Clean-up - release all allocated input/output buffers.This can be done synchronously (Windows & Linux) or asynchronously (Windows 10 and above only). Copy frames to input buffers and read bitstream from the output buffers.Broadly, the encoding flow consists of the following steps: NVENCODE API is designed to accept raw video frames (in YUV or RGB format) and output the H.264, HEVC or AV1 bitstream. Rest of this document focuses on the C-API exposed in nvEncodeAPI.h. For programmers preferring more high-level API with ready-to-use code, SDK includes sample C++ classes expose important API functions. NVENCODE API is a C-API, and uses a design pattern like C++ interfaces, wherein the application creates an instance of the API and retrieves a function pointer table to further interact with the encoder.

The NVENCODE API functions, structures and other parameters are exposed in nvEncodeAPI.h, which is included in the SDK. The client application can either link to these libraries at run-time using LoadLibrary() on Windows or dlopen() on Linux. These libraries are installed as part of the NVIDIA display driver. Developers can create a client application that calls NVENCODE API functions exposed by nvEncodeAPI.dll for Windows or libnvidia-encode.so for Linux. The command line version of NVEnc supports transcoding, but the application also comes as a plugin for Avi utl. NVEnc also brings to the table cuvid decoding capabilities, as well as muxing and demuxing functionality, based on libavformat and high-performance filtering. You can also define the number of consecutive B frames and choose specific output formats for the resulting file and the encoded audio. For instance, NVEnc enables you to set the output codec and the encoder preset and there are various other parameters to deal with here. There are various configuration options that you can tamper with. It performs conversions to raw H.264/AVC or H.265/HEVC and allows interlaced encoding. If the input is in raw format, the FPS rate and the input resolution have to be specified. The encoder supports the following file types as input : AVI, AVS, raw YU V, Y4M, VPY.

The application can verify the available GPU, codecs, audio encoders and decoders, formats and protocols. Running in the Windows console only, NVEnc comes with a plethora of functions, each explained when running the application with no arguments. NVEnc is a standalone console application that can be used for evaluating the performance of the HW encoder on a Windows computer equipped with an NVIDIA graphics card (GeForce Kepler gen or later, GT / GTX 6xx or later).

For ios instal NVEnc 7.30