mpegts: K&R formatting cosmetics
This commit is contained in:
Diego Biurrun
parent
bb789016d4
commit
b7b1bf9166
@ -25,7 +25,9 @@
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/opt.h"
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#include "libavcodec/internal.h"
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#include "avformat.h"
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#include "internal.h"
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#include "mpegts.h"
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@ -86,7 +88,7 @@ typedef struct MpegTSWrite {
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} MpegTSWrite;
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/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
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#define DEFAULT_PES_HEADER_FREQ 16
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#define DEFAULT_PES_HEADER_FREQ 16
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#define DEFAULT_PES_PAYLOAD_SIZE ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
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/* The section length is 12 bits. The first 2 are set to 0, the remaining
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@ -102,25 +104,27 @@ static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
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unsigned char *q;
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int first, b, len1, left;
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crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE), -1, buf, len - 4));
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crc = av_bswap32(av_crc(av_crc_get_table(AV_CRC_32_IEEE),
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-1, buf, len - 4));
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buf[len - 4] = (crc >> 24) & 0xff;
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buf[len - 3] = (crc >> 16) & 0xff;
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buf[len - 2] = (crc >> 8) & 0xff;
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buf[len - 1] = (crc) & 0xff;
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buf[len - 2] = (crc >> 8) & 0xff;
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buf[len - 1] = (crc) & 0xff;
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/* send each packet */
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buf_ptr = buf;
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while (len > 0) {
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first = (buf == buf_ptr);
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q = packet;
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*q++ = 0x47;
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b = (s->pid >> 8);
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q = packet;
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*q++ = 0x47;
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b = (s->pid >> 8);
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if (first)
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b |= 0x40;
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*q++ = b;
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*q++ = s->pid;
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*q++ = b;
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*q++ = s->pid;
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s->cc = (s->cc + 1) & 0xf;
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*q++ = 0x10 | s->cc;
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*q++ = 0x10 | s->cc;
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if (first)
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*q++ = 0; /* 0 offset */
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len1 = TS_PACKET_SIZE - (q - packet);
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@ -136,22 +140,22 @@ static void mpegts_write_section(MpegTSSection *s, uint8_t *buf, int len)
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s->write_packet(s, packet);
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buf_ptr += len1;
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len -= len1;
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len -= len1;
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}
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}
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static inline void put16(uint8_t **q_ptr, int val)
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{
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uint8_t *q;
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q = *q_ptr;
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*q++ = val >> 8;
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*q++ = val;
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q = *q_ptr;
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*q++ = val >> 8;
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*q++ = val;
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*q_ptr = q;
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}
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static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
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int version, int sec_num, int last_sec_num,
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uint8_t *buf, int len)
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int version, int sec_num, int last_sec_num,
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uint8_t *buf, int len)
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{
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uint8_t section[1024], *q;
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unsigned int tot_len;
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@ -163,7 +167,7 @@ static int mpegts_write_section1(MpegTSSection *s, int tid, int id,
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if (tot_len > 1024)
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return -1;
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q = section;
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q = section;
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*q++ = tid;
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put16(&q, flags | (len + 5 + 4)); /* 5 byte header + 4 byte CRC */
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put16(&q, id);
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@ -209,7 +213,7 @@ static void mpegts_write_pat(AVFormatContext *s)
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int i;
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q = data;
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for(i = 0; i < ts->nb_services; i++) {
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for (i = 0; i < ts->nb_services; i++) {
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service = ts->services[i];
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put16(&q, service->sid);
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put16(&q, 0xe000 | service->pmt.pid);
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@ -236,11 +240,11 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
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program_info_length_ptr[0] = val >> 8;
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program_info_length_ptr[1] = val;
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for(i = 0; i < s->nb_streams; i++) {
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for (i = 0; i < s->nb_streams; i++) {
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AVStream *st = s->streams[i];
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MpegTSWriteStream *ts_st = st->priv_data;
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AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);
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switch(st->codec->codec_id) {
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AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
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switch (st->codec->codec_id) {
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case AV_CODEC_ID_MPEG1VIDEO:
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case AV_CODEC_ID_MPEG2VIDEO:
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stream_type = STREAM_TYPE_VIDEO_MPEG2;
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@ -265,7 +269,9 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
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stream_type = STREAM_TYPE_AUDIO_MPEG1;
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break;
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case AV_CODEC_ID_AAC:
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stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM) ? STREAM_TYPE_AUDIO_AAC_LATM : STREAM_TYPE_AUDIO_AAC;
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stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM)
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? STREAM_TYPE_AUDIO_AAC_LATM
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: STREAM_TYPE_AUDIO_AAC;
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break;
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case AV_CODEC_ID_AAC_LATM:
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stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
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@ -283,15 +289,15 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
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q += 2; /* patched after */
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/* write optional descriptors here */
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switch(st->codec->codec_type) {
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switch (st->codec->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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if (lang) {
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char *p;
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char *next = lang->value;
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uint8_t *len_ptr;
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*q++ = 0x0a; /* ISO 639 language descriptor */
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len_ptr = q++;
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*q++ = 0x0a; /* ISO 639 language descriptor */
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len_ptr = q++;
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*len_ptr = 0;
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for (p = lang->value; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
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@ -303,14 +309,14 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
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*q++ = *p++;
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*q++ = *p++;
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if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
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*q++ = 0x01;
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else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
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*q++ = 0x02;
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else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
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*q++ = 0x03;
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else
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*q++ = 0; /* undefined type */
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if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
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*q++ = 0x01;
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else if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
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*q++ = 0x02;
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else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
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*q++ = 0x03;
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else
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*q++ = 0; /* undefined type */
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*len_ptr += 4;
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}
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@ -320,24 +326,24 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
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}
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break;
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case AVMEDIA_TYPE_SUBTITLE:
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{
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const char *language;
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language = lang && strlen(lang->value)==3 ? lang->value : "eng";
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*q++ = 0x59;
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*q++ = 8;
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*q++ = language[0];
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*q++ = language[1];
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*q++ = language[2];
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*q++ = 0x10; /* normal subtitles (0x20 = if hearing pb) */
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if(st->codec->extradata_size == 4) {
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memcpy(q, st->codec->extradata, 4);
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q += 4;
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} else {
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put16(&q, 1); /* page id */
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put16(&q, 1); /* ancillary page id */
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}
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{
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const char *language;
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language = lang && strlen(lang->value) == 3 ? lang->value : "eng";
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*q++ = 0x59;
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*q++ = 8;
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*q++ = language[0];
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*q++ = language[1];
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*q++ = language[2];
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*q++ = 0x10; /* normal subtitles (0x20 = if hearing pb) */
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if (st->codec->extradata_size == 4) {
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memcpy(q, st->codec->extradata, 4);
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q += 4;
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} else {
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put16(&q, 1); /* page id */
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put16(&q, 1); /* ancillary page id */
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}
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break;
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}
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break;
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case AVMEDIA_TYPE_VIDEO:
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if (stream_type == STREAM_TYPE_VIDEO_DIRAC) {
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*q++ = 0x05; /*MPEG-2 registration descriptor*/
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@ -371,7 +377,7 @@ static void putstr8(uint8_t **q_ptr, const char *str)
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len = strlen(str);
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*q++ = len;
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memcpy(q, str, len);
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q += len;
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q += len;
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*q_ptr = q;
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}
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@ -385,27 +391,27 @@ static void mpegts_write_sdt(AVFormatContext *s)
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q = data;
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put16(&q, ts->onid);
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*q++ = 0xff;
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for(i = 0; i < ts->nb_services; i++) {
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for (i = 0; i < ts->nb_services; i++) {
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service = ts->services[i];
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put16(&q, service->sid);
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*q++ = 0xfc | 0x00; /* currently no EIT info */
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*q++ = 0xfc | 0x00; /* currently no EIT info */
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desc_list_len_ptr = q;
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q += 2;
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running_status = 4; /* running */
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free_ca_mode = 0;
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q += 2;
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running_status = 4; /* running */
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free_ca_mode = 0;
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/* write only one descriptor for the service name and provider */
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*q++ = 0x48;
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*q++ = 0x48;
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desc_len_ptr = q;
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q++;
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*q++ = 0x01; /* digital television service */
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*q++ = 0x01; /* digital television service */
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putstr8(&q, service->provider_name);
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putstr8(&q, service->name);
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desc_len_ptr[0] = q - desc_len_ptr - 1;
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/* fill descriptor length */
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val = (running_status << 13) | (free_ca_mode << 12) |
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(q - desc_list_len_ptr - 2);
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(q - desc_list_len_ptr - 2);
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desc_list_len_ptr[0] = val >> 8;
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desc_list_len_ptr[1] = val;
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}
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@ -413,8 +419,7 @@ static void mpegts_write_sdt(AVFormatContext *s)
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data, q - data);
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}
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static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
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int sid,
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static MpegTSService *mpegts_add_service(MpegTSWrite *ts, int sid,
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const char *provider_name,
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const char *name)
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{
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@ -423,11 +428,11 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
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service = av_mallocz(sizeof(MpegTSService));
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if (!service)
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return NULL;
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service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
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service->sid = sid;
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service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
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service->sid = sid;
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service->provider_name = av_strdup(provider_name);
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service->name = av_strdup(name);
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service->pcr_pid = 0x1fff;
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service->name = av_strdup(name);
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service->pcr_pid = 0x1fff;
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dynarray_add(&ts->services, &ts->nb_services, service);
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return service;
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}
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@ -463,30 +468,34 @@ static int mpegts_write_header(AVFormatContext *s)
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title = av_dict_get(s->metadata, "service_name", NULL, 0);
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if (!title)
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title = av_dict_get(s->metadata, "title", NULL, 0);
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service_name = title ? title->value : DEFAULT_SERVICE_NAME;
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provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
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service_name = title ? title->value : DEFAULT_SERVICE_NAME;
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provider = av_dict_get(s->metadata, "service_provider", NULL, 0);
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provider_name = provider ? provider->value : DEFAULT_PROVIDER_NAME;
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service = mpegts_add_service(ts, ts->service_id, provider_name, service_name);
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service = mpegts_add_service(ts, ts->service_id,
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provider_name, service_name);
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service->pmt.write_packet = section_write_packet;
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service->pmt.opaque = s;
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service->pmt.cc = 15;
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service->pmt.opaque = s;
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service->pmt.cc = 15;
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ts->pat.pid = PAT_PID;
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ts->pat.cc = 15; // Initialize at 15 so that it wraps and be equal to 0 for the first packet we write
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ts->pat.pid = PAT_PID;
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/* Initialize at 15 so that it wraps and is equal to 0 for the
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* first packet we write. */
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ts->pat.cc = 15;
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ts->pat.write_packet = section_write_packet;
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ts->pat.opaque = s;
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ts->pat.opaque = s;
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ts->sdt.pid = SDT_PID;
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ts->sdt.cc = 15;
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ts->sdt.pid = SDT_PID;
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ts->sdt.cc = 15;
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ts->sdt.write_packet = section_write_packet;
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ts->sdt.opaque = s;
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ts->sdt.opaque = s;
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pids = av_malloc(s->nb_streams * sizeof(*pids));
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if (!pids)
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return AVERROR(ENOMEM);
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/* assign pids to each stream */
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for(i = 0;i < s->nb_streams; i++) {
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for (i = 0; i < s->nb_streams; i++) {
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st = s->streams[i];
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ts_st = av_mallocz(sizeof(MpegTSWriteStream));
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@ -512,7 +521,8 @@ static int mpegts_write_header(AVFormatContext *s)
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} else if (st->id < 0x1FFF) {
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ts_st->pid = st->id;
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} else {
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av_log(s, AV_LOG_ERROR, "Invalid stream id %d, must be less than 8191\n", st->id);
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av_log(s, AV_LOG_ERROR,
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"Invalid stream id %d, must be less than 8191\n", st->id);
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ret = AVERROR(EINVAL);
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goto fail;
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}
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@ -521,33 +531,35 @@ static int mpegts_write_header(AVFormatContext *s)
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ret = AVERROR(EINVAL);
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goto fail;
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}
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for (j = 0; j < i; j++)
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for (j = 0; j < i; j++) {
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if (pids[j] == ts_st->pid) {
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av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
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ret = AVERROR(EINVAL);
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goto fail;
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}
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pids[i] = ts_st->pid;
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ts_st->payload_pts = AV_NOPTS_VALUE;
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ts_st->payload_dts = AV_NOPTS_VALUE;
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}
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pids[i] = ts_st->pid;
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ts_st->payload_pts = AV_NOPTS_VALUE;
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ts_st->payload_dts = AV_NOPTS_VALUE;
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ts_st->first_pts_check = 1;
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ts_st->cc = 15;
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ts_st->cc = 15;
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/* update PCR pid by using the first video stream */
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if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
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service->pcr_pid == 0x1fff) {
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service->pcr_pid = ts_st->pid;
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pcr_st = st;
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pcr_st = st;
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}
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if (st->codec->codec_id == AV_CODEC_ID_AAC &&
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st->codec->extradata_size > 0)
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{
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st->codec->extradata_size > 0) {
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AVStream *ast;
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ts_st->amux = avformat_alloc_context();
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if (!ts_st->amux) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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ts_st->amux->oformat = av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts", NULL, NULL);
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ts_st->amux->oformat =
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av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts",
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NULL, NULL);
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if (!ts_st->amux->oformat) {
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ret = AVERROR(EINVAL);
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goto fail;
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@ -566,19 +578,19 @@ static int mpegts_write_header(AVFormatContext *s)
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/* if no video stream, use the first stream as PCR */
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if (service->pcr_pid == 0x1fff && s->nb_streams > 0) {
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pcr_st = s->streams[0];
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ts_st = pcr_st->priv_data;
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pcr_st = s->streams[0];
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ts_st = pcr_st->priv_data;
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service->pcr_pid = ts_st->pid;
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} else
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ts_st = pcr_st->priv_data;
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if (ts->mux_rate > 1) {
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service->pcr_packet_period = (ts->mux_rate * ts->pcr_period) /
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(TS_PACKET_SIZE * 8 * 1000);
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(TS_PACKET_SIZE * 8 * 1000);
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ts->sdt_packet_period = (ts->mux_rate * SDT_RETRANS_TIME) /
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(TS_PACKET_SIZE * 8 * 1000);
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(TS_PACKET_SIZE * 8 * 1000);
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ts->pat_packet_period = (ts->mux_rate * PAT_RETRANS_TIME) /
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(TS_PACKET_SIZE * 8 * 1000);
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(TS_PACKET_SIZE * 8 * 1000);
|
||||
|
||||
ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE);
|
||||
} else {
|
||||
@ -589,10 +601,10 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
if (!pcr_st->codec->frame_size) {
|
||||
av_log(s, AV_LOG_WARNING, "frame size not set\n");
|
||||
service->pcr_packet_period =
|
||||
pcr_st->codec->sample_rate/(10*512);
|
||||
pcr_st->codec->sample_rate / (10 * 512);
|
||||
} else {
|
||||
service->pcr_packet_period =
|
||||
pcr_st->codec->sample_rate/(10*pcr_st->codec->frame_size);
|
||||
pcr_st->codec->sample_rate / (10 * pcr_st->codec->frame_size);
|
||||
}
|
||||
} else {
|
||||
// max delta PCR 0.1s
|
||||
@ -604,15 +616,15 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
|
||||
// output a PCR as soon as possible
|
||||
service->pcr_packet_count = service->pcr_packet_period;
|
||||
ts->pat_packet_count = ts->pat_packet_period-1;
|
||||
ts->sdt_packet_count = ts->sdt_packet_period-1;
|
||||
ts->pat_packet_count = ts->pat_packet_period - 1;
|
||||
ts->sdt_packet_count = ts->sdt_packet_period - 1;
|
||||
|
||||
if (ts->mux_rate == 1)
|
||||
av_log(s, AV_LOG_VERBOSE, "muxrate VBR, ");
|
||||
else
|
||||
av_log(s, AV_LOG_VERBOSE, "muxrate %d, ", ts->mux_rate);
|
||||
av_log(s, AV_LOG_VERBOSE, "pcr every %d pkts, "
|
||||
"sdt every %d, pat/pmt every %d pkts\n",
|
||||
av_log(s, AV_LOG_VERBOSE,
|
||||
"pcr every %d pkts, sdt every %d, pat/pmt every %d pkts\n",
|
||||
service->pcr_packet_period,
|
||||
ts->sdt_packet_period, ts->pat_packet_period);
|
||||
|
||||
@ -620,11 +632,11 @@ static int mpegts_write_header(AVFormatContext *s)
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
fail:
|
||||
av_free(pids);
|
||||
for(i = 0;i < s->nb_streams; i++) {
|
||||
for (i = 0; i < s->nb_streams; i++) {
|
||||
MpegTSWriteStream *ts_st;
|
||||
st = s->streams[i];
|
||||
st = s->streams[i];
|
||||
ts_st = st->priv_data;
|
||||
if (ts_st) {
|
||||
av_freep(&ts_st->payload);
|
||||
@ -651,9 +663,8 @@ static void retransmit_si_info(AVFormatContext *s)
|
||||
if (++ts->pat_packet_count == ts->pat_packet_period) {
|
||||
ts->pat_packet_count = 0;
|
||||
mpegts_write_pat(s);
|
||||
for(i = 0; i < ts->nb_services; i++) {
|
||||
for (i = 0; i < ts->nb_services; i++)
|
||||
mpegts_write_pmt(s, ts->services[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -669,9 +680,9 @@ static int write_pcr_bits(uint8_t *buf, int64_t pcr)
|
||||
|
||||
*buf++ = pcr_high >> 25;
|
||||
*buf++ = pcr_high >> 17;
|
||||
*buf++ = pcr_high >> 9;
|
||||
*buf++ = pcr_high >> 1;
|
||||
*buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
|
||||
*buf++ = pcr_high >> 9;
|
||||
*buf++ = pcr_high >> 1;
|
||||
*buf++ = pcr_high << 7 | pcr_low >> 8 | 0x7e;
|
||||
*buf++ = pcr_low;
|
||||
|
||||
return 6;
|
||||
@ -683,7 +694,7 @@ static void mpegts_insert_null_packet(AVFormatContext *s)
|
||||
uint8_t *q;
|
||||
uint8_t buf[TS_PACKET_SIZE];
|
||||
|
||||
q = buf;
|
||||
q = buf;
|
||||
*q++ = 0x47;
|
||||
*q++ = 0x00 | 0x1f;
|
||||
*q++ = 0xff;
|
||||
@ -700,7 +711,7 @@ static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st)
|
||||
uint8_t *q;
|
||||
uint8_t buf[TS_PACKET_SIZE];
|
||||
|
||||
q = buf;
|
||||
q = buf;
|
||||
*q++ = 0x47;
|
||||
*q++ = ts_st->pid >> 8;
|
||||
*q++ = ts_st->pid;
|
||||
@ -721,12 +732,12 @@ static void write_pts(uint8_t *q, int fourbits, int64_t pts)
|
||||
{
|
||||
int val;
|
||||
|
||||
val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
|
||||
val = fourbits << 4 | (((pts >> 30) & 0x07) << 1) | 1;
|
||||
*q++ = val;
|
||||
val = (((pts >> 15) & 0x7fff) << 1) | 1;
|
||||
val = (((pts >> 15) & 0x7fff) << 1) | 1;
|
||||
*q++ = val >> 8;
|
||||
*q++ = val;
|
||||
val = (((pts) & 0x7fff) << 1) | 1;
|
||||
val = (((pts) & 0x7fff) << 1) | 1;
|
||||
*q++ = val >> 8;
|
||||
*q++ = val;
|
||||
}
|
||||
@ -764,11 +775,10 @@ static uint8_t *get_ts_payload_start(uint8_t *pkt)
|
||||
return pkt + 4;
|
||||
}
|
||||
|
||||
/* Add a pes header to the front of payload, and segment into an integer number of
|
||||
* ts packets. The final ts packet is padded using an over-sized adaptation header
|
||||
* to exactly fill the last ts packet.
|
||||
* NOTE: 'payload' contains a complete PES payload.
|
||||
*/
|
||||
/* Add a PES header to the front of the payload, and segment into an integer
|
||||
* number of TS packets. The final TS packet is padded using an oversized
|
||||
* adaptation header to exactly fill the last TS packet.
|
||||
* NOTE: 'payload' contains a complete PES payload. */
|
||||
static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
const uint8_t *payload, int payload_size,
|
||||
int64_t pts, int64_t dts, int key)
|
||||
@ -798,25 +808,26 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
}
|
||||
|
||||
if (ts->mux_rate > 1 && dts != AV_NOPTS_VALUE &&
|
||||
(dts - get_pcr(ts, s->pb)/300) > delay) {
|
||||
(dts - get_pcr(ts, s->pb) / 300) > delay) {
|
||||
/* pcr insert gets priority over null packet insert */
|
||||
if (write_pcr)
|
||||
mpegts_insert_pcr_only(s, st);
|
||||
else
|
||||
mpegts_insert_null_packet(s);
|
||||
continue; /* recalculate write_pcr and possibly retransmit si_info */
|
||||
/* recalculate write_pcr and possibly retransmit si_info */
|
||||
continue;
|
||||
}
|
||||
|
||||
/* prepare packet header */
|
||||
q = buf;
|
||||
q = buf;
|
||||
*q++ = 0x47;
|
||||
val = (ts_st->pid >> 8);
|
||||
val = (ts_st->pid >> 8);
|
||||
if (is_start)
|
||||
val |= 0x40;
|
||||
*q++ = val;
|
||||
*q++ = ts_st->pid;
|
||||
*q++ = val;
|
||||
*q++ = ts_st->pid;
|
||||
ts_st->cc = (ts_st->cc + 1) & 0xf;
|
||||
*q++ = 0x10 | ts_st->cc; // payload indicator + CC
|
||||
*q++ = 0x10 | ts_st->cc; // payload indicator + CC
|
||||
if (key && is_start && pts != AV_NOPTS_VALUE) {
|
||||
// set Random Access for key frames
|
||||
if (ts_st->pid == ts_st->service->pcr_pid)
|
||||
@ -831,7 +842,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
if (ts->mux_rate > 1)
|
||||
pcr = get_pcr(ts, s->pb);
|
||||
else
|
||||
pcr = (dts - delay)*300;
|
||||
pcr = (dts - delay) * 300;
|
||||
if (dts != AV_NOPTS_VALUE && dts < pcr / 300)
|
||||
av_log(s, AV_LOG_WARNING, "dts < pcr, TS is invalid\n");
|
||||
extend_af(buf, write_pcr_bits(q, pcr));
|
||||
@ -845,9 +856,9 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
*q++ = 0x01;
|
||||
private_code = 0;
|
||||
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
|
||||
if (st->codec->codec_id == AV_CODEC_ID_DIRAC) {
|
||||
if (st->codec->codec_id == AV_CODEC_ID_DIRAC)
|
||||
*q++ = 0xfd;
|
||||
} else
|
||||
else
|
||||
*q++ = 0xe0;
|
||||
} else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
|
||||
(st->codec->codec_id == AV_CODEC_ID_MP2 ||
|
||||
@ -856,31 +867,28 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
*q++ = 0xc0;
|
||||
} else {
|
||||
*q++ = 0xbd;
|
||||
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
|
||||
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
|
||||
private_code = 0x20;
|
||||
}
|
||||
}
|
||||
header_len = 0;
|
||||
flags = 0;
|
||||
flags = 0;
|
||||
if (pts != AV_NOPTS_VALUE) {
|
||||
header_len += 5;
|
||||
flags |= 0x80;
|
||||
flags |= 0x80;
|
||||
}
|
||||
if (dts != AV_NOPTS_VALUE && pts != AV_NOPTS_VALUE && dts != pts) {
|
||||
header_len += 5;
|
||||
flags |= 0x40;
|
||||
flags |= 0x40;
|
||||
}
|
||||
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
|
||||
st->codec->codec_id == AV_CODEC_ID_DIRAC) {
|
||||
/* set PES_extension_flag */
|
||||
pes_extension = 1;
|
||||
flags |= 0x01;
|
||||
flags |= 0x01;
|
||||
|
||||
/*
|
||||
* One byte for PES2 extension flag +
|
||||
* one byte for extension length +
|
||||
* one byte for extension id
|
||||
*/
|
||||
/* One byte for PES2 extension flag +
|
||||
* one byte for extension length +
|
||||
* one byte for extension id */
|
||||
header_len += 3;
|
||||
}
|
||||
len = payload_size + header_len + 3;
|
||||
@ -890,7 +898,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
len = 0;
|
||||
*q++ = len >> 8;
|
||||
*q++ = len;
|
||||
val = 0x80;
|
||||
val = 0x80;
|
||||
/* data alignment indicator is required for subtitle data */
|
||||
if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
|
||||
val |= 0x04;
|
||||
@ -907,12 +915,10 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
}
|
||||
if (pes_extension && st->codec->codec_id == AV_CODEC_ID_DIRAC) {
|
||||
flags = 0x01; /* set PES_extension_flag_2 */
|
||||
*q++ = flags;
|
||||
*q++ = 0x80 | 0x01; /* marker bit + extension length */
|
||||
/*
|
||||
* Set the stream id extension flag bit to 0 and
|
||||
* write the extended stream id
|
||||
*/
|
||||
*q++ = flags;
|
||||
*q++ = 0x80 | 0x01; /* marker bit + extension length */
|
||||
/* Set the stream ID extension flag bit to 0 and
|
||||
* write the extended stream ID. */
|
||||
*q++ = 0x00 | 0x60;
|
||||
}
|
||||
if (private_code != 0)
|
||||
@ -940,7 +946,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
/* add stuffing */
|
||||
memmove(buf + 4 + stuffing_len, buf + 4, header_len - 4);
|
||||
buf[3] |= 0x20;
|
||||
buf[4] = stuffing_len - 1;
|
||||
buf[4] = stuffing_len - 1;
|
||||
if (stuffing_len >= 2) {
|
||||
buf[5] = 0x00;
|
||||
memset(buf + 6, 0xff, stuffing_len - 2);
|
||||
@ -948,7 +954,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
|
||||
}
|
||||
}
|
||||
memcpy(buf + TS_PACKET_SIZE - len, payload, len);
|
||||
payload += len;
|
||||
payload += len;
|
||||
payload_size -= len;
|
||||
avio_write(s->pb, buf, TS_PACKET_SIZE);
|
||||
}
|
||||
@ -959,23 +965,24 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
{
|
||||
AVStream *st = s->streams[pkt->stream_index];
|
||||
int size = pkt->size;
|
||||
uint8_t *buf= pkt->data;
|
||||
uint8_t *data= NULL;
|
||||
uint8_t *buf = pkt->data;
|
||||
uint8_t *data = NULL;
|
||||
MpegTSWrite *ts = s->priv_data;
|
||||
MpegTSWriteStream *ts_st = st->priv_data;
|
||||
const uint64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE)*2;
|
||||
const uint64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) * 2;
|
||||
int64_t dts = AV_NOPTS_VALUE, pts = AV_NOPTS_VALUE;
|
||||
|
||||
if (ts->reemit_pat_pmt) {
|
||||
av_log(s, AV_LOG_WARNING, "resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
|
||||
av_log(s, AV_LOG_WARNING,
|
||||
"resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
|
||||
ts->reemit_pat_pmt = 0;
|
||||
ts->flags |= MPEGTS_FLAG_REEMIT_PAT_PMT;
|
||||
ts->flags |= MPEGTS_FLAG_REEMIT_PAT_PMT;
|
||||
}
|
||||
|
||||
if (ts->flags & MPEGTS_FLAG_REEMIT_PAT_PMT) {
|
||||
ts->pat_packet_count = ts->pat_packet_period - 1;
|
||||
ts->sdt_packet_count = ts->sdt_packet_period - 1;
|
||||
ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
|
||||
ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
|
||||
}
|
||||
|
||||
if (pkt->pts != AV_NOPTS_VALUE)
|
||||
@ -990,7 +997,7 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
ts_st->first_pts_check = 0;
|
||||
|
||||
if (st->codec->codec_id == AV_CODEC_ID_H264) {
|
||||
const uint8_t *p = buf, *buf_end = p+size;
|
||||
const uint8_t *p = buf, *buf_end = p + size;
|
||||
uint32_t state = -1;
|
||||
|
||||
if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001) {
|
||||
@ -1006,15 +1013,15 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
(state & 0x1f) != 5 && (state & 0x1f) != 1);
|
||||
|
||||
if ((state & 0x1f) != 9) { // AUD NAL
|
||||
data = av_malloc(pkt->size+6);
|
||||
data = av_malloc(pkt->size + 6);
|
||||
if (!data)
|
||||
return AVERROR(ENOMEM);
|
||||
memcpy(data+6, pkt->data, pkt->size);
|
||||
memcpy(data + 6, pkt->data, pkt->size);
|
||||
AV_WB32(data, 0x00000001);
|
||||
data[4] = 0x09;
|
||||
data[5] = 0xf0; // any slice type (0xe) + rbsp stop one bit
|
||||
buf = data;
|
||||
size = pkt->size+6;
|
||||
buf = data;
|
||||
size = pkt->size + 6;
|
||||
}
|
||||
} else if (st->codec->codec_id == AV_CODEC_ID_AAC) {
|
||||
if (pkt->size < 2) {
|
||||
@ -1027,13 +1034,14 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
|
||||
if (!ts_st->amux) {
|
||||
av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
|
||||
"and extradata missing\n");
|
||||
"and extradata missing\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
av_init_packet(&pkt2);
|
||||
pkt2.data = pkt->data;
|
||||
pkt2.size = pkt->size;
|
||||
|
||||
ret = avio_open_dyn_buf(&ts_st->amux->pb);
|
||||
if (ret < 0)
|
||||
return AVERROR(ENOMEM);
|
||||
@ -1045,15 +1053,16 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
av_free(data);
|
||||
return ret;
|
||||
}
|
||||
size = avio_close_dyn_buf(ts_st->amux->pb, &data);
|
||||
size = avio_close_dyn_buf(ts_st->amux->pb, &data);
|
||||
ts_st->amux->pb = NULL;
|
||||
buf = data;
|
||||
buf = data;
|
||||
}
|
||||
}
|
||||
|
||||
if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
|
||||
// for video and subtitle, write a single pes packet
|
||||
mpegts_write_pes(s, st, buf, size, pts, dts, pkt->flags & AV_PKT_FLAG_KEY);
|
||||
mpegts_write_pes(s, st, buf, size, pts, dts,
|
||||
pkt->flags & AV_PKT_FLAG_KEY);
|
||||
av_free(data);
|
||||
return 0;
|
||||
}
|
||||
@ -1074,8 +1083,8 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
|
||||
}
|
||||
|
||||
if (!ts_st->payload_size) {
|
||||
ts_st->payload_pts = pts;
|
||||
ts_st->payload_dts = dts;
|
||||
ts_st->payload_pts = pts;
|
||||
ts_st->payload_dts = dts;
|
||||
ts_st->payload_flags = pkt->flags;
|
||||
}
|
||||
|
||||
@ -1092,7 +1101,7 @@ static void mpegts_write_flush(AVFormatContext *s)
|
||||
int i;
|
||||
|
||||
/* flush current packets */
|
||||
for(i = 0; i < s->nb_streams; i++) {
|
||||
for (i = 0; i < s->nb_streams; i++) {
|
||||
AVStream *st = s->streams[i];
|
||||
MpegTSWriteStream *ts_st = st->priv_data;
|
||||
if (ts_st->payload_size > 0) {
|
||||
@ -1123,7 +1132,7 @@ static int mpegts_write_end(AVFormatContext *s)
|
||||
|
||||
mpegts_write_flush(s);
|
||||
|
||||
for(i = 0; i < s->nb_streams; i++) {
|
||||
for (i = 0; i < s->nb_streams; i++) {
|
||||
AVStream *st = s->streams[i];
|
||||
MpegTSWriteStream *ts_st = st->priv_data;
|
||||
av_freep(&ts_st->payload);
|
||||
@ -1133,7 +1142,7 @@ static int mpegts_write_end(AVFormatContext *s)
|
||||
}
|
||||
}
|
||||
|
||||
for(i = 0; i < ts->nb_services; i++) {
|
||||
for (i = 0; i < ts->nb_services; i++) {
|
||||
service = ts->services[i];
|
||||
av_freep(&service->provider_name);
|
||||
av_freep(&service->name);
|
||||
@ -1146,52 +1155,63 @@ static int mpegts_write_end(AVFormatContext *s)
|
||||
|
||||
static const AVOption options[] = {
|
||||
{ "mpegts_transport_stream_id", "Set transport_stream_id field.",
|
||||
offsetof(MpegTSWrite, transport_stream_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, transport_stream_id), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "mpegts_original_network_id", "Set original_network_id field.",
|
||||
offsetof(MpegTSWrite, original_network_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, original_network_id), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "mpegts_service_id", "Set service_id field.",
|
||||
offsetof(MpegTSWrite, service_id), AV_OPT_TYPE_INT, {.i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, service_id), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
|
||||
offsetof(MpegTSWrite, pmt_start_pid), AV_OPT_TYPE_INT, {.i64 = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, pmt_start_pid), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "mpegts_start_pid", "Set the first pid.",
|
||||
offsetof(MpegTSWrite, start_pid), AV_OPT_TYPE_INT, {.i64 = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "muxrate", NULL, offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT, {.i64 = 1}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, start_pid), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "muxrate", NULL,
|
||||
offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 1 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "pes_payload_size", "Minimum PES packet payload in bytes",
|
||||
offsetof(MpegTSWrite, pes_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT_PES_PAYLOAD_SIZE}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
{ "mpegts_flags", "MPEG-TS muxing flags", offsetof(MpegTSWrite, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, 0, INT_MAX,
|
||||
offsetof(MpegTSWrite, pes_payload_size), AV_OPT_TYPE_INT,
|
||||
{ .i64 = DEFAULT_PES_PAYLOAD_SIZE }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "mpegts_flags", "MPEG-TS muxing flags",
|
||||
offsetof(MpegTSWrite, flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, INT_MAX,
|
||||
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
|
||||
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
|
||||
0, AV_OPT_TYPE_CONST, {.i64 = MPEGTS_FLAG_REEMIT_PAT_PMT}, 0, INT_MAX,
|
||||
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
|
||||
0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_REEMIT_PAT_PMT }, 0, INT_MAX,
|
||||
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
|
||||
{ "latm", "Use LATM packetization for AAC",
|
||||
0, AV_OPT_TYPE_CONST, {.i64 = MPEGTS_FLAG_AAC_LATM}, 0, INT_MAX,
|
||||
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
|
||||
0, AV_OPT_TYPE_CONST, { .i64 = MPEGTS_FLAG_AAC_LATM }, 0, INT_MAX,
|
||||
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
|
||||
// backward compatibility
|
||||
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
|
||||
offsetof(MpegTSWrite, reemit_pat_pmt), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
|
||||
offsetof(MpegTSWrite, reemit_pat_pmt), AV_OPT_TYPE_INT,
|
||||
{ .i64 = 0 }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ "pcr_period", "PCR retransmission time",
|
||||
offsetof(MpegTSWrite, pcr_period), AV_OPT_TYPE_INT, { .i64 = PCR_RETRANS_TIME }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
offsetof(MpegTSWrite, pcr_period), AV_OPT_TYPE_INT,
|
||||
{ .i64 = PCR_RETRANS_TIME }, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
|
||||
{ NULL },
|
||||
};
|
||||
|
||||
static const AVClass mpegts_muxer_class = {
|
||||
.class_name = "MPEGTS muxer",
|
||||
.item_name = av_default_item_name,
|
||||
.option = options,
|
||||
.version = LIBAVUTIL_VERSION_INT,
|
||||
.class_name = "MPEGTS muxer",
|
||||
.item_name = av_default_item_name,
|
||||
.option = options,
|
||||
.version = LIBAVUTIL_VERSION_INT,
|
||||
};
|
||||
|
||||
AVOutputFormat ff_mpegts_muxer = {
|
||||
.name = "mpegts",
|
||||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
|
||||
.mime_type = "video/x-mpegts",
|
||||
.extensions = "ts,m2t",
|
||||
.priv_data_size = sizeof(MpegTSWrite),
|
||||
.audio_codec = AV_CODEC_ID_MP2,
|
||||
.video_codec = AV_CODEC_ID_MPEG2VIDEO,
|
||||
.write_header = mpegts_write_header,
|
||||
.write_packet = mpegts_write_packet,
|
||||
.write_trailer = mpegts_write_end,
|
||||
.flags = AVFMT_ALLOW_FLUSH,
|
||||
.priv_class = &mpegts_muxer_class,
|
||||
.name = "mpegts",
|
||||
.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
|
||||
.mime_type = "video/x-mpegts",
|
||||
.extensions = "ts,m2t",
|
||||
.priv_data_size = sizeof(MpegTSWrite),
|
||||
.audio_codec = AV_CODEC_ID_MP2,
|
||||
.video_codec = AV_CODEC_ID_MPEG2VIDEO,
|
||||
.write_header = mpegts_write_header,
|
||||
.write_packet = mpegts_write_packet,
|
||||
.write_trailer = mpegts_write_end,
|
||||
.flags = AVFMT_ALLOW_FLUSH,
|
||||
.priv_class = &mpegts_muxer_class,
|
||||
};
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user