log_encoder_error  242 libavcodec/libvpxenc.c         log_encoder_error(avctx, buf);
log_encoder_error  418 libavcodec/libvpxenc.c         log_encoder_error(avctx, "Failed to initialize encoder");
log_encoder_error  426 libavcodec/libvpxenc.c             log_encoder_error(avctx, "Failed to initialize alpha encoder");
log_encoder_error  742 libavcodec/libvpxenc.c         log_encoder_error(avctx, "Error encoding frame");
log_encoder_error  750 libavcodec/libvpxenc.c             log_encoder_error(avctx, "Error encoding alpha frame");