From: Caleb Sawyer <caleb.sawyer@gsdeng.com> Added metadata_descriptor and metadata_std_descriptor to the PMT for synchronous KLV streams. Asynchronous KLV streams remain as they were. The descriptors are required by MISB ST-1402.2 and are in accordance with ISO/IEC 13818-1. Signed-off-by: Caleb Sawyer <caleb.sawyer@gsdeng.com> --- libavformat/mpegtsenc.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c index 6935b71cfe..e99e189299 100644 --- a/libavformat/mpegtsenc.c +++ b/libavformat/mpegtsenc.c @@ -814,7 +814,28 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service) break; case AVMEDIA_TYPE_DATA: if (codec_id == AV_CODEC_ID_SMPTE_KLV) { - put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A')); + if (st->codecpar->profile == AV_PROFILE_KLVA_SYNC) { + const char *fmtIdent = "KLVA"; + *q++ = METADATA_DESCRIPTOR; + *q++ = 9; /* descriptor length */ + put16(&q, 0x0100); /* metadata_application_format */ + *q++ = 0xff; /* metadata_format */ + putbuf(&q, fmtIdent, 4); /* KLVA */ + *q++ = 0x00; /* metadata_service_id */ + *q++ = 0x0f; /* decoder_config_flags, DSM-CC_flat, reserved */ + *q++ = METADATA_STD_DESCRIPTOR; + *q++ = 9; /* descriptor length */ + *q++ = 0xc0; + put16(&q, 0x0000); /* reserved, metadata_input_leak_rate 0x01c4 */ + *q++ = 0xc0; + put16(&q, 0x0000); /* reserved, metadata_buffer_size 0x0400 */ + *q++ = 0xc0; + put16(&q, 0x0000); /* reserved, metadata_output_leak_rate */ + } else { + put_registration_descriptor(&q, MKTAG('K', 'L', 'V', 'A')); + } + } else if (codec_id == AV_CODEC_ID_SMPTE_2038) { + put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C')); } else if (codec_id == AV_CODEC_ID_SMPTE_2038) { put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C')); } else if (codec_id == AV_CODEC_ID_TIMED_ID3) { -- 2.47.1.windows.1