jocover

thank you for your testing patch https://github.com/jocover/jetson-ffmpeg/commit/e892195797ada3599a737265150559fbac8d0151

I remember jetson nano nvenc does not support hardware timestamp, so I added V4L2_BUF_FLAG_TIMESTAMP_COPY flags

work fine on my jetson nano jocover@jetson-nano:~/ffmpeg$ ./ffmpeg -c:v h264_nvmpi -i /usr/src/nvidia/tegra_multimedia_api/data/Video/sample_outdoor_car_1080p_10fps.h264 -f null - ffmpeg version 61853f7 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 7 (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1)...

what is your JetPack version

added cmake patch https://github.com/jocover/jetson-ffmpeg/commit/bda55bf84a7d8129975b0db23c9ac1db96485379

> git apply seems OK > > ``` > # git apply -v ffmpeg_nvmpi.patch > Checking patch configure... > Checking patch libavcodec/Makefile... > Checking patch libavcodec/allcodecs.c... > Checking patch libavcodec/nvmpi_dec.c......

what's you l4t version

please update to the latest version,this work on 32.2.1 or latest

It may be caused by FFmpeg frame linesize is different with NVBuffer， I temporarily canceled this submission

Please use `sudo ldconfig` and `ldconfig -p| grep nvmpi` find libnvmpi.so.1.0.0 path /usr/local/lib directory/ is the default installation path libnvmpi.so.1.0.0 (libc6,AArch64) => /usr/local/lib/libnvmpi.so.1.0.0 libnvmpi.so (libc6,AArch64) => /usr/local/lib/libnvmpi.so