[FFmpeg-user] SCTE-35 passthrough in transcoding process

jamesed84.it at gmail.com jamesed84.it at gmail.com
Fri Jan 17 17:53:48 EET 2020


Hello,

 

I am transcoding cable sourced streams with an SCTE-35 data stream. The
output seems to drop the SCTE-35 type and shows just bin_data on an ffprobe.
I am wondering if there is a way to properly set that type on the output or
preserve it.

 

FFprobe of Source stream:

hostname:~$ ffprobe udp://@239.1.1.12:59012

ffprobe version 4.2.1 Copyright (c) 2007-2019 the FFmpeg developers

  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)

  configuration: --prefix=/home/circle/ffmpeg_build
--pkg-config-flags=--static
--extra-cflags=-I/home/circle/ffmpeg_build/include
--extra-ldflags=-L/home/circle/ffmpeg_build/lib --extra-libs='-lpthread -lm'
--bindir=/home/circle/bin --enable-libsrt --enable-gpl --enable-libass
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libvorbis --enable-libx264 --enable-libx265 --enable-nonfree
--enable-nvenc

  libavutil      56. 31.100 / 56. 31.100

  libavcodec     58. 54.100 / 58. 54.100

  libavformat    58. 29.100 / 58. 29.100

  libavdevice    58.  8.100 / 58.  8.100

  libavfilter     7. 57.100 /  7. 57.100

  libswscale      5.  5.100 /  5.  5.100

  libswresample   3.  5.100 /  3.  5.100

  libpostproc    55.  5.100 / 55.  5.100

[mpeg2video @ 0x560dabb59040] Invalid frame dimensions 0x0.

    Last message repeated 28 times

Input #0, mpegts, from 'udp://@239.1.1.12:59012':

  Duration: N/A, start: 10753.571022, bitrate: N/A

  Program 715

    Stream #0:0[0x120]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions,
59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc

    Stream #0:1[0x121](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
5.1(side), fltp, 384 kb/s

    Stream #0:2[0x122](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
stereo, fltp, 192 kb/s

    Stream #0:3[0x140]: Data: scte_35

Unsupported codec with id 98305 for input stream 3

 

 

Transcoding command and process:

hostname:~$ ffmpeg -hwaccel nvdec -i 'udp://@239.1.1.12:59012' -map 0
-vcodec h264_nvenc -b:v 1500K -s hd480 -acodec copy -f mpegts -metadata
service_name="YES" -metadata service_provider="company"
'udp://@239.1.124.12:59012?pkt_size=1316'

ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers

  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)

  configuration: --prefix=/home/circle/ffmpeg_build
--pkg-config-flags=--static
--extra-cflags=-I/home/circle/ffmpeg_build/include
--extra-ldflags=-L/home/circle/ffmpeg_build/lib --extra-libs='-lpthread -lm'
--bindir=/home/circle/bin --enable-libsrt --enable-gpl --enable-libass
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libvorbis --enable-libx264 --enable-libx265 --enable-nonfree
--enable-nvenc

  libavutil      56. 31.100 / 56. 31.100

  libavcodec     58. 54.100 / 58. 54.100

  libavformat    58. 29.100 / 58. 29.100

  libavdevice    58.  8.100 / 58.  8.100

  libavfilter     7. 57.100 /  7. 57.100

  libswscale      5.  5.100 /  5.  5.100

  libswresample   3.  5.100 /  3.  5.100

  libpostproc    55.  5.100 / 55.  5.100

[mpeg2video @ 0x556ef51bc800] Invalid frame dimensions 0x0.

    Last message repeated 10 times

Input #0, mpegts, from 'udp://@239.1.1.12:59012':

  Duration: N/A, start: 10015.331022, bitrate: N/A

  Program 715

    Stream #0:0[0x120]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002),
yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions,
59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc

    Stream #0:1[0x121](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
stereo, fltp, 192 kb/s

    Stream #0:2[0x122](spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
stereo, fltp, 192 kb/s

    Stream #0:3[0x140]: Data: scte_35

Stream mapping:

  Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_nvenc))

  Stream #0:1 -> #0:1 (copy)

  Stream #0:2 -> #0:2 (copy)

  Stream #0:3 -> #0:3 (copy)

Press [q] to stop, [?] for help

Output #0, mpegts, to 'udp://@239.1.124.12:59012?pkt_size=1316':

  Metadata:

    service_name    : YES

    service_provider: company

    encoder         : Lavf58.29.100

    Stream #0:0: Video: h264 (h264_nvenc) (Main), nv12, 852x480 [SAR 640:639
DAR 16:9], q=-1--1, 1500 kb/s, 59.94 fps, 90k tbn, 59.94 tbc

    Metadata:

      encoder         : Lavc58.54.100 h264_nvenc

    Side data:

      cpb: bitrate max/min/avg: 0/0/1500000 buffer size: 3000000 vbv_delay:
-1

    Stream #0:1(eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo,
fltp, 192 kb/s

    Stream #0:2(spa): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo,
fltp, 192 kb/s

    Stream #0:3: Data: scte_35

 

 

FFPROBE output information:

hostname:~$ ffprobe udp://@239.1.124.12:59012

ffprobe version 4.2.1 Copyright (c) 2007-2019 the FFmpeg developers

  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)

  configuration: --prefix=/home/circle/ffmpeg_build
--pkg-config-flags=--static
--extra-cflags=-I/home/circle/ffmpeg_build/include
--extra-ldflags=-L/home/circle/ffmpeg_build/lib --extra-libs='-lpthread -lm'
--bindir=/home/circle/bin --enable-libsrt --enable-gpl --enable-libass
--enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libvorbis --enable-libx264 --enable-libx265 --enable-nonfree
--enable-nvenc

  libavutil      56. 31.100 / 56. 31.100

  libavcodec     58. 54.100 / 58. 54.100

  libavformat    58. 29.100 / 58. 29.100

  libavdevice    58.  8.100 / 58.  8.100

  libavfilter     7. 57.100 /  7. 57.100

  libswscale      5.  5.100 /  5.  5.100

  libswresample   3.  5.100 /  3.  5.100

  libpostproc    55.  5.100 / 55.  5.100

Input #0, mpegts, from 'udp://@239.1.124.12:59012':

  Duration: N/A, start: 19.224000, bitrate: N/A

  Program 1

    Metadata:

      service_name    : YES

      service_provider: company

    Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B),
yuv420p(progressive), 852x480 [SAR 640:639 DAR 16:9], 59.94 fps, 59.94 tbr,
90k tbn, 119.88 tbc

    Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz,
stereo, fltp, 192 kb/s

    Stream #0:2[0x102](spa): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz,
stereo, fltp, 192 kb/s

    Stream #0:3[0x103]: Data: bin_data ([6][0][0][0] / 0x0006)

Unsupported codec with id 100359 for input stream 3



More information about the ffmpeg-user mailing list