33 #define PCR_TIME_BASE 27000000
82 #define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01
83 #define MPEGTS_FLAG_AAC_LATM 0x02
88 #define DEFAULT_PES_HEADER_FREQ 16
89 #define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
93 #define SECTION_LENGTH 1020
96 {
"mpegts_transport_stream_id",
"Set transport_stream_id field.",
98 {
"mpegts_original_network_id",
"Set original_network_id field.",
100 {
"mpegts_service_id",
"Set service_id field.",
102 {
"mpegts_pmt_start_pid",
"Set the first pid of the PMT.",
104 {
"mpegts_start_pid",
"Set the first pid.",
107 {
"pes_payload_size",
"Minimum PES packet payload in bytes",
111 {
"resend_headers",
"Reemit PAT/PMT before writing the next packet",
114 {
"latm",
"Use LATM packetization for AAC",
118 {
"resend_headers",
"Reemit PAT/PMT before writing the next packet",
135 const unsigned char *buf_ptr;
137 int first,
b, len1, left;
140 buf[len - 4] = (crc >> 24) & 0xff;
141 buf[len - 3] = (crc >> 16) & 0xff;
142 buf[len - 2] = (crc >> 8) & 0xff;
143 buf[len - 1] = (crc) & 0xff;
148 first = (buf == buf_ptr);
156 s->
cc = (s->
cc + 1) & 0xf;
163 memcpy(q, buf_ptr, len1);
168 memset(q, 0xff, left);
187 int version,
int sec_num,
int last_sec_num,
191 unsigned int tot_len;
195 tot_len = 3 + 5 + len + 4;
202 put16(&q, flags | (len + 5 + 4));
204 *q++ = 0xc1 | (version << 1);
216 #define DEFAULT_PROVIDER_NAME "Libav"
217 #define DEFAULT_SERVICE_NAME "Service01"
220 #define SDT_RETRANS_TIME 500
221 #define PAT_RETRANS_TIME 100
222 #define PCR_RETRANS_TIME 20
258 int val, stream_type, i, err = 0;
263 program_info_length_ptr = q;
268 val = 0xf000 | (q - program_info_length_ptr - 2);
269 program_info_length_ptr[0] = val >> 8;
270 program_info_length_ptr[1] = val;
325 char *next = lang->
value;
332 for (p = lang->
value; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
337 next = strchr(p,
',');
338 if (strlen(p) != 3 && (!next || next != p + 3))
363 const char *language;
364 language = lang && strlen(lang->
value)==3 ? lang->
value :
"eng";
398 val = 0xf000 | (q - desc_length_ptr - 2);
399 desc_length_ptr[0] = val >> 8;
400 desc_length_ptr[1] = val;
405 "The PMT section cannot fit stream %d and all following streams.\n"
406 "Try reducing the number of languages in the audio streams "
407 "or the total number of streams.\n", i);
435 int i, running_status, free_ca_mode, val;
444 desc_list_len_ptr = q;
456 desc_len_ptr[0] = q - desc_len_ptr - 1;
459 val = (running_status << 13) | (free_ca_mode << 12) |
460 (q - desc_list_len_ptr - 2);
461 desc_list_len_ptr[0] = val >> 8;
462 desc_list_len_ptr[1] = val;
501 const char *service_name;
524 service->
pmt.
cc = 15;
560 }
else if (st->
id < 0x1FFF) {
572 for (j = 0; j < i; j++)
573 if (pids[j] == ts_st->
pid) {
578 pids[i] = ts_st->
pid;
661 "sdt every %d, pat/pmt every %d pkts\n",
714 int64_t pcr_low = pcr % 300, pcr_high = pcr / 300;
716 *buf++ = pcr_high >> 25;
717 *buf++ = pcr_high >> 17;
718 *buf++ = pcr_high >> 9;
719 *buf++ = pcr_high >> 1;
720 *buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
751 *q++ = ts_st->
pid >> 8;
753 *q++ = 0x20 | ts_st->
cc;
770 val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
772 val = (((pts >> 15) & 0x7fff) << 1) | 1;
775 val = (((pts) & 0x7fff) << 1) | 1;
786 if ((pkt[3] & 0x20) == 0) {
800 assert(pkt[3] & 0x20);
808 return pkt + 5 + pkt[4];
819 const uint8_t *payload,
int payload_size,
820 int64_t pts, int64_t dts,
int key)
826 int val, is_start,
len, header_len, write_pcr, private_code,
flags;
827 int afc_len, stuffing_len;
832 while (payload_size > 0) {
847 (dts -
get_pcr(ts, s->
pb)/300) > delay) {
859 val = (ts_st->
pid >> 8);
864 ts_st->
cc = (ts_st->
cc + 1) & 0xf;
865 *q++ = 0x10 | ts_st->
cc;
880 pcr = (dts - delay)*300;
887 int pes_extension = 0;
932 len = payload_size + header_len + 3;
933 if (private_code != 0)
964 if (private_code != 0)
969 header_len = q - buf;
972 if (len > payload_size)
975 if (stuffing_len > 0) {
979 afc_len = buf[4] + 1;
980 memmove(buf + 4 + afc_len + stuffing_len,
982 header_len - (4 + afc_len));
983 buf[4] += stuffing_len;
984 memset(buf + 4 + afc_len, 0xff, stuffing_len);
987 memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
989 buf[4] = stuffing_len - 1;
990 if (stuffing_len >= 2) {
992 memset(buf + 6, 0xff, stuffing_len - 2);
1016 av_log(s,
AV_LOG_WARNING,
"resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
1028 pts = pkt->
pts + delay;
1030 dts = pkt->
dts + delay;
1040 uint32_t
state = -1;
1044 "no startcode found, use -bsf h264_mp4toannexb\n");
1050 av_dlog(s,
"nal %d\n", state & 0x1f);
1051 }
while (p < buf_end && (state & 0x1f) != 9 &&
1052 (state & 0x1f) != 5 && (state & 0x1f) != 1);
1054 if ((state & 0x1f) != 9) {
1058 memcpy(data+6, pkt->
data, pkt->
size);
1066 if (pkt->
size < 2) {
1076 "and extradata missing\n");
1196 .mime_type =
"video/x-mpegts",
1197 .extensions =
"ts,m2t",
1205 .priv_class = &mpegts_muxer_class,
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer)
Return the written size and a pointer to the buffer.
int avformat_write_header(AVFormatContext *s, AVDictionary **options)
Allocate the stream private data and write the stream header to an output media file.
int av_write_frame(AVFormatContext *s, AVPacket *pkt)
Write a packet to an output media file.
#define AV_LOG_WARNING
Something somehow does not look correct.
#define STREAM_TYPE_VIDEO_CAVS
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic?ac->func_descr_generic:ac->func_descr)
AVDictionaryEntry * av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
int avio_open_dyn_buf(AVIOContext **s)
Open a write only memory stream.
int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src)
Copy the settings of the source AVCodecContext into the destination AVCodecContext.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
int first_pts_check
first pts check needed
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
#define DEFAULT_PES_PAYLOAD_SIZE
int id
Format-specific stream ID.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
AVStream ** streams
A list of all streams in the file.
AVFormatContext * avformat_alloc_context(void)
Allocate an AVFormatContext.
static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
static void mpegts_insert_null_packet(AVFormatContext *s)
#define AV_LOG_VERBOSE
Detailed information.
static void mpegts_write_sdt(AVFormatContext *s)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
void avio_write(AVIOContext *s, const unsigned char *buf, int size)
static void extend_af(uint8_t *pkt, int size)
#define MPEGTS_FLAG_AAC_LATM
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
struct AVOutputFormat * oformat
The output container format.
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define STREAM_TYPE_AUDIO_AAC
struct MpegTSService * service
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
static void put16(uint8_t **q_ptr, int val)
static int mpegts_write_section1(MpegTSSection *s, int tid, int id, int version, int sec_num, int last_sec_num, uint8_t *buf, int len)
static void write_pts(uint8_t *q, int fourbits, int64_t pts)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static uint8_t * get_ts_payload_start(uint8_t *pkt)
#define STREAM_TYPE_VIDEO_DIRAC
static void set_af_flag(uint8_t *pkt, int flag)
preferred ID for decoding MPEG audio layer 1, 2 or 3
static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
void av_log(void *avcl, int level, const char *fmt,...)
AVStream * avformat_new_stream(AVFormatContext *s, AVCodec *c)
Add a new stream to a media file.
int mux_rate
set to 1 when VBR
static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
static int write_pcr_bits(uint8_t *buf, int64_t pcr)
int flags
A combination of AV_PKT_FLAG values.
AVCodecContext * codec
Codec context associated with this stream.
static void retransmit_si_info(AVFormatContext *s)
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
#define STREAM_TYPE_AUDIO_AAC_LATM
static const AVOption options[]
int void avio_flush(AVIOContext *s)
int64_t av_rescale(int64_t a, int64_t b, int64_t c)
Rescale a 64-bit integer with rounding to nearest.
#define AV_TIME_BASE
Internal time base represented as integer.
static void putstr8(uint8_t **q_ptr, const char *str)
#define STREAM_TYPE_VIDEO_H264
#define DEFAULT_PROVIDER_NAME
AVOutputFormat ff_mpegts_muxer
AVOutputFormat * av_guess_format(const char *short_name, const char *filename, const char *mime_type)
Return the output format in the list of registered output formats which best matches the provided par...
static int mpegts_write_header(AVFormatContext *s)
#define MPEGTS_FLAG_REEMIT_PAT_PMT
static void mpegts_write_pes(AVFormatContext *s, AVStream *st, const uint8_t *payload, int payload_size, int64_t pts, int64_t dts, int key)
preferred ID for MPEG-1/2 video decoding
#define STREAM_TYPE_VIDEO_MPEG4
int frame_size
Number of samples per channel in an audio frame.
enum AVMediaType codec_type
char * av_strdup(const char *s)
Duplicate the string s.
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
#define STREAM_TYPE_PRIVATE_DATA
Describe the class of an AVClass context structure.
static int mpegts_write_end(AVFormatContext *s)
#define STREAM_TYPE_AUDIO_AC3
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
MpegTSService ** services
static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
static void mpegts_write_flush(AVFormatContext *s)
const uint8_t * avpriv_find_start_code(const uint8_t *restrict p, const uint8_t *end, uint32_t *restrict state)
#define DEFAULT_SERVICE_NAME
common internal api header.
static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb)
int disposition
AV_DISPOSITION_* bit field.
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
void(* write_packet)(struct MpegTSSection *s, const uint8_t *packet)
#define STREAM_TYPE_VIDEO_MPEG2
void * priv_data
Format private data.
static void write_header(FFV1Context *f)
static void mpegts_write_pat(AVFormatContext *s)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
static const AVClass mpegts_muxer_class
#define STREAM_TYPE_AUDIO_MPEG1
This structure stores compressed data.
static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
#define AV_NOPTS_VALUE
Undefined timestamp value.
static MpegTSService * mpegts_add_service(MpegTSWrite *ts, int sid, const char *provider_name, const char *name)