[FFmpeg-user] Read EIA-608 captions and re-mux into Mpegts as stream

[Tim DeNike]

I don't have the command on me. It was a month or so ago that I tried.
It was the readeia608 filter iirc.

Sent from my iPhone

> On May 29, 2017, at 11:21 AM, "lyncher at sapo.pt" <lyncher at sapo.pt> wrote:
>
>> On 29-05-2017 4:35, Tim DeNike wrote:
>> Im successfully transcoding a udp input MPEG2 TS stream into h264 with
>> NVENC and multicasting it onto the network.. The last piece of the puzzle
>> is to be able to read in the EIA-608 embedded CCs in the original video
>> stream and re-mux into the output TS as a separate stream.
>>
>> I can't seem to figure out how to do it.. I can pull out the EIA-608
>> captions but not simultaneously add them as a stream in the final TS file
>> while transcoding video and copying audio.
>>
>> Im sure there is some way to do it.  I just can't figure out how.
>>
>>  Here is my command line for the transcode without CC:
>>
>> /usr/local/bin/ffmpeg -threads auto -i "udp://
>> 10.98.98.251:50029?fifo_size=262144&buffer_size=262144&overrun_nonfatal=1"
>> -ss 00:00:10 -vf yadif=0:-1:0 -s hd1080 -c:v h264_nvenc -level:v 4
>> -profile:v high -maxrate 10000k -bf 4 -preset:v llhp -rc-lookahead 250
>> -rc:v ll_2pass_size -c:a copy -packetsize 1316 -avioflags direct -max_delay
>> 0 -f mpegts udp://239.33.35.201:1234
>>
>>
>> Version info:
>>
>> ffmpeg version 3.3.1 Copyright (c) 2000-2017 the FFmpeg developers
>>   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
>>   configuration: --extra-libs=-ldl
>> --extra-cflags='-I/root/sources/nvenc/Video_Codec_SDK_7.0.1/Samples/common/inc
>> -I/root/sources/bmsdk1054/Linux/include' --enable-gpl --enable-nonfree
>> --enable-nvenc --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis
>> --enable-libx264 --disable-libtheora --pkg-config=pkg-config --cpu=host
>> --enable-libzvbi --enable-libass --enable-decklink --enable-libnut
>> --enable-openssl --disable-ffserver --enable-cuda --enable-cuvid
>>   libavutil      55. 58.100 / 55. 58.100
>>   libavcodec     57. 89.100 / 57. 89.100
>>   libavformat    57. 71.100 / 57. 71.100
>>   libavdevice    57.  6.100 / 57.  6.100
>>   libavfilter     6. 82.100 /  6. 82.100
>>   libswscale      4.  6.100 /  4.  6.100
>>   libswresample   2.  7.100 /  2.  7.100
>>   libpostproc    54.  5.100 / 54.  5.100
>>
>>
>> Any help would be appreciated.
>>
>> Thanks!
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>
> What is the command line that  you're using to extract EIA-608 from the stream?
>
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