FFmpeg Encoder

For encoding, FFmpeg can combine the V-Nova LCEVC encoder with other codec implementations supported by the V-Nova plug-in system, as illustrated in Figure 1.2. This single set of libraries is currently available with support for h.264 and HEVC codecs. Supported base encoders include x264 and x265 as well as many others (e.g. NVEnc, QSV, Xilinx NGCodec, and more). Please contact V-Nova through the Download Portal or via [e-mail] to request a full list of supported base encoder implementations.

Figure 1.2 — V-Nova LCEVC encoder and decoder dataflow

The encoded LCEVC enhancement is added to the Supplemental Enhancement Information (SEI) of the h.264 or HEVC Network Abstraction Layer (NAL) and is transmitted as standards-compliant metadata. In this way, the video stream can be decoded by any h.264 or HEVC compatible device at the base resolution, ensuring backwards compatibility.

To accommodate both the LCEVC and the base codec components (e.g. x264), this build of FFmpeg includes support for additional command-line parameters to configure LCEVC and the base encoder.

This version currently supports 8-bit, 4:2:0 encoding. 10-bit, 4:2:2 encoding is made available as untested functionality.

This build of FFmpeg supports most of the features and file types available within the FFmpeg project. The following input and output types are supported:

Input	Output
MXF (OP1a)	.ts
YUV	.mp4
mp4
ProRes