#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
+#include "libavcodec/ac3_parser_internal.h"
#include "libavcodec/internal.h"
#include "avformat.h"
MpegTSSection pat; /* MPEG-2 PAT table */
MpegTSSection sdt; /* MPEG-2 SDT table context */
MpegTSService **services;
+ AVPacket *pkt;
int64_t sdt_period; /* SDT period in PCR time base */
int64_t pat_period; /* PAT/PMT period in PCR time base */
int nb_services;
int64_t first_pcr;
+ int first_dts_checked;
int64_t next_pcr;
int mux_rate; ///< set to 1 when VBR
int pes_payload_size;
+ int64_t total_size;
int transport_stream_id;
int original_network_id;
int cc;
int discontinuity;
int payload_size;
- int first_pts_check; ///< first pts check needed
+ int first_timestamp_checked; ///< first pts/dts check needed
int prev_payload_key;
int64_t payload_pts;
int64_t payload_dts;
/* For Opus */
int opus_queued_samples;
int opus_pending_trim_start;
+
+ DVBAC3Descriptor *dvb_ac3_desc;
} MpegTSWriteStream;
static void mpegts_write_pat(AVFormatContext *s)
static void put_registration_descriptor(uint8_t **q_ptr, uint32_t tag)
{
uint8_t *q = *q_ptr;
- *q++ = 0x05; /* MPEG-2 registration descriptor*/
+ *q++ = REGISTRATION_DESCRIPTOR;
*q++ = 4;
*q++ = tag;
*q++ = tag >> 8;
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL, 0);
+ const char default_language[] = "und";
+ const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
+ enum AVCodecID codec_id = st->codecpar->codec_id;
if (s->nb_programs) {
int k, found = 0;
/* write optional descriptors here */
switch (st->codecpar->codec_type) {
case AVMEDIA_TYPE_AUDIO:
- if (st->codecpar->codec_id==AV_CODEC_ID_AC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
- *q++=0x6a; // AC3 descriptor see A038 DVB SI
- *q++=1; // 1 byte, all flags sets to 0
- *q++=0; // omit all fields...
- }
- if (st->codecpar->codec_id==AV_CODEC_ID_EAC3 && (ts->flags & MPEGTS_FLAG_SYSTEM_B)) {
- *q++=0x7a; // EAC3 descriptor see A038 DVB SI
- *q++=1; // 1 byte, all flags sets to 0
- *q++=0; // omit all fields...
+ if (codec_id == AV_CODEC_ID_AC3)
+ put_registration_descriptor(&q, MKTAG('A', 'C', '-', '3'));
+ if (codec_id == AV_CODEC_ID_EAC3)
+ put_registration_descriptor(&q, MKTAG('E', 'A', 'C', '3'));
+ if (ts->flags & MPEGTS_FLAG_SYSTEM_B) {
+ if (codec_id == AV_CODEC_ID_AC3) {
+ DVBAC3Descriptor *dvb_ac3_desc = ts_st->dvb_ac3_desc;
+
+ *q++=0x6a; // AC3 descriptor see A038 DVB SI
+ if (dvb_ac3_desc) {
+ int len = 1 +
+ !!(dvb_ac3_desc->component_type_flag) +
+ !!(dvb_ac3_desc->bsid_flag) +
+ !!(dvb_ac3_desc->mainid_flag) +
+ !!(dvb_ac3_desc->asvc_flag);
+
+ *q++ = len;
+ *q++ = dvb_ac3_desc->component_type_flag << 7 | dvb_ac3_desc->bsid_flag << 6 |
+ dvb_ac3_desc->mainid_flag << 5 | dvb_ac3_desc->asvc_flag << 4;
+
+ if (dvb_ac3_desc->component_type_flag) *q++ = dvb_ac3_desc->component_type;
+ if (dvb_ac3_desc->bsid_flag) *q++ = dvb_ac3_desc->bsid;
+ if (dvb_ac3_desc->mainid_flag) *q++ = dvb_ac3_desc->mainid;
+ if (dvb_ac3_desc->asvc_flag) *q++ = dvb_ac3_desc->asvc;
+ } else {
+ *q++=1; // 1 byte, all flags sets to 0
+ *q++=0; // omit all fields...
+ }
+ } else if (codec_id == AV_CODEC_ID_EAC3) {
+ *q++=0x7a; // EAC3 descriptor see A038 DVB SI
+ *q++=1; // 1 byte, all flags sets to 0
+ *q++=0; // omit all fields...
+ }
}
- if (st->codecpar->codec_id==AV_CODEC_ID_S302M)
+ if (codec_id == AV_CODEC_ID_S302M)
put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
- if (st->codecpar->codec_id==AV_CODEC_ID_OPUS) {
+ if (codec_id == AV_CODEC_ID_OPUS) {
/* 6 bytes registration descriptor, 4 bytes Opus audio descriptor */
if (q - data > SECTION_LENGTH - 6 - 4) {
err = 1;
}
}
- if (lang) {
- char *p;
- char *next = lang->value;
+ if (language != default_language ||
+ st->disposition & (AV_DISPOSITION_CLEAN_EFFECTS |
+ AV_DISPOSITION_HEARING_IMPAIRED |
+ AV_DISPOSITION_VISUAL_IMPAIRED)) {
+ const char *p, *next;
uint8_t *len_ptr;
- *q++ = 0x0a; /* ISO 639 language descriptor */
+ *q++ = ISO_639_LANGUAGE_DESCRIPTOR;
len_ptr = q++;
*len_ptr = 0;
- for (p = lang->value; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
+ for (p = next = language; next && *len_ptr < 255 / 4 * 4; p = next + 1) {
if (q - data > SECTION_LENGTH - 4) {
err = 1;
break;
}
break;
case AVMEDIA_TYPE_SUBTITLE:
- {
- const char default_language[] = "und";
- const char *language = lang && strlen(lang->value) >= 3 ? lang->value : default_language;
-
- if (st->codecpar->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
+ if (codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
uint8_t *len_ptr;
int extradata_copied = 0;
}
*len_ptr = q - len_ptr - 1;
- } else if (st->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT) {
+ } else if (codec_id == AV_CODEC_ID_DVB_TELETEXT) {
uint8_t *len_ptr = NULL;
int extradata_copied = 0;
*len_ptr = q - len_ptr - 1;
}
- }
break;
case AVMEDIA_TYPE_VIDEO:
if (stream_type == STREAM_TYPE_VIDEO_DIRAC) {
}
break;
case AVMEDIA_TYPE_DATA:
- if (st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV) {
+ if (codec_id == AV_CODEC_ID_SMPTE_KLV) {
put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A'));
- } else if (st->codecpar->codec_id == AV_CODEC_ID_TIMED_ID3) {
+ } else if (codec_id == AV_CODEC_ID_TIMED_ID3) {
const char *tag = "ID3 ";
- *q++ = 0x26; /* metadata descriptor */
+ *q++ = METADATA_DESCRIPTOR;
*q++ = 13;
put16(&q, 0xffff); /* metadata application format */
putbuf(&q, tag, strlen(tag));
return 0;
}
-static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb)
+static int64_t get_pcr(const MpegTSWrite *ts)
{
- return av_rescale(avio_tell(pb) + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
+ return av_rescale(ts->total_size + 11, 8 * PCR_TIME_BASE, ts->mux_rate) +
ts->first_pcr;
}
{
MpegTSWrite *ts = s->priv_data;
if (ts->m2ts_mode) {
- int64_t pcr = get_pcr(s->priv_data, s->pb);
+ int64_t pcr = get_pcr(s->priv_data);
uint32_t tp_extra_header = pcr % 0x3fffffff;
tp_extra_header = AV_RB32(&tp_extra_header);
avio_write(s->pb, (unsigned char *) &tp_extra_header,
sizeof(tp_extra_header));
}
avio_write(s->pb, packet, TS_PACKET_SIZE);
+ ts->total_size += TS_PACKET_SIZE;
}
static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
ts->sdt.write_packet = section_write_packet;
ts->sdt.opaque = s;
+ ts->pkt = av_packet_alloc();
+ if (!ts->pkt)
+ return AVERROR(ENOMEM);
+
/* assign pids to each stream */
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
}
ts_st->payload_pts = AV_NOPTS_VALUE;
ts_st->payload_dts = AV_NOPTS_VALUE;
- ts_st->first_pts_check = 1;
ts_st->cc = 15;
ts_st->discontinuity = ts->flags & MPEGTS_FLAG_DISCONT;
if (st->codecpar->codec_id == AV_CODEC_ID_AAC &&
}
/* PCR coded into 6 bytes */
- q += write_pcr_bits(q, get_pcr(ts, s->pb));
+ q += write_pcr_bits(q, get_pcr(ts));
/* stuffing bytes */
memset(q, 0xFF, TS_PACKET_SIZE - (q - buf));
while (payload_size > 0) {
int64_t pcr = AV_NOPTS_VALUE;
if (ts->mux_rate > 1)
- pcr = get_pcr(ts, s->pb);
+ pcr = get_pcr(ts);
else if (dts != AV_NOPTS_VALUE)
pcr = (dts - delay) * 300;
write_pcr = 0;
if (ts->mux_rate > 1) {
/* Send PCR packets for all PCR streams if needed */
- pcr = get_pcr(ts, s->pb);
+ pcr = get_pcr(ts);
if (pcr >= ts->next_pcr) {
int64_t next_pcr = INT64_MAX;
for (int i = 0; i < s->nb_streams; i++) {
ts_st2->last_pcr = FFMAX(pcr - ts_st2->pcr_period, ts_st2->last_pcr + ts_st2->pcr_period);
if (st2 != st) {
mpegts_insert_pcr_only(s, st2);
- pcr = get_pcr(ts, s->pb);
+ pcr = get_pcr(ts);
} else {
write_pcr = 1;
}
const int64_t max_audio_delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE) / 2;
int64_t dts = pkt->dts, pts = pkt->pts;
int opus_samples = 0;
- int side_data_size;
+ size_t side_data_size;
uint8_t *side_data = NULL;
int stream_id = -1;
stream_id = side_data[0];
if (ts->copyts < 1) {
+ if (!ts->first_dts_checked && dts != AV_NOPTS_VALUE) {
+ ts->first_pcr += dts * 300;
+ ts->first_dts_checked = 1;
+ }
+
if (pts != AV_NOPTS_VALUE)
pts += delay;
if (dts != AV_NOPTS_VALUE)
dts += delay;
}
- if (ts_st->first_pts_check && pts == AV_NOPTS_VALUE) {
- av_log(s, AV_LOG_ERROR, "first pts value must be set\n");
+ if (!ts_st->first_timestamp_checked && (pts == AV_NOPTS_VALUE || dts == AV_NOPTS_VALUE)) {
+ av_log(s, AV_LOG_ERROR, "first pts and dts value must be set\n");
return AVERROR_INVALIDDATA;
}
- ts_st->first_pts_check = 0;
+ ts_st->first_timestamp_checked = 1;
if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
const uint8_t *p = buf, *buf_end = p + size;
}
if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) {
int ret;
- AVPacket pkt2;
+ AVPacket *pkt2 = ts->pkt;
if (!ts_st->amux) {
av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
"and extradata missing\n");
} else {
- av_init_packet(&pkt2);
- pkt2.data = pkt->data;
- pkt2.size = pkt->size;
- av_assert0(pkt->dts != AV_NOPTS_VALUE);
- pkt2.dts = av_rescale_q(pkt->dts, st->time_base, ts_st->amux->streams[0]->time_base);
-
- ret = avio_open_dyn_buf(&ts_st->amux->pb);
- if (ret < 0)
- return ret;
-
- ret = av_write_frame(ts_st->amux, &pkt2);
- if (ret < 0) {
- ffio_free_dyn_buf(&ts_st->amux->pb);
- return ret;
- }
- size = avio_close_dyn_buf(ts_st->amux->pb, &data);
- ts_st->amux->pb = NULL;
- buf = data;
+ av_packet_unref(pkt2);
+ pkt2->data = pkt->data;
+ pkt2->size = pkt->size;
+ av_assert0(pkt->dts != AV_NOPTS_VALUE);
+ pkt2->dts = av_rescale_q(pkt->dts, st->time_base, ts_st->amux->streams[0]->time_base);
+
+ ret = avio_open_dyn_buf(&ts_st->amux->pb);
+ if (ret < 0)
+ return ret;
+
+ ret = av_write_frame(ts_st->amux, pkt2);
+ if (ret < 0) {
+ ffio_free_dyn_buf(&ts_st->amux->pb);
+ return ret;
+ }
+ size = avio_close_dyn_buf(ts_st->amux->pb, &data);
+ ts_st->amux->pb = NULL;
+ buf = data;
}
}
} else if (st->codecpar->codec_id == AV_CODEC_ID_HEVC) {
/* Add Opus control header */
if ((AV_RB16(pkt->data) >> 5) != 0x3ff) {
uint8_t *side_data;
- int side_data_size;
+ size_t side_data_size;
int i, n;
int ctrl_header_size;
int trim_start = 0, trim_end = 0;
* need to count the samples of that too! */
av_log(s, AV_LOG_WARNING, "Got MPEG-TS formatted Opus data, unhandled");
}
+ } else if (st->codecpar->codec_id == AV_CODEC_ID_AC3 && !ts_st->dvb_ac3_desc) {
+ AC3HeaderInfo *hdr = NULL;
+
+ if (avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size) >= 0) {
+ uint8_t number_of_channels_flag;
+ uint8_t service_type_flag;
+ uint8_t full_service_flag = 1;
+ DVBAC3Descriptor *dvb_ac3_desc;
+
+ dvb_ac3_desc = av_mallocz(sizeof(*dvb_ac3_desc));
+ if (!dvb_ac3_desc) {
+ av_free(hdr);
+ return AVERROR(ENOMEM);
+ }
+
+ service_type_flag = hdr->bitstream_mode;
+ switch (hdr->channel_mode) {
+ case AC3_CHMODE_DUALMONO:
+ number_of_channels_flag = 1;
+ break;
+ case AC3_CHMODE_MONO:
+ number_of_channels_flag = 0;
+ break;
+ case AC3_CHMODE_STEREO:
+ if (hdr->dolby_surround_mode == AC3_DSURMOD_ON)
+ number_of_channels_flag = 3;
+ else
+ number_of_channels_flag = 2;
+ break;
+ case AC3_CHMODE_3F:
+ case AC3_CHMODE_2F1R:
+ case AC3_CHMODE_3F1R:
+ case AC3_CHMODE_2F2R:
+ case AC3_CHMODE_3F2R:
+ number_of_channels_flag = 4;
+ break;
+ default: /* reserved */
+ number_of_channels_flag = 7;
+ break;
+ }
+
+ if (service_type_flag == 1 || service_type_flag == 4 ||
+ (service_type_flag == 7 && !number_of_channels_flag))
+ full_service_flag = 0;
+
+ dvb_ac3_desc->component_type_flag = 1;
+ dvb_ac3_desc->component_type = (full_service_flag << 6) |
+ ((service_type_flag & 0x7) << 3) |
+ (number_of_channels_flag & 0x7);
+ dvb_ac3_desc->bsid_flag = 1;
+ dvb_ac3_desc->bsid = hdr->bitstream_id;
+ dvb_ac3_desc->mainid_flag = 0;
+ dvb_ac3_desc->asvc_flag = 0;
+
+ ts_st->dvb_ac3_desc = dvb_ac3_desc;
+ }
+ av_free(hdr);
}
if (ts_st->payload_size && (ts_st->payload_size + size > ts->pes_payload_size ||
MpegTSService *service;
int i;
+ av_packet_free(&ts->pkt);
+
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
if (ts_st) {
+ av_freep(&ts_st->dvb_ac3_desc);
av_freep(&ts_st->payload);
if (ts_st->amux) {
avformat_free_context(ts_st->amux);
.version = LIBAVUTIL_VERSION_INT,
};
-AVOutputFormat ff_mpegts_muxer = {
+const AVOutputFormat ff_mpegts_muxer = {
.name = "mpegts",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
.mime_type = "video/MP2T",
projects / ffmpeg / blobdiff