FFmpeg Decoder

On the decoding side, V-Nova LCEVC decoding libraries are made available within tools, such as FFmpeg and FFplay. With the LCEVC-enabled FFmpeg decoder, most of the functionalities of FFmpeg and FFplay can be leveraged, such as: playback, decoding to YUV; and running metrics (PSNR, VMAF), without having to first decode to YUV, etc.

Important: A typical, non-LCEVC-enabled decoder always decodes LCEVC-enhanced streams without producing errors, but would decode only the lower-resolution base, ignoring the LCEVC enhancement. For full-resolution decoding, please ensure that an LCEVC-enabled decoder is used, e.g. according to example commands below:

Basic Playback

ffplay -vcodec lcevc_<codec> -i stream.ts

Where the value of -vcodec depends on the source, e.g lcevc_h264, lcevc_hevc or lcevc_av1.

Decoding to YUV

ffmpeg -vcodec lcevc_<codec> -i stream.ts -vcodec rawvideo decoded_video.yuv