[FFmpeg-user] ffmpeg cuvid not transcoding properly

[Carl Eugen Hoyos]

Am Do., 21. Nov. 2019 um 04:34 Uhr schrieb Andy <dssnosher at gmail.com>:
>
> It seems like again I hit the wall. While one mpeg2 source works with
> the mpeg2_cuvid option, the other gives me troubles.
>
> ffmpeg -threads 1 -vsync 1 -hwaccel cuvid -c:v mpeg2_cuvid -deint 1
> -drop_second_field 1 -i 'http://0.0.0.0:46007' -c:v h264_nvenc -vb
> 1000k -preset:v medium -c:a aac -ac 2 -ar 48k -ab 96k -map 0:0 -map
> 0:1 -f flv rtmp://0.0.0.0:1940/live/1
> ffmpeg version N-95728-g1354c39 Copyright (c) 2000-2019 the FFmpeg developers
>   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
>   configuration: --enable-cuda --enable-cuvid --enable-nvenc
> --enable-nonfree --enable-libnpp
> --extra-cflags=-I/usr/local/cuda/include
> --extra-ldflags=-L/usr/local/cuda/lib64 --enable-libx264
> --enable-libfdk-aac --enable-gpl
>   libavutil      56. 35.101 / 56. 35.101
>   libavcodec     58. 62.100 / 58. 62.100
>   libavformat    58. 35.100 / 58. 35.100
>   libavdevice    58.  9.100 / 58.  9.100
>   libavfilter     7. 66.100 /  7. 66.100
>   libswscale      5.  6.100 /  5.  6.100
>   libswresample   3.  6.100 /  3.  6.100
>   libpostproc    55.  6.100 / 55.  6.100
> [mpegts @ 0x3092a40] Could not find codec parameters for stream 0
> (Video: mpeg2video ([27][0][0][0] / 0x001B), none(tv)): unspecified
> size
> Consider increasing the value for the 'analyzeduration' and 'probesize' options
> Input #0, mpegts, from 'http://0.0.0.0:46007':
>   Duration: N/A, start: 67033.565011, bitrate: 192 kb/s
>   Program 107
>     Metadata:
>       service_name    : NTV
>       service_provider: NTV BD
>     Stream #0:0[0x327]: Video: mpeg2video ([27][0][0][0] / 0x001B),
> none(tv), 90k tbr, 90k tbn, 90k tbc

Feel free to record such a sample with wget, curl or tcpdump and provide
it if it allows to reproduce the issue.

Carl Eugen