Broken support for FFMPEG for OpenCV with Nvidia Docker

Using docker image image nvcr.io/nvidia/l4t-cuda:11.4.19-devel as base for building CUDA helps:

--   Video I/O:
--     DC1394:                      YES (2.2.5)
--     FFMPEG:                      YES
--       avcodec:                   YES (58.54.100)
--       avformat:                  YES (58.29.100)
--       avutil:                    YES (56.31.100)
--       swscale:                   YES (5.5.100)
--       avresample:                NO
--     GStreamer:                   YES (1.16.3)
--     v4l/v4l2:                    YES (linux/videodev2.h)
-- 
--   Parallel framework:            pthreads
-- 
--   Trace:                         YES (with Intel ITT)
-- 
--   Other third-party libraries:
--     Lapack:                      NO
--     Eigen:                       NO
--     Custom HAL:                  YES (carotene (ver 0.0.1))
--     Protobuf:                    build (3.19.1)
-- 
--   NVIDIA CUDA:                   YES (ver 11.4, CUFFT CUBLAS)
--     NVIDIA GPU arch:             72 87
--     NVIDIA PTX archs:

Source: Unable to build OpenCV with CUDA in Docker on Jetson - #16 by AastaLLL

This means that some depencensies are missing in the image nvcr.io/nvidia/deepstream-l4t:6.2-samples