I am trying to decode mpeg TS over UDP with subtitle stream into SDI port. Command: ffmpeg -i "udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buffer_size=13107200&fifo_size=1000000" -map 0:i:0x7d1 -map 0:i:0xbb9 -map 0:i:0x1389 -teletext_lines all -c:v v210 -f decklink 88:02a07762:00000000 if I don’t use the map command, the video and audio are working fine but the subtitle stream is ignored, if I specify the subtitles stream (PID 0x1389 in this example), I get the following error: Input #0, mpegts, from 'udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buffer_size=13107200&fifo_size=1000000': Duration: N/A, start: 43965.121844, bitrate: N/A Program 1 Stream #0:0[0x7d1]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k tbn Stream #0:1[0xbb9](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:2[0xfa1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:3[0x1389](spa,spa,spa,spa,spa,spa,spa): Subtitle: dvb_teletext (libzvbi_teletextdec) ([6][0][0][0] / 0x0006), 492x250 [sost#0:2 @ 0x55b721f91b40] Automatic encoder selection failed Default encoder for format decklink (codec eia_608) is probably disabled. Please choose an encoder manually. [sost#0:2 @ 0x55b721f91b40] Error selecting an encoder Izhar The information contained in this communication is intended solely for the use of the individual or entity to whom it is addressed and others authorized to receive it. It may contain confidential or legally privileged information. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by responding to this email and then delete it from your system. NovelSat is neither liable for the proper and complete transmission of the information contained in this communication nor for any delay in its receipt
On Thu, May 30, 2024 at 10:57 AM Izhar Marinov <izhar.m@novelsat.com> wrote:
I am trying to decode mpeg TS over UDP with subtitle stream into SDI port.
Command:
ffmpeg -i "udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buffer_size=13107200&fifo_size=1000000" -map 0:i:0x7d1 -map 0:i:0xbb9 -map 0:i:0x1389 -teletext_lines all -c:v v210 -f decklink 88:02a07762:00000000
if I don’t use the map command, the video and audio are working fine but the subtitle stream is ignored, if I specify the subtitles stream (PID 0x1389 in this example), I get the following error:
Input #0, mpegts, from 'udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buffer_size=13107200&fifo_size=1000000': Duration: N/A, start: 43965.121844, bitrate: N/A Program 1 Stream #0:0[0x7d1]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k tbn Stream #0:1[0xbb9](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:2[0xfa1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:3[0x1389](spa,spa,spa,spa,spa,spa,spa): Subtitle: dvb_teletext (libzvbi_teletextdec) ([6][0][0][0] / 0x0006), 492x250 [sost#0:2 @ 0x55b721f91b40] Automatic encoder selection failed Default encoder for format decklink (codec eia_608) is probably disabled. Please choose an encoder manually. [sost#0:2 @ 0x55b721f91b40] Error selecting an encoder
Output of teletext over the decklink output isn't supported currently. It's on my TODO list, but I haven't gotten around to it yet. I was looking to implement OP-47 for the HD domain and OP-42 for standard def. Devin -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: devin.heitmueller@ltnglobal.com
Thaks for the quick reply! I thought "Add support for EIA-708 output over SDI" patch is what required to support subtitles.... Any timeline for the OP-47/42 support ? Izhar -----Original Message----- From: ffmpeg-user <ffmpeg-user-bounces@ffmpeg.org> On Behalf Of Devin Heitmueller Sent: Thursday, May 30, 2024 6:06 PM To: FFmpeg user questions <ffmpeg-user@ffmpeg.org> Subject: Re: [FFmpeg-user] decklink SDI output with subtitles On Thu, May 30, 2024 at 10:57 AM Izhar Marinov <izhar.m@novelsat.com> wrote:
I am trying to decode mpeg TS over UDP with subtitle stream into SDI port.
Command:
ffmpeg -i "udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buf fer_size=13107200&fifo_size=1000000" -map 0:i:0x7d1 -map 0:i:0xbb9 -map 0:i:0x1389 -teletext_lines all -c:v v210 -f decklink 88:02a07762:00000000
if I don’t use the map command, the video and audio are working fine but the subtitle stream is ignored, if I specify the subtitles stream (PID 0x1389 in this example), I get the following error:
Input #0, mpegts, from 'udp://224.1.1.1:2000?localaddr=192.168.100.109&overrun_nonfatal=1&buffer_size=13107200&fifo_size=1000000': Duration: N/A, start: 43965.121844, bitrate: N/A Program 1 Stream #0:0[0x7d1]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 50 tbr, 90k tbn Stream #0:1[0xbb9](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:2[0xfa1](eng): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 384 kb/s (clean effects) Stream #0:3[0x1389](spa,spa,spa,spa,spa,spa,spa): Subtitle: dvb_teletext (libzvbi_teletextdec) ([6][0][0][0] / 0x0006), 492x250 [sost#0:2 @ 0x55b721f91b40] Automatic encoder selection failed Default encoder for format decklink (codec eia_608) is probably disabled. Please choose an encoder manually. [sost#0:2 @ 0x55b721f91b40] Error selecting an encoder
Output of teletext over the decklink output isn't supported currently. It's on my TODO list, but I haven't gotten around to it yet. I was looking to implement OP-47 for the HD domain and OP-42 for standard def. Devin -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: devin.heitmueller@ltnglobal.com _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-request@ffmpeg.org with subject "unsubscribe".
On Thu, May 30, 2024 at 11:28 AM Izhar Marinov <izhar.m@novelsat.com> wrote:
Thaks for the quick reply!
I thought "Add support for EIA-708 output over SDI" patch is what required to support subtitles....
No 708 is the standard for captions in the United States. It is transported differently than teletext.
Any timeline for the OP-47/42 support ?
Not at this time. I don't have an immediate need for it, but intended to get around to it for my lab use. Devin -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: devin.heitmueller@ltnglobal.com
participants (2)
-
Devin Heitmueller -
Izhar Marinov