Fix ffmpeg cannot start because of loading shared lib

[hieulq]

Maybe after PR #16712 , ffmpeg build with JP6 seem broken with error /usr/lib/ffmpeg/jetson/bin/ffmpeg: error while loading shared libraries: libavdevice.so.60: cannot open shared object file: No such file or directory

Proposed change

Adding LD Path to frigate container while starting ffmpeg in tensorrt container

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code
• Documentation Update

Additional information

• This PR fixes or closes issue: fixes [Development]: tensorrt JP6 cannot load library libavdevice.so.60 #16845

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• The code has been formatted using Ruff (ruff format frigate)

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[hieulq]

sorry, there are some error when merging with #16835

=> ERROR [tensorrt tensorrt-base 3/6] COPY --from=trt-deps /usr/local/cuda-12.3/targets/x86_64-linux/lib/libcurand.so.* /usr/local/cuda/                                                      3.8s
------
 > [tensorrt tensorrt-base 3/6] COPY --from=trt-deps /usr/local/cuda-12.3/targets/x86_64-linux/lib/libcurand.so.* /usr/local/cuda/:
------
ERROR: target tensorrt: failed to solve: lstat /usr/local/cuda-12.3/targets/x86_64-linux/lib: no such file or directory
make: *** [docker/tensorrt/trt.mk:20: local-trt-jp6] Error 1

I will recheck that.

[hawkeye217]

@LanderN

Related discussion: #16845

[LanderN]

Previously (before #16712), jetson ffmpeg was installed to /usr/local. Now that the installation prefix moved to /usr/lib/ffmpeg/jetson, maybe the better fix would be to add an entry to /etc/ld.so.conf? (Probably by adding a new file in /etc/ld.so.conf.d/)

[NickM-27]

I believe that would be preferable