data */
+ /** stop parsing loop */
+ int stop_parse;
+ /** packet containing Audio/Video data */
+ AVPacket *pkt;
/******************************************/
/* private mpegts data */
/* scan context */
- MpegTSFilter *sdt_filter;
+ /** number of PMTs in the last PAT seen */
int nb_services;
+ /** list of PMTs in the last PAT seen */
MpegTSService **services;
-
- /* set service context (XXX: allocated it ?) */
- SetServiceCallback *set_service_cb;
- void *set_service_opaque;
- MpegTSFilter *pat_filter;
- MpegTSFilter *pmt_filter;
- int req_sid;
+
+ /** filters for various streams specified by PMT + for the PAT and PMT */
MpegTSFilter *pids[NB_PID_MAX];
-} MpegTSContext;
+};
+
+/* TS stream handling */
+
+enum MpegTSState {
+ MPEGTS_HEADER = 0,
+ MPEGTS_PESHEADER_FILL,
+ MPEGTS_PAYLOAD,
+ MPEGTS_SKIP,
+};
+/* enough for PES header + length */
+#define PES_START_SIZE 9
+#define MAX_PES_HEADER_SIZE (9 + 255)
+
+struct PESContext {
+ int pid;
+ int pcr_pid; /**< if -1 then all packets containing PCR are considered */
+ int stream_type;
+ MpegTSContext *ts;
+ AVFormatContext *stream;
+ AVStream *st;
+ enum MpegTSState state;
+ /* used to get the format */
+ int data_index;
+ int total_size;
+ int pes_header_size;
+ int64_t pts, dts;
+ uint8_t header[MAX_PES_HEADER_SIZE];
+};
+
+/**
+ * Assembles PES packets out of TS packets, and then calls the "section_cb"
+ * function when they are complete.
+ */
static void write_section_data(AVFormatContext *s, MpegTSFilter *tss1,
const uint8_t *buf, int buf_size, int is_start)
{
MpegTSSectionFilter *tss = &tss1->u.section_filter;
int len;
- unsigned int crc;
-
+
if (is_start) {
memcpy(tss->section_buf, buf, buf_size);
tss->section_index = buf_size;
/* compute section length if possible */
if (tss->section_h_size == -1 && tss->section_index >= 3) {
- len = (((tss->section_buf[1] & 0xf) << 8) | tss->section_buf[2]) + 3;
+ len = (AV_RB16(tss->section_buf + 1) & 0xfff) + 3;
if (len > 4096)
return;
tss->section_h_size = len;
}
if (tss->section_h_size != -1 && tss->section_index >= tss->section_h_size) {
- if (tss->check_crc) {
- crc = mpegts_crc32(tss->section_buf, tss->section_h_size);
- if (crc != 0)
- goto invalid_crc;
- }
- tss->section_cb(tss->opaque, tss->section_buf, tss->section_h_size);
- invalid_crc:
tss->end_of_section_reached = 1;
+ if (!tss->check_crc ||
+ av_crc(av_crc04C11DB7, -1, tss->section_buf, tss->section_h_size) == 0)
+ tss->section_cb(tss1, tss->section_buf, tss->section_h_size);
}
}
-MpegTSFilter *mpegts_open_section_filter(MpegTSContext *ts, unsigned int pid,
+static MpegTSFilter *mpegts_open_section_filter(MpegTSContext *ts, unsigned int pid,
SectionCallback *section_cb, void *opaque,
int check_crc)
MpegTSFilter *filter;
MpegTSSectionFilter *sec;
+#ifdef DEBUG_SI
+ av_log(ts->stream, AV_LOG_DEBUG, "Filter: pid=0x%x\n", pid);
+#endif
if (pid >= NB_PID_MAX || ts->pids[pid])
return NULL;
filter = av_mallocz(sizeof(MpegTSFilter));
- if (!filter)
+ if (!filter)
return NULL;
ts->pids[pid] = filter;
filter->type = MPEGTS_SECTION;
return filter;
}
-MpegTSFilter *mpegts_open_pes_filter(MpegTSContext *ts, unsigned int pid,
+static MpegTSFilter *mpegts_open_pes_filter(MpegTSContext *ts, unsigned int pid,
PESCallback *pes_cb,
void *opaque)
{
if (pid >= NB_PID_MAX || ts->pids[pid])
return NULL;
filter = av_mallocz(sizeof(MpegTSFilter));
- if (!filter)
+ if (!filter)
return NULL;
ts->pids[pid] = filter;
filter->type = MPEGTS_PES;
return filter;
}
-void mpegts_close_filter(MpegTSContext *ts, MpegTSFilter *filter)
+static void mpegts_close_filter(MpegTSContext *ts, MpegTSFilter *filter)
{
int pid;
pid = filter->pid;
if (filter->type == MPEGTS_SECTION)
av_freep(&filter->u.section_filter.section_buf);
+ else if (filter->type == MPEGTS_PES)
+ av_freep(&filter->u.pes_filter.opaque);
+
av_free(filter);
ts->pids[pid] = NULL;
}
+static int analyze(const uint8_t *buf, int size, int packet_size, int *index){
+ int stat[packet_size];
+ int i;
+ int x=0;
+ int best_score=0;
+
+ memset(stat, 0, packet_size*sizeof(int));
+
+ for(x=i=0; i<size; i++){
+ if(buf[i] == 0x47){
+ stat[x]++;
+ if(stat[x] > best_score){
+ best_score= stat[x];
+ if(index) *index= x;
+ }
+ }
+
+ x++;
+ if(x == packet_size) x= 0;
+ }
+
+ return best_score;
+}
+
/* autodetect fec presence. Must have at least 1024 bytes */
static int get_packet_size(const uint8_t *buf, int size)
{
- int i;
+ int score, fec_score, dvhs_score;
if (size < (TS_FEC_PACKET_SIZE * 5 + 1))
return -1;
- for(i=0;i<5;i++) {
- if (buf[i * TS_PACKET_SIZE] != 0x47)
- goto try_fec;
- }
- return TS_PACKET_SIZE;
- try_fec:
- for(i=0;i<5;i++) {
- if (buf[i * TS_FEC_PACKET_SIZE] != 0x47)
- return -1;
- }
- return TS_FEC_PACKET_SIZE;
+
+ score = analyze(buf, size, TS_PACKET_SIZE, NULL);
+ dvhs_score = analyze(buf, size, TS_DVHS_PACKET_SIZE, NULL);
+ fec_score= analyze(buf, size, TS_FEC_PACKET_SIZE, NULL);
+// av_log(NULL, AV_LOG_DEBUG, "score: %d, dvhs_score: %d, fec_score: %d \n", score, dvhs_score, fec_score);
+
+ if (score > fec_score && score > dvhs_score) return TS_PACKET_SIZE;
+ else if(dvhs_score > score && dvhs_score > fec_score) return TS_DVHS_PACKET_SIZE;
+ else if(score < fec_score && dvhs_score < fec_score) return TS_FEC_PACKET_SIZE;
+ else return -1;
}
typedef struct SectionHeader {
p = *pp;
if ((p + 1) >= p_end)
return -1;
- c = (p[0] << 8) | p[1];
+ c = AV_RB16(p);
p += 2;
*pp = p;
return c;
return str;
}
-static int parse_section_header(SectionHeader *h,
+static int parse_section_header(SectionHeader *h,
const uint8_t **pp, const uint8_t *p_end)
{
int val;
return 0;
}
-static MpegTSService *new_service(MpegTSContext *ts, int sid,
+static MpegTSService *new_service(MpegTSContext *ts, int sid,
char *provider_name, char *name)
{
- MpegTSService *service;
+ MpegTSService *service=NULL;
+ int i;
#ifdef DEBUG_SI
- printf("new_service: sid=0x%04x provider='%s' name='%s'\n",
+ av_log(ts->stream, AV_LOG_DEBUG, "new_service: "
+ "sid=0x%04x provider='%s' name='%s'\n",
sid, provider_name, name);
#endif
- service = av_mallocz(sizeof(MpegTSService));
- if (!service)
- return NULL;
+ for(i=0; i<ts->nb_services; i++)
+ if(ts->services[i]->sid == sid)
+ service= ts->services[i];
+
+ if(!service){
+ service = av_mallocz(sizeof(MpegTSService));
+ if (!service)
+ return NULL;
+ dynarray_add(&ts->services, &ts->nb_services, service);
+ }
service->sid = sid;
- service->provider_name = provider_name;
- service->name = name;
- dynarray_add(&ts->services, &ts->nb_services, service);
+ assert((!provider_name) == (!name));
+ if(name){
+ av_free(service->provider_name);
+ av_free(service-> name);
+ service->provider_name = provider_name;
+ service-> name = name;
+ }
return service;
}
-static void pmt_cb(void *opaque, const uint8_t *section, int section_len)
+static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
- MpegTSContext *ts = opaque;
+ MpegTSContext *ts = filter->u.section_filter.opaque;
SectionHeader h1, *h = &h1;
- const uint8_t *p, *p_end;
- int program_info_length, pcr_pid, pid, stream_type, desc_length;
-
+ PESContext *pes;
+ AVStream *st;
+ const uint8_t *p, *p_end, *desc_list_end, *desc_end;
+ int program_info_length, pcr_pid, pid, stream_type;
+ int desc_list_len, desc_len, desc_tag;
+ int comp_page = 0, anc_page = 0; /* initialize to kill warnings */
+ char language[4] = {0}; /* initialize to kill warnings */
+
#ifdef DEBUG_SI
- printf("PMT:\n");
- av_hex_dump((uint8_t *)section, section_len);
+ av_log(ts->stream, AV_LOG_DEBUG, "PMT: len %i\n", section_len);
+ av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
#endif
p_end = section + section_len - 4;
p = section;
if (parse_section_header(h, &p, p_end) < 0)
return;
#ifdef DEBUG_SI
- printf("sid=0x%x sec_num=%d/%d\n", h->id, h->sec_num, h->last_sec_num);
+ av_log(ts->stream, AV_LOG_DEBUG, "sid=0x%x sec_num=%d/%d\n",
+ h->id, h->sec_num, h->last_sec_num);
#endif
- if (h->tid != PMT_TID || h->id != ts->req_sid)
+ if (h->tid != PMT_TID)
return;
pcr_pid = get16(&p, p_end) & 0x1fff;
if (pcr_pid < 0)
return;
#ifdef DEBUG_SI
- printf("pcr_pid=0x%x\n", pcr_pid);
+ av_log(ts->stream, AV_LOG_DEBUG, "pcr_pid=0x%x\n", pcr_pid);
#endif
program_info_length = get16(&p, p_end) & 0xfff;
if (program_info_length < 0)
if (p >= p_end)
return;
for(;;) {
+ language[0] = 0;
+ st = 0;
stream_type = get8(&p, p_end);
if (stream_type < 0)
break;
pid = get16(&p, p_end) & 0x1fff;
if (pid < 0)
break;
- desc_length = get16(&p, p_end) & 0xfff;
- if (desc_length < 0)
+ desc_list_len = get16(&p, p_end) & 0xfff;
+ if (desc_list_len < 0)
break;
- p += desc_length;
- if (p > p_end)
- return;
+ desc_list_end = p + desc_list_len;
+ if (desc_list_end > p_end)
+ break;
+ for(;;) {
+ desc_tag = get8(&p, desc_list_end);
+ if (desc_tag < 0)
+ break;
+ if (stream_type == STREAM_TYPE_PRIVATE_DATA) {
+ if((desc_tag == 0x6A) || (desc_tag == 0x7A)) {
+ /*assume DVB AC-3 Audio*/
+ stream_type = STREAM_TYPE_AUDIO_AC3;
+ } else if(desc_tag == 0x7B) {
+ /* DVB DTS audio */
+ stream_type = STREAM_TYPE_AUDIO_DTS;
+ }
+ }
+ desc_len = get8(&p, desc_list_end);
+ desc_end = p + desc_len;
+ if (desc_end > desc_list_end)
+ break;
+#ifdef DEBUG_SI
+ av_log(ts->stream, AV_LOG_DEBUG, "tag: 0x%02x len=%d\n",
+ desc_tag, desc_len);
+#endif
+ switch(desc_tag) {
+ case DVB_SUBT_DESCID:
+ if (stream_type == STREAM_TYPE_PRIVATE_DATA)
+ stream_type = STREAM_TYPE_SUBTITLE_DVB;
+
+ language[0] = get8(&p, desc_end);
+ language[1] = get8(&p, desc_end);
+ language[2] = get8(&p, desc_end);
+ language[3] = 0;
+ get8(&p, desc_end);
+ comp_page = get16(&p, desc_end);
+ anc_page = get16(&p, desc_end);
+
+ break;
+ case 0x0a: /* ISO 639 language descriptor */
+ language[0] = get8(&p, desc_end);
+ language[1] = get8(&p, desc_end);
+ language[2] = get8(&p, desc_end);
+ language[3] = 0;
+ break;
+ default:
+ break;
+ }
+ p = desc_end;
+ }
+ p = desc_list_end;
#ifdef DEBUG_SI
- printf("stream_type=%d pid=0x%x\n", stream_type, pid);
+ av_log(ts->stream, AV_LOG_DEBUG, "stream_type=%d pid=0x%x\n",
+ stream_type, pid);
#endif
/* now create ffmpeg stream */
switch(stream_type) {
- case STREAM_TYPE_AUDIO:
- case STREAM_TYPE_VIDEO:
- add_pes_stream(ts->stream, pid);
+ case STREAM_TYPE_AUDIO_MPEG1:
+ case STREAM_TYPE_AUDIO_MPEG2:
+ case STREAM_TYPE_VIDEO_MPEG1:
+ case STREAM_TYPE_VIDEO_MPEG2:
+ case STREAM_TYPE_VIDEO_MPEG4:
+ case STREAM_TYPE_VIDEO_H264:
+ case STREAM_TYPE_VIDEO_VC1:
+ case STREAM_TYPE_AUDIO_AAC:
+ case STREAM_TYPE_AUDIO_AC3:
+ case STREAM_TYPE_AUDIO_DTS:
+ case STREAM_TYPE_SUBTITLE_DVB:
+ if(ts->pids[pid]){
+ assert(ts->pids[pid].type == MPEGTS_PES);
+ pes= ts->pids[pid]->u.pes_filter.opaque;
+ st= pes->st;
+ }else{
+ pes = add_pes_stream(ts, pid, pcr_pid, stream_type);
+ if (pes)
+ st = new_pes_av_stream(pes, 0);
+ }
break;
default:
/* we ignore the other streams */
break;
}
+
+ if (st) {
+ if (language[0] != 0) {
+ memcpy(st->language, language, 4);
+ }
+
+ if (stream_type == STREAM_TYPE_SUBTITLE_DVB) {
+ st->codec->sub_id = (anc_page << 16) | comp_page;
+ }
+ }
}
/* all parameters are there */
- ts->set_service_cb(ts->set_service_opaque, 0);
- mpegts_close_filter(ts, ts->pmt_filter);
- ts->pmt_filter = NULL;
+ ts->stop_parse++;
+ mpegts_close_filter(ts, filter);
}
-static void pat_cb(void *opaque, const uint8_t *section, int section_len)
+static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
- MpegTSContext *ts = opaque;
+ MpegTSContext *ts = filter->u.section_filter.opaque;
SectionHeader h1, *h = &h1;
const uint8_t *p, *p_end;
int sid, pmt_pid;
#ifdef DEBUG_SI
- printf("PAT:\n");
- av_hex_dump((uint8_t *)section, section_len);
+ av_log(ts->stream, AV_LOG_DEBUG, "PAT:\n");
+ av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
#endif
p_end = section + section_len - 4;
p = section;
if (pmt_pid < 0)
break;
#ifdef DEBUG_SI
- printf("sid=0x%x pid=0x%x\n", sid, pmt_pid);
+ av_log(ts->stream, AV_LOG_DEBUG, "sid=0x%x pid=0x%x\n", sid, pmt_pid);
#endif
if (sid == 0x0000) {
/* NIT info */
} else {
- if (ts->req_sid == sid) {
- ts->pmt_filter = mpegts_open_section_filter(ts, pmt_pid,
- pmt_cb, ts, 1);
- goto found;
- }
+ new_service(ts, sid, NULL, NULL);
+ ts->stop_parse--;
+ mpegts_open_section_filter(ts, pmt_pid, pmt_cb, ts, 1);
}
}
/* not found */
- ts->set_service_cb(ts->set_service_opaque, -1);
+ ts->stop_parse++;
- found:
- mpegts_close_filter(ts, ts->pat_filter);
- ts->pat_filter = NULL;
+ mpegts_close_filter(ts, filter);
}
-void mpegts_set_service(MpegTSContext *ts, int sid,
- SetServiceCallback *set_service_cb, void *opaque)
+static void mpegts_set_service(MpegTSContext *ts)
{
- ts->set_service_cb = set_service_cb;
- ts->set_service_opaque = opaque;
- ts->req_sid = sid;
- ts->pat_filter = mpegts_open_section_filter(ts, PAT_PID,
+ mpegts_open_section_filter(ts, PAT_PID,
pat_cb, ts, 1);
}
-static void sdt_cb(void *opaque, const uint8_t *section, int section_len)
+static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
- MpegTSContext *ts = opaque;
+ MpegTSContext *ts = filter->u.section_filter.opaque;
SectionHeader h1, *h = &h1;
const uint8_t *p, *p_end, *desc_list_end, *desc_end;
int onid, val, sid, desc_list_len, desc_tag, desc_len, service_type;
char *name, *provider_name;
#ifdef DEBUG_SI
- printf("SDT:\n");
- av_hex_dump((uint8_t *)section, section_len);
+ av_log(ts->stream, AV_LOG_DEBUG, "SDT:\n");
+ av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
#endif
p_end = section + section_len - 4;
if (desc_end > desc_list_end)
break;
#ifdef DEBUG_SI
- printf("tag: 0x%02x len=%d\n", desc_tag, desc_len);
+ av_log(ts->stream, AV_LOG_DEBUG, "tag: 0x%02x len=%d\n",
+ desc_tag, desc_len);
#endif
switch(desc_tag) {
case 0x48:
}
p = desc_list_end;
}
- ts->stop_parse = 1;
-
- /* remove filter */
- mpegts_close_filter(ts, ts->sdt_filter);
- ts->sdt_filter = NULL;
}
-/* scan services an a transport stream by looking at the sdt */
-void mpegts_scan_sdt(MpegTSContext *ts)
+/* scan services in a transport stream by looking at the SDT */
+static void mpegts_scan_sdt(MpegTSContext *ts)
{
- ts->sdt_filter = mpegts_open_section_filter(ts, SDT_PID,
+ mpegts_open_section_filter(ts, SDT_PID,
sdt_cb, ts, 1);
}
-
-/* TS stream handling */
-
-enum MpegTSState {
- MPEGTS_HEADER = 0,
- MPEGTS_PESHEADER_FILL,
- MPEGTS_PAYLOAD,
- MPEGTS_SKIP,
-};
-
-/* enough for PES header + length */
-#define PES_START_SIZE 9
-#define MAX_PES_HEADER_SIZE (9 + 255)
-
-typedef struct PESContext {
- int pid;
- AVFormatContext *stream;
- AVStream *st;
- enum MpegTSState state;
- /* used to get the format */
- int data_index;
- int total_size;
- int pes_header_size;
- int64_t pts, dts;
- uint8_t header[MAX_PES_HEADER_SIZE];
-} PESContext;
-
static int64_t get_pts(const uint8_t *p)
{
- int64_t pts;
- int val;
-
- pts = (int64_t)((p[0] >> 1) & 0x07) << 30;
- val = (p[1] << 8) | p[2];
- pts |= (int64_t)(val >> 1) << 15;
- val = (p[3] << 8) | p[4];
- pts |= (int64_t)(val >> 1);
+ int64_t pts = (int64_t)((p[0] >> 1) & 0x07) << 30;
+ pts |= (AV_RB16(p + 1) >> 1) << 15;
+ pts |= AV_RB16(p + 3) >> 1;
return pts;
}
/* return non zero if a packet could be constructed */
-static void mpegts_push_data(void *opaque,
+static void mpegts_push_data(MpegTSFilter *filter,
const uint8_t *buf, int buf_size, int is_start)
{
- PESContext *pes = opaque;
- MpegTSContext *ts = pes->stream->priv_data;
- AVStream *st;
+ PESContext *pes = filter->u.pes_filter.opaque;
+ MpegTSContext *ts = pes->ts;
const uint8_t *p;
- int len, code, codec_type, codec_id;
-
+ int len, code;
+
+ if(!ts->pkt)
+ return;
+
if (is_start) {
pes->state = MPEGTS_HEADER;
pes->data_index = 0;
/* we got all the PES or section header. We can now
decide */
#if 0
- av_hex_dump(pes->header, pes->data_index);
+ av_hex_dump_log(pes->stream, AV_LOG_DEBUG, pes->header, pes->data_index);
#endif
if (pes->header[0] == 0x00 && pes->header[1] == 0x00 &&
pes->header[2] == 0x01) {
/* it must be an mpeg2 PES stream */
- /* XXX: add AC3 support */
code = pes->header[3] | 0x100;
if (!((code >= 0x1c0 && code <= 0x1df) ||
- (code >= 0x1e0 && code <= 0x1ef)))
+ (code >= 0x1e0 && code <= 0x1ef) ||
+ (code == 0x1bd) || (code == 0x1fd)))
goto skip;
if (!pes->st) {
/* allocate stream */
- if (code >= 0x1c0 && code <= 0x1df) {
- codec_type = CODEC_TYPE_AUDIO;
- codec_id = CODEC_ID_MP2;
- } else {
- codec_type = CODEC_TYPE_VIDEO;
- codec_id = CODEC_ID_MPEG1VIDEO;
- }
- st = av_new_stream(pes->stream, pes->pid);
- if (st) {
- st->priv_data = pes;
- st->codec.codec_type = codec_type;
- st->codec.codec_id = codec_id;
- pes->st = st;
- }
+ new_pes_av_stream(pes, code);
}
pes->state = MPEGTS_PESHEADER_FILL;
- pes->total_size = (pes->header[4] << 8) | pes->header[5];
+ pes->total_size = AV_RB16(pes->header + 4);
/* NOTE: a zero total size means the PES size is
unbounded */
if (pes->total_size)
memcpy(pkt->data, p, len);
pkt->stream_index = pes->st->index;
pkt->pts = pes->pts;
+ pkt->dts = pes->dts;
/* reset pts values */
pes->pts = AV_NOPTS_VALUE;
pes->dts = AV_NOPTS_VALUE;
}
}
-static int add_pes_stream(AVFormatContext *s, int pid)
+static AVStream* new_pes_av_stream(PESContext *pes, uint32_t code)
+{
+ AVStream *st;
+ int codec_type, codec_id;
+
+ switch(pes->stream_type){
+ case STREAM_TYPE_AUDIO_MPEG1:
+ case STREAM_TYPE_AUDIO_MPEG2:
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_MP3;
+ break;
+ case STREAM_TYPE_VIDEO_MPEG1:
+ case STREAM_TYPE_VIDEO_MPEG2:
+ codec_type = CODEC_TYPE_VIDEO;
+ codec_id = CODEC_ID_MPEG2VIDEO;
+ break;
+ case STREAM_TYPE_VIDEO_MPEG4:
+ codec_type = CODEC_TYPE_VIDEO;
+ codec_id = CODEC_ID_MPEG4;
+ break;
+ case STREAM_TYPE_VIDEO_H264:
+ codec_type = CODEC_TYPE_VIDEO;
+ codec_id = CODEC_ID_H264;
+ break;
+ case STREAM_TYPE_VIDEO_VC1:
+ codec_type = CODEC_TYPE_VIDEO;
+ codec_id = CODEC_ID_VC1;
+ break;
+ case STREAM_TYPE_AUDIO_AAC:
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_AAC;
+ break;
+ case STREAM_TYPE_AUDIO_AC3:
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_AC3;
+ break;
+ case STREAM_TYPE_AUDIO_DTS:
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_DTS;
+ break;
+ case STREAM_TYPE_SUBTITLE_DVB:
+ codec_type = CODEC_TYPE_SUBTITLE;
+ codec_id = CODEC_ID_DVB_SUBTITLE;
+ break;
+ default:
+ if (code >= 0x1c0 && code <= 0x1df) {
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_MP2;
+ } else if (code == 0x1bd) {
+ codec_type = CODEC_TYPE_AUDIO;
+ codec_id = CODEC_ID_AC3;
+ } else {
+ codec_type = CODEC_TYPE_VIDEO;
+ codec_id = CODEC_ID_MPEG1VIDEO;
+ }
+ break;
+ }
+ st = av_new_stream(pes->stream, pes->pid);
+ if (st) {
+ av_set_pts_info(st, 33, 1, 90000);
+ st->priv_data = pes;
+ st->codec->codec_type = codec_type;
+ st->codec->codec_id = codec_id;
+ st->need_parsing = AVSTREAM_PARSE_FULL;
+ pes->st = st;
+ }
+ return st;
+}
+
+
+static PESContext *add_pes_stream(MpegTSContext *ts, int pid, int pcr_pid, int stream_type)
{
- MpegTSContext *ts = s->priv_data;
MpegTSFilter *tss;
PESContext *pes;
/* if no pid found, then add a pid context */
pes = av_mallocz(sizeof(PESContext));
if (!pes)
- return -1;
- pes->stream = s;
+ return 0;
+ pes->ts = ts;
+ pes->stream = ts->stream;
pes->pid = pid;
+ pes->pcr_pid = pcr_pid;
+ pes->stream_type = stream_type;
tss = mpegts_open_pes_filter(ts, pid, mpegts_push_data, pes);
if (!tss) {
av_free(pes);
- return -1;
+ return 0;
}
- return 0;
+ return pes;
}
/* handle one TS packet */
-static void handle_packet(AVFormatContext *s, uint8_t *packet)
+static void handle_packet(MpegTSContext *ts, const uint8_t *packet)
{
- MpegTSContext *ts = s->priv_data;
+ AVFormatContext *s = ts->stream;
MpegTSFilter *tss;
int len, pid, cc, cc_ok, afc, is_start;
const uint8_t *p, *p_end;
- pid = ((packet[1] & 0x1f) << 8) | packet[2];
+ pid = AV_RB16(packet + 1) & 0x1fff;
is_start = packet[1] & 0x40;
tss = ts->pids[pid];
if (ts->auto_guess && tss == NULL && is_start) {
- add_pes_stream(s, pid);
+ add_pes_stream(ts, pid, -1, 0);
tss = ts->pids[pid];
}
if (!tss)
cc = (packet[3] & 0xf);
cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
tss->last_cc = cc;
-
+
/* skip adaptation field */
afc = (packet[3] >> 4) & 3;
p = packet + 4;
p_end = packet + TS_PACKET_SIZE;
if (p >= p_end)
return;
-
+
if (tss->type == MPEGTS_SECTION) {
if (is_start) {
/* pointer field present */
if (p + len > p_end)
return;
if (len && cc_ok) {
- /* write remaning section bytes */
- write_section_data(s, tss,
+ /* write remaining section bytes */
+ write_section_data(s, tss,
p, len, 0);
+ /* check whether filter has been closed */
+ if (!ts->pids[pid])
+ return;
}
p += len;
if (p < p_end) {
- write_section_data(s, tss,
+ write_section_data(s, tss,
p, p_end - p, 1);
}
} else {
if (cc_ok) {
- write_section_data(s, tss,
+ write_section_data(s, tss,
p, p_end - p, 0);
- }
+ }
}
} else {
- tss->u.pes_filter.pes_cb(tss->u.pes_filter.opaque,
+ tss->u.pes_filter.pes_cb(tss,
p, p_end - p, is_start);
}
}
-static int handle_packets(AVFormatContext *s, int nb_packets)
+/* XXX: try to find a better synchro over several packets (use
+ get_packet_size() ?) */
+static int mpegts_resync(ByteIOContext *pb)
{
- MpegTSContext *ts = s->priv_data;
+ int c, i;
+
+ for(i = 0;i < MAX_RESYNC_SIZE; i++) {
+ c = url_fgetc(pb);
+ if (c < 0)
+ return -1;
+ if (c == 0x47) {
+ url_fseek(pb, -1, SEEK_CUR);
+ return 0;
+ }
+ }
+ /* no sync found */
+ return -1;
+}
+
+/* return -1 if error or EOF. Return 0 if OK. */
+static int read_packet(ByteIOContext *pb, uint8_t *buf, int raw_packet_size)
+{
+ int skip, len;
+
+ for(;;) {
+ len = get_buffer(pb, buf, TS_PACKET_SIZE);
+ if (len != TS_PACKET_SIZE)
+ return AVERROR_IO;
+ /* check paquet sync byte */
+ if (buf[0] != 0x47) {
+ /* find a new packet start */
+ url_fseek(pb, -TS_PACKET_SIZE, SEEK_CUR);
+ if (mpegts_resync(pb) < 0)
+ return AVERROR_INVALIDDATA;
+ else
+ continue;
+ } else {
+ skip = raw_packet_size - TS_PACKET_SIZE;
+ if (skip > 0)
+ url_fskip(pb, skip);
+ break;
+ }
+ }
+ return 0;
+}
+
+static int handle_packets(MpegTSContext *ts, int nb_packets)
+{
+ AVFormatContext *s = ts->stream;
ByteIOContext *pb = &s->pb;
- uint8_t packet[TS_FEC_PACKET_SIZE];
- int packet_num, len;
+ uint8_t packet[TS_PACKET_SIZE];
+ int packet_num, ret;
ts->stop_parse = 0;
packet_num = 0;
for(;;) {
- if (ts->stop_parse)
+ if (ts->stop_parse>0)
break;
packet_num++;
if (nb_packets != 0 && packet_num >= nb_packets)
break;
- len = get_buffer(pb, packet, ts->raw_packet_size);
- if (len != ts->raw_packet_size)
- return AVERROR_IO;
- /* check paquet sync byte */
- /* XXX: accept to resync ? */
- if (packet[0] != 0x47)
- return AVERROR_INVALIDDATA;
- handle_packet(s, packet);
+ ret = read_packet(pb, packet, ts->raw_packet_size);
+ if (ret != 0)
+ return ret;
+ handle_packet(ts, packet);
}
return 0;
}
static int mpegts_probe(AVProbeData *p)
{
- int size;
- size = get_packet_size(p->buf, p->buf_size);
- if (size < 0)
+#if 1
+ const int size= p->buf_size;
+ int score, fec_score, dvhs_score;
+#define CHECK_COUNT 10
+
+ if (size < (TS_FEC_PACKET_SIZE * CHECK_COUNT))
+ return -1;
+
+ score = analyze(p->buf, TS_PACKET_SIZE *CHECK_COUNT, TS_PACKET_SIZE, NULL);
+ dvhs_score = analyze(p->buf, TS_DVHS_PACKET_SIZE *CHECK_COUNT, TS_DVHS_PACKET_SIZE, NULL);
+ fec_score= analyze(p->buf, TS_FEC_PACKET_SIZE*CHECK_COUNT, TS_FEC_PACKET_SIZE, NULL);
+// av_log(NULL, AV_LOG_DEBUG, "score: %d, dvhs_score: %d, fec_score: %d \n", score, dvhs_score, fec_score);
+
+// we need a clear definition for the returned score otherwise things will become messy sooner or later
+ if (score > fec_score && score > dvhs_score && score > 6) return AVPROBE_SCORE_MAX + score - CHECK_COUNT;
+ else if(dvhs_score > score && dvhs_score > fec_score && dvhs_score > 6) return AVPROBE_SCORE_MAX + dvhs_score - CHECK_COUNT;
+ else if( fec_score > 6) return AVPROBE_SCORE_MAX + fec_score - CHECK_COUNT;
+ else return -1;
+#else
+ /* only use the extension for safer guess */
+ if (match_ext(p->filename, "ts"))
+ return AVPROBE_SCORE_MAX;
+ else
return 0;
- return AVPROBE_SCORE_MAX - 1;
+#endif
}
-void set_service_cb(void *opaque, int ret)
+/* return the 90 kHz PCR and the extension for the 27 MHz PCR. return
+ (-1) if not available */
+static int parse_pcr(int64_t *ppcr_high, int *ppcr_low,
+ const uint8_t *packet)
{
- MpegTSContext *ts = opaque;
- ts->set_service_ret = ret;
- ts->stop_parse = 1;
+ int afc, len, flags;
+ const uint8_t *p;
+ unsigned int v;
+
+ afc = (packet[3] >> 4) & 3;
+ if (afc <= 1)
+ return -1;
+ p = packet + 4;
+ len = p[0];
+ p++;
+ if (len == 0)
+ return -1;
+ flags = *p++;
+ len--;
+ if (!(flags & 0x10))
+ return -1;
+ if (len < 6)
+ return -1;
+ v = AV_RB32(p);
+ *ppcr_high = ((int64_t)v << 1) | (p[4] >> 7);
+ *ppcr_low = ((p[4] & 1) << 8) | p[5];
+ return 0;
}
static int mpegts_read_header(AVFormatContext *s,
uint8_t buf[1024];
int len;
int64_t pos;
- MpegTSService *service;
-
+
+ if (ap) {
+ ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
+ if(ap->mpeg2ts_raw){
+ av_log(s, AV_LOG_ERROR, "use mpegtsraw_demuxer!\n");
+ return -1;
+ }
+ }
+
/* read the first 1024 bytes to get packet size */
pos = url_ftell(pb);
len = get_buffer(pb, buf, sizeof(buf));
ts->raw_packet_size = get_packet_size(buf, sizeof(buf));
if (ts->raw_packet_size <= 0)
goto fail;
+ ts->stream = s;
ts->auto_guess = 0;
-
- if (!ts->auto_guess) {
+
+ if (s->iformat == &mpegts_demuxer) {
+ /* normal demux */
/* first do a scaning to get all the services */
url_fseek(pb, pos, SEEK_SET);
mpegts_scan_sdt(ts);
-
- handle_packets(s, MAX_SCAN_PACKETS);
-
- /* if no service found, no need to do anything */
- if (ts->nb_services <= 0)
- return -1;
-
- /* now find the info for the first service */
-
- url_fseek(pb, pos, SEEK_SET);
- service = ts->services[0];
+
+ mpegts_set_service(ts);
+
+ handle_packets(ts, s->probesize);
+ /* if could not find service, enable auto_guess */
+
+ ts->auto_guess = 1;
+
#ifdef DEBUG_SI
- printf("tuning to '%s'\n", service->name);
+ av_log(ts->stream, AV_LOG_DEBUG, "tuning done\n");
#endif
- /* tune to first service found */
- ts->stream = s;
- mpegts_set_service(ts, service->sid, set_service_cb, ts);
-
- handle_packets(s, MAX_SCAN_PACKETS);
-
- /* if could not find service, exit */
- if (ts->set_service_ret != 0)
- return -1;
+ s->ctx_flags |= AVFMTCTX_NOHEADER;
+ } else {
+ AVStream *st;
+ int pcr_pid, pid, nb_packets, nb_pcrs, ret, pcr_l;
+ int64_t pcrs[2], pcr_h;
+ int packet_count[2];
+ uint8_t packet[TS_PACKET_SIZE];
+
+ /* only read packets */
+
+ st = av_new_stream(s, 0);
+ if (!st)
+ goto fail;
+ av_set_pts_info(st, 60, 1, 27000000);
+ st->codec->codec_type = CODEC_TYPE_DATA;
+ st->codec->codec_id = CODEC_ID_MPEG2TS;
+
+ /* we iterate until we find two PCRs to estimate the bitrate */
+ pcr_pid = -1;
+ nb_pcrs = 0;
+ nb_packets = 0;
+ for(;;) {
+ ret = read_packet(&s->pb, packet, ts->raw_packet_size);
+ if (ret < 0)
+ return -1;
+ pid = AV_RB16(packet + 1) & 0x1fff;
+ if ((pcr_pid == -1 || pcr_pid == pid) &&
+ parse_pcr(&pcr_h, &pcr_l, packet) == 0) {
+ pcr_pid = pid;
+ packet_count[nb_pcrs] = nb_packets;
+ pcrs[nb_pcrs] = pcr_h * 300 + pcr_l;
+ nb_pcrs++;
+ if (nb_pcrs >= 2)
+ break;
+ }
+ nb_packets++;
+ }
-#ifdef DEBUG_SI
- printf("tuning done\n");
+ /* NOTE1: the bitrate is computed without the FEC */
+ /* NOTE2: it is only the bitrate of the start of the stream */
+ ts->pcr_incr = (pcrs[1] - pcrs[0]) / (packet_count[1] - packet_count[0]);
+ ts->cur_pcr = pcrs[0] - ts->pcr_incr * packet_count[0];
+ s->bit_rate = (TS_PACKET_SIZE * 8) * 27e6 / ts->pcr_incr;
+ st->codec->bit_rate = s->bit_rate;
+ st->start_time = ts->cur_pcr;
+#if 0
+ av_log(ts->stream, AV_LOG_DEBUG, "start=%0.3f pcr=%0.3f incr=%d\n",
+ st->start_time / 1000000.0, pcrs[0] / 27e6, ts->pcr_incr);
#endif
}
return -1;
}
+#define MAX_PACKET_READAHEAD ((128 * 1024) / 188)
+
+static int mpegts_raw_read_packet(AVFormatContext *s,
+ AVPacket *pkt)
+{
+ MpegTSContext *ts = s->priv_data;
+ int ret, i;
+ int64_t pcr_h, next_pcr_h, pos;
+ int pcr_l, next_pcr_l;
+ uint8_t pcr_buf[12];
+
+ if (av_new_packet(pkt, TS_PACKET_SIZE) < 0)
+ return AVERROR(ENOMEM);
+ pkt->pos= url_ftell(&s->pb);
+ ret = read_packet(&s->pb, pkt->data, ts->raw_packet_size);
+ if (ret < 0) {
+ av_free_packet(pkt);
+ return ret;
+ }
+ if (ts->mpeg2ts_compute_pcr) {
+ /* compute exact PCR for each packet */
+ if (parse_pcr(&pcr_h, &pcr_l, pkt->data) == 0) {
+ /* we read the next PCR (XXX: optimize it by using a bigger buffer */
+ pos = url_ftell(&s->pb);
+ for(i = 0; i < MAX_PACKET_READAHEAD; i++) {
+ url_fseek(&s->pb, pos + i * ts->raw_packet_size, SEEK_SET);
+ get_buffer(&s->pb, pcr_buf, 12);
+ if (parse_pcr(&next_pcr_h, &next_pcr_l, pcr_buf) == 0) {
+ /* XXX: not precise enough */
+ ts->pcr_incr = ((next_pcr_h - pcr_h) * 300 + (next_pcr_l - pcr_l)) /
+ (i + 1);
+ break;
+ }
+ }
+ url_fseek(&s->pb, pos, SEEK_SET);
+ /* no next PCR found: we use previous increment */
+ ts->cur_pcr = pcr_h * 300 + pcr_l;
+ }
+ pkt->pts = ts->cur_pcr;
+ pkt->duration = ts->pcr_incr;
+ ts->cur_pcr += ts->pcr_incr;
+ }
+ pkt->stream_index = 0;
+ return 0;
+}
+
static int mpegts_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
MpegTSContext *ts = s->priv_data;
+
ts->pkt = pkt;
- return handle_packets(s, 0);
+ return handle_packets(ts, 0);
}
static int mpegts_read_close(AVFormatContext *s)
MpegTSContext *ts = s->priv_data;
int i;
for(i=0;i<NB_PID_MAX;i++)
- av_free(ts->pids[i]);
+ if (ts->pids[i]) mpegts_close_filter(ts, ts->pids[i]);
+
+ for(i = 0; i < ts->nb_services; i++){
+ av_free(ts->services[i]->provider_name);
+ av_free(ts->services[i]->name);
+ av_free(ts->services[i]);
+ }
+ av_freep(&ts->services);
+
+ return 0;
+}
+
+static int64_t mpegts_get_pcr(AVFormatContext *s, int stream_index,
+ int64_t *ppos, int64_t pos_limit)
+{
+ MpegTSContext *ts = s->priv_data;
+ int64_t pos, timestamp;
+ uint8_t buf[TS_PACKET_SIZE];
+ int pcr_l, pcr_pid = ((PESContext*)s->streams[stream_index]->priv_data)->pcr_pid;
+ const int find_next= 1;
+ pos = ((*ppos + ts->raw_packet_size - 1) / ts->raw_packet_size) * ts->raw_packet_size;
+ if (find_next) {
+ for(;;) {
+ url_fseek(&s->pb, pos, SEEK_SET);
+ if (get_buffer(&s->pb, buf, TS_PACKET_SIZE) != TS_PACKET_SIZE)
+ return AV_NOPTS_VALUE;
+ if ((pcr_pid < 0 || (AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
+ parse_pcr(×tamp, &pcr_l, buf) == 0) {
+ break;
+ }
+ pos += ts->raw_packet_size;
+ }
+ } else {
+ for(;;) {
+ pos -= ts->raw_packet_size;
+ if (pos < 0)
+ return AV_NOPTS_VALUE;
+ url_fseek(&s->pb, pos, SEEK_SET);
+ if (get_buffer(&s->pb, buf, TS_PACKET_SIZE) != TS_PACKET_SIZE)
+ return AV_NOPTS_VALUE;
+ if ((pcr_pid < 0 || (AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
+ parse_pcr(×tamp, &pcr_l, buf) == 0) {
+ break;
+ }
+ }
+ }
+ *ppos = pos;
+
+ return timestamp;
+}
+
+static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags){
+ MpegTSContext *ts = s->priv_data;
+ uint8_t buf[TS_PACKET_SIZE];
+ int64_t pos;
+
+ if(av_seek_frame_binary(s, stream_index, target_ts, flags) < 0)
+ return -1;
+
+ pos= url_ftell(&s->pb);
+
+ for(;;) {
+ url_fseek(&s->pb, pos, SEEK_SET);
+ if (get_buffer(&s->pb, buf, TS_PACKET_SIZE) != TS_PACKET_SIZE)
+ return -1;
+// pid = AV_RB16(buf + 1) & 0x1fff;
+ if(buf[1] & 0x40) break;
+ pos += ts->raw_packet_size;
+ }
+ url_fseek(&s->pb, pos, SEEK_SET);
+
return 0;
}
-AVInputFormat mpegts_demux = {
+/**************************************************************/
+/* parsing functions - called from other demuxers such as RTP */
+
+MpegTSContext *mpegts_parse_open(AVFormatContext *s)
+{
+ MpegTSContext *ts;
+
+ ts = av_mallocz(sizeof(MpegTSContext));
+ if (!ts)
+ return NULL;
+ /* no stream case, currently used by RTP */
+ ts->raw_packet_size = TS_PACKET_SIZE;
+ ts->stream = s;
+ ts->auto_guess = 1;
+ return ts;
+}
+
+/* return the consumed length if a packet was output, or -1 if no
+ packet is output */
+int mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt,
+ const uint8_t *buf, int len)
+{
+ int len1;
+
+ len1 = len;
+ ts->pkt = pkt;
+ ts->stop_parse = 0;
+ for(;;) {
+ if (ts->stop_parse>0)
+ break;
+ if (len < TS_PACKET_SIZE)
+ return -1;
+ if (buf[0] != 0x47) {
+ buf++;
+ len--;
+ } else {
+ handle_packet(ts, buf);
+ buf += TS_PACKET_SIZE;
+ len -= TS_PACKET_SIZE;
+ }
+ }
+ return len1 - len;
+}
+
+void mpegts_parse_close(MpegTSContext *ts)
+{
+ int i;
+
+ for(i=0;i<NB_PID_MAX;i++)
+ av_free(ts->pids[i]);
+ av_free(ts);
+}
+
+AVInputFormat mpegts_demuxer = {
"mpegts",
"MPEG2 transport stream format",
sizeof(MpegTSContext),
mpegts_read_header,
mpegts_read_packet,
mpegts_read_close,
- .flags = AVFMT_NOHEADER | AVFMT_SHOW_IDS,
+ read_seek,
+ mpegts_get_pcr,
+ .flags = AVFMT_SHOW_IDS,
};
-int mpegts_init(void)
-{
- av_register_input_format(&mpegts_demux);
- av_register_output_format(&mpegts_mux);
- return 0;
-}
+AVInputFormat mpegtsraw_demuxer = {
+ "mpegtsraw",
+ "MPEG2 raw transport stream format",
+ sizeof(MpegTSContext),
+ mpegts_probe,
+ mpegts_read_header,
+ mpegts_raw_read_packet,
+ mpegts_read_close,
+ read_seek,
+ mpegts_get_pcr,
+ .flags = AVFMT_SHOW_IDS,
+};