diff options
Diffstat (limited to 'libavformat/mpegtsenc.c')
| -rw-r--r-- | libavformat/mpegtsenc.c | 245 |
1 files changed, 183 insertions, 62 deletions
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c index 8efd93ef31..1e2d5ccd10 100644 --- a/libavformat/mpegtsenc.c +++ b/libavformat/mpegtsenc.c @@ -2,20 +2,20 @@ * MPEG2 transport stream (aka DVB) muxer * Copyright (c) 2003 Fabrice Bellard * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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 2.1 of the License, or (at your option) any later version. * - * Libav 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -25,6 +25,7 @@ #include "libavutil/intreadwrite.h" #include "libavutil/mathematics.h" #include "libavutil/opt.h" +#include "libavutil/avassert.h" #include "libavcodec/internal.h" #include "avformat.h" #include "internal.h" @@ -76,12 +77,15 @@ typedef struct MpegTSWrite { int pmt_start_pid; int start_pid; + int m2ts_mode; int reemit_pat_pmt; // backward compatibility #define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01 #define MPEGTS_FLAG_AAC_LATM 0x02 int flags; + int copyts; + int tables_version; } MpegTSWrite; /* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */ @@ -96,9 +100,12 @@ static const AVOption options[] = { { "mpegts_service_id", "Set service_id field.", 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 }, 0x0010, 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}, + {"mpegts_m2ts_mode", "Enable m2ts mode.", + offsetof(MpegTSWrite, m2ts_mode), AV_OPT_TYPE_INT, {.i64 = -1 }, + -1,1, 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}, @@ -113,6 +120,10 @@ static const AVOption options[] = { // 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}, + { "mpegts_copyts", "don't offset dts/pts", + offsetof(MpegTSWrite, copyts), AV_OPT_TYPE_INT, {.i64=-1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM}, + { "tables_version", "set PAT, PMT and SDT version", + offsetof(MpegTSWrite, tables_version), AV_OPT_TYPE_INT, {.i64=0}, 0, 31, AV_OPT_FLAG_ENCODING_PARAM}, { NULL }, }; @@ -191,7 +202,7 @@ static int mpegts_write_section1(MpegTSSection *s, int tid, int id, tot_len = 3 + 5 + len + 4; /* check if not too big */ if (tot_len > 1024) - return -1; + return AVERROR_INVALIDDATA; q = section; *q++ = tid; @@ -209,7 +220,7 @@ static int mpegts_write_section1(MpegTSSection *s, int tid, int id, /*********************************************/ /* mpegts writer */ -#define DEFAULT_PROVIDER_NAME "Libav" +#define DEFAULT_PROVIDER_NAME "FFmpeg" #define DEFAULT_SERVICE_NAME "Service01" /* we retransmit the SI info at this rate */ @@ -223,6 +234,7 @@ typedef struct MpegTSWriteStream { int cc; int payload_size; int first_pts_check; ///< first pts check needed + int prev_payload_key; int64_t payload_pts; int64_t payload_dts; int payload_flags; @@ -243,7 +255,7 @@ static void mpegts_write_pat(AVFormatContext *s) put16(&q, service->sid); put16(&q, 0xe000 | service->pmt.pid); } - mpegts_write_section1(&ts->pat, PAT_TID, ts->tsid, 0, 0, 0, + mpegts_write_section1(&ts->pat, PAT_TID, ts->tsid, ts->tables_version, 0, 0, data, q - data); } @@ -311,6 +323,20 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service) /* write optional descriptors here */ switch(st->codec->codec_type) { case AVMEDIA_TYPE_AUDIO: + if(st->codec->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->codec->codec_id==AV_CODEC_ID_S302M){ + *q++ = 0x05; /* MPEG-2 registration descriptor*/ + *q++ = 4; + *q++ = 'B'; + *q++ = 'S'; + *q++ = 'S'; + *q++ = 'D'; + } + if (lang) { char *p; char *next = lang->value; @@ -374,13 +400,23 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service) *q++ = 'c'; } break; + case AVMEDIA_TYPE_DATA: + if (st->codec->codec_id == AV_CODEC_ID_SMPTE_KLV) { + *q++ = 0x05; /* MPEG-2 registration descriptor */ + *q++ = 4; + *q++ = 'K'; + *q++ = 'L'; + *q++ = 'V'; + *q++ = 'A'; + } + break; } val = 0xf000 | (q - desc_length_ptr - 2); desc_length_ptr[0] = val >> 8; desc_length_ptr[1] = val; } - mpegts_write_section1(&service->pmt, PMT_TID, service->sid, 0, 0, 0, + mpegts_write_section1(&service->pmt, PMT_TID, service->sid, ts->tables_version, 0, 0, data, q - data); } @@ -435,7 +471,7 @@ static void mpegts_write_sdt(AVFormatContext *s) desc_list_len_ptr[0] = val >> 8; desc_list_len_ptr[1] = val; } - mpegts_write_section1(&ts->sdt, SDT_TID, ts->tsid, 0, 0, 0, + mpegts_write_section1(&ts->sdt, SDT_TID, ts->tsid, ts->tables_version, 0, 0, data, q - data); } @@ -458,9 +494,28 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts, return service; } +static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb) +{ + return av_rescale(avio_tell(pb) + 11, 8 * PCR_TIME_BASE, ts->mux_rate) + + ts->first_pcr; +} + +static void mpegts_prefix_m2ts_header(AVFormatContext *s) +{ + MpegTSWrite *ts = s->priv_data; + if (ts->m2ts_mode) { + int64_t pcr = get_pcr(s->priv_data, s->pb); + 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)); + } +} + static void section_write_packet(MpegTSSection *s, const uint8_t *packet) { AVFormatContext *ctx = s->opaque; + mpegts_prefix_m2ts_header(ctx); avio_write(ctx->pb, packet, TS_PACKET_SIZE); } @@ -601,9 +656,10 @@ static int mpegts_write_header(AVFormatContext *s) ts->pat_packet_period = (ts->mux_rate * PAT_RETRANS_TIME) / (TS_PACKET_SIZE * 8 * 1000); - ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE); + if(ts->copyts < 1) + ts->first_pcr = av_rescale(s->max_delay, PCR_TIME_BASE, AV_TIME_BASE); } else { - /* Arbitrary values, PAT/PMT could be written on key frames */ + /* Arbitrary values, PAT/PMT will also be written on video key frames */ ts->sdt_packet_period = 200; ts->pat_packet_period = 40; if (pcr_st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { @@ -620,6 +676,8 @@ static int mpegts_write_header(AVFormatContext *s) service->pcr_packet_period = pcr_st->codec->time_base.den/(10*pcr_st->codec->time_base.num); } + if(!service->pcr_packet_period) + service->pcr_packet_period = 1; } // output a PCR as soon as possible @@ -636,6 +694,14 @@ static int mpegts_write_header(AVFormatContext *s) service->pcr_packet_period, ts->sdt_packet_period, ts->pat_packet_period); + if (ts->m2ts_mode == -1) { + if (av_match_ext(s->filename, "m2ts")) { + ts->m2ts_mode = 1; + } else { + ts->m2ts_mode = 0; + } + } + avio_flush(s->pb); return 0; @@ -659,7 +725,7 @@ static int mpegts_write_header(AVFormatContext *s) } /* send SDT, PAT and PMT tables regulary */ -static void retransmit_si_info(AVFormatContext *s) +static void retransmit_si_info(AVFormatContext *s, int force_pat) { MpegTSWrite *ts = s->priv_data; int i; @@ -668,7 +734,7 @@ static void retransmit_si_info(AVFormatContext *s) ts->sdt_packet_count = 0; mpegts_write_sdt(s); } - if (++ts->pat_packet_count == ts->pat_packet_period) { + if (++ts->pat_packet_count == ts->pat_packet_period || force_pat) { ts->pat_packet_count = 0; mpegts_write_pat(s); for(i = 0; i < ts->nb_services; i++) { @@ -677,12 +743,6 @@ static void retransmit_si_info(AVFormatContext *s) } } -static int64_t get_pcr(const MpegTSWrite *ts, AVIOContext *pb) -{ - return av_rescale(avio_tell(pb) + 11, 8 * PCR_TIME_BASE, ts->mux_rate) + - ts->first_pcr; -} - static int write_pcr_bits(uint8_t *buf, int64_t pcr) { int64_t pcr_low = pcr % 300, pcr_high = pcr / 300; @@ -709,6 +769,7 @@ static void mpegts_insert_null_packet(AVFormatContext *s) *q++ = 0xff; *q++ = 0x10; memset(q, 0x0FF, TS_PACKET_SIZE - (q - buf)); + mpegts_prefix_m2ts_header(s); avio_write(s->pb, buf, TS_PACKET_SIZE); } @@ -734,6 +795,7 @@ static void mpegts_insert_pcr_only(AVFormatContext *s, AVStream *st) /* stuffing bytes */ memset(q, 0xFF, TS_PACKET_SIZE - (q - buf)); + mpegts_prefix_m2ts_header(s); avio_write(s->pb, buf, TS_PACKET_SIZE); } @@ -755,7 +817,7 @@ static void write_pts(uint8_t *q, int fourbits, int64_t pts) static void set_af_flag(uint8_t *pkt, int flag) { // expect at least one flag to set - assert(flag); + av_assert0(flag); if ((pkt[3] & 0x20) == 0) { // no AF yet, set adaptation field flag @@ -771,7 +833,7 @@ static void set_af_flag(uint8_t *pkt, int flag) static void extend_af(uint8_t *pkt, int size) { // expect already existing adaptation field - assert(pkt[3] & 0x20); + av_assert0(pkt[3] & 0x20); pkt[4] += size; } @@ -797,14 +859,16 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, MpegTSWrite *ts = s->priv_data; uint8_t buf[TS_PACKET_SIZE]; uint8_t *q; - int val, is_start, len, header_len, write_pcr, private_code, flags; + int val, is_start, len, header_len, write_pcr, is_dvb_subtitle, flags; int afc_len, stuffing_len; int64_t pcr = -1; /* avoid warning */ int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE); + int force_pat = st->codec->codec_type == AVMEDIA_TYPE_VIDEO && key && !ts_st->prev_payload_key; is_start = 1; while (payload_size > 0) { - retransmit_si_info(s); + retransmit_si_info(s, force_pat); + force_pat = 0; write_pcr = 0; if (ts_st->pid == ts_st->service->pcr_pid) { @@ -863,7 +927,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, *q++ = 0x00; *q++ = 0x00; *q++ = 0x01; - private_code = 0; + is_dvb_subtitle = 0; if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { if (st->codec->codec_id == AV_CODEC_ID_DIRAC) { *q++ = 0xfd; @@ -874,10 +938,15 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, st->codec->codec_id == AV_CODEC_ID_MP3 || st->codec->codec_id == AV_CODEC_ID_AAC)) { *q++ = 0xc0; + } else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && + st->codec->codec_id == AV_CODEC_ID_AC3 && + ts->m2ts_mode) { + *q++ = 0xfd; } else { *q++ = 0xbd; - if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) { - private_code = 0x20; + if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE && + st->codec->codec_id == AV_CODEC_ID_DVB_SUBTITLE) { + is_dvb_subtitle = 1; } } header_len = 0; @@ -903,16 +972,30 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, */ header_len += 3; } + /* for Blu-ray AC3 Audio the PES Extension flag should be as follow + * otherwise it will not play sound on blu-ray + */ + if (ts->m2ts_mode && + st->codec->codec_type == AVMEDIA_TYPE_AUDIO && + st->codec->codec_id == AV_CODEC_ID_AC3) { + /* set PES_extension_flag */ + pes_extension = 1; + flags |= 0x01; + header_len += 3; + } len = payload_size + header_len + 3; - if (private_code != 0) - len++; + /* 3 extra bytes should be added to DVB subtitle payload: 0x20 0x00 at the beginning and trailing 0xff */ + if (is_dvb_subtitle) { + len += 3; + payload_size++; + } if (len > 0xffff) len = 0; *q++ = len >> 8; *q++ = len; val = 0x80; - /* data alignment indicator is required for subtitle data */ - if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) + /* data alignment indicator is required for subtitle and data streams */ + if (st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE || st->codec->codec_type == AVMEDIA_TYPE_DATA) val |= 0x04; *q++ = val; *q++ = flags; @@ -935,8 +1018,24 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, */ *q++ = 0x00 | 0x60; } - if (private_code != 0) - *q++ = private_code; + /* For Blu-ray AC3 Audio Setting extended flags */ + if (ts->m2ts_mode && + pes_extension && + st->codec->codec_id == AV_CODEC_ID_AC3) { + flags = 0x01; /* set PES_extension_flag_2 */ + *q++ = flags; + *q++ = 0x80 | 0x01; /* marker bit + extension length */ + *q++ = 0x00 | 0x71; /* for AC3 Audio (specifically on blue-rays) */ + } + + + if (is_dvb_subtitle) { + /* First two fields of DVB subtitles PES data: + * data_identifier: for DVB subtitle streams shall be coded with the value 0x20 + * subtitle_stream_id: for DVB subtitle stream shall be identified by the value 0x00 */ + *q++ = 0x20; + *q++ = 0x00; + } is_start = 0; } /* header size */ @@ -967,12 +1066,21 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st, } } } - memcpy(buf + TS_PACKET_SIZE - len, payload, len); + + if (is_dvb_subtitle && payload_size == len) { + memcpy(buf + TS_PACKET_SIZE - len, payload, len - 1); + buf[TS_PACKET_SIZE - 1] = 0xff; /* end_of_PES_data_field_marker: an 8-bit field with fixed contents 0xff for DVB subtitle */ + } else { + memcpy(buf + TS_PACKET_SIZE - len, payload, len); + } + payload += len; payload_size -= len; + mpegts_prefix_m2ts_header(s); avio_write(s->pb, buf, TS_PACKET_SIZE); } avio_flush(s->pb); + ts_st->prev_payload_key = key; } static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) @@ -983,8 +1091,8 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) 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; - int64_t dts = AV_NOPTS_VALUE, pts = AV_NOPTS_VALUE; + const int64_t delay = av_rescale(s->max_delay, 90000, AV_TIME_BASE)*2; + int64_t dts = pkt->dts, pts = pkt->pts; if (ts->reemit_pat_pmt) { av_log(s, AV_LOG_WARNING, "resend_headers option is deprecated, use -mpegts_flags resend_headers\n"); @@ -998,14 +1106,16 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT; } - if (pkt->pts != AV_NOPTS_VALUE) - pts = pkt->pts + delay; - if (pkt->dts != AV_NOPTS_VALUE) - dts = pkt->dts + delay; + if(ts->copyts < 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 set\n"); - return AVERROR(EINVAL); + av_log(s, AV_LOG_ERROR, "first pts value must be set\n"); + return AVERROR_INVALIDDATA; } ts_st->first_pts_check = 0; @@ -1014,9 +1124,12 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) uint32_t state = -1; if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001) { + if (!st->nb_frames) { av_log(s, AV_LOG_ERROR, "H.264 bitstream malformed, " - "no startcode found, use -bsf h264_mp4toannexb\n"); + "no startcode found, use the h264_mp4toannexb bitstream filter (-bsf h264_mp4toannexb)\n"); return AVERROR(EINVAL); + } + av_log(s, AV_LOG_WARNING, "H.264 bitstream error, startcode missing\n"); } do { @@ -1039,7 +1152,7 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) } else if (st->codec->codec_id == AV_CODEC_ID_AAC) { if (pkt->size < 2) { av_log(s, AV_LOG_ERROR, "AAC packet too short\n"); - return AVERROR(EINVAL); + return AVERROR_INVALIDDATA; } if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) { int ret; @@ -1048,7 +1161,7 @@ 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"); - return AVERROR(EINVAL); + return AVERROR_INVALIDDATA; } av_init_packet(&pkt2); @@ -1071,28 +1184,36 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt) } } - if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) { + if (pkt->dts != AV_NOPTS_VALUE) { + int i; + for(i=0; i<s->nb_streams; i++){ + AVStream *st2 = s->streams[i]; + MpegTSWriteStream *ts_st2 = st2->priv_data; + if( ts_st2->payload_size + && (ts_st2->payload_dts == AV_NOPTS_VALUE || dts - ts_st2->payload_dts > delay/2)){ + mpegts_write_pes(s, st2, ts_st2->payload, ts_st2->payload_size, + ts_st2->payload_pts, ts_st2->payload_dts, + ts_st2->payload_flags & AV_PKT_FLAG_KEY); + ts_st2->payload_size = 0; + } + } + } + + if (ts_st->payload_size && ts_st->payload_size + size > ts->pes_payload_size) { + mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size, + ts_st->payload_pts, ts_st->payload_dts, + ts_st->payload_flags & AV_PKT_FLAG_KEY); + ts_st->payload_size = 0; + } + + if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO || size > ts->pes_payload_size) { + av_assert0(!ts_st->payload_size); // for video and subtitle, write a single pes packet mpegts_write_pes(s, st, buf, size, pts, dts, pkt->flags & AV_PKT_FLAG_KEY); av_free(data); return 0; } - if (ts_st->payload_size + size > ts->pes_payload_size) { - if (ts_st->payload_size) { - mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_size, - ts_st->payload_pts, ts_st->payload_dts, - ts_st->payload_flags & AV_PKT_FLAG_KEY); - ts_st->payload_size = 0; - } - if (size > ts->pes_payload_size) { - mpegts_write_pes(s, st, buf, size, pts, dts, - pkt->flags & AV_PKT_FLAG_KEY); - av_free(data); - return 0; - } - } - if (!ts_st->payload_size) { ts_st->payload_pts = pts; ts_st->payload_dts = dts; @@ -1168,7 +1289,7 @@ 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", + .extensions = "ts,m2t,m2ts,mts", .priv_data_size = sizeof(MpegTSWrite), .audio_codec = AV_CODEC_ID_MP2, .video_codec = AV_CODEC_ID_MPEG2VIDEO, |