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mpegtsmux: mux meta/x-id3

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6793>
This commit is contained in:
jadarve 2024-06-04 15:39:12 -05:00 committed by GStreamer Marge Bot
parent 0a57f361ce
commit 728c83f74d
6 changed files with 75 additions and 0 deletions
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1
subprojects/gst-plugins-bad/gst/mpegtsdemux/gstmpegdesc.h
View file

@ -239,5 +239,6 @@
#define DRF_ID_OPUS 0x4f707573
#define DRF_ID_EAC3 0x45414333 /* defined in A/52 Annex G */
#define DRF_ID_AC4 0x41432D34 /* defined in ETSI TS 103 190-2 Annex D */
#define DRF_ID_ID3 0x49443320 /* defined in SMPTE registration authority */
#endif /* __GST_MPEG_DESC_H__ */

2
subprojects/gst-plugins-bad/gst/mpegtsmux/gstbasetsmux.c
View file

@ -674,6 +674,8 @@ gst_base_ts_mux_create_or_update_stream (GstBaseTsMux * mux,
ts_pad->prepare_func = gst_base_ts_mux_prepare_opus;
} else if (strcmp (mt, "meta/x-klv") == 0) {
st = TSMUX_ST_PS_KLV;
} else if (strcmp (mt, "meta/x-id3") == 0) {
st = TSMUX_ST_PS_ID3;
} else if (strcmp (mt, "image/x-jpc") == 0) {
/*
* See this document for more details on standard:

1
subprojects/gst-plugins-bad/gst/mpegtsmux/gstmpegtsmux.c
View file

@ -125,6 +125,7 @@ static GstStaticPadTemplate gst_mpeg_ts_mux_sink_factory =
"audio/x-opus, "
"channels = (int) [1, 255];"
"subpicture/x-dvb; application/x-teletext; meta/x-klv, parsed=true;"
"meta/x-id3, parsed=true;"
"image/x-jpc, alignment = (string) frame, profile = (int)[0, 49151];"));
static GstStaticPadTemplate gst_mpeg_ts_mux_src_factory =

23
subprojects/gst-plugins-bad/gst/mpegtsmux/tsmux/tsmux.c
View file

@ -67,7 +67,9 @@
#include <string.h>
#include <gst/base/gstbytewriter.h>
#include <gst/mpegts/mpegts.h>
#include <gst/mpegtsdemux/gstmpegdesc.h>
#include "tsmux.h"
#include "tsmuxstream.h"
@ -1853,6 +1855,27 @@ tsmux_write_pmt (TsMux * mux, TsMuxProgram * program)
g_ptr_array_add (pmt->descriptors, descriptor);
}
/* Scan the streams looking for metadata streams */
for (i = 0; i < program->streams->len; i++) {
TsMuxStream *stream = g_ptr_array_index (program->streams, i);
if (stream->is_id3_metadata == TRUE) {
GstMpegtsMetadataPointerDescriptor metadata_pointer_descriptor;
metadata_pointer_descriptor.metadata_application_format =
GST_MPEGTS_METADATA_APPLICATION_FORMAT_IDENTIFIER_FIELD;
metadata_pointer_descriptor.metadata_format =
GST_MPEGTS_METADATA_FORMAT_IDENTIFIER_FIELD;
metadata_pointer_descriptor.metadata_format_identifier = DRF_ID_ID3;
metadata_pointer_descriptor.metadata_service_id = 0;
metadata_pointer_descriptor.program_number = program->pgm_number;
descriptor =
gst_mpegts_descriptor_from_metadata_pointer
(&metadata_pointer_descriptor);
g_ptr_array_add (pmt->descriptors, descriptor);
}
}
/* Write out the entries */
for (i = 0; i < program->streams->len; i++) {
GstMpegtsPMTStream *pmt_stream;

44
subprojects/gst-plugins-bad/gst/mpegtsmux/tsmux/tsmuxstream.c
View file

@ -69,6 +69,7 @@
#include <gst/mpegts/mpegts.h>
#include <gst/base/gstbytewriter.h>
#include <gst/mpegtsdemux/gstmpegdesc.h>
#include "tsmuxcommon.h"
#include "tsmuxstream.h"
@ -218,6 +219,14 @@ tsmux_stream_new (guint16 pid, guint stream_type, guint stream_number)
TSMUX_PACKET_FLAG_PES_FULL_HEADER |
TSMUX_PACKET_FLAG_PES_DATA_ALIGNMENT;
break;
case TSMUX_ST_PS_ID3:
stream->id = 0xBD; // private stream
stream->stream_type = TSMUX_ST_PES_METADATA;
stream->is_meta = TRUE;
stream->is_id3_metadata = TRUE;
stream->pi.flags |= TSMUX_PACKET_FLAG_PES_FULL_HEADER |
TSMUX_PACKET_FLAG_PES_DATA_ALIGNMENT;
break;
case TSMUX_ST_PS_OPUS:
/* FIXME: assign sequential extended IDs? */
stream->id = 0xBD;
@ -494,6 +503,12 @@ tsmux_stream_initialize_pes_packet (TsMuxStream * stream)
if ((stream->cur_pes_payload_size + hdr_len - 6) > G_MAXUINT16)
stream->cur_pes_payload_size = 0;
}
// stream_type specific flags
switch (stream->stream_type) {
case TSMUX_ST_PES_METADATA:
stream->pi.flags |= TSMUX_PACKET_FLAG_PES_DATA_ALIGNMENT;
break;
}
return TRUE;
}
@ -910,6 +925,35 @@ tsmux_stream_default_get_es_descrs (TsMuxStream * stream,
g_ptr_array_add (pmt_stream->descriptors, descriptor);
break;
case TSMUX_ST_PES_METADATA:
if (stream->is_id3_metadata) {
// metadata_descriptor
GstMpegtsMetadataDescriptor metadata_descriptor;
metadata_descriptor.metadata_application_format =
GST_MPEGTS_METADATA_APPLICATION_FORMAT_IDENTIFIER_FIELD;
metadata_descriptor.metadata_format =
GST_MPEGTS_METADATA_FORMAT_IDENTIFIER_FIELD;
metadata_descriptor.metadata_format_identifier = DRF_ID_ID3;
metadata_descriptor.metadata_service_id = 0;
metadata_descriptor.decoder_config_flags = 0x00;
metadata_descriptor.dsm_cc_flag = FALSE;
descriptor = gst_mpegts_descriptor_from_metadata (&metadata_descriptor);
g_ptr_array_add (pmt_stream->descriptors, descriptor);
// registration_descriptor
guint32 format_identifier = 0;
GST_WRITE_UINT32_BE (&format_identifier,
metadata_descriptor.metadata_format_identifier);
descriptor = gst_mpegts_descriptor_from_registration ((const char *)
&format_identifier, NULL, 0);
g_ptr_array_add (pmt_stream->descriptors, descriptor);
}
break;
case TSMUX_ST_PS_DVB_SUBPICTURE:
/* fallthrough ...
* that should never happen anyway as

4
subprojects/gst-plugins-bad/gst/mpegtsmux/tsmux/tsmuxstream.h
View file

@ -118,6 +118,7 @@ enum TsMuxStreamType {
/* later extensions */
TSMUX_ST_AUDIO_AAC = 0x0f,
TSMUX_ST_VIDEO_MPEG4 = 0x10,
TSMUX_ST_PES_METADATA = 0x15,
TSMUX_ST_VIDEO_H264 = 0x1b,
TSMUX_ST_VIDEO_HEVC = 0x24,
TSMUX_ST_VIDEO_JP2K = 0x21,
@ -130,6 +131,7 @@ enum TsMuxStreamType {
TSMUX_ST_PS_TELETEXT = 0x8d,
TSMUX_ST_PS_KLV = 0x8e, /* only used internally */
TSMUX_ST_PS_OPUS = 0x8f, /* only used internally */
TSMUX_ST_PS_ID3 = 0x90, /* only used internally */
TSMUX_ST_PS_DVD_SUBPICTURE = 0xff,
/* Non-standard definitions */
@ -226,6 +228,8 @@ struct TsMuxStream {
guint16 profile_and_level;
gboolean interlace_mode;
guint8 color_spec;
gboolean is_id3_metadata;
};
/* stream management */