Issue with UDP multicast input on Elemental Live/Elemental Conductor

0

I have two UDP multicast network inputs from two different sources, the first is a hardware encoder(AJA HELO) the other is from a server(ffmpeg). The encoder has an SDI input, while the ffmpeg server has a different UDP stream as the input. My issue is that on one Elemental encoder I can pickup both streams without issue, however on the other Elemental encoder, only one of the streams works. All encoding settings that I can see are the same, and both profiles on each encoder is setup the same and when I check the streams with ffprobe they seem almost identical. Both streams play without any issues in ffplay and VLC. I also ran them through the TS Analyzer(http://www.coexsi.fr/publications/mpegts-analyzer/) software to check the MPEG-TS configs, the only difference I can see is that the working stream has a PID 45 that lists as an unknown type, but then shows up as a PCR PID in TS analyzer. While the non-working video is only showing PCR on the video PID. The encoder that is working is on an older firmware, (2.12.5.304490) vs. (2.13.6.307349).

I can provide any additional info that would be helpful.


UDP STREAM 1 - from hw encoder (working) Input #0, mpegts, from 'udp://239.255.10.41:11111': Duration: N/A, start: 44325.081644, bitrate: N/A Program 1 Stream #0:0[0x18]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x16]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 196 kb/s

0x0000 - 0 PSI Program Association Table (PAT) 0x0016 - 22 PES Stream ID=0xC0 (Audio stream number #0) 0x0018 - 24 PES Stream ID=0xE0 (Video stream number #0) 0x002D - 45 Unknown Unknown 0x002E - 46 PSI Program Map Table (PMT)

First PAT found with version 0

  • transport_stream_id = 1234
  • section_number = 0
  • last_section_number = 0
  • section_length = 13
  • associations = 1 o program_number=1 for program_map_PID=46

New PMT PID=46 found with version 0

  • program_number = 1
  • section_number = 0
  • last_section_number = 0
  • section_length = 23
  • PCR_PID = 45

general: id: '0' stream_uri: udp://239.255.10.41:11111 program: '1' programs: '1': video_streams: - stream_id: '24' codec: H264 width: '1920' height: '1080' framerate: '29.970' SAR: '1:1' bitrate: 4 Mbit audio_streams: - stream_id: '22' codec: AAC channels: '2' sample_format: '1' sample_rate: '48000'

HELO settings: 1920x1080p 29.97fps H.264 @ 5.00Mbps, 120 GOP, MP, CAVLC, 192K audio, P Interval 1, H.264 Encoding Profile Main, Slices Per Frame 1, Entropy Coding CABAC, Stream Type RTP / UDP-TS.


UDP STREAM 2 - from ffmpeg (not working) Input #0, mpegts, from 'udp://239.255.10.199:1234': Duration: N/A, start: 300.697000, bitrate: N/A Program 1 Stream #0:0[0x18]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x16]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 196 kb/s

0x0000 - 0 PSI Program Association Table (PAT) 0x0011 - 17 DVB Service Description Table (SDT) 0x0016 - 22 PES Stream ID=0xC0 (Audio stream number #0) 0x0018 - 24 PES Stream ID=0xE0 (Video stream number #0) 0x002E - 46 PSI Program Map Table (PMT)

First PAT found with version 0

  • transport_stream_id = 1
  • section_number = 0
  • last_section_number = 0
  • section_length = 13
  • associations = 1 o program_number=1 for program_map_PID=46

New PMT PID=46 found with version 0

  • program_number = 1
  • section_number = 0
  • last_section_number = 0
  • section_length = 23
  • PCR_PID = 24

general: id: '0' stream_uri: udp://239.255.10.199:1234 program: '1' programs: '1': video_streams: - stream_id: '24' codec: H264 width: '1920' height: '1080' framerate: '29.970' SAR: '1:1' audio_streams: - stream_id: '22' service_name: Service01 codec: AAC channels: '2' sample_format: '1' sample_rate: '48000'

cmd: ffmpeg -re -thread_queue_size 1024 -i udp://@239.255.10.47:11111 -streamid 0:0x18 -c:v libx264 -profile:v main -g 120 -vf drawtext=fontfile=/Windows/Fonts/arial.ttf:"text='LATENCY TESTING %{localtime:%X}':rate=30:x=(w-tw)/2:y=(h-lh)/2:fontsize=72:fontcolor=white:box=1:boxcolor=black" -streamid 1:0x16 -c:a copy -f mpegts -mpegts_transport_stream_id 0x04D2 -mpegts_pmt_start_pid 0x002E -flush_packets 0 -mpegts_flags +resend_headers+pat_pmt_at_frames udp://239.255.10.199:1234?pkt_size=1316


  • WORKING ELEMENTAL ENC:

Elemental Live (2.12.5.304490)

OS: CentOS release 6.8 (Final) Security Patch: 2 Serial Number: S10176424500451 Processor: 2x Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz Memory: 15.54 gB GPU: 2x Tesla K10.G2.8GB, 2x Tesla K10.G1.8GB

  • NON-WORKING ELEMENTAL ENCS:

Elemental Conductor Live (3.6.3.500559) OS: CentOS release 6.9 (Final) Security Patch: 2 Serial Number: S6F16T6P3602120 Processor: 2x Intel(R) Xeon(R) CPU X5650 @ 2.67GHz Memory: 5.70 gB

Elemental Live (2.13.6.307349)

OS: CentOS release 6.9 (Final) Security Patch: 2 Serial Number: Unknown Processor: 2x Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz Memory: 15.55 gB GPU: 2x Tesla K10.G2.8GB, 2x Tesla K10.G1.8GB

asked a year ago349 views
1 Answer
1
Accepted Answer

Check that your firewall settings are good for the TS/UDP. The Elemental firewall restricts by Port.

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answered a year ago
  • Wow, thank you so much, I feel stupid now, but that was absolutely the issue...

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