FFMPEG ignores time stamps set during encoding with NVENC

Gaming and Visualization Technologies Video Processing & Optical Flow
1

Whenever I am muxing video stream in FFMPEG encoded with NVENC I receive the following message:

[mp4 @ 0000023836b82040] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly

I am setting timestamp on each encode input:

NV_ENC_PIC_PARAMS picParams = {};
picParams.version = NV_ENC_PIC_PARAMS_VER;
picParams.pictureStruct = NV_ENC_PIC_STRUCT_FRAME;

const double conversionFactor = 90000.0 / 10000000.0;
const int64_t ffmpegTimestamp = static_cast<int64_t>(timestamp * conversionFactor);
picParams.inputTimeStamp = picParams.frameIdx == 0? 0:ffmpegTimestamp;

//the rest of params...

I tried different timestamp resolutions, nothing. FFMPEG doesn’t catch those.
What is the correct way of doing that?

2

“This is deprecated and will stop working in the future. Fix your code to set the timestamps properly”

This is a message for us, ffmpeg developers, to fix our code, as some of public APIs got deprecated. This is like yuvj420p pixel format thar was deprecated 8 years ago, but is still used in mjpeg code.