fixes #1990

- update EXTLIBS according to NVidia documentation:

diff --git a/Makefile.ffmpeg b/Makefile.ffmpeg
index e4cbcb0bf29e1ebb658ccd7faf5abb49f1c56829..5185252a582c32889f4317d327721eb93c6072ae 100644 (file)
--- a/Makefile.ffmpeg
+++ b/Makefile.ffmpeg
@@ -567,7 +567,8 @@ endif
 ifeq (yes,$(CONFIG_NVENC))
 
 ## YOU MUST INSTALL CUDA from NVIDIA for "libnpp" 
-EXTLIBS   += nvenc cuvid libnpp
+## https://developer.nvidia.com/blog/nvidia-ffmpeg-transcoding-guide/
+EXTLIBS   += cuda cuvid nvdec nvenc libnpp
 ENCODERS  += h264_nvenc hevc_nvenc
 DECODERS  += h264_cuvid hevc_cuvid vp8_cuvid vp9_cuvid mpeg2_cuvid
 HWACCELS  += h264_nvdec hevc_nvdec vp8_nvdec vp9_nvdec mjpeg_nvdec mpeg1_nvdec mpeg2_nvdec mpeg4_nvdec