From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id CD34E45244 for ; Thu, 16 Mar 2023 22:40:05 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BF1BB68C110; Fri, 17 Mar 2023 00:40:02 +0200 (EET) Received: from iq.passwd.hu (iq.passwd.hu [217.27.212.140]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id C2D2468C06B for ; Fri, 17 Mar 2023 00:39:56 +0200 (EET) Received: from localhost (localhost [127.0.0.1]) by iq.passwd.hu (Postfix) with ESMTP id 62E8CE7AF5 for ; Thu, 16 Mar 2023 23:40:04 +0100 (CET) X-Virus-Scanned: amavisd-new at passwd.hu Received: from iq.passwd.hu ([127.0.0.1]) by localhost (iq.passwd.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5Chkxv8KQQND for ; Thu, 16 Mar 2023 23:40:01 +0100 (CET) Received: from iq (iq [217.27.212.140]) by iq.passwd.hu (Postfix) with ESMTPS id ACEEEE6FD3 for ; Thu, 16 Mar 2023 23:40:01 +0100 (CET) Date: Thu, 16 Mar 2023 23:40:01 +0100 (CET) From: Marton Balint To: FFmpeg development discussions and patches In-Reply-To: <20230309170405.25457-2-dheitmueller@ltnglobal.com> Message-ID: References: <20230309170405.25457-1-dheitmueller@ltnglobal.com> <20230309170405.25457-2-dheitmueller@ltnglobal.com> MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH 2/2] Add support for preserving SMPTE 2038 when transcoding MPEG-TS streams X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: On Thu, 9 Mar 2023, Devin Heitmueller wrote: > Add the appropriate descriptors to the MPEG-TS demux and mux to > ensure that SMPTE 2038 VANC streams are properly preserved > when using codec copy (including adding the appropriate PMT > descriptors). > > The focus of this patch is TS input to TS output. A separate > patch adds support for output of 2038 VANC over decklink SDI. > > Signed-off-by: Devin Heitmueller > --- > libavcodec/codec_desc.c | 6 ++++++ > libavcodec/codec_id.h | 1 + > libavformat/mpegts.c | 1 + > libavformat/mpegtsenc.c | 5 +++++ > libavformat/mux.c | 6 ++++-- > 5 files changed, 17 insertions(+), 2 deletions(-) > > diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c > index e80ac07700..2830fd85fa 100644 > --- a/libavcodec/codec_desc.c > +++ b/libavcodec/codec_desc.c > @@ -3608,6 +3608,12 @@ static const AVCodecDescriptor codec_descriptors[] = { > .name = "klv", > .long_name = NULL_IF_CONFIG_SMALL("SMPTE 336M Key-Length-Value (KLV) metadata"), > }, > + { > + .id = AV_CODEC_ID_SMPTE_2038, > + .type = AVMEDIA_TYPE_DATA, > + .name = "smpte_2038", > + .long_name = NULL_IF_CONFIG_SMALL("SMPTE ST 2038 VANC in MPEG-2 TS"), > + }, > { > .id = AV_CODEC_ID_DVD_NAV, > .type = AVMEDIA_TYPE_DATA, > diff --git a/libavcodec/codec_id.h b/libavcodec/codec_id.h > index 89a4a0cb89..d6d4b6c44c 100644 > --- a/libavcodec/codec_id.h > +++ b/libavcodec/codec_id.h > @@ -579,6 +579,7 @@ enum AVCodecID { > AV_CODEC_ID_IDF, > AV_CODEC_ID_OTF, > AV_CODEC_ID_SMPTE_KLV, > + AV_CODEC_ID_SMPTE_2038, This should go to the end of the data codec list to retain ABI compatibility. Order in codec_desc.c should be the same. Regards, Marton > AV_CODEC_ID_DVD_NAV, > AV_CODEC_ID_TIMED_ID3, > AV_CODEC_ID_BIN_DATA, > diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c > index d97702fcd7..a8fa3c0b28 100644 > --- a/libavformat/mpegts.c > +++ b/libavformat/mpegts.c > @@ -866,6 +866,7 @@ static const StreamType REGD_types[] = { > { MKTAG('E', 'A', 'C', '3'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_EAC3 }, > { MKTAG('H', 'E', 'V', 'C'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_HEVC }, > { MKTAG('K', 'L', 'V', 'A'), AVMEDIA_TYPE_DATA, AV_CODEC_ID_SMPTE_KLV }, > + { MKTAG('V', 'A', 'N', 'C'), AVMEDIA_TYPE_DATA, AV_CODEC_ID_SMPTE_2038 }, > { MKTAG('I', 'D', '3', ' '), AVMEDIA_TYPE_DATA, AV_CODEC_ID_TIMED_ID3 }, > { MKTAG('V', 'C', '-', '1'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_VC1 }, > { MKTAG('O', 'p', 'u', 's'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_OPUS }, > diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c > index 3f201cce1d..0b38555362 100644 > --- a/libavformat/mpegtsenc.c > +++ b/libavformat/mpegtsenc.c > @@ -422,6 +422,9 @@ static int get_dvb_stream_type(AVFormatContext *s, AVStream *st) > case AV_CODEC_ID_TIMED_ID3: > stream_type = STREAM_TYPE_METADATA; > break; > + case AV_CODEC_ID_SMPTE_2038: > + stream_type = STREAM_TYPE_PRIVATE_DATA; > + break; > case AV_CODEC_ID_DVB_SUBTITLE: > case AV_CODEC_ID_DVB_TELETEXT: > case AV_CODEC_ID_ARIB_CAPTION: > @@ -804,6 +807,8 @@ static int mpegts_write_pmt(AVFormatContext *s, MpegTSService *service) > case AVMEDIA_TYPE_DATA: > 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_SMPTE_2038) { > + put_registration_descriptor(&q, MKTAG('V', 'A', 'N', 'C')); > } else if (codec_id == AV_CODEC_ID_TIMED_ID3) { > const char *tag = "ID3 "; > *q++ = METADATA_DESCRIPTOR; > diff --git a/libavformat/mux.c b/libavformat/mux.c > index 04de05ec17..0bc9b6b87d 100644 > --- a/libavformat/mux.c > +++ b/libavformat/mux.c > @@ -304,7 +304,8 @@ FF_ENABLE_DEPRECATION_WARNINGS > par->codec_tag = av_codec_get_tag(of->p.codec_tag, par->codec_id); > } > > - if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT) > + if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT && > + par->codec_id != AV_CODEC_ID_SMPTE_2038) > si->nb_interleaved_streams++; > } > si->interleave_packet = of->interleave_packet; > @@ -942,7 +943,8 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *pkt, > ++stream_count; > } else if (par->codec_type != AVMEDIA_TYPE_ATTACHMENT && > par->codec_id != AV_CODEC_ID_VP8 && > - par->codec_id != AV_CODEC_ID_VP9) { > + par->codec_id != AV_CODEC_ID_VP9 && > + par->codec_id != AV_CODEC_ID_SMPTE_2038) { > ++noninterleaved_count; > } > } > -- > 2.35.1.655.ga68dfadae5 > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".