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Diffstat (limited to 'libavformat/mpegtsenc.c')
-rw-r--r--libavformat/mpegtsenc.c78
1 files changed, 57 insertions, 21 deletions
diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
index 32a759c55b..3ace64bdd5 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
*/
@@ -24,6 +24,7 @@
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
+#include "libavutil/avassert.h"
#include "libavcodec/mpegvideo.h"
#include "avformat.h"
#include "internal.h"
@@ -75,6 +76,7 @@ typedef struct MpegTSWrite {
int pmt_start_pid;
int start_pid;
+ int m2ts_mode;
} MpegTSWrite;
static const AVOption options[] = {
@@ -85,9 +87,12 @@ static const AVOption options[] = {
{ "mpegts_service_id", "Set service_id field.",
offsetof(MpegTSWrite, service_id), AV_OPT_TYPE_INT, {.dbl = 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, {.dbl = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
+ offsetof(MpegTSWrite, pmt_start_pid), AV_OPT_TYPE_INT, {.dbl = 0x1000 }, 0x0010, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_start_pid", "Set the first pid.",
offsetof(MpegTSWrite, start_pid), AV_OPT_TYPE_INT, {.dbl = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
+ {"mpegts_m2ts_mode", "Enable m2ts mode.",
+ offsetof(MpegTSWrite, m2ts_mode), AV_OPT_TYPE_INT, {.dbl = -1 },
+ -1,1, AV_OPT_FLAG_ENCODING_PARAM},
{ "muxrate", NULL, offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT, {1}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
};
@@ -185,7 +190,7 @@ 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"
/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
@@ -288,6 +293,12 @@ 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==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 (lang) {
char *p;
char *next = lang->value;
@@ -435,9 +446,28 @@ 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);
}
@@ -588,6 +618,14 @@ 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;
@@ -620,12 +658,6 @@ 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;
@@ -652,6 +684,7 @@ 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);
}
@@ -677,6 +710,7 @@ 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);
}
@@ -913,6 +947,7 @@ static void mpegts_write_pes(AVFormatContext *s, AVStream *st,
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);
@@ -999,20 +1034,21 @@ static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
}
}
- 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);
- av_free(data);
- return 0;
- }
-
- if (ts_st->payload_index + size > DEFAULT_PES_PAYLOAD_SIZE) {
+ if (ts_st->payload_index && ts_st->payload_index + size > DEFAULT_PES_PAYLOAD_SIZE) {
mpegts_write_pes(s, st, ts_st->payload, ts_st->payload_index,
ts_st->payload_pts, ts_st->payload_dts,
ts_st->payload_flags & AV_PKT_FLAG_KEY);
ts_st->payload_index = 0;
}
+ if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO || size > DEFAULT_PES_PAYLOAD_SIZE) {
+ av_assert0(!ts_st->payload_index);
+ // 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_index) {
ts_st->payload_pts = pts;
ts_st->payload_dts = dts;
@@ -1063,7 +1099,7 @@ AVOutputFormat ff_mpegts_muxer = {
.name = "mpegts",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 transport stream format"),
.mime_type = "video/x-mpegts",
- .extensions = "ts,m2t",
+ .extensions = "ts,m2t,m2ts,mts",
.priv_data_size = sizeof(MpegTSWrite),
.audio_codec = CODEC_ID_MP2,
.video_codec = CODEC_ID_MPEG2VIDEO,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-21 01:17:38 +0000